Add Internal Temperature usermod (#3246)

* Add Internal Temperature usermod

* Fix line endings

* Update readme

* Format readme

usermods/Internal_Temperature_v2/readme.md

@@ -0,0 +1,17 @@
+# Internal Temperature Usermod
+This usermod adds the temperature readout to the Info tab and also publishes that over the topic `mcutemp` topic.
+
+## Important
+A shown temp of 53,33°C might indicate that the internal temp is not supported.
+
+ESP8266 does not have a internal temp sensor
+
+ESP32S2 seems to crash on reading the sensor -> disabled
+
+## Installation
+Add a build flag `-D USERMOD_INTERNAL_TEMPERATURE` to your `platformio.ini` (or `platformio_override.ini`).
+
+## Authors
+Soeren Willrodt [@lost-hope](https://github.com/lost-hope)
+
+Dimitry Zhemkov [@dima-zhemkov](https://github.com/dima-zhemkov)

usermods/Internal_Temperature_v2/usermod_internal_temperature.h

@@ -0,0 +1,117 @@
+#pragma once
+
+#include "wled.h"
+
+class InternalTemperatureUsermod : public Usermod
+{
+
+private:
+  unsigned long loopInterval = 10000;
+  unsigned long lastTime = 0;
+  bool isEnabled = false;
+  float temperature = 0;
+
+  static const char _name[];
+  static const char _enabled[];
+  static const char _loopInterval[];
+
+  // any private methods should go here (non-inline methosd should be defined out of class)
+  void publishMqtt(const char *state, bool retain = false); // example for publishing MQTT message
+
+public:
+  void setup()
+  {
+  }
+
+  void loop()
+  {
+    // if usermod is disabled or called during strip updating just exit
+    // NOTE: on very long strips strip.isUpdating() may always return true so update accordingly
+    if (!isEnabled || strip.isUpdating() || millis() - lastTime <= loopInterval)
+      return;
+
+    lastTime = millis();
+
+#ifdef ESP8266 // ESP8266
+    // does not seem possible
+    temperature = -1;
+#elif defined(CONFIG_IDF_TARGET_ESP32S2) // ESP32S2
+    temperature = -1;
+#else                                    // ESP32 ESP32S3 and ESP32C3
+    temperature = roundf(temperatureRead() * 10) / 10;
+#endif
+
+#ifndef WLED_DISABLE_MQTT
+    if (WLED_MQTT_CONNECTED)
+    {
+      char array[10];
+      snprintf(array, sizeof(array), "%f", temperature);
+      publishMqtt(array);
+    }
+#endif
+  }
+
+  void addToJsonInfo(JsonObject &root)
+  {
+    if (!isEnabled)
+      return;
+
+    // if "u" object does not exist yet wee need to create it
+    JsonObject user = root["u"];
+    if (user.isNull())
+      user = root.createNestedObject("u");
+
+    JsonArray userTempArr = user.createNestedArray(FPSTR(_name));
+    userTempArr.add(temperature);
+    userTempArr.add(F(" °C"));
+
+    // if "sensor" object does not exist yet wee need to create it
+    JsonObject sensor = root[F("sensor")];
+    if (sensor.isNull())
+      sensor = root.createNestedObject(F("sensor"));
+
+    JsonArray sensorTempArr = sensor.createNestedArray(FPSTR(_name));
+    sensorTempArr.add(temperature);
+    sensorTempArr.add(F("°C"));
+  }
+
+  void addToConfig(JsonObject &root)
+  {
+    JsonObject top = root.createNestedObject(FPSTR(_name));
+    top[FPSTR(_enabled)] = isEnabled;
+    top[FPSTR(_loopInterval)] = loopInterval;
+  }
+
+  bool readFromConfig(JsonObject &root)
+  {
+    JsonObject top = root[FPSTR(_name)];
+    bool configComplete = !top.isNull();
+    configComplete &= getJsonValue(top[FPSTR(_enabled)], isEnabled);
+    configComplete &= getJsonValue(top[FPSTR(_loopInterval)], loopInterval);
+
+    return configComplete;
+  }
+
+  uint16_t getId()
+  {
+    return USERMOD_ID_INTERNAL_TEMPERATURE;
+  }
+};
+
+const char InternalTemperatureUsermod::_name[] PROGMEM = "Internal Temperature";
+const char InternalTemperatureUsermod::_enabled[] PROGMEM = "Enabled";
+const char InternalTemperatureUsermod::_loopInterval[] PROGMEM = "Loop Interval";
+
+void InternalTemperatureUsermod::publishMqtt(const char *state, bool retain)
+{
+#ifndef WLED_DISABLE_MQTT
+  // Check if MQTT Connected, otherwise it will crash the 8266
+  if (WLED_MQTT_CONNECTED)
+  {
+    char subuf[64];
+    strcpy(subuf, mqttDeviceTopic);
+    strcat_P(subuf, PSTR("/mcutemp"));
+    mqtt->publish(subuf, 0, retain, state);
+  }
+#endif
+}

wled00/const.h

@@ -149,6 +149,7 @@
 #define USERMOD_ID_SHT                   39     //Usermod "usermod_sht.h
 #define USERMOD_ID_KLIPPER               40     //Usermod Klipper percentage
 #define USERMOD_ID_WIREGUARD             41     //Usermod "wireguard.h"
+#define USERMOD_ID_INTERNAL_TEMPERATURE  42     //Usermod "usermod_internal_temperature.h"
 
 //Access point behavior
 #define AP_BEHAVIOR_BOOT_NO_CONN          0     //Open AP when no connection after boot

wled00/usermods_list.cpp

@@ -177,6 +177,10 @@
   #include "../usermods/boblight/boblight.h"
 #endif
 
+#ifdef USERMOD_INTERNAL_TEMPERATURE
+  #include "../usermods/Internal_Temperature_v2/usermod_internal_temperature.h"
+#endif
+
 #if defined(WLED_USE_SD_MMC) || defined(WLED_USE_SD_SPI)
 // This include of SD.h and SD_MMC.h must happen here, else they won't be
 // resolved correctly (when included in mod's header only)
@@ -365,4 +369,8 @@ void registerUsermods()
   #ifdef USERMOD_SHT
   usermods.add(new ShtUsermod());
   #endif
+
+  #ifdef USERMOD_INTERNAL_TEMPERATURE
+  usermods.add(new InternalTemperatureUsermod());
+  #endif
 }