core3 adaptions for c3 and c6, compiles for all chips

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"

interface/package.json

@@ -50,7 +50,7 @@
     "@babel/core": "^7.29.0",
     "@eslint/js": "^10.0.1",
     "@preact/compat": "^18.3.2",
-    "@preact/preset-vite": "^2.10.4",
+    "@preact/preset-vite": "^2.10.5",
     "@trivago/prettier-plugin-sort-imports": "^6.0.2",
     "@types/node": "^25.5.0",
     "@types/react": "^19.2.14",

interface/pnpm-lock.yaml

@@ -82,8 +82,8 @@ importers:
         specifier: ^10.0.1
         version: 10.0.1(eslint@10.1.0)
       '@preact/preset-vite':
-        specifier: ^2.10.4
+        specifier: ^2.10.5
-        version: 2.10.4(@babel/core@7.29.0)(preact@10.29.0)(rollup@4.59.0)(vite@8.0.1(@types/node@25.5.0)(esbuild@0.27.4)(terser@5.46.1))
+        version: 2.10.5(@babel/core@7.29.0)(preact@10.29.0)(rollup@4.59.0)(vite@8.0.1(@types/node@25.5.0)(esbuild@0.27.4)(terser@5.46.1))
       '@trivago/prettier-plugin-sort-imports':
         specifier: ^6.0.2
         version: 6.0.2(prettier@3.8.1)
@@ -657,8 +657,8 @@ packages:
     peerDependencies:
       preact: '*'
 
-  '@preact/preset-vite@2.10.4':
+  '@preact/preset-vite@2.10.5':
-    resolution: {integrity: sha512-L7RQRs2GiG0lLUz7JSg07vU6lhlzdIthH0eqYZmRR70tTB9ikKCq2LHr+PZzhzIOco3Dioi6P6e/fjAmDUMJbQ==}
+    resolution: {integrity: sha512-p0vJpxiVO7KWWazWny3LUZ+saXyZKWv6Ju0bYMWNJRp2YveufRPgSUB1C4MTqGJfz07EehMgfN+AJNwQy+w6Iw==}
     peerDependencies:
       '@babel/core': 7.x
       vite: 2.x || 3.x || 4.x || 5.x || 6.x || 7.x || 8.x
@@ -3879,7 +3879,7 @@ snapshots:
     dependencies:
       preact: 10.29.0
 
-  '@preact/preset-vite@2.10.4(@babel/core@7.29.0)(preact@10.29.0)(rollup@4.59.0)(vite@8.0.1(@types/node@25.5.0)(esbuild@0.27.4)(terser@5.46.1))':
+  '@preact/preset-vite@2.10.5(@babel/core@7.29.0)(preact@10.29.0)(rollup@4.59.0)(vite@8.0.1(@types/node@25.5.0)(esbuild@0.27.4)(terser@5.46.1))':
     dependencies:
       '@babel/core': 7.29.0
       '@babel/plugin-transform-react-jsx': 7.28.6(@babel/core@7.29.0)

lib/uuid-syslog/src/syslog.cpp

@@ -20,7 +20,7 @@
 #include "../../src/core/emsesp.h"
 
 #ifndef UUID_SYSLOG_HAVE_GETTIMEOFDAY
-#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#if defined(ARDUINO_ARCH_ESP8266)
 // time() does not return UTC on the ESP8266: https://github.com/esp8266/Arduino/issues/4637
 #define UUID_SYSLOG_HAVE_GETTIMEOFDAY 1
 #endif

src/ESP32React/NTPSettingsService.cpp

@@ -52,7 +52,12 @@ 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/UploadFileService.cpp

@@ -61,22 +61,27 @@ void UploadFileService::handleUpload(AsyncWebServerRequest * request, const Stri
         if (_is_firmware) {
             // Check firmware header, 0xE9 magic offset 0 indicates esp bin, chip offset 12: esp32:0, S2:2, C3:5
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
-            if (len > 12 && (data[0] != 0xE9 || data[12] != 0)) {
+            if (len > 12 && (data[0] != ESP_IMAGE_HEADER_MAGIC || data[12] != ESP_CHIP_ID_ESP32)) {
                 handleError(request, 503); // service unavailable
                 return;
             }
 #elif CONFIG_IDF_TARGET_ESP32S2
-            if (len > 12 && (data[0] != 0xE9 || data[12] != 2)) {
+            if (len > 12 && (data[0] != ESP_IMAGE_HEADER_MAGIC || data[12] != ESP_CHIP_ID_ESP32S2)) {
                 handleError(request, 503); // service unavailable
                 return;
             }
 #elif CONFIG_IDF_TARGET_ESP32C3
-            if (len > 12 && (data[0] != 0xE9 || data[12] != 5)) {
+            if (len > 12 && (data[0] != ESP_IMAGE_HEADER_MAGIC || data[12] != ESP_CHIP_ID_ESP32C3)) {
                 handleError(request, 503); // service unavailable
                 return;
             }
 #elif CONFIG_IDF_TARGET_ESP32S3
-            if (len > 12 && (data[0] != 0xE9 || data[12] != 9)) {
+            if (len > 12 && (data[0] != ESP_IMAGE_HEADER_MAGIC || data[12] != ESP_CHIP_ID_ESP32S3)) {
+                handleError(request, 503); // service unavailable
+                return;
+            }
+#elif CONFIG_IDF_TARGET_ESP32C6
+            if (len > 12 && (data[0] != ESP_IMAGE_HEADER_MAGIC || data[12] != ESP_CHIP_ID_ESP32C6)) {
                 handleError(request, 503); // service unavailable
                 return;
             }

src/core/default_settings.h

@@ -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

src/core/system.cpp

@@ -3208,6 +3208,10 @@ 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

src/devices/thermostat.cpp

@@ -1759,8 +1759,12 @@ void Thermostat::process_RCTime(std::shared_ptr<const Telegram> telegram) {
             ttime         = mktime(tm_); // thermostat time
         }
         struct timeval newnow = {.tv_sec = ttime, .tv_usec = 0};
+#if CONFIG_IDF_TARGET_ESP32C3
+        // unknown how to set time on C3
+#else
         settimeofday(&newnow, nullptr);
         LOG_INFO("ems-esp time set from thermostat");
+#endif
     }
 #endif
 }

src/web/WebSettingsService.cpp

@@ -506,6 +506,8 @@ void WebSettings::set_board_profile(WebSettings & settings) {
         settings.board_profile = "S2MINI";
 #elif CONFIG_IDF_TARGET_ESP32S3
         settings.board_profile = "S32S3"; // BBQKees Gateway S3
+#elif CONFIG_IDF_TARGET_ESP32C6
+        settings.board_profile = "CUSTOM";
 #endif
         // apply the new board profile setting
         System::load_board_profile(data, settings.board_profile.c_str());