Merge pull request #2747 from proddy/dev

MQTT reset button & label color for TextFields when disabled

interface/pnpm-lock.yaml

@@ -1117,8 +1117,8 @@ packages:
     resolution: {integrity: sha512-DLIsRzJVBQu72meAKPkWQOLcujdXT32hwdfnkI1frSiSRMK1MofjKHf+MEx0SB6fjEFXL8fBDv1dKymBlOp4Qw==}
     engines: {node: '>=0.10.0'}
 
-  caniuse-lite@1.0.30001754:
-    resolution: {integrity: sha512-x6OeBXueoAceOmotzx3PO4Zpt4rzpeIFsSr6AAePTZxSkXiYDUmpypEl7e2+8NCd9bD7bXjqyef8CJYPC1jfxg==}
+  caniuse-lite@1.0.30001755:
+    resolution: {integrity: sha512-44V+Jm6ctPj7R52Na4TLi3Zri4dWUljJd+RDm+j8LtNCc/ihLCT+X1TzoOAkRETEWqjuLnh9581Tl80FvK7jVA==}
 
   caw@2.0.1:
     resolution: {integrity: sha512-Cg8/ZSBEa8ZVY9HspcGUYaK63d/bN7rqS3CYCzEGUxuYv6UlmcjzDUz2fCFFHyTvUW5Pk0I+3hkA3iXlIj6guA==}
@@ -1225,8 +1225,8 @@ packages:
     resolution: {integrity: sha512-wvlcdIbf6pwKEk7vHj8/Bkc0B4ylXZruLvOgs9doS5eOsOpuodOV2zJChSpkp+pRpYQLQMeF04nr3Z68Sta9jA==}
     engines: {node: '>=8.0.0'}
 
-  csstype@3.2.1:
-    resolution: {integrity: sha512-98XGutrXoh75MlgLihlNxAGbUuFQc7l1cqcnEZlLNKc0UrVdPndgmaDmYTDDh929VS/eqTZV0rozmhu2qqT1/g==}
+  csstype@3.2.2:
+    resolution: {integrity: sha512-D80T+tiqkd/8B0xNlbstWDG4x6aqVfO52+OlSUNIdkTvmNw0uQpJLeos2J/2XvpyidAFuTPmpad+tUxLndwj6g==}
 
   currently-unhandled@0.4.1:
     resolution: {integrity: sha512-/fITjgjGU50vjQ4FH6eUoYu+iUoUKIXws2hL15JJpIR+BbTxaXQsMuuyjtNh2WqsSBS5nsaZHFsFecyw5CCAng==}
@@ -1337,8 +1337,8 @@ packages:
   duplexer3@0.1.5:
     resolution: {integrity: sha512-1A8za6ws41LQgv9HrE/66jyC5yuSjQ3L/KOpFtoBilsAK2iA2wuS5rTt1OCzIvtS2V7nVmedsUU+DGRcjBmOYA==}
 
-  electron-to-chromium@1.5.253:
-    resolution: {integrity: sha512-O0tpQ/35rrgdiGQ0/OFWhy1itmd9A6TY9uQzlqj3hKSu/aYpe7UIn5d7CU2N9myH6biZiWF3VMZVuup8pw5U9w==}
+  electron-to-chromium@1.5.254:
+    resolution: {integrity: sha512-DcUsWpVhv9svsKRxnSCZ86SjD+sp32SGidNB37KpqXJncp1mfUgKbHvBomE89WJDbfVKw1mdv5+ikrvd43r+Bg==}
 
   emoji-regex@8.0.0:
     resolution: {integrity: sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==}
@@ -3290,7 +3290,7 @@ snapshots:
       '@emotion/memoize': 0.9.0
       '@emotion/unitless': 0.10.0
       '@emotion/utils': 1.4.2
-      csstype: 3.2.1
+      csstype: 3.2.2
 
