Merge pull request #3031 from proddy/core3

build_webUI -> build-webUI

.github/workflows/dev_release.yml

@@ -28,7 +28,7 @@ jobs:
           node-version: 24
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
   
       - name: Enable Corepack
         run: corepack enable pnpm
@@ -62,13 +62,13 @@ jobs:
           platformio run
 
       - name: Commit the generated files
-        uses: stefanzweifel/git-auto-commit-action@v7
+        uses: stefanzweifel/git-auto-commit-action@v5
         with:
           commit_message: "chore: update generated files for v${{steps.build_info.outputs.VERSION}}"
 
       - name: Create GitHub Release
         id: 'automatic_releases'
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
         with:
           repo_token: '${{ secrets.GITHUB_TOKEN }}'
           title: Development Build v${{steps.build_info.outputs.VERSION}}

.github/workflows/github-releases-to-discord.yml

@@ -11,7 +11,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
         
       - name: GitHub Releases To Discord
         uses: SethCohen/github-releases-to-discord@v1.13.1

.github/workflows/pr_check.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: Install python 3.13
         uses: actions/setup-python@v6

.github/workflows/sonar_check.yml

@@ -19,7 +19,7 @@ jobs:
       BUILD_WRAPPER_OUT_DIR: bw-output
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Install Build Wrapper

.github/workflows/stable_release.yml

@@ -26,7 +26,7 @@ jobs:
           node-version: 24
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
   
       - name: Enable Corepack
         run: corepack enable pnpm
@@ -54,7 +54,7 @@ jobs:
           platformio run
 
       - name: Create GitHub Release
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
         with:
           repo_token: '${{ secrets.GITHUB_TOKEN }}'
           prerelease: false

.github/workflows/test_release.yml

@@ -28,7 +28,7 @@ jobs:
           node-version: 24
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: Enable Corepack
         run: corepack enable pnpm
@@ -63,7 +63,7 @@ jobs:
 
       - name: Create GitHub Release
         id: 'automatic_releases'
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
         with:
           repo_token: '${{ secrets.GITHUB_TOKEN }}'
           title: Test Build v${{steps.build_info.outputs.VERSION}}

CHANGELOG_LATEST.md

@@ -12,16 +12,14 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - prometheus metrics for temperature/analog/scheduler/custom [#2962](https://github.com/emsesp/EMS-ESP32/issues/2962)
 - boiler pumpkick [#2965](https://github.com/emsesp/EMS-ESP32/discussions/2965)
 - heatpump reset [#2933](https://github.com/emsesp/EMS-ESP32/issues/2933)
+- e-mail notification using ReadyMail Client
 - 2.nd freshwater module (dhw4, dhw5) [#2991](https://github.com/emsesp/EMS-ESP32/issues/2991)
 - full system backup and restore
-- auto-logic to set ht3/ems+ tx-mode
 
 ## Fixed
 
 - SRC climate creation [#2936](https://github.com/emsesp/EMS-ESP32/issues/2936) and [#2960](https://github.com/emsesp/EMS-ESP32/issues/2960)
 - missing translations [#3015](https://github.com/emsesp/EMS-ESP32/issues/3015)
-- custom entities check fetch length
-- modbus initialization [#3064](https://github.com/emsesp/EMS-ESP32/issues/3064)
 
 ## Changed
 
@@ -33,8 +31,8 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - support `minflowtemp` and `baseflowtemp` [#2969](https://github.com/emsesp/EMS-ESP32/discussions/2969)
 - update version if it is 00.00 in first read [#2981](https://github.com/emsesp/EMS-ESP32/issues/2981)
 - device class for % values [#2980](https://github.com/emsesp/EMS-ESP32/issues/2980)
+- use tasmota core 2026.03.30
+- secure mqtt uses ESP_SSLClient
 - fetch telegrams: set length to fetch [#3017](https://github.com/emsesp/EMS-ESP32/issues/3017)
 - move http client from stack to heap
 - heap optimizations [#3021](https://github.com/emsesp/EMS-ESP32/discussions/3021)
-- check and read 0x470 as summer2_typeids[0] only if received [#2686](https://github.com/emsesp/EMS-ESP32/issues/2686), [#3055](https://github.com/emsesp/EMS-ESP32/issues/3055)
-- default bus-id: gateway1(0x49), tx-mode: auto

boards/c3_mini_4M.json

@@ -5,7 +5,7 @@
       },
       "core": "esp32",
       "extra_flags": [
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
         "-DARDUINO_LOLIN_C3_MINI",
         "-DARDUINO_USB_MODE=1",
         "-DARDUINO_USB_CDC_ON_BOOT=1"

boards/s2_4M_P.json

@@ -6,7 +6,7 @@
       "core": "esp32",
       "extra_flags": [
         "-DBOARD_HAS_PSRAM",
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
         "-DARDUINO_USB_CDC_ON_BOOT=1",
         "-DARDUINO_USB_MODE=0"
       ],

boards/s3_32M_P.json

@@ -21,7 +21,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "32MB",
       "maximum_ram_size": 327680,

boards/s_16M.json

@@ -1,7 +1,7 @@
 {
     "build": {
       "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
       "f_cpu": "240000000L",
       "f_flash": "40000000L",
       "flash_mode": "dio",
@@ -19,7 +19,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "16MB",
       "maximum_ram_size": 327680,

boards/s_16M_P.json

@@ -19,7 +19,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "16MB",
       "maximum_ram_size": 327680,

boards/s_4M.json

@@ -1,7 +1,7 @@
 {
     "build": {
       "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
       "f_cpu": "240000000L",
       "f_flash": "40000000L",
       "flash_mode": "dio",

boards/seeed_xiao_esp32c6.json

@@ -2,6 +2,7 @@
   "build": {
     "core": "esp32",
     "extra_flags": [
+      "-DNO_TLS_SUPPORT",
       "-DARDUINO_XIAO_ESP32C6",
       "-DARDUINO_USB_MODE=1",
       "-DARDUINO_USB_CDC_ON_BOOT=1"

docs/dump_telegrams.csv

@@ -112,10 +112,10 @@ telegram_type_id,name,is_fetched
 0x02A0,RC300Curves, 
 0x02A1,RC300Curves, 
 0x02A2,RC300Curves, 
-0x02A5,RC300Monitor, 
+0x02A5,RC300Monitor,fetched
-0x02A6,RC300Monitor, 
+0x02A6,CRFMonitor, 
 0x02A7,RC300Monitor, 
-0x02A8,RC300Monitor, 
+0x02A8,CRFMonitor, 
 0x02A9,RC300Monitor, 
 0x02AA,RC300Monitor, 
 0x02AB,RC300Monitor, 
@@ -171,7 +171,6 @@ telegram_type_id,name,is_fetched
 0x0468,HPSet, 
 0x0469,HPSet, 
 0x046A,HPSet, 
-0x0470,RC300Summer2,fetched
 0x0471,RC300Summer2, 
 0x0472,RC300Summer2, 
 0x0473,RC300Summer2, 

interface/package.json

@@ -26,11 +26,11 @@
     "@alova/adapter-xhr": "2.3.1",
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.1",
-    "@mui/icons-material": "^9.0.1",
+    "@mui/icons-material": "^9.0.0",
-    "@mui/material": "^9.0.1",
+    "@mui/material": "^9.0.0",
     "@preact/compat": "^18.3.2",
     "@table-library/react-table-library": "4.1.15",
-    "alova": "3.5.1",
+    "alova": "^3.5.1",
     "async-validator": "^4.2.5",
     "etag": "^1.8.1",
     "formidable": "^3.5.4",
@@ -38,11 +38,11 @@
     "magic-string": "^0.30.21",
     "mime-types": "^3.0.2",
     "preact": "^10.29.1",
-    "react": "^19.2.6",
+    "react": "^19.2.5",
-    "react-dom": "^19.2.6",
+    "react-dom": "^19.2.5",
     "react-icons": "^5.6.0",
-    "react-router": "^7.15.0",
+    "react-router": "^7.14.1",
-    "react-toastify": "^11.1.0",
+    "react-toastify": "^11.0.5",
     "typesafe-i18n": "^5.27.1",
     "typescript": "^6.0.3"
   },
@@ -55,17 +55,16 @@
     "@types/node": "^25.6.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "axe-core": "^4.11.4",
+    "axe-core": "^4.11.3",
     "concurrently": "^9.2.1",
-    "eslint": "^10.3.0",
+    "eslint": "^10.2.1",
     "eslint-config-prettier": "^10.1.8",
     "prettier": "^3.8.3",
     "rollup-plugin-visualizer": "^7.0.1",
-    "terser": "^5.47.0",
+    "terser": "^5.46.1",
-    "typescript-eslint": "^8.59.2",
+    "typescript-eslint": "^8.58.2",
-    "vite": "^8.0.11",
+    "vite": "^8.0.8",
-    "vite-plugin-imagemin": "^0.6.1",
+    "vite-plugin-imagemin": "^0.6.1"
-    "vite-tsconfig-paths": "^6.1.1"
   },
-  "packageManager": "pnpm@10.33.4"
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
 }

interface/src/SignIn.tsx

@@ -18,7 +18,7 @@ import { PROJECT_NAME } from 'env';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SignInRequest } from 'types';
 import { onEnterCallback, updateValue } from 'utils';
-import { SIGN_IN_REQUEST_VALIDATOR, ValidationError, validate } from 'validators';
+import { SIGN_IN_REQUEST_VALIDATOR, validate } from 'validators';
 
 const SignIn = memo(() => {
   const authenticationContext = useContext(AuthenticationContext);
@@ -74,7 +74,7 @@ const SignIn = memo(() => {
       await validate(SIGN_IN_REQUEST_VALIDATOR, signInRequest);
       await signIn();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
       setProcessing(false);
     }
   }, [signInRequest, signIn, LL]);

interface/src/app/main/CustomEntitiesDialog.tsx

@@ -28,7 +28,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import { DeviceValueType, DeviceValueTypeNames, DeviceValueUOM_s } from './types';
 import type { EntityItem } from './types';
@@ -136,7 +136,7 @@ const CustomEntitiesDialog = ({
       }
       onSave(processedItem);
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [validator, editItem, onSave]);
 
@@ -215,7 +215,7 @@ const CustomEntitiesDialog = ({
                   name="value"
                   label={LL.DEFAULT(0) + ' ' + LL.VALUE(0)}
                   type="string"
-                  value={editItem.value}
+                  value={editItem.value as string}
                   variant="outlined"
                   onChange={updateFormValue}
                   fullWidth
@@ -260,7 +260,7 @@ const CustomEntitiesDialog = ({
                   margin="normal"
                   sx={{ width: '11ch' }}
                   type="string"
-                  value={editItem.device_id}
+                  value={editItem.device_id as string}
                   onChange={updateFormValue}
                   slotProps={{
                     input: {
@@ -280,7 +280,7 @@ const CustomEntitiesDialog = ({
                   margin="normal"
                   sx={{ width: '11ch' }}
                   type="string"
-                  value={editItem.type_id}
+                  value={editItem.type_id as string}
                   onChange={updateFormValue}
                   slotProps={{
                     input: {
@@ -381,7 +381,7 @@ const CustomEntitiesDialog = ({
                     fieldErrors={fieldErrors || {}}
                     name="factor"
                     label={LL.BITMASK()}
-                    value={editItem.factor}
+                    value={editItem.factor as string}
                     sx={{ width: '11ch' }}
                     variant="outlined"
                     onChange={updateFormValue}

interface/src/app/main/DevicesDialog.tsx

@@ -24,7 +24,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import { DeviceValueUOM, DeviceValueUOM_s } from './types';
 import type { DeviceValue } from './types';
@@ -67,7 +67,7 @@ const DevicesDialog = ({
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [validator, editItem, onSave]);
 

interface/src/app/main/SchedulerDialog.tsx

@@ -26,7 +26,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import { ScheduleFlag } from './types';
 import type { ScheduleItem } from './types';
@@ -120,7 +120,7 @@ const SchedulerDialog = ({
         await validate(validator, itemToSave);
         onSave(itemToSave);
       } catch (error) {
-        setFieldErrors((error as ValidationError).fieldErrors);
+        setFieldErrors(error as ValidateFieldsError);
       }
     },
     [validator, onSave]

interface/src/app/main/SensorsAnalogDialog.tsx

@@ -23,7 +23,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import { AnalogType, AnalogTypeNames, DeviceValueUOM_s } from './types';
 import type { AnalogSensor } from './types';
@@ -172,7 +172,7 @@ const SensorsAnalogDialog = ({
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [validator, editItem, onSave]);
 

interface/src/app/main/SensorsTemperatureDialog.tsx

@@ -21,7 +21,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import type { TemperatureSensor } from './types';
 
@@ -84,7 +84,7 @@ const SensorsTemperatureDialog = ({
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [validator, editItem, onSave]);
 

interface/src/app/main/types.ts

@@ -43,6 +43,16 @@ export interface Settings {
   modbus_port: number;
   modbus_max_clients: number;
   modbus_timeout: number;
+  email_enabled: boolean;
+  email_ssl?: boolean;
+  email_starttls?: boolean;
+  email_server: string;
+  email_port: number;
+  email_login: string;
+  email_pass: string;
+  email_sender: string;
+  email_recp: string;
+  email_subject: string;
   developer_mode: boolean;
 }
 

interface/src/app/settings/APSettings.tsx

@@ -21,7 +21,7 @@ import { useI18nContext } from 'i18n/i18n-react';
 import type { APSettingsType } from 'types';
 import { APProvisionMode } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, createAPSettingsValidator, validate } from 'validators';
+import { createAPSettingsValidator, validate } from 'validators';
 
 export const isAPEnabled = ({ provision_mode }: APSettingsType) =>
   provision_mode === APProvisionMode.AP_MODE_ALWAYS ||
@@ -86,7 +86,7 @@ const APSettings = () => {
       await validate(createAPSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [data, saveData]);
 

interface/src/app/settings/ApplicationSettings.tsx

@@ -28,12 +28,13 @@ import {
   FormLoader,
   MessageBox,
   SectionContent,
+  ValidatedPasswordField,
   ValidatedTextField,
   useLayoutTitle
 } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 import { API, getBoardProfile, readSettings, writeSettings } from '../../api/app';
 import { BOARD_PROFILES } from '../main/types';
@@ -153,7 +154,7 @@ const ApplicationSettings = () => {
       setFieldErrors(undefined);
       await validate(createSettingsValidator(data), data);
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     } finally {
       await saveData();
     }
@@ -351,6 +352,156 @@ const ApplicationSettings = () => {
             </Grid>
           </Grid>
         )}
+        <Typography color="secondary">eMail</Typography>
+        <BlockFormControlLabel
+          control={
+            <Checkbox
+              checked={data.email_enabled}
+              onChange={updateFormValue}
+              name="email_enabled"
+              disabled={!hardwareData.psram}
+            />
+          }
+          label={
+            <Typography color={!hardwareData.psram ? 'grey' : 'default'}>
+              Enable eMail notification
+              {!hardwareData.psram && (
+                <Typography variant="caption">
+                  &nbsp; &#40;{LL.IS_REQUIRED('PSRAM')}&#41;
+                </Typography>
+              )}
+            </Typography>
+          }
+        />
+        {data.email_enabled && (
+          <>
+            <Grid
+              container
+              spacing={2}
+              direction="row"
+              justifyContent="flex-start"
+              alignItems="flex-start"
+            >
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_server"
+                  label="SMTP Server"
+                  variant="outlined"
+                  value={data.email_server}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  sx={{ width: '12ch' }}
+                  name="email_port"
+                  variant="outlined"
+                  label="Port"
+                  value={numberValue(data.email_port)}
+                  type="number"
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid size={4} mt={!data.email_ssl && !data.email_starttls ? 0 : 3}>
+                {!data.email_starttls && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_ssl}
+                        onChange={updateFormValue}
+                        name="email_ssl"
+                        disabled={
+                          data.email_starttls || data.email_ssl === undefined
+                        }
+                      />
+                    }
+                    label="SSL/TLS"
+                  />
+                )}
+                {!data.email_ssl && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_starttls}
+                        onChange={updateFormValue}
+                        name="email_starttls"
+                        disabled={
+                          data.email_ssl || data.email_starttls === undefined
+                        }
+                      />
+                    }
+                    label="STARTTLS"
+                  />
+                )}
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_login"
+                  label="Login"
+                  variant="outlined"
+                  value={data.email_login}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedPasswordField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_pass"
+                  label="Password"
+                  variant="outlined"
+                  value={data.email_pass}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_sender"
+                  label="From"
+                  variant="outlined"
+                  value={data.email_sender}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_recp"
+                  label="To"
+                  variant="outlined"
+                  value={data.email_recp}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_subject"
+                  label="Subject"
+                  variant="outlined"
+                  value={data.email_subject}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+          </>
+        )}
         <Typography sx={{ pb: 1, pt: 2 }} variant="h6" color="primary">
           {LL.SENSORS()}
         </Typography>
@@ -677,7 +828,6 @@ const ApplicationSettings = () => {
               <MenuItem value={2}>EMS+</MenuItem>
               <MenuItem value={3}>HT3</MenuItem>
               <MenuItem value={4}>{LL.HARDWARE()}</MenuItem>
-              <MenuItem value={5}>Auto</MenuItem>
             </TextField>
           </Grid>
           <Grid>

interface/src/app/settings/MqttSettings.tsx

@@ -31,7 +31,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { MqttSettingsType } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, createMqttSettingsValidator, validate } from 'validators';
+import { createMqttSettingsValidator, validate } from 'validators';
 
 import { callAction } from '../../api/app';
 