   '@emotion/sheet@1.4.0': {}
 
@@ -3507,7 +3507,7 @@ snapshots:
       '@popperjs/core': 2.11.8
       '@types/react-transition-group': 4.4.12(@types/react@19.2.5)
       clsx: 2.1.1
-      csstype: 3.2.1
+      csstype: 3.2.2
       prop-types: 15.8.1
       react: 19.2.0
       react-dom: 19.2.0(react@19.2.0)
@@ -3533,7 +3533,7 @@ snapshots:
       '@emotion/cache': 11.14.0
       '@emotion/serialize': 1.3.3
       '@emotion/sheet': 1.4.0
-      csstype: 3.2.1
+      csstype: 3.2.2
       prop-types: 15.8.1
       react: 19.2.0
     optionalDependencies:
@@ -3548,7 +3548,7 @@ snapshots:
       '@mui/types': 7.4.8(@types/react@19.2.5)
       '@mui/utils': 7.3.5(@types/react@19.2.5)(react@19.2.0)
       clsx: 2.1.1
-      csstype: 3.2.1
+      csstype: 3.2.2
       prop-types: 15.8.1
       react: 19.2.0
     optionalDependencies:
@@ -3796,7 +3796,7 @@ snapshots:
 
   '@types/react@19.2.5':
     dependencies:
-      csstype: 3.2.1
+      csstype: 3.2.2
 
   '@types/responselike@1.0.3':
     dependencies:
@@ -4021,8 +4021,8 @@ snapshots:
   browserslist@4.28.0:
     dependencies:
       baseline-browser-mapping: 2.8.28
-      caniuse-lite: 1.0.30001754
-      electron-to-chromium: 1.5.253
+      caniuse-lite: 1.0.30001755
+      electron-to-chromium: 1.5.254
       node-releases: 2.0.27
       update-browserslist-db: 1.1.4(browserslist@4.28.0)
 
@@ -4080,7 +4080,7 @@ snapshots:
 
   camelcase@2.1.1: {}
 
-  caniuse-lite@1.0.30001754: {}
+  caniuse-lite@1.0.30001755: {}
 
   caw@2.0.1:
     dependencies:
@@ -4211,7 +4211,7 @@ snapshots:
     dependencies:
       css-tree: 1.1.3
 
-  csstype@3.2.1: {}
+  csstype@3.2.2: {}
 
   currently-unhandled@0.4.1:
     dependencies:
@@ -4294,7 +4294,7 @@ snapshots:
   dom-helpers@5.2.1:
     dependencies:
       '@babel/runtime': 7.28.4
-      csstype: 3.2.1
+      csstype: 3.2.2
 
   dom-serializer@1.4.1:
     dependencies:
@@ -4367,7 +4367,7 @@ snapshots:
 
   duplexer3@0.1.5: {}
 
-  electron-to-chromium@1.5.253: {}
+  electron-to-chromium@1.5.254: {}
 
   emoji-regex@8.0.0: {}
 

interface/src/app/main/SensorsAnalogDialog.tsx

@@ -14,7 +14,6 @@ import {
   Grid,
   InputAdornment,
   MenuItem,
-  TextField,
   Typography
 } from '@mui/material';
 
@@ -172,42 +171,32 @@ const SensorsAnalogDialog = ({
       <DialogTitle>{dialogTitle}</DialogTitle>
       <DialogContent dividers>
         <Grid container spacing={2}>
-          {editItem.s ? (
-            <TextField
-              name="g"
-              label="GPIO"
-              value={editItem.g}
-              sx={{ width: '8ch' }}
-              disabled={true}
-            ></TextField>
-          ) : (
-            <ValidatedTextField
-              name="g"
-              label="GPIO"
-              value={editItem.g}
-              sx={{ width: '8ch' }}
-              select
-              onChange={updateFormValue}
-            >
-              {availableGPIOs?.map((gpio: number) => (
-                <MenuItem key={gpio} value={gpio}>
-                  {gpio}
-                </MenuItem>
-              ))}
-            </ValidatedTextField>
-          )}
+          <ValidatedTextField
+            name="g"
+            label="GPIO"
+            value={editItem.g}
+            sx={{ width: '8ch' }}
+            disabled={editItem.s}
+            select
+            onChange={updateFormValue}
+          >
+            {availableGPIOs?.map((gpio: number) => (
+              <MenuItem key={gpio} value={gpio}>
+                {gpio}
+              </MenuItem>
+            ))}
+          </ValidatedTextField>
           <Grid>
             <ValidatedTextField
               name="n"
               label={LL.NAME(0)}
               value={editItem.n}
               fullWidth
-              variant="outlined"
               onChange={updateFormValue}
             />
           </Grid>
           <Grid>
-            <TextField
+            <ValidatedTextField
               name="t"
               label={LL.TYPE(0)}
               value={editItem.t}
@@ -217,11 +206,11 @@ const SensorsAnalogDialog = ({
               disabled={editItem.s}
             >
               {analogTypeMenuItems}
-            </TextField>
+            </ValidatedTextField>
           </Grid>
           {(isCounterOrRate || isFreqType) && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="u"
                 label={LL.UNIT()}
                 value={editItem.u}
@@ -231,18 +220,17 @@ const SensorsAnalogDialog = ({
                 disabled={editItem.s}
               >
                 {uomMenuItems}
-              </TextField>
+              </ValidatedTextField>
             </Grid>
           )}
           {editItem.t === AnalogType.ADC && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="o"
                 label={LL.OFFSET()}
                 value={numberValue(editItem.o)}
                 type="number"
                 sx={{ width: '11ch' }}
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
                 slotProps={{
@@ -258,13 +246,12 @@ const SensorsAnalogDialog = ({
           )}
           {editItem.t === AnalogType.NTC && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="o"
                 label={LL.OFFSET()}
                 value={numberValue(editItem.o)}
                 sx={{ width: '11ch' }}
                 type="number"
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
                 slotProps={{
@@ -280,13 +267,12 @@ const SensorsAnalogDialog = ({
           )}
           {editItem.t === AnalogType.COUNTER && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="o"
                 label={LL.STARTVALUE()}
                 value={numberValue(editItem.o)}
                 type="number"
                 sx={{ width: '11ch' }}
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
                 slotProps={{
@@ -297,13 +283,12 @@ const SensorsAnalogDialog = ({
           )}
           {editItem.t === AnalogType.RGB && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="o"
                 label={'RGB ' + LL.VALUE(0)}
                 value={numberValue(editItem.o)}
                 type="number"
                 sx={{ width: '11ch' }}
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
               />
@@ -311,13 +296,12 @@ const SensorsAnalogDialog = ({
           )}
           {isCounterOrRate && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="f"
                 label={LL.FACTOR()}
                 value={numberValue(editItem.f)}
                 sx={{ width: '14ch' }}
                 type="number"
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
                 slotProps={{
@@ -328,13 +312,12 @@ const SensorsAnalogDialog = ({
           )}
           {isDigitalOutGPIO && (
             <Grid>
-              <TextField
+              <ValidatedTextField
                 name="o"
                 label={LL.VALUE(0)}
                 value={numberValue(editItem.o)}
                 sx={{ width: '11ch' }}
                 type="number"
-                variant="outlined"
                 onChange={updateFormValue}
                 disabled={editItem.s}
                 slotProps={{
@@ -346,21 +329,20 @@ const SensorsAnalogDialog = ({
           {isDigitalOutNonGPIO && (
             <>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="o"
                   label={LL.VALUE(0)}
                   value={numberValue(editItem.o)}
                   select
-                  variant="outlined"
                   onChange={updateFormValue}
                   disabled={editItem.s}
                 >
                   <MenuItem value={0}>{LL.OFF()}</MenuItem>
                   <MenuItem value={1}>{LL.ON()}</MenuItem>
-                </TextField>
+                </ValidatedTextField>
               </Grid>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="f"
                   label={LL.POLARITY()}
                   value={editItem.f}
@@ -371,10 +353,10 @@ const SensorsAnalogDialog = ({
                 >
                   <MenuItem value={1}>{LL.ACTIVEHIGH()}</MenuItem>
                   <MenuItem value={-1}>{LL.ACTIVELOW()}</MenuItem>
-                </TextField>
+                </ValidatedTextField>
               </Grid>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="u"
                   label={LL.STARTVALUE()}
                   sx={{ width: '15ch' }}
@@ -390,19 +372,18 @@ const SensorsAnalogDialog = ({
                   <MenuItem value={2}>
                     {LL.ALWAYS()}&nbsp;{LL.ON()}
                   </MenuItem>
-                </TextField>
+                </ValidatedTextField>
               </Grid>
             </>
           )}
           {isPWM && (
             <>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="f"
                   label={LL.FREQ()}
                   value={numberValue(editItem.f)}
                   type="number"
-                  variant="outlined"
                   sx={{ width: '11ch' }}
                   onChange={updateFormValue}
                   disabled={editItem.s}
@@ -417,13 +398,12 @@ const SensorsAnalogDialog = ({
                 />
               </Grid>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="o"
                   label={LL.DUTY_CYCLE()}
                   value={numberValue(editItem.o)}
                   type="number"
                   sx={{ width: '11ch' }}
-                  variant="outlined"
                   onChange={updateFormValue}
                   disabled={editItem.s}
                   slotProps={{
@@ -441,7 +421,7 @@ const SensorsAnalogDialog = ({
           {editItem.t === AnalogType.PULSE && (
             <>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="o"
                   label={LL.POLARITY()}
                   value={editItem.o}
@@ -452,16 +432,15 @@ const SensorsAnalogDialog = ({
                 >
                   <MenuItem value={0}>{LL.ACTIVEHIGH()}</MenuItem>
                   <MenuItem value={1}>{LL.ACTIVELOW()}</MenuItem>
-                </TextField>
+                </ValidatedTextField>
               </Grid>
               <Grid>
-                <TextField
+                <ValidatedTextField
                   name="f"
                   label="Pulse"
                   value={numberValue(editItem.f)}
                   type="number"
                   sx={{ width: '15ch' }}
-                  variant="outlined"
                   onChange={updateFormValue}
                   disabled={editItem.s}
                   slotProps={{