@@ -94,7 +94,7 @@ const MqttSettings = () => {
       await validate(createMqttSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [data, saveData]);
 

interface/src/app/settings/NTPSettings.tsx

@@ -36,7 +36,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NTPSettingsType, Time } from 'types';
 import { formatLocalDateTime, updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 import { NTP_SETTINGS_VALIDATOR } from 'validators/ntp';
 
 import { TIME_ZONES, selectedTimeZone, useTimeZoneSelectItems } from './TZ';
@@ -133,7 +133,7 @@ const NTPSettings = () => {
       await validate(NTP_SETTINGS_VALIDATOR, data);
       await saveData();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [data, saveData]);
 

interface/src/app/settings/network/NetworkSettings.tsx

@@ -40,7 +40,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NetworkSettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 import { createNetworkSettingsValidator } from 'validators/network';
 
 import SystemMonitor from '../../status/SystemMonitor';
@@ -116,7 +116,7 @@ const NetworkSettings = () => {
       await validate(createNetworkSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
     deselectNetwork();
   }, [data, saveData, deselectNetwork]);

interface/src/app/settings/security/SecuritySettings.tsx

@@ -19,7 +19,7 @@ import { AuthenticatedContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SecuritySettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { SECURITY_SETTINGS_VALIDATOR, ValidationError, validate } from 'validators';
+import { SECURITY_SETTINGS_VALIDATOR, validate } from 'validators';
 
 const SecuritySettings = () => {
   const { LL } = useI18nContext();
@@ -58,7 +58,7 @@ const SecuritySettings = () => {
       await saveData();
       await authenticatedContext.refresh();
     } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
     }
   }, [data, saveData, authenticatedContext]);
 

interface/src/app/settings/security/User.tsx

@@ -24,7 +24,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { UserType } from 'types';
 import { updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 
 interface UserFormProps {
   creating: boolean;
@@ -69,7 +69,7 @@ const User: FC<UserFormProps> = ({
         await validate(validator, user);
         onDoneEditing();
       } catch (error) {
-        setFieldErrors((error as ValidationError).fieldErrors);
+        setFieldErrors(error as ValidateFieldsError);
       }
     }
   }, [user, validator, onDoneEditing]);

interface/src/app/status/Version.tsx

@@ -315,22 +315,13 @@ const InstallDialog = memo(
               fetchDevVersion ? latestDevVersion?.name : latestVersion?.name
             )}
           </Typography>
+
+          {upgradeImportantMessageType === 1 && LL.UPGRADE_IMPORTANT_MESSAGES_1()}
           {upgradeImportantMessageType === 2 && LL.UPGRADE_IMPORTANT_MESSAGES_2()}
-          {upgradeImportantMessageType === 1 && (
-            <>
-              {LL.UPGRADE_IMPORTANT_MESSAGES_1()}
-              <Typography sx={{ mt: 2 }}>
-                <Link to="/settings/downloadUpload" style={{ color: 'lightblue' }}>
-                  {LL.DOWNLOAD_SYSTEM_BACKUP()}
-                </Link>
-              </Typography>
-            </>
-          )}
           <Typography sx={{ mt: 2 }}>
             <Link
-              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
               target="_blank"
-              rel="noreferrer"
+              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
               style={{ color: 'lightblue' }}
             >
               {LL.ONLINE_HELP()}

interface/src/i18n/de/index.ts

@@ -187,7 +187,7 @@ const de: Translation = {
   COMPACT: 'Kompakte Darstellung',
   DOWNLOAD_SETTINGS_TEXT: 'Erstellen Sie eine Sicherung Ihrer Konfigurationen und Einstellungen',
   DOWNLOAD_SETTINGS_TEXT2: 'Exportiere alle Werte',
-  DOWNLOAD_SYSTEM_BACKUP: 'Systemsicherung',
+  DOWNLOAD_SYSTEM_BACKUP: 'System Sicherung',
   UPLOAD_TEXT: 'Laden Sie eine neue Firmware-Datei (.bin) oder eine Sicherungsdatei (.json) hoch',
   UPLOAD_DROP_TEXT: 'Legen Sie eine Firmware-Datei (.bin) ab oder klicken Sie hier',
   ERROR: 'Unerwarteter Fehler, bitte versuchen Sie es erneut.',
@@ -362,9 +362,9 @@ const de: Translation = {
   STORED_VERSIONS: 'Gespeicherte Versionen',
   ONLINE_HELP: 'Online-Hilfe',
   UPGRADE_IMPORTANT_MESSAGES: 'Wichtige Nachrichten aktualisieren',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Für diese Aktualisierung ist ein Werksreset erforderlich. Stellen Sie sicher, dass Sie zuerst eine Systemsicherung herunterladen, bevor Sie fortfahren, und laden Sie diese Datei dann nach der Installation der neuen Version hoch.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Diese Aktualisierung erfordert eine Werkseinstellung. Stellen Sie sicher, dass Sie zuerst eine Systemsicherung herunterladen, bevor Sie fortfahren, und laden Sie diese Datei dann nach der Installation der neuen Version hoch.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Sie aktualisieren auf eine neue Hauptversion. Stellen Sie sicher, dass Sie den ChangeLog für alle wichtigen Änderungen gelesen haben.',
-  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und Einstellungen erstellen. Alle Passwörter werden in dieser Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'
+  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und -einstellungen erstellen. Alle Passwörter werden im Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'
 
 };
 

interface/src/validators/shared.ts

@@ -1,20 +1,6 @@
-import type {
+import type { InternalRuleItem, ValidateOption } from 'async-validator';
-  InternalRuleItem,
-  ValidateFieldsError,
-  ValidateOption
-} from 'async-validator';
 import type Schema from 'async-validator';
 
-export class ValidationError extends Error {
-  readonly fieldErrors: ValidateFieldsError;
-
-  constructor(fieldErrors: ValidateFieldsError) {
-    super('Validation failed');
-    this.name = 'ValidationError';
-    this.fieldErrors = fieldErrors;
-  }
-}
-
 export const validate = <T extends object>(
   validator: Schema,
   source: Partial<T>,
@@ -22,7 +8,7 @@ export const validate = <T extends object>(
 ): Promise<T> =>
   new Promise((resolve, reject) => {
     void validator.validate(source, options ?? {}, (errors, fieldErrors) => {
-      errors ? reject(new ValidationError(fieldErrors)) : resolve(source as T);
+      errors ? reject(fieldErrors as Error) : resolve(source as T);
     });
   });
 

lib/espMqttClient/src/Config.h

@@ -49,6 +49,10 @@ the LICENSE file.
 #define EMC_CLIENTID_LENGTH 23 + 1
 #endif
 
+#ifdef EMSESP_MQTT_STACKSIZE
+#define EMC_TASK_STACK_SIZE EMSESP_MQTT_STACKSIZE
+#endif
+
 #ifndef EMC_TASK_STACK_SIZE
 #define EMC_TASK_STACK_SIZE 5120
 #endif
@@ -73,7 +77,3 @@ the LICENSE file.
 #define EMC_SIZE_POOL_ELEMENTS 128
 #endif
 #endif
-
-#ifndef  TASMOTA_SDK
-#define EMC_CLIENT_SECURE
-#endif

lib/espMqttClient/src/MqttClient.cpp

@@ -62,14 +62,19 @@ MqttClient::MqttClient(espMqttClientTypes::UseInternalTask useInternalTask, uint
   _xSemaphore = xSemaphoreCreateMutex();
   EMC_SEMAPHORE_GIVE();  // release before first use
   if (_useInternalTask == espMqttClientTypes::UseInternalTask::YES) {
+    if (core > 1) {
+      xTaskCreate((TaskFunction_t)_loop, "mqttclient", EMC_TASK_STACK_SIZE, this, priority, &_taskHandle);
+    } else {
       xTaskCreatePinnedToCore((TaskFunction_t)_loop, "mqttclient", EMC_TASK_STACK_SIZE, this, priority, &_taskHandle, core);
     }
+  }
 #else
   (void) useInternalTask;
   (void) priority;
   (void) core;
 #endif
   _clientId = _generatedClientId;
+  _core = core;
 }
 
 MqttClient::~MqttClient() {

lib/espMqttClient/src/MqttClient.h

@@ -69,6 +69,16 @@ class MqttClient {
   const char* getClientId() const;
   size_t queueSize();  // No const because of mutex
   void loop();
+  uint32_t stack() {
+#ifndef EMSESP_STANDALONE
+   return uxTaskGetStackHighWaterMark(_taskHandle);
+#else
+    return 0;
+#endif
+  }
+  uint8_t core() {
+   return  _core;
+  }
     
  protected:
   explicit MqttClient(espMqttClientTypes::UseInternalTask useInternalTask, uint8_t priority = 1, uint8_t core = 1);
@@ -98,6 +108,7 @@ class MqttClient {
   uint8_t _willQos;
   bool _willRetain;
   uint32_t _timeout;
+  uint8_t _core;
 
   // state is protected to allow state changes by the transport system, defined in child classes
   // eg. to allow AsyncTCP

lib/espMqttClient/src/Transport/ClientPosix.cpp

@@ -8,7 +8,7 @@ the LICENSE file.
 
 #include "ClientPosix.h"
 
-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)
 
 namespace espMqttClientInternals {
 

lib/espMqttClient/src/Transport/ClientPosix.h

@@ -8,7 +8,7 @@ the LICENSE file.
 
 #pragma once
 
-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)
 
 #include <stdio.h>
 #include <stdlib.h>

lib/espMqttClient/src/Transport/ClientSecureSync.cpp

@@ -6,28 +6,31 @@ For a copy, see <https://opensource.org/licenses/MIT> or
 the LICENSE file.
 */
 
-#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#ifndef NO_TLS_SUPPORT
 
 #include "ClientSecureSync.h"
-#include <lwip/sockets.h>  // socket options
+#include <lwip/sockets.h>
+#include "../Config.h"
 
 namespace espMqttClientInternals {
 
 ClientSecureSync::ClientSecureSync()
     : client() {
-  // empty
+    client.setClient(&basic_client, true);
+    client.setBufferSizes(EMC_RX_BUFFER_SIZE, EMC_TX_BUFFER_SIZE);
+    client.setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+}
+
+ClientSecureSync::~ClientSecureSync() {
+    stop();
 }
 
 bool ClientSecureSync::connect(IPAddress ip, uint16_t port) {
     bool ret = client.connect(ip, port); // implicit conversion of return code int --> bool
     if (ret) {
-    #if defined(ARDUINO_ARCH_ESP8266)
-    client.setNoDelay(true);
-    #elif defined(ARDUINO_ARCH_ESP32)
         // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
         int val = true;
-    client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+        basic_client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
-    #endif
     }
     return ret;
 }
@@ -35,13 +38,9 @@ bool ClientSecureSync::connect(IPAddress ip, uint16_t port) {
 bool ClientSecureSync::connect(const char * host, uint16_t port) {
     bool ret = client.connect(host, port); // implicit conversion of return code int --> bool
     if (ret) {
-    #if defined(ARDUINO_ARCH_ESP8266)
-    client.setNoDelay(true);
-    #elif defined(ARDUINO_ARCH_ESP32)
         // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
         int val = true;
-    client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+        basic_client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
-    #endif
     }
     return ret;
 }

lib/espMqttClient/src/Transport/ClientSecureSync.h

@@ -8,15 +8,11 @@ the LICENSE file.
 
 #pragma once
 
-#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#ifndef NO_TLS_SUPPORT
 
-// Added for EMS-ESP
+// #include "esp_tls.h"
-#include "../Config.h"
-#if defined(EMC_CLIENT_SECURE)
-#include <WiFiClientSecure.h> // includes IPAddress
-#else
 #include <WiFiClient.h>
-#endif
+#include <ESP_SSLClient.h>
 #include "Transport.h"
 
 namespace espMqttClientInternals {
@@ -24,6 +20,7 @@ namespace espMqttClientInternals {
 class ClientSecureSync : public Transport {
   public:
     ClientSecureSync();
+    ~ClientSecureSync();
     bool   connect(IPAddress ip, uint16_t port) override;
     bool   connect(const char * host, uint16_t port) override;
     size_t write(const uint8_t * buf, size_t size) override;
@@ -31,12 +28,9 @@ class ClientSecureSync : public Transport {
     void   stop() override;
     bool   connected() override;
     bool   disconnected() override;
-    // added for EMS-ESP
+
-#if defined(EMC_CLIENT_SECURE)
+    WiFiClient    basic_client;
-    WiFiClientSecure client;
+    ESP_SSLClient client;
-#else
-    WiFiClient client;
-#endif
 };
 
 } // namespace espMqttClientInternals

lib/espMqttClient/src/espMqttClient.cpp

@@ -8,50 +8,6 @@ the LICENSE file.
 
 #include "espMqttClient.h"
 
-#if defined(ARDUINO_ARCH_ESP8266)
-espMqttClient::espMqttClient()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
-    , _client() {
-    _transport = &_client;
-}
-
-espMqttClientSecure::espMqttClientSecure()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
-    , _client() {
-    _transport = &_client;
-}
-
-espMqttClientSecure & espMqttClientSecure::setInsecure() {
-    _client.client.setInsecure();
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setFingerprint(const uint8_t fingerprint[20]) {
-    _client.client.setFingerprint(fingerprint);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setTrustAnchors(const X509List * ta) {
-    _client.client.setTrustAnchors(ta);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setClientRSACert(const X509List * cert, const PrivateKey * sk) {
-    _client.client.setClientRSACert(cert, sk);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setClientECCert(const X509List * cert, const PrivateKey * sk, unsigned allowed_usages, unsigned cert_issuer_key_type) {
-    _client.client.setClientECCert(cert, sk, allowed_usages, cert_issuer_key_type);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setCertStore(CertStoreBase * certStore) {
-    _client.client.setCertStore(certStore);
-    return *this;
-}
-#endif
-
 #if defined(ARDUINO_ARCH_ESP32)
 espMqttClient::espMqttClient(espMqttClientTypes::UseInternalTask useInternalTask)
     : MqttClientSetup(useInternalTask)
@@ -78,51 +34,45 @@ espMqttClientSecure::espMqttClientSecure(uint8_t priority, uint8_t core)
 }
 
 espMqttClientSecure & espMqttClientSecure::setInsecure() {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
     _client.client.setInsecure();
 #endif
     return *this;
 }
 
 espMqttClientSecure & espMqttClientSecure::setCACert(const char * rootCA) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
     _client.client.setCACert(rootCA);
 #endif
     return *this;
 }
 
 espMqttClientSecure & espMqttClientSecure::setCertificate(const char * clientCa) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
     _client.client.setCertificate(clientCa);
 #endif
     return *this;
 }
 
 espMqttClientSecure & espMqttClientSecure::setPrivateKey(const char * privateKey) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
     _client.client.setPrivateKey(privateKey);
 #endif
     return *this;
 }
 
 espMqttClientSecure & espMqttClientSecure::setPreSharedKey(const char * pskIdent, const char * psKey) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
-    _client.client.setPreSharedKey(pskIdent, psKey);
 #endif
     return *this;
 }
 
 #endif
 
-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)
 espMqttClient::espMqttClient()
     : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
     , _client() {
     _transport = &_client;
 }
-#elif defined(_WIN32) || defined(__APPLE__)
-// Windows
-espMqttClient::espMqttClient()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO) {
-}
 #endif

lib/espMqttClient/src/espMqttClient.h

@@ -14,7 +14,7 @@ the LICENSE file.
 #if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
 #include "Transport/ClientSync.h"
 #include "Transport/ClientSecureSync.h"
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__APPLE__)
 #include "Transport/ClientPosix.h"
 #endif
 
@@ -65,10 +65,16 @@ class espMqttClientSecure : public MqttClientSetup<espMqttClientSecure> {
     espMqttClientSecure & setPreSharedKey(const char * pskIdent, const char * psKey);
 
   protected:
+#ifndef NO_TLS_SUPPORT
     espMqttClientInternals::ClientSecureSync _client;
+#else
+    espMqttClientInternals::ClientSync _client;
+#endif
 };
 
-#elif defined(__linux__)
+#endif
+
+#if defined(__linux__) || defined(__APPLE__)
 class espMqttClient : public MqttClientSetup<espMqttClient> {
   public:
     espMqttClient();
@@ -76,10 +82,4 @@ class espMqttClient : public MqttClientSetup<espMqttClient> {
   protected:
     espMqttClientInternals::ClientPosix _client;
 };
-#elif defined(_WIN32) || defined(__APPLE__)
-class espMqttClient : public MqttClientSetup<espMqttClient> {
-  public:
-    espMqttClient();
-};
-
 #endif

lib_standalone/emsuart_standalone.h

@@ -22,11 +22,10 @@
 #include "Arduino.h"
 
 #define EMS_TXMODE_OFF 0
-#define EMS_TXMODE_EMS 1
+#define EMS_TXMODE_DEFAULT 1
 #define EMS_TXMODE_EMSPLUS 2
 #define EMS_TXMODE_HT3 3
 #define EMS_TXMODE_HW 4
-#define EMS_TXMODE_AUTO 5
 
 namespace emsesp {
 

mock-api/package.json

@@ -15,5 +15,5 @@
     "itty-router": "^5.0.23",
     "prettier": "^3.8.3"
   },
-  "packageManager": "pnpm@10.33.1+sha512.05ba3c1d5d1c18f68df06470d74055e62d41fc110a0c660db1b2dfb2785327f04cf0f68345d4609bc52089e7fa0343c31593b2f9594e2c5d5da426230acc9820"
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
 }

platformio.ini

@@ -21,7 +21,7 @@ extra_configs =
   pio_local.ini
 
 [common]
-core_build_flags = -std=gnu++2a -O3 -flto=auto -Wno-type-limits -Wall -Wextra -Wno-unused-parameter -Wno-unused-variable -Wno-format -Wno-missing-field-initializers
+core_build_flags = -std=gnu++20 -O3 -flto=auto -Wno-type-limits -Wall -Wextra -Wno-unused-parameter -Wno-unused-variable -Wno-format -Wno-missing-field-initializers
 core_unbuild_flags = -std=gnu++11 -std=gnu++14 -std=gnu++17 -fno-lto
 
 my_build_flags =
@@ -53,13 +53,21 @@ build_flags =
 unbuild_flags =
   ${common.core_unbuild_flags}
 
+; 4MB Flash variants
+[espressif32_base_4M]
+framework = arduino
+board_build.partitions = partitions/esp32_partition_4M.csv
+board_upload.flash_size = 4MB
+board_build.app_partition_name = app0
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407
+
 ; 16MB Flash variants
 [espressif32_base_16M]
 framework = arduino
 board_build.partitions = partitions/esp32_partition_16M.csv
 board_upload.flash_size = 16MB
 board_build.app_partition_name = app0
-platform = espressif32@7.0.0 ; Arduino Core 2.0.17 / IDF 4.4.7
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407
 
 ; 32MB Flash variants
 [espressif32_base_32M]
@@ -67,29 +75,7 @@ framework = arduino
 board_build.partitions = partitions/esp32_partition_32M.csv
 board_upload.flash_size = 32MB
 board_build.app_partition_name = app0
-platform = espressif32@7.0.0 ; Arduino Core 2.0.17 / IDF 4.4.7
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407
-
-; use Tasmota's library for 4MB Flash variants.
-; Removes libs (like mbedtsl, so no WiFi_secure.h) to increase available heap
-[espressif32_base_T_4M]
-framework = arduino
-board_build.partitions = partitions/esp32_partition_4M.csv
-board_upload.flash_size = 4MB
-board_build.app_partition_name = app0
-platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip  ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
-; Tasmota Arduino Core 3.1.3.250302 based on IDF 5.3.2.250228
-; platform = https://github.com/tasmota/platform-espressif32/releases/download/2025.03.30/platform-espressif32.zip
-
-; use Tasmota's library for 16MB Flash variants.
-; Removes libs (like mbedtsl, so no WiFi_secure.h) to increase available heap
-[espressif32_base_T_16M]
-framework = arduino
-board_build.partitions = partitions/esp32_partition_16M.csv
-board_upload.flash_size = 16MB
-board_build.app_partition_name = app0
-platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
-; Tasmota Arduino Core 3.1.3.250302 based on IDF 5.3.2.250228
-; platform = https://github.com/tasmota/platform-espressif32/releases/download/2025.03.30/platform-espressif32.zip
 
 [env]
 build_flags =
@@ -105,7 +91,9 @@ board_build.filesystem = littlefs
 lib_deps =
   bblanchon/ArduinoJson @ 7.4.3
   ESP32Async/AsyncTCP @ 3.4.10
-  ESP32Async/ESPAsyncWebServer @ 3.11.0
+  ESP32Async/ESPAsyncWebServer @ 3.10.3
+  https://github.com/mobizt/ReadyMail.git @ 0.3.8
+  https://github.com/mobizt/ESP_SSLClient.git @ 3.1.3
   ; https://github.com/emsesp/EMS-ESP-Modules.git @ 1.0.8
 
 ; builds the web interface only, not the firmware
@@ -118,18 +106,17 @@ build_src_filter = -<*>
 
 ;
 ; Builds for different board types
-; We use Tasmota for boards without PSRAM as this framework has mbedtls removed to save memory.
 ; If you're building for a single target environment, we recommend creating a pio_local.ini (see example file)
 ;
 
 [env:s_4M]
-; 4MB ESP32 - no SSL, no PSRAM - like a BBQKees older S32 and E32 models - uses Tasmota
+; 4MB ESP32 - no SSL, no PSRAM - like a BBQKees older S32 and E32 models
-extends = espressif32_base_T_4M
+extends = espressif32_base_4M
 board = s_4M
 
 [env:s_16M]
-; 16MB ESP32 - no PSRAM - like a BBQKees later S32 V2 models - uses Tasmota
+; 16MB ESP32 - no PSRAM - like a BBQKees later S32 V2 models
-extends = espressif32_base_T_16M
+extends = espressif32_base_16M
 board = s_16M
 
 [env:s_16M_P]
@@ -148,24 +135,30 @@ extends = espressif32_base_32M
 board = s3_32M_P
 
 [env:s2_4M_P]
-; based on lolin_s2_mini 4MB with 2MB PSRAM - uses Tasmota
+; based on lolin_s2_mini 4MB with 2MB PSRAM
-extends = espressif32_base_T_4M
+extends = espressif32_base_4M
 board = s2_4M_P
 
 [env:c3_mini_4M]
-; based on lolin_c3_mini 4MB, no PSRAM - uses Tasmota
+; based on lolin_c3_mini 4MB, no PSRAM
-extends = espressif32_base_T_4M
+extends = espressif32_base_4M
 board = c3_mini_4M
 
 ; lolin C3 mini v1 needs special wifi initialization
 ; https://www.wemos.cc/en/latest/c3/c3_mini_1_0_0.html#about-wifi
 [env:c3_miniv1_4M]
-extends = espressif32_base_T_4M
+extends = espressif32_base_4M
 board = c3_mini_4M
 build_flags =
   ${common.build_flags}
   -DBOARD_C3_MINI_V1
 
+; XIAO ESP32C - 512KB SRAM & 4MB Flash - https://wiki.seeedstudio.com/xiao_esp32c6_getting_started/
+[env:c6_xiao_4M]
+extends = espressif32_base_4M
+board_build.app_partition_name = app0
+board = seeed_xiao_esp32c6
+
 ; foundation for building and testing natively, standalone without an ESP32
 ; use the `standalone` environment instead of `native` for testing
 [env:native]
@@ -175,7 +168,8 @@ build_flags =
 build_src_flags =
   -DEMSESP_STANDALONE -DEMSESP_TEST
   -DARDUINOJSON_ENABLE_ARDUINO_STRING=1
-  -std=gnu++2a -Og -ggdb
+  -DNO_TLS_SUPPORT
+  -std=gnu++20 -Og -ggdb
   -Wall -Wextra
   -Wno-unused-parameter -Wno-sign-compare -Wno-missing-braces
   -Wno-vla-cxx-extension -Wno-tautological-constant-out-of-range-compare
@@ -184,6 +178,7 @@ build_src_flags =
   -I./lib/uuid-common/src
   -I./lib/uuid-console/src
   -I./lib/uuid-log/src
+  -I./lib/semver
   -I./lib/PButton
   -I./lib/espMqttClient/src
   -I./lib/espMqttClient/src/Transport
@@ -213,8 +208,9 @@ build_src_flags =
   -DEMSESP_STANDALONE -DEMSESP_TEST
   -DEMSESP_UNITY
   -DARDUINOJSON_ENABLE_ARDUINO_STRING=1
+  -DNO_TLS_SUPPORT
   -DEMSESP_DEFAULT_LOCALE=\"en\" -DEMSESP_DEFAULT_BOARD_PROFILE=\"S32\"
-  -std=gnu++2a -Og -ggdb
+  -std=gnu++20 -Og -ggdb
   -Wall -Wextra
   -Wno-unused-parameter -Wno-sign-compare -Wno-missing-braces
   -Wno-vla-cxx-extension -Wno-tautological-constant-out-of-range-compare
@@ -223,6 +219,7 @@ build_src_flags =
   -I./lib/uuid-common/src
   -I./lib/uuid-console/src
   -I./lib/uuid-log/src
+  -I./lib/semver
   -I./lib/PButton
   -I./lib/espMqttClient/src
   -I./lib/espMqttClient/src/Transport

scripts/build_interface.py

@@ -102,7 +102,7 @@ def buildWeb():
         return False
 
 
-def build_webUI(*args, **kwargs):
+def build-webUI(*args, **kwargs):
     success = buildWeb()
     if not success:
         print("Web interface build failed!")
@@ -114,7 +114,7 @@ def build_webUI(*args, **kwargs):
 env.AddCustomTarget(
     name="build",
     dependencies=None,
-    actions=[build_webUI],
+    actions=[build-webUI],
     title="build web interface",
     description="installs pnpm packages, updates libraries and builds web UI",
     always_build=True

src/ESP32React/APSettingsService.cpp

@@ -10,7 +10,6 @@ APSettingsService::APSettingsService(AsyncWebServer * server, FS * fs, SecurityM
     , _reconfigureAp(false)
     , _connected(0) {
     addUpdateHandler([this] { reconfigureAP(); }, false);
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
 }
 
 void APSettingsService::begin() {
@@ -19,39 +18,27 @@ void APSettingsService::begin() {
     // reconfigureAP();
 }
 
-// wait 10 sec on STA disconnect before starting AP
-void APSettingsService::WiFiEvent(WiFiEvent_t event) {
-    const uint8_t was_connected = _connected;
-    switch (event) {
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-        _connected &= ~1U;
-        break;
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        _connected &= ~2U;
-        break;
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
-        _connected |= 1U;
-        break;
-    case ARDUINO_EVENT_ETH_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP6:
-        _connected |= 2U;
-        break;
-    default:
-        return;
-    }
-    // wait 10 sec before starting AP
-    if (was_connected && !_connected) {
-        _lastManaged = uuid::get_uptime();
-    }
-}
-
 void APSettingsService::reconfigureAP() {
     _lastManaged   = uuid::get_uptime() - MANAGE_NETWORK_DELAY;
     _reconfigureAp = true;
 }
 
 void APSettingsService::loop() {
+    const uint8_t was_connected = _connected;
+    if (WiFi.isConnected()) {
+        _connected |= 1U;
+    } else {
+        _connected &= ~1U;
+    }
+    if (ETH.connected()) {
+        _connected |= 2U;
+    } else {
+        _connected &= ~2U;
+    }
+    // wait 10 sec before starting AP
+    if (was_connected && !_connected) {
+        _lastManaged = uuid::get_uptime();
+    }
     const unsigned long currentMillis = uuid::get_uptime();
     if ((currentMillis - _lastManaged) >= MANAGE_NETWORK_DELAY) {
         _lastManaged = currentMillis;
@@ -76,11 +63,7 @@ void APSettingsService::manageAP() {
 }
 
 void APSettingsService::startAP() {
-#if ESP_IDF_VERSION_MAJOR < 5
-    WiFi.softAPenableIpV6(); // force IPV6, same as for WiFi - fixes https://github.com/emsesp/EMS-ESP32/issues/1922
-#else
     WiFi.softAPenableIPv6(); // force IPV6, same as for WiFi - fixes https://github.com/emsesp/EMS-ESP32/issues/1922
-#endif
     WiFi.softAPConfig(_state.localIP, _state.gatewayIP, _state.subnetMask);
     esp_wifi_set_bandwidth(static_cast<wifi_interface_t>(ESP_IF_WIFI_AP), WIFI_BW_HT20);
     WiFi.softAP(_state.ssid.c_str(), _state.password.c_str(), _state.channel, _state.ssidHidden, _state.maxClients);

src/ESP32React/APSettingsService.h

@@ -104,7 +104,6 @@ class APSettingsService : public StatefulService<APSettings> {
     void startAP();
     void stopAP();
     void handleDNS();
-    void WiFiEvent(WiFiEvent_t event);
 };
 
 #endif

src/ESP32React/ArduinoJsonJWT.cpp

@@ -70,12 +70,16 @@ void ArduinoJsonJWT::parseJWT(String jwt, JsonDocument & jsonDocument) {
  */
 String ArduinoJsonJWT::sign(String & payload) {
     std::array<unsigned char, 32> hmacResult{};
-    mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256),
+    {
-                    reinterpret_cast<const unsigned char *>(_secret.c_str()),
+        mbedtls_md_context_t ctx;
-                    _secret.length(),
+        mbedtls_md_type_t    md_type = MBEDTLS_MD_SHA256;
-                    reinterpret_cast<const unsigned char *>(payload.c_str()),
+        mbedtls_md_init(&ctx);
-                    payload.length(),
+        mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(md_type), 1);
-                    hmacResult.data());
+        mbedtls_md_hmac_starts(&ctx, reinterpret_cast<const unsigned char *>(_secret.c_str()), _secret.length());
+        mbedtls_md_hmac_update(&ctx, reinterpret_cast<const unsigned char *>(payload.c_str()), payload.length());
+        mbedtls_md_hmac_finish(&ctx, hmacResult.data());
+        mbedtls_md_free(&ctx);
+    }
     return encode(reinterpret_cast<const char *>(hmacResult.data()), hmacResult.size());
 }
 

src/ESP32React/ESP32React.cpp

@@ -6,7 +6,7 @@
 
 static constexpr const char CACHE_CONTROL[] = "public,max-age=60";
 
-// Single static-content handler serving all assets embedded in WWWData.h.
+// Single static-content handler serving all assets embedded in WWWData.h
 class StaticContentHandler : public AsyncWebHandler {
   public:
     bool canHandle(AsyncWebServerRequest * request) const override {
@@ -15,8 +15,7 @@ class StaticContentHandler : public AsyncWebHandler {
     }
 
     void handleRequest(AsyncWebServerRequest * request) override {
-        // OPTIONS is handled generically - the server-level CORS headers are
+        // OPTIONS is handled generically - the server-level CORS headers are attached via DefaultHeaders in ESP32React::begin().
-        // attached via DefaultHeaders in ESP32React::begin().
         if (request->method() == HTTP_OPTIONS) {
             request->send(200);
             return;
@@ -57,8 +56,7 @@ class StaticContentHandler : public AsyncWebHandler {
     }
 
     // Returns the /index.html asset, used as the SPA fallback for any GET
-    // that didn't match an embedded asset (React Router handles routing on
+    // that didn't match an embedded asset (React Router handles routing on the client side).
-    // the client side).
     static const WWWAsset * index_asset() {
         static const WWWAsset * cached = nullptr;
         if (cached == nullptr) {
@@ -106,4 +104,5 @@ void ESP32React::loop() {
     _networkSettingsService.loop();
     _apSettingsService.loop();
     _mqttSettingsService.loop();
+    _ntpSettingsService.loop();
 }

src/ESP32React/MqttSettingsService.cpp

@@ -9,7 +9,6 @@ MqttSettingsService::MqttSettingsService(AsyncWebServer * server, FS * fs, Secur
     , _disconnectedAt(0)
     , _disconnectReason(espMqttClientTypes::DisconnectReason::TCP_DISCONNECTED)
     , _mqttClient(nullptr) {
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
     addUpdateHandler([this] { onConfigUpdated(); }, false);
 }
 
@@ -29,6 +28,7 @@ MqttSettingsService::~MqttSettingsService() {
 void MqttSettingsService::begin() {
     _fsPersistence.readFromFS();
     startClient();
+    _reconfigureMqtt = true;
 }
 
 void MqttSettingsService::startClient() {
@@ -41,7 +41,7 @@ void MqttSettingsService::startClient() {
         delete _mqttClient;
         _mqttClient = nullptr;
     }
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
     if (_state.enableTLS) {
         isSecure = true;
         if (emsesp::EMSESP::system_.PSram() == 0) {
@@ -79,6 +79,10 @@ void MqttSettingsService::startClient() {
 }
 
 void MqttSettingsService::loop() {
+    if (_state.enabled && _mqttClient && _mqttClient->connected() && !emsesp::EMSESP::system_.network_connected()) {
+        // emsesp::EMSESP::logger().info("Network connection dropped, stopping MQTT client");
+        _mqttClient->disconnect(true);
+    }
     if (_reconfigureMqtt || (_disconnectedAt && static_cast<uint32_t>(uuid::get_uptime() - _disconnectedAt) >= MQTT_RECONNECTION_DELAY)) {
         // reconfigure MQTT client
         _disconnectedAt  = configureMqtt() ? 0 : uuid::get_uptime();
@@ -142,28 +146,6 @@ void MqttSettingsService::onConfigUpdated() {
     emsesp::EMSESP::mqtt_.start(); // reload EMS-ESP MQTT settings
 }
 
-void MqttSettingsService::WiFiEvent(WiFiEvent_t event) {
-    switch (event) {
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP6:
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
-        if (_state.enabled && !_mqttClient->connected()) {
-            onConfigUpdated();
-        }
-        break;
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        if (_state.enabled) {
-            _mqttClient->disconnect(true);
-        }
-        break;
-
-    default:
-        break;
-    }
-}
-
 bool MqttSettingsService::configureMqtt() {
     // disconnect if already connected
     if (_mqttClient->connected()) {
@@ -182,17 +164,13 @@ bool MqttSettingsService::configureMqtt() {
         }
 
         _reconfigureMqtt = false;
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
         if (_state.enableTLS) {
             if (_state.rootCA == "insecure") {
-#if defined(EMSESP_DEBUG)
                 emsesp::EMSESP::logger().debug("Start insecure MQTT");
-#endif
                 static_cast<espMqttClientSecure *>(_mqttClient)->setInsecure();
             } else {
-#if defined(EMSESP_DEBUG)
                 emsesp::EMSESP::logger().debug("Start secure MQTT with rootCA");
-#endif
                 String certificate = "-----BEGIN CERTIFICATE-----\n" + _state.rootCA + "\n-----END CERTIFICATE-----\n";
                 static_cast<espMqttClientSecure *>(_mqttClient)->setCACert(certificate.c_str());
             }
@@ -223,7 +201,7 @@ bool MqttSettingsService::configureMqtt() {
 }
 
 void MqttSettings::read(MqttSettings & settings, JsonObject root) {
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
     root["enableTLS"] = settings.enableTLS;
     root["rootCA"]    = settings.rootCA;
 #endif
@@ -262,7 +240,7 @@ StateUpdateResult MqttSettings::update(JsonObject root, MqttSettings & settings)
     MqttSettings newSettings;
     bool         changed = false;
 
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
     newSettings.enableTLS = root["enableTLS"];
     newSettings.rootCA    = root["rootCA"] | "";
 #else
@@ -393,7 +371,7 @@ StateUpdateResult MqttSettings::update(JsonObject root, MqttSettings & settings)
         emsesp::EMSESP::mqtt_.set_publish_time_heartbeat(newSettings.publish_time_heartbeat);
     }
 
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
     // strip down to certificate only
     newSettings.rootCA.replace("\r", "");
     newSettings.rootCA.replace("\n", "");

src/ESP32React/MqttSettingsService.h

@@ -134,7 +134,6 @@ class MqttSettingsService : public StatefulService<MqttSettings> {
     // the MQTT client instance
     MqttClient * _mqttClient;
 
-    void WiFiEvent(WiFiEvent_t event);
     void onMqttConnect(bool sessionPresent);
     void onMqttDisconnect(espMqttClientTypes::DisconnectReason reason);
     void

src/ESP32React/NTPSettingsService.cpp

@@ -11,37 +11,18 @@ NTPSettingsService::NTPSettingsService(AsyncWebServer * server, FS * fs, Securit
         configureTime(request, json);
     });
 
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
     addUpdateHandler([this] { configureNTP(); }, false);
 }
 
 void NTPSettingsService::begin() {
     _fsPersistence.readFromFS();
-    configureNTP();
 }
 
-// handles both WiFI and Ethernet
+void NTPSettingsService::loop() {
-void NTPSettingsService::WiFiEvent(WiFiEvent_t event) {
+    if (_connected != emsesp::EMSESP::system_.network_connected()) {
-    switch (event) {
+        _connected = emsesp::EMSESP::system_.network_connected();
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        if (_connected && emsesp::EMSESP::system_.ntp_connected()) {
-            emsesp::EMSESP::logger().info("WiFi connection dropped, stopping NTP");
-            _connected = false;
         configureNTP();
     }
-        break;
-
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP:
-        // emsesp::EMSESP::logger().info("Got IP address, starting NTP synchronization");
-        _connected = true;
-        configureNTP();
-        break;
-
-    default:
-        break;
-    }
 }
 
 // https://werner.rothschopf.net/microcontroller/202103_arduino_esp32_ntp_en.htm
@@ -55,9 +36,11 @@ void NTPSettingsService::configureNTP() {
     } else {
         setenv("TZ", _state.tzFormat.c_str(), 1);
         tzset();
+        if (esp_sntp_enabled()) {
             esp_sntp_stop();
         }
     }
+}
 
 void NTPSettingsService::configureTime(AsyncWebServerRequest * request, JsonVariant json) {
     if (json.is<JsonObject>()) {
@@ -68,7 +51,12 @@ void NTPSettingsService::configureTime(AsyncWebServerRequest * request, JsonVari
             tm.tm_isdst         = -1; // not set by strptime, tells mktime to determine daylightsaving
             time_t         time = mktime(&tm);
             struct timeval now  = {.tv_sec = time, .tv_usec = {}};
+#if CONFIG_IDF_TARGET_ESP32C3
+            // settimeofday and adjtime() does not work, unknown how to set time
+            emsesp::EMSESP::logger().warning("manual clock setting not possible");
+#else
             settimeofday(&now, nullptr);
+#endif
             AsyncWebServerResponse * response = request->beginResponse(200);
             request->send(response);
             return;

src/ESP32React/NTPSettingsService.h

@@ -44,6 +44,7 @@ class NTPSettingsService : public StatefulService<NTPSettings> {
     NTPSettingsService(AsyncWebServer * server, FS * fs, SecurityManager * securityManager);
 
     void        begin();
+    void        loop();
     static void ntp_received(struct timeval * tv);
 
   private:
@@ -51,7 +52,6 @@ class NTPSettingsService : public StatefulService<NTPSettings> {
     FSPersistence<NTPSettings> _fsPersistence;
     volatile bool              _connected;
 
-    void WiFiEvent(WiFiEvent_t event);
     void configureNTP();
     void configureTime(AsyncWebServerRequest * request, JsonVariant json);
 };

src/ESP32React/NetworkSettingsService.cpp

@@ -9,7 +9,7 @@ NetworkSettingsService::NetworkSettingsService(AsyncWebServer * server, FS * fs,
     , _stopping(false) {
     addUpdateHandler([this] { reconfigureWiFiConnection(); }, false);
     // Eth is also bound to the WifiGeneric event handler
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event, info); });
+    // Network.onEvent([this](arduino_event_id_t event, arduino_event_info_t info) { WiFiEvent(event, info); });
 }
 
 static bool formatBssid(const String & bssid, uint8_t (&mac)[6]) {
@@ -34,8 +34,8 @@ void NetworkSettingsService::begin() {
     WiFi.persistent(false);
     WiFi.setAutoReconnect(false);
 
-    WiFi.mode(WIFI_MODE_MAX);
+    WiFi.mode(WIFI_STA);
-    WiFi.mode(WIFI_MODE_NULL);
+    WiFi.mode(WIFI_OFF);
 
     // scan settings give connect issues since arduino 2.0.14 and arduino 3.x.x with some wifi systems
     // WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN); // default is FAST_SCAN
@@ -62,28 +62,124 @@ void NetworkSettingsService::loop() {
         _lastConnectionAttempt = currentMillis;
         manageSTA();
     }
+    static uint8_t connect = 0;
+    enum uint8_t {
+        CONNECT_IDLE = 0,
+        CONNECT_WAIT_ETH,
+        CONNECT_WAIT_IP4,
+        CONNECT_WAIT_ETH_IP4,
+        CONNECT_WAIT_IP6,
+        CONNECT_WAIT_ETH_IP6,
+        CONNECT_ETH_ACTIVE,
+        CONNECT_WIFI_ACTIVE
+    };
+    switch (connect) {
+    default:
+        connect = CONNECT_IDLE;
+        break;
+    case CONNECT_IDLE:
+        if (ETH.started() && _state.ssid.length() == 0) {
+            emsesp::EMSESP::logger().info("ETH started");
+            ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
+            ETH.enableIPv6(true);
+            if (_state.staticIPConfig) {
+                ETH.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2);
+            }
+            connect = CONNECT_WAIT_ETH;
+        }
+        if (WiFi.isConnected()) {
+            emsesp::EMSESP::logger().info("Wifi connected");
+            if (_state.tx_power == 0) {
+                setWiFiPowerOnRSSI();
+            }
+            mDNS_start();
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WAIT_IP4;
+        }
+        break;
+    case CONNECT_WAIT_ETH:
+        if (ETH.connected()) {
+            emsesp::EMSESP::logger().info("ETH connected");
+            emsesp::EMSESP::system_.ethernet_connected(true);
+            mDNS_start();
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WAIT_ETH_IP4;
+        }
+        break;
+    case CONNECT_WAIT_ETH_IP4:
+        if (ETH.hasIP()) {
+            emsesp::EMSESP::logger().info("ETH IPv4: %s", ETH.localIP().toString().c_str());
+            connect = CONNECT_WAIT_ETH_IP6;
+        }
+        if (!ETH.connected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_WAIT_ETH_IP6:
+        if (ETH.hasLinkLocalIPv6() && ETH.hasGlobalIPv6()) {
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        if (!ETH.connected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_ETH_ACTIVE:
+        if (!ETH.connected()) {
+            emsesp::EMSESP::logger().info("ETH disconnected");
+            emsesp::EMSESP::system_.ethernet_connected(false);
+            emsesp::EMSESP::system_.has_ipv6(false);
+            connect = CONNECT_IDLE;
+        }
+        break;
+    case CONNECT_WAIT_IP4:
+        if (!WiFi.localIP().toString().isEmpty()) {
+            emsesp::EMSESP::logger().info("Wifi IPv4: %s", WiFi.localIP().toString().c_str());
+            connect = CONNECT_WAIT_IP6;
+        }
+        if (!WiFi.isConnected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_WAIT_IP6:
+        if (WiFi.linkLocalIPv6().toString() != "::" && WiFi.globalIPv6().toString() != "::") {
+            emsesp::EMSESP::logger().info("Wifi IPv6: %s, %s", WiFi.linkLocalIPv6().toString().c_str(), WiFi.globalIPv6().toString().c_str());
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WIFI_ACTIVE;
+        }
+        if (!WiFi.isConnected()) {
+            connect = CONNECT_WIFI_ACTIVE;
+        }
+        break;
+    case CONNECT_WIFI_ACTIVE:
+        if (!WiFi.isConnected()) {
+            emsesp::EMSESP::logger().info("WiFi disconnected");
+            if (_stopping) {
+                _lastConnectionAttempt = 0;
+                _stopping              = false;
+            }
+            emsesp::EMSESP::system_.has_ipv6(false);
+            connect = CONNECT_IDLE;
+        }
+        break;
+    }
 }
 
 void NetworkSettingsService::manageSTA() {
     // Abort if already connected, or if we have no SSID
     if (WiFi.isConnected() || _state.ssid.length() == 0) {
-#if ESP_IDF_VERSION_MAJOR >= 5
-        if (_state.ssid.length() == 0) {
-            ETH.enableIPv6(true);
-        }
-#endif
         return;
     }
 