interface/src/app/settings/MqttSettings.tsx

@@ -1,8 +1,11 @@
 import { useCallback, useMemo, useState } from 'react';
+import { toast } from 'react-toastify';
 
 import CancelIcon from '@mui/icons-material/Cancel';
+import SettingsBackupRestoreIcon from '@mui/icons-material/SettingsBackupRestore';
 import WarningIcon from '@mui/icons-material/Warning';
 import {
+  Box,
   Button,
   Checkbox,
   Grid,
@@ -30,6 +33,8 @@ import type { MqttSettingsType } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
 import { createMqttSettingsValidator, validate } from 'validators';
 
+import { callAction } from '../../api/app';
+
 const MqttSettings = () => {
   const {
     loadData,
@@ -52,6 +57,16 @@ const MqttSettings = () => {
 
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
 
+  const sendResetMQTT = useCallback(() => {
+    void callAction({ action: 'resetMQTT' })
+      .then(() => {
+        toast.success('MQTT ' + LL.REFRESH() + ' successful');
+      })
+      .catch((error) => {
+        toast.error(String(error.error?.message || 'An error occurred'));
+      });
+  }, []);
+
   const updateFormValue = useMemo(
     () =>
       updateValueDirty(
@@ -114,16 +129,28 @@ const MqttSettings = () => {
     <SectionContent>
       {blocker ? <BlockNavigation blocker={blocker} /> : null}
       <>
-        <BlockFormControlLabel
-          control={
-            <Checkbox
-              name="enabled"
-              checked={data.enabled}
-              onChange={updateFormValue}
-            />
-          }
-          label={LL.ENABLE_MQTT()}
-        />
+        <Box display="flex" gap={2} mb={1}>
+          <BlockFormControlLabel
+            control={
+              <Checkbox
+                name="enabled"
+                checked={data.enabled}
+                onChange={updateFormValue}
+              />
+            }
+            label={LL.ENABLE_MQTT()}
+          />
+          {data.enabled && (
+            <Button
+              startIcon={<SettingsBackupRestoreIcon />}
+              color="secondary"
+              variant="outlined"
+              onClick={sendResetMQTT}
+            >
+              {LL.REFRESH() + ' MQTT'}
+            </Button>
+          )}
+        </Box>
         <Grid container spacing={2} rowSpacing={0}>
           <Grid>
             <ValidatedTextField

interface/src/components/inputs/ValidatedTextField.tsx

@@ -21,7 +21,16 @@ const ValidatedTextField: FC<ValidatedTextFieldProps> = ({
 
   return (
     <>
-      <TextField error={!!errors} {...rest} aria-label="Error" />
+      <TextField
+        error={!!errors}
+        {...rest}
+        aria-label="Error"
+        slotProps={{
+          inputLabel: {
+            style: rest.disabled ? { color: 'grey' } : undefined
+          }
+        }}
+      />
       {errors?.map((e) => (
         <FormHelperText key={e.message} sx={{ color: 'rgb(250, 95, 84)' }}>
           {e.message}

mock-api/restServer.ts

@@ -5106,6 +5106,10 @@ router
         // upload URL
         console.log('upload File from URL', content.param);
         return status(200);
+      } else if (action === 'resetMQTT') {
+        // reset MQTT
+        console.log('resetting MQTT...');
+        return status(200);
       }
     }
     return status(404); // cmd not found