     // Connect or reconnect as required
     if ((WiFi.getMode() & WIFI_STA) == 0) {
-#if ESP_IDF_VERSION_MAJOR >= 5
+        WiFi.setHostname(_state.hostname.c_str());     // updates shared default_hostname buffer
+        WiFi.enableSTA(true);                          // creates the STA netif
+        WiFi.STA.setHostname(_state.hostname.c_str()); // pushes to esp_netif_set_hostname
         WiFi.enableIPv6(true);
-#endif
         if (_state.staticIPConfig) {
             WiFi.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2); // configure for static IP
         }
-        WiFi.setHostname(_state.hostname.c_str()); // set hostname
 
         // www.esp32.com/viewtopic.php?t=12055
         if (_state.bandwidth20) {
@@ -293,7 +389,7 @@ const char * NetworkSettingsService::disconnectReason(uint8_t code) {
 }
 
 // handles both WiFI and Ethernet
-void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info) {
+void NetworkSettingsService::WiFiEvent(arduino_event_id_t event, arduino_event_info_t info) {
 #ifndef EMSESP_STANDALONE
 
     switch (event) {
@@ -305,7 +401,7 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
         break;
 
     case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-        connectcount_++; // count the number of WiFi reconnects
+        connectcount_ = connectcount_ + 1; // count the number of WiFi reconnects
         emsesp::EMSESP::logger().warning("WiFi disconnected (#%d). Reason: %s (%d)",
                                          connectcount_,
                                          disconnectReason(info.wifi_sta_disconnected.reason),
@@ -325,11 +421,11 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
         break;
 
     case ARDUINO_EVENT_ETH_START:
-        // configure for static IP
+        // apply hostname FIRST so DHCP DISCOVER carries the correct name
+        ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
         if (_state.staticIPConfig) {
             ETH.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2);
         }
-        ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
         break;
 
     case ARDUINO_EVENT_ETH_GOT_IP:
@@ -360,25 +456,15 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
         if (_state.tx_power == 0) {
             setWiFiPowerOnRSSI();
         }
-#if ESP_IDF_VERSION_MAJOR < 5
-        WiFi.enableIpV6(); // force ipv6
-#endif
         break;
 
     case ARDUINO_EVENT_ETH_CONNECTED:
-#if ESP_IDF_VERSION_MAJOR < 5
-        ETH.enableIpV6(); // force ipv6
-#endif
         break;
 
         // IPv6 specific - WiFi/Eth
     case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
     case ARDUINO_EVENT_ETH_GOT_IP6: {
-#if !TASMOTA_SDK && ESP_IDF_VERSION_MAJOR < 5
-        auto ip6 = IPv6Address((uint8_t *)info.got_ip6.ip6_info.ip.addr).toString();
-#else
         auto         ip6  = IPAddress(IPv6, (uint8_t *)info.got_ip6.ip6_info.ip.addr, 0).toString();
-#endif
         const char * link = event == ARDUINO_EVENT_ETH_GOT_IP6 ? "Eth" : "WiFi";
         if (ip6.startsWith("fe80")) {
             emsesp::EMSESP::logger().info("IPv6 (%s) local: %s", link, ip6.c_str());

src/ESP32React/NetworkSettingsService.h

@@ -107,7 +107,7 @@ class NetworkSettingsService : public StatefulService<NetworkSettings> {
 
     volatile uint16_t connectcount_ = 0; // number of wifi reconnects
 
-    void         WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info);
+    void         WiFiEvent(arduino_event_id_t event, arduino_event_info_t info);
     void         mDNS_start() const;
     const char * disconnectReason(uint8_t code);
     void         reconfigureWiFiConnection();

src/ESP32React/NetworkStatus.cpp

@@ -2,7 +2,7 @@
 
 #include <emsesp.h>
 
-#ifdef TASMOTA_SDK
+#ifdef NO_TLS_SUPPORT
 #include "lwip/dns.h"
 #endif
 
@@ -32,21 +32,12 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
     if (ethernet_connected) {
         // Ethernet
         root["local_ip"]    = ETH.localIP().toString();
-#if ESP_IDF_VERSION_MAJOR < 5
-        root["local_ipv6"] = ETH.localIPv6().toString();
-#else
         root["local_ipv6"]  = ETH.linkLocalIPv6().toString();
-#endif
         root["mac_address"] = ETH.macAddress();
         root["subnet_mask"] = ETH.subnetMask().toString();
         root["gateway_ip"]  = ETH.gatewayIP().toString();
-#ifdef TASMOTA_SDK
-        IPAddress dnsIP1 = IPAddress(dns_getserver(0));
-        IPAddress dnsIP2 = IPAddress(dns_getserver(1));
-#else
         IPAddress dnsIP1    = ETH.dnsIP(0);
         IPAddress dnsIP2    = ETH.dnsIP(1);
-#endif
         if (IPUtils::isSet(dnsIP1)) {
             root["dns_ip_1"] = dnsIP1.toString();
         }
@@ -55,11 +46,7 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
         }
     } else if (wifi_status == WL_CONNECTED) {
         root["local_ip"]        = WiFi.localIP().toString();
-#if ESP_IDF_VERSION_MAJOR < 5
-        root["local_ipv6"] = WiFi.localIPv6().toString();
-#else
         root["local_ipv6"]      = WiFi.linkLocalIPv6().toString();
-#endif
         root["mac_address"]     = WiFi.macAddress();
         root["rssi"]            = WiFi.RSSI();
         root["ssid"]            = WiFi.SSID();
@@ -71,14 +58,8 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
         if (WiFi.gatewayIP() != INADDR_NONE) {
             root["gateway_ip"] = WiFi.gatewayIP().toString();
         }
-
-#ifdef TASMOTA_SDK
-        IPAddress dnsIP1 = IPAddress(dns_getserver(0));
-        IPAddress dnsIP2 = IPAddress(dns_getserver(1));
-#else
         IPAddress dnsIP1 = WiFi.dnsIP(0);
         IPAddress dnsIP2 = WiFi.dnsIP(1);
-#endif
         if (dnsIP1 != INADDR_NONE) {
             root["dns_ip_1"] = dnsIP1.toString();
         }

src/core/EMSESP_Version.h

@@ -69,9 +69,7 @@ class EMSESP_Version {
             return a.major_ < b.major_;
         if (a.minor_ != b.minor_)
             return a.minor_ < b.minor_;
-        if (a.patch_ != b.patch_)
         return a.patch_ < b.patch_;
-        return a.prerelease_ < b.prerelease_;
     }
 
     friend bool operator>(const EMSESP_Version & a, const EMSESP_Version & b) {
@@ -79,7 +77,7 @@ class EMSESP_Version {
     }
 
     friend bool operator==(const EMSESP_Version & a, const EMSESP_Version & b) {
-        return a.major_ == b.major_ && a.minor_ == b.minor_ && a.patch_ == b.patch_ && a.prerelease_ == b.prerelease_;
+        return a.major_ == b.major_ && a.minor_ == b.minor_ && a.patch_ == b.patch_;
     }
 
     friend bool operator!=(const EMSESP_Version & a, const EMSESP_Version & b) {

src/core/analogsensor.cpp

@@ -347,23 +347,13 @@ void AnalogSensor::reload(bool get_nvs) {
             sensor.polltime_ = sensor.value() != 0 ? uuid::get_uptime() + (sensor.factor() * 1000) : 0;
         } else if (sensor.type() >= AnalogType::PWM_0 && sensor.type() <= AnalogType::PWM_2) {
             LOG_DEBUG("PWM output on GPIO %02d", sensor.gpio());
-#if ESP_IDF_VERSION_MAJOR >= 5
             ledcAttach(sensor.gpio(), sensor.factor(), 13);
-#else
-            uint8_t channel = sensor.type() - AnalogType::PWM_0;
-            ledcSetup(channel, sensor.factor(), 13);
-            ledcAttachPin(sensor.gpio(), channel);
-#endif
             if (sensor.offset() > 100) {
                 sensor.set_offset(100);
             } else if (sensor.offset() < 0) {
                 sensor.set_offset(0);
             }
-#if ESP_IDF_VERSION_MAJOR >= 5
             ledcWrite(sensor.gpio(), (uint32_t)(sensor.offset() * 8191 / 100));
-#else
-            ledcWrite(channel, (uint32_t)(sensor.offset() * 8191 / 100));
-#endif
             sensor.set_value(sensor.offset());
             sensor.set_uom(DeviceValueUOM::PERCENT);
             publish_sensor(sensor);
@@ -1041,12 +1031,7 @@ bool AnalogSensor::command_setvalue(const char * value, const int8_t gpio) {
                 }
                 sensor.set_offset(val);
                 sensor.set_value(val);
-#if ESP_IDF_VERSION_MAJOR >= 5
                 ledcWrite(sensor.gpio(), (uint32_t)(sensor.offset() * 8191 / 100));
-#else
-                uint8_t channel = sensor.type() - AnalogType::PWM_0;
-                ledcWrite(channel, (uint32_t)(val * 8191 / 100));
-#endif
             } else {
                 return false;
             }

src/core/default_settings.h

@@ -26,11 +26,11 @@
 #endif
 
 #ifndef EMSESP_DEFAULT_TX_MODE
-#define EMSESP_DEFAULT_TX_MODE 5 // Auto
+#define EMSESP_DEFAULT_TX_MODE 1 // EMS1.0
 #endif
 
 #ifndef EMSESP_DEFAULT_EMS_BUS_ID
-#define EMSESP_DEFAULT_EMS_BUS_ID 0x49 // gateway 2
+#define EMSESP_DEFAULT_EMS_BUS_ID 0x0B // service key
 #endif
 
 #ifndef EMSESP_DEFAULT_SYSLOG_ENABLED
@@ -285,6 +285,8 @@ enum {
 #define EMSESP_PLATFORM "ESP32S3"
 #elif CONFIG_IDF_TARGET_ESP32 || EMSESP_STANDALONE
 #define EMSESP_PLATFORM "ESP32"
+#elif CONFIG_IDF_TARGET_ESP32C6
+#define EMSESP_PLATFORM "ESP32C6"
 #else
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -293,12 +295,9 @@ enum {
 #ifndef STRINGIZE
 #define STRINGIZE(s) #s
 #endif
-#ifdef TASMOTA_SDK
+
 #define ARDUINO_VERSION_STR(major, minor, patch) "Tasmota Arduino v" STRINGIZE(major) "." STRINGIZE(minor) "." STRINGIZE(patch)
-#else
-#define ARDUINO_VERSION_STR(major, minor, patch) "ESP32 Arduino v" STRINGIZE(major) "." STRINGIZE(minor) "." STRINGIZE(patch)
-#endif
 #define ARDUINO_VERSION ARDUINO_VERSION_STR(ESP_ARDUINO_VERSION_MAJOR, ESP_ARDUINO_VERSION_MINOR, ESP_ARDUINO_VERSION_PATCH)
-#endif
 
 #endif
+#endif

src/core/emsdevice.cpp

@@ -387,10 +387,10 @@ void EMSdevice::toggle_fetch(uint16_t telegram_id, bool toggle) {
 }
 
 // get status of automatic fetch for a telegramID
-bool EMSdevice::is_fetch(uint16_t telegram_id, uint8_t len) const {
+bool EMSdevice::is_fetch(uint16_t telegram_id) const {
     for (const auto & tf : telegram_functions_) {
         if (tf.telegram_type_id_ == telegram_id) {
-            return tf.fetch_ && tf.length_ >= len;
+            return tf.fetch_;
         }
     }
     return false;

src/core/emsdevice.h

@@ -362,7 +362,7 @@ class EMSdevice {
     const char * telegram_type_name(std::shared_ptr<const Telegram> telegram);
     void         fetch_values();
     void         toggle_fetch(uint16_t telegram_id, bool toggle);
-    bool         is_fetch(uint16_t telegram_id, uint8_t len = 0) const;
+    bool         is_fetch(uint16_t telegram_id) const;
     bool         is_received(uint16_t telegram_id) const;
     bool         has_telegram_id(uint16_t id) const;
     void         ha_config_clear();
@@ -448,14 +448,6 @@ class EMSdevice {
     static constexpr uint8_t EMS_DEVICE_ID_DHW2           = 0x29; // MM100 module as water station
     static constexpr uint8_t EMS_DEVICE_ID_DHW8           = 0x2F; // last DHW module id?
     static constexpr uint8_t EMS_DEVICE_ID_IPM_DHW        = 0x41; // IPM module as water station
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY1       = 0x48; // KM200, MX300, MX400
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY2       = 0x49;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY3       = 0x4A;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY4       = 0x4B;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY5       = 0x4C;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY6       = 0x4D;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY7       = 0x4E;
-    static constexpr uint8_t EMS_DEVICE_ID_GATEWAY8       = 0x4F;
 
     // generic type IDs
     static constexpr uint16_t EMS_TYPE_NAME        = 0x01; // device config for ems devices, name ascii on offset 27ff  for ems+

src/core/shuntingYard.cpp

@@ -380,12 +380,16 @@ std::string commands(std::string & expr, bool quotes) {
             if (return_code != CommandRet::OK && return_code != CommandRet::NO_VALUE) {
                 return expr = "";
             }
-
+            std::string data;
-            std::string data = output["api_data"] | "";
+            if (output["api_data"].is<std::string>()) {
+                data = output["api_data"].as<std::string>();
                 if (!isnum(data) && quotes) {
                     data.insert(data.begin(), '"');
                     data.insert(data.end(), '"');
                 }
+            } else {
+                serializeJson(output, data);
+            }
             expr.replace(f, l, data);
             e        = f + data.length();
             expr_new = Helpers::toLower(expr);
@@ -700,7 +704,6 @@ std::string compute(const std::string & expr) {
         std::string  cmd = expr_new.substr(f, e - f).c_str();
         JsonDocument doc;
         if (DeserializationError::Ok == deserializeJson(doc, cmd)) {
-            HTTPClient * http = new HTTPClient;
             std::string url, header_s, value_s, method_s, key_s, keys_s;
             // search keys lower case
             for (JsonPair p : doc.as<JsonObject>()) {
@@ -720,33 +723,126 @@ std::string compute(const std::string & expr) {
                     keys_s = p.key().c_str();
                 }
             }
-            if (http->begin(url.c_str())) {
+            bool        content_set = false;
+            std::string value       = doc[value_s] | "";
+            std::string method      = doc[method_s] | "GET";
+            if (value.length()) {
+                method = "POST";
+            }
+            std::string result;
             int         httpResult = 0;
+#ifndef NO_TLS_SUPPORT
+            if (Helpers::toLower(url.c_str()).starts_with("https://")) {
+                WiFiClient *    basic_client = new WiFiClient;
+                ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+                ssl_client->setInsecure(); // with root CA we should set here: ssl_client->setCACert(rootCACert);
+                ssl_client->setBufferSizes(1024, 1024);
+                ssl_client->setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+                url.replace(0, 8, "");
+                std::string host  = url;
+                auto        index = url.find_first_of('/');
+                if (index != std::string::npos) {
+                    host = url.substr(0, index);
+                    url.replace(0, index, "");
+                }
+                /*
+                index = host.find_first_of('@');
+                std::string auth;
+                if (index != std::string::npos) {
+                    auth = base64::encode(host.substr(0, index));
+                    host.replace(0, index, "");
+                }
+                */
+                ssl_client->setClient(basic_client);
+                if (ssl_client->connect(host.c_str(), 443)) {
+                    if (value.length() || Helpers::toLower(method) == "post") {
+                        ssl_client->print("POST ");
+                        ssl_client->print(url.c_str());
+                        ssl_client->println(" HTTP/1.1");
+                        ssl_client->print("Host: ");
+                        ssl_client->println(host.c_str());
+                        for (JsonPair p : doc[header_s].as<JsonObject>()) {
+                            content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
+                            ssl_client->print(p.key().c_str());
+                            ssl_client->print(": ");
+                            ssl_client->println(p.value().as<std::string>().c_str());
+                        }
+                        if (!content_set) {
+                            ssl_client->print("Content-Type: ");
+                            if (value.starts_with('{')) {
+                                ssl_client->println(asyncsrv::T_application_json);
+                            } else {
+                                ssl_client->println(asyncsrv::T_text_plain);
+                            }
+                        }
+                        ssl_client->print("Content-Length: ");
+                        ssl_client->println(value.length());
+                        ssl_client->println("Connection: close");
+                        ssl_client->print("\r\n");
+                        ssl_client->print(value.c_str());
+                    } else {
+                        ssl_client->print("GET ");
+                        ssl_client->print(url.c_str());
+                        ssl_client->println(" HTTP/1.1");
+                        ssl_client->print("Host: ");
+                        ssl_client->println(host.c_str());
+                        for (JsonPair p : doc[header_s].as<JsonObject>()) {
+                            ssl_client->print(p.key().c_str());
+                            ssl_client->print(": ");
+                            ssl_client->println(p.value().as<std::string>().c_str());
+                        }
+                        ssl_client->println("Connection: close");
+                    }
+                    auto ms = millis();
+                    while (!ssl_client->available() && millis() - ms < 3000) {
+                        delay(0);
+                    }
+                    while (ssl_client->available()) {
+                        result += (char)ssl_client->read();
+                    }
+                    ssl_client->stop();
+                    index = result.find_first_of(' ');
+                    if (index != std::string::npos) {
+                        httpResult = stoi(result.substr(index + 1, 3));
+                    }
+                    index = result.find("\r\n\r\n");
+                    if (index != std::string::npos) {
+                        result.replace(0, index + 4, "");
+                    }
+                }
+                delete ssl_client;
+                delete basic_client;
+            } else
+#endif
+                if (Helpers::toLower(url.c_str()).starts_with("http://")) {
+                HTTPClient * http = new HTTPClient;
+                if (http->begin(url.c_str())) {
                     for (JsonPair p : doc[header_s].as<JsonObject>()) {
                         http->addHeader(p.key().c_str(), p.value().as<std::string>().c_str());
+                        content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
                     }
-                std::string value  = doc[value_s] | "";
-                std::string method = doc[method_s] | "get";
-
-                // if there is data, force a POST
                     if (value.length() || Helpers::toLower(method) == "post") {
-                    if (value.find_first_of('{') != std::string::npos) {
+                        if (!content_set) {
-                        http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_application_json, false); // auto-set to JSON
+                            http->addHeader("Content-Type", value.starts_with('{') ? asyncsrv::T_application_json : asyncsrv::T_text_plain);
                         }
                         httpResult = http->POST(value.c_str());
                     } else {
                         httpResult = http->GET(); // normal GET
                     }
-
                     if (httpResult > 0) {
-                    std::string  result = http->getString().c_str();
+                        result = http->getString().c_str();
+                    }
+                }
+                http->end();
+                delete http;
+            }
+            if (httpResult == 200) {
                 std::string  key = doc[key_s] | "";
                 JsonDocument keys_doc; // JsonDocument to hold "keys" after doc is parsed with HTTP body
                 if (doc[keys_s].is<JsonArray>()) {
                     keys_doc.set(doc[keys_s].as<JsonArray>());
                 }
                 JsonArray keys = keys_doc.as<JsonArray>();
-
                 if (key.length() || !keys.isNull()) {
                     doc.clear();
                     if (DeserializationError::Ok == deserializeJson(doc, result)) {
@@ -767,10 +863,9 @@ std::string compute(const std::string & expr) {
                         }
                     }
                 }
-                    expr_new.replace(f, e - f, result.c_str());
+                expr_new.replace(f, e - f, result);
-                }
+            } else if (httpResult != 0) {
-                http->end();
+                EMSESP::logger().warning("URL command failed with https code: %d, response: %s", httpResult, result.c_str());
-                delete http;
             }
         }
         f = expr_new.find_first_of('{', e);

src/core/system.cpp

@@ -37,6 +37,15 @@
 #include "../test/test.h"
 #endif
 
+#ifndef NO_TLS_SUPPORT
+#define ENABLE_SMTP
+#define USE_ESP_SSLCLIENT
+#define READYCLIENT_SSL_CLIENT ESP_SSLClient
+#define READYCLIENT_TYPE_1 // TYPE 1 when using ESP_SSLClient
+#include <ESP_SSLClient.h>
+#include <ReadyMail.h>
+#endif
+
 namespace emsesp {
 
 // Languages supported. Note: the order is important
@@ -105,6 +114,115 @@ bool System::command_send(const char * value, const int8_t id) {
     return EMSESP::txservice_.send_raw(value); // ignore id
 }
 
+bool System::command_sendmail(const char * value, const int8_t id) {
+    bool     enabled = false;
+    bool     ssl, starttls;
+    uint16_t port;
+    String   server, login, pass, sender, recp, subject;
+    EMSESP::webSettingsService.read([&](WebSettings & settings) {
+        enabled  = settings.email_enabled;
+        ssl      = settings.email_ssl;
+        starttls = settings.email_starttls;
+        server   = settings.email_server;
+        port     = settings.email_port;
+        login    = settings.email_login;
+        pass     = settings.email_pass;
+        sender   = settings.email_sender;
+        recp     = settings.email_recp;
+        subject  = settings.email_subject;
+    });
+    if (!enabled) {
+        return false;
+    }
+    LOG_DEBUG("Command sendmail port %d%s called with '%s'", port, ssl ? " (SSL)" : starttls ? " (STARTTLS)" : "", value);
+    // LOG_DEBUG("Command sendmail port %d called with '%s'", port, value);
+    bool success = false;
+
+#ifndef NO_TLS_SUPPORT
+    WiFiClient *    basic_client = new WiFiClient;
+    ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+    ReadyClient *   r_client     = new ReadyClient(*ssl_client);
+    SMTPClient *    smtp         = new SMTPClient(*r_client);
+
+    ssl_client->setClient(basic_client);
+    ssl_client->setInsecure();
+    ssl_client->setBufferSizes(1024, 1024);
+    r_client->addPort(port, starttls ? readymail_protocol_tls : ssl ? readymail_protocol_ssl : readymail_protocol_plain_text);
+
+    // smtp->connect(server, port, sendmailCallback);
+    smtp->connect(server, port);
+    if (!smtp->isConnected()) {
+        LOG_ERROR("Sendmail connection error");
+        delete smtp;
+        delete r_client;
+        delete ssl_client;
+        delete basic_client;
+        return false;
+    }
+
+    // LOG_INFO("authenticate %s:%s", login.c_str(), pass.c_str());
+    smtp->authenticate(login, pass, readymail_auth_password);
+    if (!smtp->isAuthenticated()) {
+        LOG_ERROR("Sendmail authenticate error");
+        delete smtp;
+        delete r_client;
+        delete ssl_client;
+        delete basic_client;
+        return false;
+    }
+    JsonDocument doc;
+    String       body = value;
+    if (body.length()) {
+        auto error = deserializeJson(doc, (const char *)value);
+        if (!error && doc.as<JsonObject>().size() >= 0) {
+            subject = doc["subject"] | subject;
+            recp    = doc["to"] | recp;
+            sender  = doc["from"] | sender;
+            body    = doc["body"] | body;
+        }
+    }
+
+    SMTPMessage & msg = smtp->getMessage();
+    msg.headers.add(rfc822_subject, subject);
+    msg.headers.add(rfc822_from, sender);
+    msg.headers.add(rfc822_to, recp);
+
+    // Use addCustom to add custom header e.g. Importance and Priority.
+    // msg.headers.addCustom("Importance", PRIORITY);
+    // msg.headers.addCustom("X-MSMail-Priority", PRIORITY);
+    // msg.headers.addCustom("X-Priority", PRIORITY_NUM);
+    EMSESP::webSchedulerService.computed_value.clear();
+    EMSESP::webSchedulerService.raw_value = body.c_str();
+    for (uint16_t wait = 0; wait < 2000 && !EMSESP::webSchedulerService.raw_value.empty(); wait++) {
+        delay(1);
+    }
+    if (!EMSESP::webSchedulerService.computed_value.empty()) {
+        body = EMSESP::webSchedulerService.computed_value.c_str();
+        EMSESP::webSchedulerService.computed_value.clear();
+        EMSESP::webSchedulerService.computed_value.shrink_to_fit(); // free allocated memory
+    }
+    msg.text.body(body);
+
+    // bodyText.replace("\r\n", "<br>\r\n");
+    // msg.html.body("<html><body><div style=\"color:#cc0066;\">" + bodyText + "</div></body></html>");
+    // msg.html.transferEncoding("base64");
+
+    // With embedFile function, the html message will send as attachment.
+    // if (EMBED_MESSAGE)
+    //    msg.html.embedFile(true, "msg.html", embed_message_type_attachment);
+
+    msg.timestamp = time(nullptr);
+
+    success = smtp->send(msg);
+
+    delete smtp;
+    delete r_client;
+    delete ssl_client;
+    delete basic_client;
+#endif
+    return success;
+}
+
 // return string of languages and count
 std::string System::languages_string() {
     std::string languages_string = std::to_string(NUM_LANGUAGES) + " languages (";
@@ -237,7 +355,8 @@ bool System::command_message(const char * value, const int8_t id, JsonObject out
     LOG_INFO("Message: %s", EMSESP::webSchedulerService.computed_value.c_str());  // send to log
     Mqtt::queue_publish(F_(message), EMSESP::webSchedulerService.computed_value); // send to MQTT if enabled
     output["api_data"] = EMSESP::webSchedulerService.computed_value;              // send to API
-
+    EMSESP::webSchedulerService.computed_value.clear();
+    EMSESP::webSchedulerService.computed_value.shrink_to_fit();
     return true;
 }
 
@@ -461,7 +580,6 @@ void System::system_restart(const char * partitionname) {
 
     Mqtt::disconnect(); // gracefully disconnect MQTT, needed for QOS1
     EMSuart::stop();    // stop UART so there is no interference
-
 #ifndef EMSESP_STANDALONE
     delay(1000);   // wait 1 second
     ESP.restart(); // ka-boom! - this is the only place where the ESP32 restart is called
@@ -526,29 +644,6 @@ void System::syslog_init() {
 #endif
 }
 
-// start or reconfigure modbus
-void System::modbus_init() {
-    EMSESP::webSettingsService.read([&](WebSettings & settings) {
-        if (settings.modbus_enabled) {
-            if (EMSESP::modbus_ == nullptr) {
-                EMSESP::modbus_ = new Modbus;
-                EMSESP::modbus_->start(1, settings.modbus_port, settings.modbus_max_clients, settings.modbus_timeout * 1000);
-            } else if (settings.modbus_port != modbus_port_ || settings.modbus_max_clients != modbus_max_clients_ || settings.modbus_timeout != modbus_timeout_) {
-                EMSESP::modbus_->stop();
-                EMSESP::modbus_->start(1, settings.modbus_port, settings.modbus_max_clients, settings.modbus_timeout * 1000);
-            }
-        } else if (EMSESP::modbus_ != nullptr) {
-            EMSESP::modbus_->stop();
-            delete EMSESP::modbus_;
-            EMSESP::modbus_ = nullptr;
-        }
-        modbus_enabled_     = settings.modbus_enabled;
-        modbus_port_        = settings.modbus_port;
-        modbus_max_clients_ = settings.modbus_max_clients;
-        modbus_timeout_     = settings.modbus_timeout;
-    });
-}
-
 // read specific major system settings to store locally for faster access
 void System::store_settings(WebSettings & settings) {
     version_ = settings.version;
@@ -586,6 +681,24 @@ void System::store_settings(WebSettings & settings) {
 
     locale_         = settings.locale;
     developer_mode_ = settings.developer_mode;
+    // start services
+    if (settings.modbus_enabled) {
+        if (EMSESP::modbus_ == nullptr) {
+            EMSESP::modbus_ = new Modbus;
+            EMSESP::modbus_->start(1, settings.modbus_port, settings.modbus_max_clients, settings.modbus_timeout * 1000);
+        } else if (settings.modbus_port != modbus_port_ || settings.modbus_max_clients != modbus_max_clients_ || settings.modbus_timeout != modbus_timeout_) {
+            EMSESP::modbus_->stop();
+            EMSESP::modbus_->start(1, settings.modbus_port, settings.modbus_max_clients, settings.modbus_timeout * 1000);
+        }
+    } else if (EMSESP::modbus_ != nullptr) {
+        EMSESP::modbus_->stop();
+        delete EMSESP::modbus_;
+        EMSESP::modbus_ = nullptr;
+    }
+    modbus_enabled_     = settings.modbus_enabled;
+    modbus_port_        = settings.modbus_port;
+    modbus_max_clients_ = settings.modbus_max_clients;
+    modbus_timeout_     = settings.modbus_timeout;
 }
 
 // Starts up core services
@@ -609,20 +722,11 @@ void System::start() {
     appfree_ = esp_ota_get_running_partition()->size / 1024 - appused_;
     refreshHeapMem(); // refresh free heap and max alloc heap
 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-    temp_sensor_config_t temp_sensor = TSENS_CONFIG_DEFAULT();
-    temp_sensor_get_config(&temp_sensor);
-    temp_sensor.dac_offset = TSENS_DAC_DEFAULT; // DEFAULT: range:-10℃ ~  80℃, error < 1℃.
-    temp_sensor_set_config(temp_sensor);
-    temp_sensor_start();
-    temp_sensor_read_celsius(&temperature_);
-#else
     temperature_sensor_config_t temp_sensor_config = TEMPERATURE_SENSOR_CONFIG_DEFAULT(-10, 80);
     temperature_sensor_install(&temp_sensor_config, &temperature_handle_);
     temperature_sensor_enable(temperature_handle_);
     temperature_sensor_get_celsius(temperature_handle_, &temperature_);
 #endif
-#endif
 #endif
 
     EMSESP::esp32React.getNetworkSettingsService()->read([&](NetworkSettings & networkSettings) {
@@ -635,7 +739,6 @@ void System::start() {
     network_init();  // network
     uart_init();     // start UART
     syslog_init();   // start syslog
-    modbus_init();   // start modbus
 }
 
 // button single click
@@ -844,16 +947,9 @@ void System::send_info_mqtt() {
         doc["IPv4 gateway"]    = uuid::printable_to_string(WiFi.gatewayIP());
         doc["IPv4 nameserver"] = uuid::printable_to_string(WiFi.dnsIP());
 
-#if ESP_IDF_VERSION_MAJOR < 5
-        if (WiFi.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.localIPv6().toString() != "::") {
-            doc["IPv6 address"] = uuid::printable_to_string(WiFi.localIPv6());
-        }
-#else
         if (WiFi.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.linkLocalIPv6().toString() != "::") {
             doc["IPv6 address"] = uuid::printable_to_string(WiFi.linkLocalIPv6());
         }
-
-#endif
     }
 #endif
     Mqtt::queue_publish_retain(F_(info), doc.as<JsonObject>()); // topic called "info" and it's Retained
@@ -962,12 +1058,11 @@ void System::network_init() {
         delay(500);
         digitalWrite(eth_power_, HIGH);
     }
-
-#if ESP_IDF_VERSION_MAJOR < 5
-    eth_present_ = ETH.begin(phy_addr, power, mdc, mdio, type, clock_mode);
-#else
     eth_present_ = ETH.begin(type, phy_addr, mdc, mdio, power, clock_mode);
-#endif
+    if (eth_present_) {
+        // Push hostname to the ETH netif immediately after it's created
+        ETH.setHostname(hostname_.c_str());
+    }
 #endif
 }
 
@@ -979,13 +1074,9 @@ void System::system_check() {
 
 #ifndef EMSESP_STANDALONE
 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-        temp_sensor_read_celsius(&temperature_);
-#else
         temperature_sensor_get_celsius(temperature_handle_, &temperature_);
 #endif
 #endif
-#endif
 
 #ifdef EMSESP_PINGTEST
         static uint64_t ping_count = 0;
@@ -1037,6 +1128,7 @@ void System::commands_init() {
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(read), System::command_read, FL_(read_cmd), CommandFlag::ADMIN_ONLY);
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(send), System::command_send, FL_(send_cmd), CommandFlag::ADMIN_ONLY);
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(fetch), System::command_fetch, FL_(fetch_cmd), CommandFlag::ADMIN_ONLY);
+    Command::add(EMSdevice::DeviceType::SYSTEM, F_(sendmail), System::command_sendmail, FL_(sendmail_cmd), CommandFlag::ADMIN_ONLY);
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(restart), System::command_restart, FL_(restart_cmd), CommandFlag::ADMIN_ONLY);
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(format), System::command_format, FL_(format_cmd), CommandFlag::ADMIN_ONLY);
     Command::add(EMSdevice::DeviceType::SYSTEM, F_(txpause), System::command_txpause, FL_(txpause_cmd), CommandFlag::ADMIN_ONLY);
@@ -1285,16 +1377,9 @@ void System::show_system(uuid::console::Shell & shell) {
         shell.printfln(" IPv4 address: %s/%s", uuid::printable_to_string(WiFi.localIP()).c_str(), uuid::printable_to_string(WiFi.subnetMask()).c_str());
         shell.printfln(" IPv4 gateway: %s", uuid::printable_to_string(WiFi.gatewayIP()).c_str());
         shell.printfln(" IPv4 nameserver: %s", uuid::printable_to_string(WiFi.dnsIP()).c_str());
-#if ESP_IDF_VERSION_MAJOR < 5
-        if (WiFi.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.localIPv6().toString() != "::") {
-            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(WiFi.localIPv6()).c_str());
-        }
-#else
         if (WiFi.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.linkLocalIPv6().toString() != "::") {
             shell.printfln(" IPv6 address: %s", uuid::printable_to_string(WiFi.linkLocalIPv6()).c_str());
         }
-#endif
-
         break;
 
     case WL_CONNECT_FAILED:
@@ -1325,15 +1410,9 @@ void System::show_system(uuid::console::Shell & shell) {
         shell.printfln(" IPv4 address: %s/%s", uuid::printable_to_string(ETH.localIP()).c_str(), uuid::printable_to_string(ETH.subnetMask()).c_str());
         shell.printfln(" IPv4 gateway: %s", uuid::printable_to_string(ETH.gatewayIP()).c_str());
         shell.printfln(" IPv4 nameserver: %s", uuid::printable_to_string(ETH.dnsIP()).c_str());
-#if ESP_IDF_VERSION_MAJOR < 5
-        if (ETH.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && ETH.localIPv6().toString() != "::") {
-            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(ETH.localIPv6()).c_str());
-        }
-#else
         if (ETH.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && ETH.linkLocalIPv6().toString() != "::") {
             shell.printfln(" IPv6 address: %s", uuid::printable_to_string(ETH.linkLocalIPv6()).c_str());
         }
-#endif
     }
     shell.println();
 
@@ -1355,10 +1434,10 @@ void System::show_system(uuid::console::Shell & shell) {
     }
 
     shell.println();
-
 #endif
 }
 
+
 // see if there is a restore of an older settings file that needs to be applied
 // note there can be only one file at a time
 bool System::check_restore() {
@@ -1658,8 +1737,8 @@ bool System::check_upgrade() {
     return false; // no reboot required
 }
 
-// map each config filename to its human-readable section key
 #ifndef EMSESP_STANDALONE
+// map each config filename to its human-readable section key
 static const std::pair<const char *, const char *> SECTION_MAP[] = {
     {NETWORK_SETTINGS_FILE, "Network"},
     {AP_SETTINGS_FILE, "AP"},
@@ -1774,27 +1853,16 @@ void System::exportSystemBackup(JsonObject output) {
 
     const char *   nvs_part = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, "nvs1") ? "nvs1" : "nvs"; // nvs1 is on 16MBs
     nvs_iterator_t it       = nullptr;
-#if ESP_IDF_VERSION_MAJOR < 5
-    it = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY);
-    if (it == nullptr) {
-#else
     esp_err_t      err      = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY, &it);
     if (err != ESP_OK) {
-#endif
         LOG_ERROR("Failed to find NVS entry for %s", nvs_part);
         return;
     }
 
     JsonArray entries = node["nvs"].to<JsonArray>();
-#if ESP_IDF_VERSION_MAJOR < 5
-    while (it != nullptr) {
-        nvs_entry_info_t info;
-        nvs_entry_info(it, &info);
-#else
     while (err == ESP_OK) {
         nvs_entry_info_t info;
         nvs_entry_info(it, &info);
-#endif
         JsonObject entry = entries.add<JsonObject>();
         entry["type"]    = info.type;
         entry["key"]     = info.key;
@@ -1829,14 +1897,8 @@ void System::exportSystemBackup(JsonObject output) {
             entry["value"] = EMSESP::nvs_.getString(info.key);
             break;
         }
-
-#if ESP_IDF_VERSION_MAJOR < 5
-        it = nvs_entry_next(it);
-    }
-#else
         err = nvs_entry_next(&it);
     }
-#endif
 
     if (it != nullptr) {
         nvs_release_iterator(it);
@@ -3334,6 +3396,10 @@ void System::set_valid_system_gpios() {
     } else {
         valid_system_gpios_ = string_range_to_vector("0-39", "6-11, 20, 24, 28-31");
     }
+#elif CONFIG_IDF_TARGET_ESP32C6
+    // https://docs.espressif.com/projects/esp-idf/en/v5.5.3/esp32c6/api-reference/peripherals/gpio.html
+    // 24-30 used for flash, 12-13 USB, 16-17 uart0
+    valid_system_gpios_ = string_range_to_vector("0-30", "12-13, 16-17, 24-30");
 #elif defined(EMSESP_STANDALONE)
     valid_system_gpios_ = string_range_to_vector("0-39");
 #endif
@@ -3383,24 +3449,6 @@ void System::remove_gpio(uint8_t pin, bool also_system) {
     }
 }
 