src/ESP32React/MqttSettingsService.cpp

@@ -167,7 +167,7 @@ void MqttSettingsService::WiFiEvent(WiFiEvent_t event) {
 bool MqttSettingsService::configureMqtt() {
     // disconnect if already connected
     if (_mqttClient->connected()) {
-        emsesp::EMSESP::logger().info("Disconnecting to configure");
+        // emsesp::EMSESP::logger().info("Disconnecting to configure");
         _mqttClient->disconnect(true);
     }
 

src/core/console.cpp

@@ -357,7 +357,7 @@ static void setup_commands(std::shared_ptr<Commands> const & commands) {
                                   shell.printfln(F_(tx_mode_fmt), settings.tx_mode);
                                   return StateUpdateResult::CHANGED;
                               });
-                              EMSESP::uart_init();
+                              EMSESP::system_.uart_init(false);
                           });
 
     //

src/core/emsesp.cpp

@@ -240,36 +240,6 @@ void EMSESP::watch_id(uint16_t watch_id) {
     watch_id_ = watch_id;
 }
 
-// resets all counters and bumps the UART
-// this is called when the tx_mode is persisted in the FS either via Web UI or the console
-void EMSESP::uart_init() {
-    uint8_t tx_mode = 0;
-    uint8_t rx_gpio = 0;
-    uint8_t tx_gpio = 0;
-    EMSESP::webSettingsService.read([&](WebSettings const & settings) {
-        tx_mode = settings.tx_mode;
-        rx_gpio = settings.rx_gpio;
-        tx_gpio = settings.tx_gpio;
-    });
-
-    EMSuart::stop();
-
-    // don't start UART if we have invalid GPIOs
-    if (EMSESP::system_.is_valid_gpio(rx_gpio) && EMSESP::system_.is_valid_gpio(tx_gpio)) {
-        EMSuart::start(tx_mode, rx_gpio, tx_gpio); // start UART
-    } else {
-        LOG_WARNING("Invalid UART Rx/Tx GPIOs. Check config.");
-    }
-
-    txservice_.start(); // sends out request to EMS bus for all devices
-    txservice_.tx_mode(tx_mode);
-
-    // force a fetch for all new values, unless Tx is set to off
-    // if (tx_mode != 0) {
-    // EMSESP::fetch_device_values();
-    // }
-}
-
 // return status of bus: connected (0), connected but Tx is broken (1), disconnected (2)
 uint8_t EMSESP::bus_status() {
     if (!rxservice_.bus_connected()) {

src/core/emsesp.h

@@ -147,8 +147,6 @@ class EMSESP {
     static void dump_all_entities(uuid::console::Shell & shell);
     static void dump_all_telegrams(uuid::console::Shell & shell);
 
-    static void uart_init();
-
     static void incoming_telegram(uint8_t * data, const uint8_t length);
 
     static bool sensor_enabled() {

src/core/mqtt.cpp

@@ -321,8 +321,12 @@ void Mqtt::on_publish(uint16_t packetId) const {
     LOG_DEBUG("Packet %d sent successful", packetId);
 }
 
-// called when MQTT settings have changed via the Web forms
+// called when MQTT settings have changed via the MQTT Settings or Application Settings Web pages
 void Mqtt::reset_mqtt() {
+    if (!enabled()) {
+        return;
+    }
+
     if (!mqttClient_) {
         return;
     }

src/core/system.cpp

@@ -406,15 +406,21 @@ void System::syslog_init() {
 
 // read some specific system settings to store locally for faster access
 void System::reload_settings() {
+    // set gpios to zero for valid check
+    led_gpio_     = 0;
+    rx_gpio_      = 0;
+    tx_gpio_      = 0;
+    pbutton_gpio_ = 0;
+    dallas_gpio_  = 0;
     EMSESP::webSettingsService.read([&](WebSettings & settings) {
         version_ = settings.version;
 
-        pbutton_gpio_   = settings.pbutton_gpio;
+        pbutton_gpio_   = is_valid_gpio(settings.pbutton_gpio) ? settings.pbutton_gpio : 0;
         analog_enabled_ = settings.analog_enabled;
         low_clock_      = settings.low_clock;
         hide_led_       = settings.hide_led;
         led_type_       = settings.led_type;
-        led_gpio_       = settings.led_gpio;
+        led_gpio_       = is_valid_gpio(settings.led_gpio) ? settings.led_gpio : 0;
         board_profile_  = settings.board_profile;
         telnet_enabled_ = settings.telnet_enabled;
 