-// remove a gpio that has 0 for disable
-void System::remove_optional_gpio(uint8_t pin) {
-    if (pin) {
-        remove_gpio(pin, false);
-    }
-}
-
-// set unused gpios to default state input high-Z
-void System::reset_unused_gpios() {
-    for (const auto & pin : valid_system_gpios_) {
-        auto it = std::find_if(used_gpios_.begin(), used_gpios_.end(), [pin](const GpioUsage & usage) { return usage.pin == pin; });
-        if (it == used_gpios_.end()) {
-            LOG_DEBUG("reset pin %d", pin);
-            pinMode(pin, INPUT);
-        }
-    }
-}
-
 // return a list of GPIO's available for use
 std::vector<uint8_t> System::available_gpios() {
     std::vector<uint8_t> gpios;

src/core/system.h

@@ -37,11 +37,7 @@
 #include <uuid/log.h>
 #include <PButton.h>
 
-#if ESP_ARDUINO_VERSION_MAJOR < 3
-#define EMSESP_RGB_WRITE neopixelWrite
-#else
 #define EMSESP_RGB_WRITE rgbLedWrite
-#endif
 
 #if CONFIG_IDF_TARGET_ESP32
 // there is no official API available on the original ESP32
@@ -49,12 +45,8 @@ extern "C" {
 uint8_t temprature_sens_read();
 }
 #elif CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-#include "driver/temp_sensor.h"
-#else
 #include "driver/temperature_sensor.h"
 #endif
-#endif
 
 using uuid::console::Shell;
 
@@ -103,6 +95,7 @@ class System {
     static bool command_info(const char * value, const int8_t id, JsonObject output);
     static bool command_response(const char * value, const int8_t id, JsonObject output);
     static bool command_service(const char * cmd, const char * value);
+    static bool command_sendmail(const char * value, const int8_t id);
     static bool command_txpause(const char * value, const int8_t id);
 
     static bool        get_value_info(JsonObject root, const char * cmd);
@@ -122,7 +115,6 @@ class System {
     void show_mem(const char * note);
     void store_settings(class WebSettings & settings);
     void syslog_init();
-    void modbus_init();
     bool check_upgrade();
     bool check_restore();
     void heartbeat_json(JsonObject output);
@@ -377,8 +369,6 @@ class System {
 #endif
 
     static void remove_gpio(uint8_t pin, bool also_system = false); // remove a gpio from both valid (optional) and used lists
-    static void remove_optional_gpio(uint8_t pin);
-    static void reset_unused_gpios();
 
     // Partition info map: partition name -> {version, size, install_date}
     std::map<std::string, PartitionInfo, std::less<>, AllocatorPSRAM<std::pair<const std::string, PartitionInfo>>> partition_info_;
@@ -505,9 +495,7 @@ class System {
     uint32_t appfree_;
 
 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR >= 5
     temperature_sensor_handle_t temperature_handle_ = NULL;
-#endif
 #endif
     float temperature_ = 0;
 };

src/core/telegram.cpp

@@ -43,7 +43,6 @@ uint8_t  EMSbus::ems_mask_          = EMS_MASK_UNSET; // unset so its triggered
 uint8_t  EMSbus::ems_bus_id_        = EMSESP_DEFAULT_EMS_BUS_ID;
 uint8_t  EMSbus::tx_mode_           = EMSESP_DEFAULT_TX_MODE;
 uint8_t  EMSbus::tx_state_          = Telegram::Operation::NONE;
-bool     EMSbus::isEMS2_            = false;
 
 uuid::log::Logger EMSbus::logger_{F_(telegram), uuid::log::Facility::CONSOLE};
 
@@ -207,9 +206,7 @@ void RxService::add(uint8_t * data, uint8_t length) {
         message_data   = data + 6;
         message_length = length - 7;
     }
-    if (type_id > 0x0FF && message_length > 1) { // used for auto tx_mode
+
-        set_ems2();
-    }
     // if we're watching and "raw" print out actual telegram as bytes to the console
     // including the CRC at the end
     if (EMSESP::watch() == EMSESP::Watch::WATCH_RAW) {

src/core/telegram.h

@@ -163,19 +163,12 @@ class EMSbus {
     static constexpr uint8_t EMS_MASK_HT3         = 0x80; // EMS bus type Junkers/HT3
     static constexpr uint8_t EMS_MASK_BUDERUS     = 0xFF; // EMS bus type Buderus
     static constexpr uint8_t EMS_TX_ERROR_LIMIT   = 10;   // % limit of failed Tx read/write attempts before showing a warning
+    static constexpr uint8_t EMS_POLL_MATCH_LIMIT = 3;    // consecutive poll matches needed before declaring bus connected
 
     static bool is_ht3() {
         return (ems_mask_ == EMS_MASK_HT3);
     }
 
-    static bool is_ems2() {
-        return isEMS2_;
-    }
-
-    static void set_ems2() {
-        isEMS2_ = true;;
-    }
-
     static uint8_t ems_mask() {
         return ems_mask_;
     }
@@ -218,7 +211,6 @@ class EMSbus {
         if (!last_bus_activity_) {
             bus_uptime_start_ = timestamp;
         }
-
         last_bus_activity_ = timestamp;
         bus_connected_     = true;
     }
@@ -250,7 +242,6 @@ class EMSbus {
     static uint8_t  ems_bus_id_;        // the bus id, which configurable and stored in settings
     static uint8_t  tx_mode_;           // local copy of the tx mode
     static uint8_t  tx_state_;          // state of the Tx line (NONE or waiting on a TX_READ or TX_WRITE)
-    static bool     isEMS2_;
 };
 
 class RxService : public EMSbus {

src/core/temperaturesensor.cpp

@@ -21,6 +21,12 @@
 #include "temperaturesensor.h"
 #include "emsesp.h"
 
+#ifdef ESP32
+#define YIELD
+#else
+#define YIELD yield()
+#endif
+
 namespace emsesp {
 
 uuid::log::Logger TemperatureSensor::logger_{F_(temperaturesensor), uuid::log::Facility::DAEMON};
@@ -75,6 +81,7 @@ void TemperatureSensor::loop() {
             LOG_DEBUG("Read sensor temperature");
 #endif
             if (bus_.reset() || parasite_) {
+                YIELD;
                 bus_.skip();
                 bus_.write(CMD_CONVERT_TEMP, parasite_ ? 1 : 0);
                 state_     = State::READING;
@@ -253,16 +260,19 @@ int16_t TemperatureSensor::get_temperature_c(const uint8_t addr[]) {
         LOG_ERROR("Bus reset failed before reading scratchpad from %s", Sensor(addr).id());
         return EMS_VALUE_INT16_NOTSET;
     }
+    YIELD;
 
     uint8_t scratchpad[SCRATCHPAD_LEN] = {0};
     bus_.select(addr);
     bus_.write(CMD_READ_SCRATCHPAD);
     bus_.read_bytes(scratchpad, SCRATCHPAD_LEN);
+    YIELD;
 
     if (!bus_.reset()) {
         LOG_ERROR("Bus reset failed after reading scratchpad from %s", Sensor(addr).id());
         return EMS_VALUE_INT16_NOTSET;
     }
+    YIELD;
 
     if (bus_.crc8(scratchpad, SCRATCHPAD_LEN - 1) != scratchpad[SCRATCHPAD_LEN - 1]) {
         LOG_WARNING("Invalid scratchpad CRC: %02X%02X%02X%02X%02X%02X%02X%02X%02X from sensor %s",

src/devices/thermostat.cpp

@@ -173,7 +173,7 @@ Thermostat::Thermostat(uint8_t device_type, uint8_t device_id, uint8_t product_i
         for (uint8_t i = 0; i < monitor_size; i++) {
             register_telegram_type(monitor_typeids[i], "RC300Monitor", false, MAKE_PF_CB(process_RC300Monitor), 33);
             register_telegram_type(set_typeids[i], "RC300Set", false, MAKE_PF_CB(process_RC300Set), 29);
-            register_telegram_type(summer_typeids[i], "RC300Summer", false, MAKE_PF_CB(process_RC300Summer), 14);
+            register_telegram_type(summer_typeids[i], "RC300Summer", false, MAKE_PF_CB(process_RC300Summer), 13);
             register_telegram_type(curve_typeids[i], "RC300Curves", false, MAKE_PF_CB(process_RC300Curve), 9);
             register_telegram_type(summer2_typeids[i], "RC300Summer2", false, MAKE_PF_CB(process_RC300Summer2), 8);
         }
@@ -202,12 +202,11 @@ Thermostat::Thermostat(uint8_t device_type, uint8_t device_id, uint8_t product_i
         if (model == EMSdevice::EMS_DEVICE_FLAG_RC100) {
             register_telegram_type(0x43F, "CRHolidays", true, MAKE_PF_CB(process_RC300Holiday), 6);
         } else {
-            register_telegram_type(0x269, "RC300Holiday", true, MAKE_PF_CB(process_RC300Holiday), 18);
+            register_telegram_type(0x269, "RC300Holiday", true, MAKE_PF_CB(process_RC300Holiday), 6);
         }
         register_telegram_type(0x16E, "Absent", true, MAKE_PF_CB(process_Absent), 1);
         register_telegram_type(0xBF, "ErrorMessage", false, MAKE_PF_CB(process_ErrorMessageBF));
         register_telegram_type(0xC0, "RCErrorMessage", false, MAKE_PF_CB(process_RCErrorMessage2));
-        register_telegram_type(0x470, "RC300Summer2", true, MAKE_PF_CB(process_RC300Summer2), 8);
         EMSESP::send_read_request(0xC0, device_id, 0, 20); // read last errorcode on start (only published on errors)
 
         // JUNKERS/HT3
@@ -1269,14 +1268,8 @@ void Thermostat::process_RC300Summer(std::shared_ptr<const Telegram> telegram) {
 void Thermostat::process_RC300Summer2(std::shared_ptr<const Telegram> telegram) {
     auto hc = heating_circuit(telegram);
     if (hc == nullptr) {
-        // telegram 0x470 see https://github.com/emsesp/EMS-ESP32/issues/2686
-        if (telegram->type_id == 0x470 && telegram->message_length > 2) {
-            hc                 = heating_circuit(1);
-            summer2_typeids[0] = 0x470;
-        } else {
         return;
     }
-    }
     if (hc->statusbyte & 1) {
         has_update(telegram, hc->summersetmode, 0);
         has_update(hc->hpoperatingmode, EMS_VALUE_UINT8_NOTSET);

src/emsesp_version.h

@@ -1 +1 @@
-#define EMSESP_APP_VERSION "3.8.2-dev.22"
+#define EMSESP_APP_VERSION "3.9.0-dev.0"

src/test/test.cpp

@@ -68,7 +68,7 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         uart_telegram({0x08, 0x98, 0x33, 0x00, 0x23, 0x24});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         // Thermostat RCPLUSStatusMessage_HC1(0x01A5)
         uart_telegram({0x98, 0x00, 0xFF, 0x00, 0x01, 0xA5, 0x00, 0xCF, 0x21, 0x2E, 0x00, 0x00, 0x2E, 0x24,
@@ -89,7 +89,7 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
 
         add_device(0x08, 219); // Greenstar HIU/Logamax kompakt WS170
 
-        // [emsesp] boiler(0x08) -W-> Me(0x49), UBAMonitorFastPlus(0xE4), data: 00 01 35 00 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 80 00 (offset 6)
+        // [emsesp] boiler(0x08) -W-> Me(0x0B), UBAMonitorFastPlus(0xE4), data: 00 01 35 00 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 80 00 (offset 6)
         uart_telegram({0x08, 0x00, 0xE4, 0x00, //
                        00,   01,   0x35, 00,   00, 00, 00, 00, 00, 00, 00, 0x80, 00, 00, 00, 00, 00, 00, 00, 0x80, 00});
 
@@ -112,7 +112,7 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         uart_telegram({0x08, 0x90, 0x33, 0x00, 0x23, 0x24});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         // Thermostat 0x2A5 for HC1
         uart_telegram({0x10, 00, 0xFF, 00, 01,   0xA5, 0x80, 00, 01, 0x30, 0x28, 00, 0x30, 0x28, 01, 0x54,
@@ -144,7 +144,7 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         uart_telegram({0x08, 0x90, 0x33, 0x00, 0x23, 0x24});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         // Thermostat 0x2A5 for HC1
         uart_telegram({0x10, 00, 0xFF, 00, 01,   0xA5, 0x80, 00, 01, 0x30, 0x28, 00, 0x30, 0x28, 01, 0x54,
@@ -160,7 +160,7 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         EMSESP::logger().notice("Adding a Gateway...");
 
         // add 0x48 KM200, via a version command
-        rx_telegram({0x48, 0x49, 0x02, 0x00, 0xBD, 0x04, 0x06, 00, 00, 00, 00, 00, 00, 00});
+        rx_telegram({0x48, 0x0B, 0x02, 0x00, 0xBD, 0x04, 0x06, 00, 00, 00, 00, 00, 00, 00});
 
         // Boiler(0x08) -> All(0x00), UBADevices(0x07), data: 09 01 00 00 00 00 00 00 01 00 00 00 00
         // check: make sure 0x48 is not detected again !
@@ -203,14 +203,14 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         add_device(0x08, 123); // Nefit Trendline
 
         // UBAuptime
-        uart_telegram({0x08, 0x49, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
+        uart_telegram({0x08, 0x0B, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
 
         // Boiler -> Me, UBAMonitorFast(0x18), telegram: 08 00 18 00 00 02 5A 73 3D 0A 10 65 40 02 1A 80 00 01 E1 01 76 0E 3D 48 00 C9 44 02 00 (#data=25)
         uart_telegram({0x08, 0x00, 0x18, 0x00, 0x00, 0x02, 0x5A, 0x73, 0x3D, 0x0A, 0x10, 0x65, 0x40, 0x02, 0x1A,
                        0x80, 0x00, 0x01, 0xE1, 0x01, 0x76, 0x0E, 0x3D, 0x48, 0x00, 0xC9, 0x44, 0x02, 0x00});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         return true;
     }
@@ -234,10 +234,10 @@ bool Test::test(const std::string & cmd, int8_t id1, int8_t id2) {
         add_device(0x30, 163); // SM100
 
         // SM100Monitor - type 0x0362 EMS+ - for SM100 and SM200
-        uart_telegram({0xB0, 0x49, 0xFF, 00, 0x02, 0x62, 00, 0x44, 0x02, 0x7A, 0x80, 00, 0x80, 0x00, 0x80, 00,
+        uart_telegram({0xB0, 0x0B, 0xFF, 00, 0x02, 0x62, 00, 0x44, 0x02, 0x7A, 0x80, 00, 0x80, 0x00, 0x80, 00,
                        0x80, 00,   0x80, 00, 0x80, 00,   00, 0x7C, 0x80, 00,   0x80, 00, 0x80, 00,   0x80});
 
-        uart_telegram({0xB0, 0x49, 0xFF, 0x00, 0x02, 0x62, 0x01, 0x44, 0x03, 0x30, 0x80, 00, 0x80, 00, 0x80, 00,
+        uart_telegram({0xB0, 0x0B, 0xFF, 0x00, 0x02, 0x62, 0x01, 0x44, 0x03, 0x30, 0x80, 00, 0x80, 00, 0x80, 00,
                        0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00, 0x80, 00, 0x80, 0x33});
 
         uart_telegram({0xB0, 00, 0xFF, 0x18, 02, 0x62, 0x80, 00, 0xB8});
@@ -580,7 +580,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         add_device(0x09, 206); // Nefit Excellent HR30 Controller
 
         // UBAuptime
-        uart_telegram({0x08, 0x49, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
+        uart_telegram({0x08, 0x0B, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
         ok = true;
     }
 
@@ -588,10 +588,10 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         EMSESP::logger().notice("Testing 620...");
 
         // Version Controller
-        uart_telegram({0x09, 0x49, 0x02, 0x00, 0x5F, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00});
+        uart_telegram({0x09, 0x0B, 0x02, 0x00, 0x5F, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00});
 
         // Version Boiler
-        uart_telegram({0x08, 0x49, 0x02, 0x00, 0x5F, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00});
+        uart_telegram({0x08, 0x0B, 0x02, 0x00, 0x5F, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00});
         ok = true;
     }
 
@@ -607,7 +607,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
 
         // simulate getting version information back from an unknown device
         // note there is no brand (byte 9)
-        rx_telegram({0x09, 0x49, 0x02, 0x00, 0x59, 0x09, 0x0a});
+        rx_telegram({0x09, 0x0B, 0x02, 0x00, 0x59, 0x09, 0x0a});
 
         shell.invoke_command("show devices");
         shell.invoke_command("call system report");
@@ -618,7 +618,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         shell.printfln("Testing unknown2...");
 
         // simulate getting version information back from an unknown device
-        rx_telegram({0x09, 0x49, 0x02, 0x00, 0x5A, 0x01, 0x02}); // productID is 90 which doesn't exist
+        rx_telegram({0x09, 0x0B, 0x02, 0x00, 0x5A, 0x01, 0x02}); // productID is 90 which doesn't exist
         ok = true;
     }
 
@@ -815,9 +815,9 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         // test("thermostat");
 
         // 0xC2
-        //  [emsesp] Boiler(0x08) -> Me(0x49), UBAErrorMessage3(0xC2), data: 08 AC 00 10 31 48 30 31 15 80 95 0B 0E 10 38 00 7F FF FF FF 08 AC 00 10 09 41 30
+        //  [emsesp] Boiler(0x08) -> Me(0x0B), UBAErrorMessage3(0xC2), data: 08 AC 00 10 31 48 30 31 15 80 95 0B 0E 10 38 00 7F FF FF FF 08 AC 00 10 09 41 30
         uart_telegram(
-            {0x08, 0x49, 0xC2, 0, 0x08, 0xAC, 00, 0x10, 0x31, 0x48, 0x30, 0x31, 0x15, 0x80, 0x95, 0x0B, 0x0E, 0x10, 0x38, 00, 0x7F, 0xFF, 0xFF, 0xFF});
+            {0x08, 0x0B, 0xC2, 0, 0x08, 0xAC, 00, 0x10, 0x31, 0x48, 0x30, 0x31, 0x15, 0x80, 0x95, 0x0B, 0x0E, 0x10, 0x38, 00, 0x7F, 0xFF, 0xFF, 0xFF});
 
         // shell.invoke_command("show values");
 
@@ -1042,7 +1042,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         // Boiler -> Me, UBAParameterWW(0x33)
         // wwseltemp = goes from 52 degrees (0x34) to void (0xFF)
         // it should delete the HA config topic homeassistant/sensor/ems-esp/boiler_wwseltemp/config
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0xFF, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0xFF, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         shell.invoke_command("call boiler wwseltemp");
         shell.invoke_command("call system publish");
@@ -1795,7 +1795,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         add_device(0x18, 202); // Bosch TC100 - https://github.com/emsesp/EMS-ESP/issues/474
 
         // 0x0A
-        uart_telegram({0x98, 0x49, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        uart_telegram({0x98, 0x0B, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00});
         ok = true;
     }
@@ -1829,10 +1829,10 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
 
         // SM100Monitor - type 0x0362 EMS+ - for SM100 and SM200
         // B0 0B FF 00 02 62 00 44 02 7A 80 00 80 00 80 00 80 00 80 00 80 00 00 7C 80 00 80 00 80 00 80
-        rx_telegram({0xB0, 0x49, 0xFF, 00, 0x02, 0x62, 00, 0x44, 0x02, 0x7A, 0x80, 00, 0x80, 0x00, 0x80, 00,
+        rx_telegram({0xB0, 0x0B, 0xFF, 00, 0x02, 0x62, 00, 0x44, 0x02, 0x7A, 0x80, 00, 0x80, 0x00, 0x80, 00,
                      0x80, 00,   0x80, 00, 0x80, 00,   00, 0x7C, 0x80, 00,   0x80, 00, 0x80, 00,   0x80});
 