@@ -423,10 +429,10 @@ void System::reload_settings() {
         modbus_max_clients_ = settings.modbus_max_clients;
         modbus_timeout_     = settings.modbus_timeout;
 
-        rx_gpio_     = settings.rx_gpio;
-        tx_gpio_     = settings.tx_gpio;
-        dallas_gpio_ = settings.dallas_gpio;
-
+        tx_mode_              = settings.tx_mode;
+        rx_gpio_              = is_valid_gpio(settings.rx_gpio) ? settings.rx_gpio : 0;
+        tx_gpio_              = is_valid_gpio(settings.tx_gpio) ? settings.tx_gpio : 0;
+        dallas_gpio_          = is_valid_gpio(settings.dallas_gpio) ? settings.dallas_gpio : 0;
         syslog_enabled_       = settings.syslog_enabled;
         syslog_level_         = settings.syslog_level;
         syslog_mark_interval_ = settings.syslog_mark_interval;
@@ -497,7 +503,7 @@ void System::start() {
     led_init(false);     // init LED
     button_init(false);  // the special button
     network_init(false); // network
-    EMSESP::uart_init(); // start UART
+    uart_init(false);    // start UART
     syslog_init();       // start syslog
 }
 
@@ -550,11 +556,6 @@ void System::button_init(bool refresh) {
     }
 
 #ifndef EMSESP_STANDALONE
-    if (!is_valid_gpio(pbutton_gpio_)) {
-        LOG_WARNING("Invalid button GPIO. Check config.");
-        myPButton_.init(255, HIGH); // disable
-        return;
-    }
     if (!myPButton_.init(pbutton_gpio_, HIGH)) {
         LOG_WARNING("Multi-functional button not detected");
         return;
@@ -572,18 +573,17 @@ void System::button_init(bool refresh) {
 void System::led_init(bool refresh) {
     if (refresh) {
         // disabled old led port before setting new one
-        if ((led_gpio_ != 0) && is_valid_gpio(led_gpio_)) {
+        if (led_gpio_) {
 #if ESP_ARDUINO_VERSION_MAJOR < 3
             led_type_ ? neopixelWrite(led_gpio_, 0, 0, 0) : digitalWrite(led_gpio_, !LED_ON);
 #else
             led_type_ ? rgbLedWrite(led_gpio_, 0, 0, 0) : digitalWrite(led_gpio_, !LED_ON);
 #endif
-            pinMode(led_gpio_, INPUT);
         }
         reload_settings();
     }
 
-    if ((led_gpio_ != 0) && is_valid_gpio(led_gpio_)) { // 0 means disabled
+    if ((led_gpio_)) { // 0 means disabled
         if (led_type_) {
             // rgb LED WS2812B, use Neopixel
 #if ESP_ARDUINO_VERSION_MAJOR < 3
@@ -595,9 +595,27 @@ void System::led_init(bool refresh) {
             pinMode(led_gpio_, OUTPUT);
             digitalWrite(led_gpio_, !LED_ON); // start with LED off
         }
+    } else {
+        LOG_INFO("LED disabled");
     }
 }
 
+void System::uart_init(bool refresh) {
+    if (refresh) {
+        reload_settings();
+    }
+    EMSuart::stop();
+
+    // don't start UART if we have invalid GPIOs
+    if (rx_gpio_ && tx_gpio_) {
+        EMSuart::start(tx_mode_, rx_gpio_, tx_gpio_); // start UART
+    } else {
+        LOG_WARNING("Invalid UART Rx/Tx GPIOs. Check config.");
+    }
+
+    EMSESP::txservice_.start(); // reset counters and send devices request
+}
+
 // checks system health and handles LED flashing wizardry
 void System::loop() {
     // check if we're supposed to do a reset/restart
@@ -1802,11 +1820,12 @@ bool System::command_info(const char * value, const int8_t id, JsonObject output
                 node["ethPhyAddr"]    = settings.eth_phy_addr;
                 node["ethClockMmode"] = settings.eth_clock_mode;
             }
-            node["rxGPIO"]      = settings.rx_gpio;
-            node["txGPIO"]      = settings.tx_gpio;
-            node["dallasGPIO"]  = settings.dallas_gpio;
-            node["pbuttonGPIO"] = settings.pbutton_gpio;
-            node["ledGPIO"]     = settings.led_gpio;
+            node["rxGPIO"]      = EMSESP::system_.rx_gpio_;
+            node["txGPIO"]      = EMSESP::system_.tx_gpio_;
+            node["dallasGPIO"]  = EMSESP::system_.dallas_gpio_;
+            node["pbuttonGPIO"] = EMSESP::system_.pbutton_gpio_;
+            node["ledGPIO"]     = EMSESP::system_.led_gpio_;
+            node["ledType"]     = settings.led_type;
             node["ledType"]     = settings.led_type;
         }
         node["hideLed"]         = settings.hide_led;
@@ -2369,10 +2388,12 @@ std::vector<uint8_t> System::valid_gpio_list() {
         valid_gpios.erase(std::remove(valid_gpios.begin(), valid_gpios.end(), 22), valid_gpios.end());
     }
 
-    // filter out GPIOs already used in application settings
+    // filter out GPIOs already used in application settings, gpio 0 means disabled, except for pbutton
     for (const auto & gpio : valid_gpios) {
-        if (gpio == EMSESP::system_.pbutton_gpio_ || gpio == EMSESP::system_.led_gpio_ || gpio == EMSESP::system_.dallas_gpio_
-            || gpio == EMSESP::system_.rx_gpio_ || gpio == EMSESP::system_.tx_gpio_) {
+        if (gpio == EMSESP::system_.pbutton_gpio_
+            || (gpio
+                && (gpio == EMSESP::system_.led_gpio_ || gpio == EMSESP::system_.dallas_gpio_ || gpio == EMSESP::system_.rx_gpio_
+                    || gpio == EMSESP::system_.tx_gpio_))) {
             valid_gpios.erase(std::remove(valid_gpios.begin(), valid_gpios.end(), gpio), valid_gpios.end());
         }
     }

src/core/system.h

@@ -133,6 +133,7 @@ class System {
     void network_init(bool refresh);
     void button_init(bool refresh);
     void commands_init();
+    void uart_init(bool refresh);
 
     void    systemStatus(uint8_t status_code);
     uint8_t systemStatus();
@@ -145,6 +146,10 @@ class System {
 
     static bool readCommand(const char * data);
 
+    void dallas_gpio(uint8_t gpio) {
+        dallas_gpio_ = gpio;
+    }
+
     bool telnet_enabled() {
         return telnet_enabled_;
     }
@@ -413,6 +418,7 @@ class System {
     uint8_t     pbutton_gpio_;
     uint8_t     rx_gpio_;
     uint8_t     tx_gpio_;
+    uint8_t     tx_mode_;
     uint8_t     dallas_gpio_;
     bool        telnet_enabled_;
     bool        syslog_enabled_;

src/core/temperaturesensor.cpp

@@ -55,10 +55,12 @@ void TemperatureSensor::start(const bool factory_settings) {
 // load settings
 void TemperatureSensor::reload() {
     // load the service settings
+    EMSESP::system_.dallas_gpio(0); // reset in system to check valid sensor
     EMSESP::webSettingsService.read([&](WebSettings const & settings) {
-        dallas_gpio_ = settings.dallas_gpio;
+        dallas_gpio_ = EMSESP::system_.is_valid_gpio(settings.dallas_gpio) ? settings.dallas_gpio : 0;
         parasite_    = settings.dallas_parasite;
     });
+    EMSESP::system_.dallas_gpio(dallas_gpio_); // set to system for checks
 
     for (auto & sensor : sensors_) {
         remove_ha_topic(sensor.id());

src/web/WebSettingsService.cpp

@@ -409,7 +409,7 @@ void WebSettingsService::onUpdate() {
     }
 
     if (WebSettings::has_flags(WebSettings::ChangeFlags::UART)) {
-        EMSESP::uart_init();
+        EMSESP::system_.uart_init(true);
     }
 
     if (WebSettings::has_flags(WebSettings::ChangeFlags::SYSLOG)) {

src/web/WebStatusService.cpp

@@ -195,6 +195,9 @@ void WebStatusService::action(AsyncWebServerRequest * request, JsonVariant json)
         ok = uploadURL(param.c_str());
     } else if (action == "systemStatus" && is_admin) {
         ok = setSystemStatus(param.c_str());
+    } else if (action == "resetMQTT" && is_admin) {
+        emsesp::EMSESP::mqtt_.reset_mqtt();
+        ok = true;
     }
 
 #if defined(EMSESP_STANDALONE) && !defined(EMSESP_UNITY)