-        rx_telegram({0xB0, 0x49, 0xFF, 0x00, 0x02, 0x62, 0x01, 0x44, 0x03, 0x30, 0x80, 00, 0x80, 00, 0x80, 00,
+        rx_telegram({0xB0, 0x0B, 0xFF, 0x00, 0x02, 0x62, 0x01, 0x44, 0x03, 0x30, 0x80, 00, 0x80, 00, 0x80, 00,
                      0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00,   0x80, 00, 0x80, 00, 0x80, 0x33});
 
         rx_telegram({0xB0, 00, 0xFF, 0x18, 02, 0x62, 0x80, 00, 0xB8});
@@ -1936,7 +1936,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
     if (command == "rx2") {
         shell.printfln("Testing Rx2...");
         for (uint8_t i = 0; i < 30; i++) {
-            uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+            uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
             ok = true;
         }
     }
@@ -1953,23 +1953,23 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         uart_telegram({0x08, 0x97, 0x33, 0x00, 0x23, 0x24});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         // Thermostat -> Me, RC20StatusMessage(0x91), telegram: 17 0B 91 05 44 45 46 47 (#data=4)
-        uart_telegram({0x17, 0x49, 0x91, 0x05, 0x44, 0x45, 0x46, 0x47});
+        uart_telegram({0x17, 0x0B, 0x91, 0x05, 0x44, 0x45, 0x46, 0x47});
 
         // bad CRC - corrupt telegram - CRC should be 0x8E
-        uint8_t t5[] = {0x17, 0x49, 0x91, 0x05, 0x44, 0x45, 0x46, 0x47, 0x99};
+        uint8_t t5[] = {0x17, 0x0B, 0x91, 0x05, 0x44, 0x45, 0x46, 0x47, 0x99};
         EMSESP::rxservice_.add(t5, sizeof(t5));
 
         // simulating a Tx record
-        uart_telegram({0x49, 0x88, 0x07, 0x00, 0x20});
+        uart_telegram({0x0B, 0x88, 0x07, 0x00, 0x20});
 
         // Version Boiler
-        uart_telegram({0x08, 0x49, 0x02, 0x00, 0x7B, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04});
+        uart_telegram({0x08, 0x0B, 0x02, 0x00, 0x7B, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04});
 
         // Version Thermostat, device_id 0x11
-        uart_telegram({0x11, 0x49, 0x02, 0x00, 0x4D, 0x03, 0x03});
+        uart_telegram({0x11, 0x0B, 0x02, 0x00, 0x4D, 0x03, 0x03});
 
         // Thermostat -> all, telegram: 10 00 FF 00 01 A5 00 D7 21 00 00 00 00 30 01 84 01 01 03 01 84 01 F1 00 00 11 01 00 08 63 00
         // 0x1A5 test ems+
@@ -1987,7 +1987,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         uart_telegram({0x17, 0x08, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00});
 
         // Thermostat -> Me, RC20Set(0xA8), telegram: 17 0B A8 00 01 00 FF F6 01 06 00 01 0D 01 00 FF FF 01 02 02 02 00 00 05 1F 05 1F 02 0E 00 FF (#data=27)
-        uart_telegram({0x17, 0x49, 0xA8, 0x00, 0x01, 0x00, 0xFF, 0xF6, 0x01, 0x06, 0x00, 0x01, 0x0D, 0x01, 0x00, 0xFF,
+        uart_telegram({0x17, 0x0B, 0xA8, 0x00, 0x01, 0x00, 0xFF, 0xF6, 0x01, 0x06, 0x00, 0x01, 0x0D, 0x01, 0x00, 0xFF,
                        0xFF, 0x01, 0x02, 0x02, 0x02, 0x00, 0x00, 0x05, 0x1F, 0x05, 0x1F, 0x02, 0x0E, 0x00, 0xFF});
 
         //  Boiler(0x08) -> All(0x00), UBAMonitorWW(0x34), data: 36 01 A5 80 00 21 00 00 01 00 01 3E 8D 03 77 91 00 80 00
@@ -2021,7 +2021,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         EMSESP::send_write_request(0x91, 0x17, 0x00, t18, sizeof(t18), 0x00);
 
         // TX - send EMS+
-        const uint8_t t13[] = {0x90, 0x49, 0xFF, 00, 01,   0xBA, 00,   0x2E, 0x2A, 0x26, 0x1E, 0x03,
+        const uint8_t t13[] = {0x90, 0x0B, 0xFF, 00, 01,   0xBA, 00,   0x2E, 0x2A, 0x26, 0x1E, 0x03,
                                00,   0xFF, 0xFF, 05, 0x2A, 01,   0xE1, 0x20, 0x01, 0x0F, 05,   0x2A};
         EMSESP::txservice_.add(Telegram::Operation::TX_RAW, t13, sizeof(t13), 0);
 
@@ -2145,7 +2145,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
         uart_telegram({0x08, 0x98, 0x33, 0x00, 0x23, 0x24});
 
         // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-        uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+        uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
         // add a thermostat
         add_device(0x18, 157); // Bosch CR100
@@ -2487,7 +2487,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
     if (command == "rx3") {
         shell.printfln("Testing rx3...");
 
-        uart_telegram({0x21, 0x49, 0xFF, 0x00});
+        uart_telegram({0x21, 0x0B, 0xFF, 0x00});
         ok = true;
     }
 
@@ -2495,7 +2495,7 @@ void Test::run_test(uuid::console::Shell & shell, const std::string & cmd, const
     if (command == "tx2") {
         shell.printfln("Testing tx2...");
 
-        uint8_t t[] = {0x49, 0x88, 0x18, 0x00, 0x20, 0xD4}; // including CRC
+        uint8_t t[] = {0x0B, 0x88, 0x18, 0x00, 0x20, 0xD4}; // including CRC
         EMSuart::transmit(t, sizeof(t));
         ok = true;
     }

src/uart/emsuart_esp32.cpp

@@ -39,7 +39,7 @@ uint32_t             inverse_mask = 0;
 // receive task, wait for break and call incoming_telegram
 void EMSuart::uart_event_task(void * pvParameters) {
     uart_event_t event;
-    uint8_t      telegram[UART_FIFO_LEN + 1]; // same size as in driver_install
+    uint8_t      telegram[UART_HW_FIFO_LEN(EMSUART_NUM) + 1]; // same size as in driver_install
     uint8_t      length = 0;
 
     while (1) {
@@ -66,18 +66,23 @@ void EMSuart::uart_event_task(void * pvParameters) {
 // initialize UART driver
 void EMSuart::start(const uint8_t tx_mode, const uint8_t rx_gpio, const uint8_t tx_gpio) {
     if (tx_mode_ == EMS_TXMODE_INIT) {
+#if CONFIG_IDF_TARGET_ESP32C6
+        uart_config_t uart_config = {.baud_rate           = EMSUART_BAUD,
+                                     .data_bits           = UART_DATA_8_BITS,
+                                     .parity              = UART_PARITY_DISABLE,
+                                     .stop_bits           = UART_STOP_BITS_1,
+                                     .flow_ctrl           = UART_HW_FLOWCTRL_DISABLE,
+                                     .rx_flow_ctrl_thresh = 0};
+#else
         uart_config_t uart_config = {.baud_rate           = EMSUART_BAUD,
                                      .data_bits           = UART_DATA_8_BITS,
                                      .parity              = UART_PARITY_DISABLE,
                                      .stop_bits           = UART_STOP_BITS_1,
                                      .flow_ctrl           = UART_HW_FLOWCTRL_DISABLE,
                                      .rx_flow_ctrl_thresh = 0,
-                                     .source_clk          = UART_SCLK_APB
+                                     .source_clk          = UART_SCLK_APB,
-#if ESP_ARDUINO_VERSION_MAJOR >= 3
+                                     .flags               = {0}};
-                                     ,
-                                     .flags = {0}
 #endif
-        };
 #if defined(EMSUART_RX_INVERT)
         inverse_mask |= UART_SIGNAL_RXD_INV;
 #endif
@@ -87,7 +92,12 @@ void EMSuart::start(const uint8_t tx_mode, const uint8_t rx_gpio, const uint8_t
         uart_param_config(EMSUART_NUM, &uart_config);
         uart_set_pin(EMSUART_NUM, tx_gpio, rx_gpio, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
         uart_set_line_inverse(EMSUART_NUM, inverse_mask);
-        uart_driver_install(EMSUART_NUM, UART_FIFO_LEN + 1, 0, UART_FIFO_LEN + 3, &uart_queue, 0); // buffer must be > fifo, queue can hold data+break+overflow message
+        uart_driver_install(EMSUART_NUM,
+                            UART_HW_FIFO_LEN(EMSUART_NUM) + 1,
+                            0,
+                            UART_HW_FIFO_LEN(EMSUART_NUM) + 3,
+                            &uart_queue,
+                            0); // buffer must be > fifo, queue can hold data+break+overflow message
         uart_set_rx_full_threshold(EMSUART_NUM, 1);
         uart_set_rx_timeout(EMSUART_NUM, 0); // disable
 
@@ -149,10 +159,8 @@ uint8_t EMSuart::transmit(const uint8_t * buf, const uint8_t len) {
         return EMS_TX_STATUS_OK;
     }
 
-   auto tx_mode = tx_mode_ != EMS_TXMODE_AUTO ? tx_mode_ : EMSbus::is_ht3() ? EMS_TXMODE_HT3 : EMSbus::is_ems2() ? EMS_TXMODE_EMSPLUS : EMS_TXMODE_EMS;
-
     // TXMODE is EMS+ with long delay
-    if (tx_mode == EMS_TXMODE_EMSPLUS) {
+    if (tx_mode_ == EMS_TXMODE_EMSPLUS) {
         for (uint8_t i = 0; i < len; i++) {
             uart_write_bytes(EMSUART_NUM, &buf[i], 1);
             delayMicroseconds(EMSUART_TX_WAIT_PLUS);
@@ -162,7 +170,7 @@ uint8_t EMSuart::transmit(const uint8_t * buf, const uint8_t len) {
     }
 
     // TXMODE is HT3 with 7 bittimes delay
-    if (tx_mode == EMS_TXMODE_HT3) {
+    if (tx_mode_ == EMS_TXMODE_HT3) {
         for (uint8_t i = 0; i < len; i++) {
             uart_write_bytes(EMSUART_NUM, &buf[i], 1);
             delayMicroseconds(EMSUART_TX_WAIT_HT3);

src/uart/emsuart_esp32.h

@@ -42,11 +42,10 @@
 
 #define EMS_TXMODE_INIT 0xFF
 #define EMS_TXMODE_OFF 0
-#define EMS_TXMODE_EMS 1
+#define EMS_TXMODE_DEFAULT 1
 #define EMS_TXMODE_EMSPLUS 2
 #define EMS_TXMODE_HT3 3
 #define EMS_TXMODE_HW 4
-#define EMS_TXMODE_AUTO 5
 
 // LEGACY
 #define EMSUART_TX_BIT_TIME 104 // bit time @9600 baud

src/web/WebCustomEntityService.cpp

@@ -166,9 +166,7 @@ StateUpdateResult WebCustomEntity::update(JsonObject root, WebCustomEntity & web
 bool WebCustomEntityService::command_setvalue(const char * value, const int8_t id, const char * name) {
     // don't write if there is no value, to prevent setting an empty value by mistake when parsing attributes
     if (!strlen(value)) {
-#if defined(EMSESP_DEBUG)
         EMSESP::logger().debug("can't set empty value!");
-#endif
         return false;
     }
 
@@ -688,7 +686,7 @@ void WebCustomEntityService::fetch() {
             uint8_t stop       = (entity.offset + len[entity.value_type]) % fetchblock;
             bool    is_fetched = start < fetchblock && stop < fetchblock; // make sure the complete value is a a fetched block
             for (const auto & emsdevice : EMSESP::emsdevices) {
-                if (emsdevice->is_device_id(entity.device_id) && emsdevice->is_fetch(entity.type_id, entity.offset + len[entity.value_type])
+                if (emsdevice->is_device_id(entity.device_id) && emsdevice->is_fetch(entity.type_id)
                     && (is_fetched || entity.value_type == DeviceValueType::STRING)) {
                     needFetch = false;
                     break;

src/web/WebCustomizationService.cpp

@@ -54,10 +54,10 @@ void WebCustomization::read(WebCustomization & customizations, JsonObject root)
     JsonArray sensorsJson = root["ts"].to<JsonArray>();
     for (const SensorCustomization & sensor : customizations.sensorCustomizations) {
         JsonObject sensorJson   = sensorsJson.add<JsonObject>();
-        sensorJson["id"]        = (const char *)sensor.id;   // ID of chip
+        sensorJson["id"]        = (const char *)sensor.id;   // ID of dallas temperature sensor chip
         sensorJson["name"]      = (const char *)sensor.name; // n
         sensorJson["offset"]    = sensor.offset;             // o
-        sensorJson["is_system"] = sensor.is_system;          // s for core_voltage, supply_voltage
+        sensorJson["is_system"] = sensor.is_system;          // s for gateway_temperature
     }
 
     // Analog Sensor customization

src/web/WebSchedulerService.cpp

@@ -352,7 +352,6 @@ bool WebSchedulerService::command(const char * name, const std::string & command
     // parse json
     JsonDocument doc;
     if (deserializeJson(doc, cmd) == DeserializationError::Ok) {
-        HTTPClient  * http = new HTTPClient;
         std::string url = doc["url"] | "";
         // for a GET with parameters replace commands with values
         // don't search the complete url, it may contain a devicename in path
@@ -363,40 +362,139 @@ bool WebSchedulerService::command(const char * name, const std::string & command
             commands(s, false);
             url.replace(q + 1, l, s);
         }
-        if (http->begin(url.c_str())) {
+        std::string value  = doc["value"] | data;   // extract value if its in the command, or take the data
-            // add any given headers
-            for (JsonPair p : doc["header"].as<JsonObject>()) {
-                http->addHeader(p.key().c_str(), p.value().as<String>().c_str());
-            }
-            std::string value  = doc["value"] | data.c_str(); // extract value if its in the command, or take the data
         std::string method = doc["method"] | "GET"; // default GET
-
         commands(value, false);
-            // if there is data, force a POST
+        if (value.length()) {
+            method = "POST";
+        }
+        std::string result;
         int         httpResult = 0;
-            if (value.length() || method == "post") { // we have all lowercase
+#ifndef NO_TLS_SUPPORT
-                if (value.find_first_of('{') != std::string::npos) {
+        if (Helpers::toLower(url.c_str()).starts_with("https://")) {
+            WiFiClient *    basic_client = new WiFiClient;
+            ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+            ssl_client->setInsecure(); // with root CA we should set here: ssl_client->setCACert(rootCACert);
+            ssl_client->setBufferSizes(1024, 1024);
+            ssl_client->setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+            url.replace(0, 8, "");
+            std::string host  = url;
+            auto        index = url.find_first_of('/');
+            if (index != std::string::npos) {
+                host = url.substr(0, index);
+                url.replace(0, index, "");
+            }
+            // EMSESP::logger().debug("Host: %s, URL: %s", host.c_str(), url.c_str());
+            ssl_client->setClient(basic_client);
+            if (ssl_client->connect(host.c_str(), 443)) {
+                if (value.length() || Helpers::toLower(method) == "post") {
+                    // EMSESP::logger().debug("POST %s HTTP/1.1", url.c_str());
+                    ssl_client->print("POST ");
+                    ssl_client->print(url.c_str());
+                    ssl_client->println(" HTTP/1.1");
+                    ssl_client->print("Host: ");
+                    ssl_client->println(host.c_str());
+                    bool content_set = false;
+                    for (JsonPair p : doc["header"].as<JsonObject>()) {
+                        content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
+                        ssl_client->print(p.key().c_str());
+                        ssl_client->print(": ");
+                        ssl_client->println(p.value().as<std::string>().c_str());
+                    }
+                    if (!content_set) {
+                        ssl_client->print("Content-Type: ");
+                        if (value.starts_with('{')) {
+                            ssl_client->println(asyncsrv::T_application_json);
+                        } else {
+                            ssl_client->println(asyncsrv::T_text_plain);
+                        }
+                    }
+                    ssl_client->print("Content-Length: ");
+                    ssl_client->println(value.length());
+                    ssl_client->println("Connection: close");
+                    ssl_client->print("\r\n");
+                    ssl_client->print(value.c_str());
+                } else {
+                    // EMSESP::logger().debug("GET %s HTTP/1.1", url.c_str());
+                    ssl_client->print("GET ");
+                    ssl_client->print(url.c_str());
+                    ssl_client->println(" HTTP/1.1");
+                    ssl_client->print("Host: ");
+                    ssl_client->println(host.c_str());
+                    for (JsonPair p : doc["header"].as<JsonObject>()) {
+                        ssl_client->print(p.key().c_str());
+                        ssl_client->print(": ");
+                        ssl_client->println(p.value().as<std::string>().c_str());
+                    }
+                    ssl_client->println("Connection: close");
+                }
+                auto ms = millis();
+                while (ssl_client->connected() && !ssl_client->available() && millis() - ms < 3000) {
+                    delay(0);
+                }
+                while (ssl_client->available()) {
+                    result += (char)ssl_client->read();
+                }
+                ssl_client->stop();
+                // EMSESP::logger().debug("HTTPS response: %s", result.c_str());
+                index = result.find_first_of(' ');
+                if (index != std::string::npos) {
+                    httpResult = stoi(result.substr(index + 1, 3));
+                    // EMSESP::logger().debug("HTTPS code: %i", httpResult);
+                }
+                index = result.find("\r\n\r\n");
+                if (index != std::string::npos) {
+                    result.replace(0, index + 4, "");
+                    // EMSESP::logger().debug("HTTPS response: %s", result.c_str());
+                }
+            } else {
+                EMSESP::logger().warning("HTTPS connection failed");
+            }
+            delete ssl_client;
+            delete basic_client;
+            // check HTTP return code
+            if (httpResult != 200) {
+                EMSESP::logger().warning("Schedule '%s': URL command failed with http code %d", name, httpResult);
+                return false;
+            }
+            return true;
+        } else
+#endif
+            if (Helpers::toLower(url.c_str()).starts_with("http://")) {
+            HTTPClient * http = new HTTPClient;
+            if (http->begin(url.c_str())) {
+                bool content_set = false;
+                for (JsonPair p : doc["header"].as<JsonObject>()) {
+                    http->addHeader(p.key().c_str(), p.value().as<std::string>().c_str());
+                    content_set |= p.key() == "content-type";
+                }
+                // if there is data, force a POST
+                if (Helpers::toLower(method) == "post") { // we have all lowercase
+                    if (!content_set) {
+                        // http->addHeader("Content-Type", value.find_first_of('{') != std::string::npos ? "application/json" : "text/plain");
+                        if (value.starts_with('{')) {
                             http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_application_json, false); // auto-set to JSON
+                        } else {
+                            http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_text_plain, false); // auto-set to JSON
+                        }
                     }
                     httpResult = http->POST(value.c_str());
                 } else {
                     httpResult = http->GET(); // normal GET
+                    if (httpResult > 0) {
+                        result = http->getString().c_str();
+                    }
+                }
             }
-
             http->end();
             delete http;
-
             // check HTTP return code
             if (httpResult != 200) {
-                char error[100];
+                EMSESP::logger().warning("Schedule '%s': URL command failed with http code %d", name, httpResult);
-                snprintf(error, sizeof(error), "Schedule %s: URL command failed with http code %d", name, httpResult);
-                EMSESP::logger().warning(error);
                 return false;
             }
 #if defined(EMSESP_DEBUG)
-            char msg[100];
+            EMSESP::logger().debug("Schedule %s: URL '%s' command successful with http code %d", name, url.c_str(), httpResult);
-            snprintf(msg, sizeof(msg), "Schedule %s: URL command successful with http code %d", name, httpResult);
-            EMSESP::logger().debug(msg);
 #endif
             return true;
         }
@@ -465,9 +563,7 @@ void WebSchedulerService::condition() {
             } else if (match.length() == 1 && match[0] == '0' && scheduleItem.retry_cnt == 1) {
                 scheduleItem.retry_cnt = 0xFF;
             } else if (match.length() != 1) { // the match is not boolean
-#if defined(EMSESP_DEBUG)
                 EMSESP::logger().debug("condition result: %s", match.c_str());
-#endif
             }
         }
     }

src/web/WebSettingsService.cpp

@@ -20,7 +20,7 @@
 
 namespace emsesp {
 
-uint16_t WebSettings::flags_ = 0;
+uint8_t WebSettings::flags_ = 0;
 
 WebSettingsService::WebSettingsService(AsyncWebServer * server, FS * fs, SecurityManager * securityManager)
     : _httpEndpoint(WebSettings::read, WebSettings::update, this, server, EMSESP_SETTINGS_SERVICE_PATH, securityManager)
@@ -83,6 +83,20 @@ void WebSettings::read(WebSettings & settings, JsonObject root) {
     root["modbus_max_clients"]    = settings.modbus_max_clients;
     root["modbus_timeout"]        = settings.modbus_timeout;
     root["developer_mode"]        = settings.developer_mode;
+#ifndef NO_TLS_SUPPORT
+    root["email_enabled"] = settings.email_enabled;
+#else
+    root["email_enabled"] = false;
+#endif
+    root["email_ssl"]      = settings.email_ssl;
+    root["email_starttls"] = settings.email_starttls;
+    root["email_server"]   = settings.email_server;
+    root["email_port"]     = settings.email_port;
+    root["email_login"]    = settings.email_login;
+    root["email_pass"]     = settings.email_pass;
+    root["email_sender"]   = settings.email_sender;
+    root["email_recp"]     = settings.email_recp;
+    root["email_subject"]  = settings.email_subject;
 }
 
 // call on initialization and also when settings are updated/saved via web or console
@@ -114,11 +128,11 @@ StateUpdateResult WebSettings::update(JsonObject root, WebSettings & settings) {
     reset_flags();
 
     // before loading new board profile free old gpios from used list to allow remapping
-    EMSESP::system_.remove_optional_gpio(original_settings.led_gpio);
+    EMSESP::system_.remove_gpio(original_settings.led_gpio);
-    EMSESP::system_.remove_optional_gpio(original_settings.dallas_gpio);
+    EMSESP::system_.remove_gpio(original_settings.dallas_gpio);
     EMSESP::system_.remove_gpio(original_settings.pbutton_gpio);
-    EMSESP::system_.remove_optional_gpio(original_settings.rx_gpio);
+    EMSESP::system_.remove_gpio(original_settings.rx_gpio);
-    EMSESP::system_.remove_optional_gpio(original_settings.tx_gpio);
+    EMSESP::system_.remove_gpio(original_settings.tx_gpio);
 
     // see if the user has changed the board profile
     // this will set: led_gpio, dallas_gpio, rx_gpio, tx_gpio, pbutton_gpio, phy_type, eth_power, eth_phy_addr, eth_clock_mode, led_type
@@ -243,13 +257,9 @@ StateUpdateResult WebSettings::update(JsonObject root, WebSettings & settings) {
 
     // Modbus settings
     settings.modbus_enabled     = root["modbus_enabled"] | EMSESP_DEFAULT_MODBUS_ENABLED;
-    check_flag(original_settings.modbus_enabled, settings.modbus_enabled, ChangeFlags::MODBUS);
     settings.modbus_port        = root["modbus_port"] | EMSESP_DEFAULT_MODBUS_PORT;
-    check_flag(original_settings.modbus_port, settings.modbus_port, ChangeFlags::MODBUS);
     settings.modbus_max_clients = root["modbus_max_clients"] | EMSESP_DEFAULT_MODBUS_MAX_CLIENTS;
-    check_flag(original_settings.modbus_max_clients, settings.modbus_max_clients, ChangeFlags::MODBUS);
     settings.modbus_timeout     = root["modbus_timeout"] | EMSESP_DEFAULT_MODBUS_TIMEOUT;
-    check_flag(original_settings.modbus_timeout, settings.modbus_timeout, ChangeFlags::MODBUS);
 
     //
     // these may need mqtt restart to rebuild HA discovery topics
@@ -300,6 +310,20 @@ StateUpdateResult WebSettings::update(JsonObject root, WebSettings & settings) {
     settings.weblog_level   = root["weblog_level"] | EMSESP_DEFAULT_WEBLOG_LEVEL;
     settings.weblog_compact = root["weblog_compact"] | EMSESP_DEFAULT_WEBLOG_COMPACT;
 
+    settings.email_enabled  = root["email_enabled"] | FACTORY_EMAIL_ENABLE;
+    settings.email_ssl      = root["email_ssl"] | FACTORY_EMAIL_SSL;
+    settings.email_starttls = root["email_starttls"] | FACTORY_EMAIL_STARTTLS;
+    settings.email_server   = root["email_server"] | FACTORY_EMAIL_SERVER;
+    settings.email_port     = root["email_port"] | FACTORY_EMAIL_PORT;
+    settings.email_login    = root["email_login"] | FACTORY_EMAIL_LOGIN;
+    settings.email_pass     = root["email_pass"] | FACTORY_EMAIL_PASSWORD;
+    settings.email_sender   = root["email_sender"] | FACTORY_EMAIL_FROM;
+    settings.email_recp     = root["email_recp"] | FACTORY_EMAIL_TO;
+    settings.email_subject  = root["email_subject"] | FACTORY_EMAIL_SUBJECT;
+
+    if (settings.email_ssl && settings.email_starttls) {
+        settings.email_ssl = false;
+    }
     // if no psram limit weblog buffer to 25 messages
     if (EMSESP::system_.PSram() > 0) {
         settings.weblog_buffer = root["weblog_buffer"] | EMSESP_DEFAULT_WEBLOG_BUFFER;
@@ -372,11 +396,7 @@ void WebSettingsService::onUpdate() {
         Mqtt::reset_mqtt(); // reload MQTT, init HA etc
     }
 
-    if (WebSettings::has_flags(WebSettings::ChangeFlags::MODBUS)) {
-        EMSESP::system_.modbus_init();
-    }
     WebSettings::reset_flags();
-    EMSESP::system_.reset_unused_gpios();
 }
 
 void WebSettingsService::begin() {
@@ -462,23 +482,14 @@ void WebSettings::set_board_profile(WebSettings & settings) {
 #if CONFIG_IDF_TARGET_ESP32
         // check for no PSRAM, could be a E32 or S32?
         if (!ESP.getPsramSize()) {
-#if ESP_ARDUINO_VERSION_MAJOR < 3
-            if (ETH.begin(1, 16, 23, 18, ETH_PHY_LAN8720, ETH_CLOCK_GPIO0_IN)) {
-#else
             if (ETH.begin(ETH_PHY_LAN8720, 1, 23, 18, 16, ETH_CLOCK_GPIO0_IN)) {
-#endif
                 settings.board_profile = "E32"; // Ethernet without PSRAM
             } else {
                 settings.board_profile = "S32"; // ESP32 standard WiFi without PSRAM
             }
         } else {
             // check for boards with PSRAM, could be a E32V2 otherwise default back to the S32
-#if ESP_ARDUINO_VERSION_MAJOR < 3
-            if (ETH.begin(0, 15, 23, 18, ETH_PHY_LAN8720, ETH_CLOCK_GPIO0_OUT)) {
-#else
             if (ETH.begin(ETH_PHY_LAN8720, 0, 23, 18, 15, ETH_CLOCK_GPIO0_OUT)) {
-#endif
-
                 if (analogReadMilliVolts(39) > 700) {   // core voltage > 2.6V
                     settings.board_profile = "E32V2_2"; // Ethernet, PSRAM, internal sensors
                 } else {
@@ -527,7 +538,7 @@ void WebSettings::set_board_profile(WebSettings & settings) {
 }
 
 // returns true if the value was changed
-bool WebSettings::check_flag(int prev_v, int new_v, uint16_t flag) {
+bool WebSettings::check_flag(int prev_v, int new_v, uint8_t flag) {
     if (prev_v != new_v) {
         add_flags(flag);
 #if defined(EMSESP_DEBUG)
@@ -538,11 +549,11 @@ bool WebSettings::check_flag(int prev_v, int new_v, uint16_t flag) {
     return false;
 }
 
-void WebSettings::add_flags(uint16_t flags) {
+void WebSettings::add_flags(uint8_t flags) {
     flags_ |= flags;
 }
 
-bool WebSettings::has_flags(uint16_t flags) {
+bool WebSettings::has_flags(uint8_t flags) {
     return (flags_ & flags) == flags;
 }
 
@@ -550,7 +561,7 @@ void WebSettings::reset_flags() {
     flags_ = ChangeFlags::NONE;
 }
 
-uint16_t WebSettings::get_flags() {
+uint8_t WebSettings::get_flags() {
     return flags_;
 }
 

src/web/WebSettingsService.h

@@ -26,6 +26,36 @@
 #define EMSESP_SETTINGS_SERVICE_PATH "/rest/settings"
 #define EMSESP_BOARD_PROFILE_SERVICE_PATH "/rest/boardProfile"
 
+#ifndef FACTORY_EMAIL_ENABLE
+#define FACTORY_EMAIL_ENABLE false
+#endif
+#ifndef FACTORY_EMAIL_SSL
+#define FACTORY_EMAIL_SSL false
+#endif
+#ifndef FACTORY_EMAIL_STARTTLS
+#define FACTORY_EMAIL_STARTTLS true
+#endif
+#ifndef FACTORY_EMAIL_PORT
+#define FACTORY_EMAIL_PORT 587
+#endif
+#ifndef FACTORY_EMAIL_SERVER
+#define FACTORY_EMAIL_SERVER "smtp.example.net"
+#endif
+#ifndef FACTORY_EMAIL_LOGIN
+#define FACTORY_EMAIL_LOGIN ""
+#endif
+#ifndef FACTORY_EMAIL_PASSWORD
+#define FACTORY_EMAIL_PASSWORD ""
+#endif
+#ifndef FACTORY_EMAIL_FROM
+#define FACTORY_EMAIL_FROM "ems-esp@example.net"
+#endif
+#ifndef FACTORY_EMAIL_TO
+#define FACTORY_EMAIL_TO ""
+#endif
+#ifndef FACTORY_EMAIL_SUBJECT
+#define FACTORY_EMAIL_SUBJECT "ems-esp notification"
+#endif
 namespace emsesp {
 
 class WebSettings {
@@ -77,6 +107,16 @@ class WebSettings {
     uint16_t modbus_port;
     uint8_t  modbus_max_clients;
     uint32_t modbus_timeout;
+    bool     email_enabled;
+    bool     email_ssl;
+    bool     email_starttls;
+    String   email_server;
+    uint16_t email_port;
+    String   email_login;
+    String   email_pass;
+    String   email_sender;
+    String   email_recp;
+    String   email_subject;
 
     uint8_t phy_type;
     int8_t  eth_power; // -1 means disabled
@@ -88,7 +128,7 @@ class WebSettings {
     static void              read(WebSettings & settings, JsonObject root);
     static StateUpdateResult update(JsonObject root, WebSettings & settings);
 
-    enum ChangeFlags : uint16_t {
+    enum ChangeFlags : uint8_t {
         NONE               = 0,
         UART               = (1 << 0), // 1 - uart
         SYSLOG             = (1 << 1), // 2 - syslog
@@ -98,20 +138,19 @@ class WebSettings {
         LED                = (1 << 5), // 32 - led
         BUTTON             = (1 << 6), // 64 - button
         MQTT               = (1 << 7), // 128 - mqtt
-        MODBUS             = (1 << 8), // 256 - modbus
+        RESTART            = 0xFF      // 255 - restart request (all changes)
-        RESTART            = 0xFFFF    // restart request (all changes)
     };
 
-    static bool     check_flag(int prev_v, int new_v, uint16_t flag);
+    static bool    check_flag(int prev_v, int new_v, uint8_t flag);
-    static void     add_flags(uint16_t flags);
+    static void    add_flags(uint8_t flags);
-    static bool     has_flags(uint16_t flags);
+    static bool    has_flags(uint8_t flags);
     static void    reset_flags();
-    static uint16_t get_flags();
+    static uint8_t get_flags();
 
   private:
     static void set_board_profile(WebSettings & settings);
 
-    static uint16_t flags_;
+    static uint8_t flags_;
 };
 
 class WebSettingsService : public StatefulService<WebSettings> {

src/web/WebStatusService.cpp

@@ -296,6 +296,10 @@ uint8_t WebStatusService::upgradeImportantMessages(std::string & version) {
 
     version::EMSESP_Version current_version(current_version_s); // get current version
 
+    if (latest_version > current_version && current_version.minor() < latest_version.minor()) {
+        return 0; // if it's just a minor version upgrade return 0
+    }
+
     if ((current_version.major() <= 3 && current_version.minor() <= 8) && (latest_version.major() == 3 && latest_version.minor() == 9)) {
         return 1; // if moving from below 3.8.x to 3.9.x return 1
     }
@@ -304,10 +308,6 @@ uint8_t WebStatusService::upgradeImportantMessages(std::string & version) {
         return 2; // if it's a major version upgrade return 2
     }
 
-    if (latest_version > current_version && current_version.minor() < latest_version.minor()) {
-        return 0; // if it's just a minor version upgrade return 0
-    }
-
     return 0; // if it's not a valid version upgrade return 0
 }
 

test/test_api/test_api.cpp

@@ -132,7 +132,7 @@ void uart_telegram(const char * rx_data) {
 
 // add an EMS device and register it
 void add_device(uint8_t device_id, uint8_t product_id) {
-    uart_telegram({device_id, 0x49, EMSdevice::EMS_TYPE_VERSION, 0, product_id, 1, 0});
+    uart_telegram({device_id, 0x0B, EMSdevice::EMS_TYPE_VERSION, 0, product_id, 1, 0});
 }
 
 // add our EMS test devices
@@ -143,14 +143,14 @@ void add_devices() {
     add_device(0x08, 123); // Nefit Trendline
 
     // UBAuptime
-    uart_telegram({0x08, 0x49, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
+    uart_telegram({0x08, 0x0B, 0x14, 00, 0x3C, 0x1F, 0xAC, 0x70});
 
     // Boiler -> Me, UBAMonitorFast(0x18), telegram: 08 00 18 00 00 02 5A 73 3D 0A 10 65 40 02 1A 80 00 01 E1 01 76 0E 3D 48 00 C9 44 02 00 (#data=25)
     uart_telegram({0x08, 0x00, 0x18, 0x00, 0x00, 0x02, 0x5A, 0x73, 0x3D, 0x0A, 0x10, 0x65, 0x40, 0x02, 0x1A,
                    0x80, 0x00, 0x01, 0xE1, 0x01, 0x76, 0x0E, 0x3D, 0x48, 0x00, 0xC9, 0x44, 0x02, 0x00});
 
-    // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 49 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
+    // Boiler -> Me, UBAParameterWW(0x33), telegram: 08 0B 33 00 08 FF 34 FB 00 28 00 00 46 00 FF FF 00 (#data=13)
-    uart_telegram({0x08, 0x49, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
+    uart_telegram({0x08, 0x0B, 0x33, 0x00, 0x08, 0xFF, 0x34, 0xFB, 0x00, 0x28, 0x00, 0x00, 0x46, 0x00, 0xFF, 0xFF, 0x00});
 
     //
     // thermostat

test/test_api/test_api.h

@@ -228,7 +228,7 @@ void test_23() {
         "\"temperatureSensorReads\":0,\"temperatureSensorFails\":0},\"analog\":{\"enabled\":true,\"analogSensors\":5,\"analogSensorReads\":0,"
         "\"analogSensorFails\":0},\"api\":{\"APICalls\":0,\"APIFails\":0},\"bus\":{\"busStatus\":\"connected\",\"busProtocol\":\"Buderus\","
         "\"busTelegramsReceived\":8,\"busReads\":0,\"busWrites\":0,\"busIncompleteTelegrams\":0,\"busReadsFailed\":0,\"busWritesFailed\":0,"
-        "\"busRxLineQuality\":100,\"busTxLineQuality\":100},\"settings\":{\"boardProfile\":\"S32\",\"locale\":\"en\",\"txMode\":5,\"emsBusID\":73,"
+        "\"busRxLineQuality\":100,\"busTxLineQuality\":100},\"settings\":{\"boardProfile\":\"S32\",\"locale\":\"en\",\"txMode\":1,\"emsBusID\":11,"
         "\"showerTimer\":false,\"showerMinDuration\":180,\"showerAlert\":false,\"hideLed\":false,\"noTokenApi\":false,\"readonlyMode\":false,\"fahrenheit\":"
         "false,\"dallasParasite\":false,\"boolFormat\":1,\"boolDashboard\":1,\"enumFormat\":1,\"analogEnabled\":true,\"telnetEnabled\":true,"
         "\"maxWebLogBuffer\":25,\"modbusEnabled\":false,\"forceHeatingOff\":false,\"developerMode\":false},\"devices\":[{\"type\":\"boiler\",\"name\":\"My "
@@ -259,7 +259,7 @@ void test_24() {
         "\"temperatureSensorReads\":0,\"temperatureSensorFails\":0},\"analog\":{\"enabled\":true,\"analogSensors\":5,\"analogSensorReads\":0,"
         "\"analogSensorFails\":0},\"api\":{\"APICalls\":0,\"APIFails\":0},\"bus\":{\"busStatus\":\"connected\",\"busProtocol\":\"Buderus\","
         "\"busTelegramsReceived\":8,\"busReads\":0,\"busWrites\":0,\"busIncompleteTelegrams\":0,\"busReadsFailed\":0,\"busWritesFailed\":0,"
-        "\"busRxLineQuality\":100,\"busTxLineQuality\":100},\"settings\":{\"boardProfile\":\"S32\",\"locale\":\"en\",\"txMode\":5,\"emsBusID\":73,"
+        "\"busRxLineQuality\":100,\"busTxLineQuality\":100},\"settings\":{\"boardProfile\":\"S32\",\"locale\":\"en\",\"txMode\":1,\"emsBusID\":11,"
         "\"showerTimer\":false,\"showerMinDuration\":180,\"showerAlert\":false,\"hideLed\":false,\"noTokenApi\":false,\"readonlyMode\":false,\"fahrenheit\":"
         "false,\"dallasParasite\":false,\"boolFormat\":1,\"boolDashboard\":1,\"enumFormat\":1,\"analogEnabled\":true,\"telnetEnabled\":true,"
         "\"maxWebLogBuffer\":25,\"modbusEnabled\":false,\"forceHeatingOff\":false,\"developerMode\":false},\"devices\":[{\"type\":\"boiler\",\"name\":\"My "
@@ -330,8 +330,8 @@ void test_25() {
         "gauge\\nemsesp_bus_buswritesfailed 0\\n# HELP emsesp_bus_busrxlinequality busRxLineQuality\\n# TYPE emsesp_bus_busrxlinequality "
         "gauge\\nemsesp_bus_busrxlinequality 100\\n# HELP emsesp_bus_bustxlinequality busTxLineQuality\\n# TYPE emsesp_bus_bustxlinequality "
         "gauge\\nemsesp_bus_bustxlinequality 100\\n# HELP emsesp_bus_info info\\n# TYPE emsesp_bus_info gauge\\nemsesp_bus_info{busstatus=\\\"connected\\\", "
-        "busprotocol=\\\"Buderus\\\"} 1\\n# HELP emsesp_settings_txmode txMode\\n# TYPE emsesp_settings_txmode gauge\\nemsesp_settings_txmode 5\\n# HELP "
+        "busprotocol=\\\"Buderus\\\"} 1\\n# HELP emsesp_settings_txmode txMode\\n# TYPE emsesp_settings_txmode gauge\\nemsesp_settings_txmode 1\\n# HELP "
-        "emsesp_settings_emsbusid emsBusID\\n# TYPE emsesp_settings_emsbusid gauge\\nemsesp_settings_emsbusid 73\\n# HELP emsesp_settings_showertimer "
+        "emsesp_settings_emsbusid emsBusID\\n# TYPE emsesp_settings_emsbusid gauge\\nemsesp_settings_emsbusid 11\\n# HELP emsesp_settings_showertimer "
         "showerTimer\\n# TYPE emsesp_settings_showertimer gauge\\nemsesp_settings_showertimer 0\\n# HELP emsesp_settings_showerminduration "
         "showerMinDuration\\n# TYPE emsesp_settings_showerminduration gauge\\nemsesp_settings_showerminduration 180\\n# HELP emsesp_settings_showeralert "
         "showerAlert\\n# TYPE emsesp_settings_showeralert gauge\\nemsesp_settings_showeralert 0\\n# HELP emsesp_settings_hideled hideLed\\n# TYPE "