From 591021a5568cf0360c4372f7a9e9a88fa42bc1a8 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Mon, 12 Apr 2021 14:59:40 +0200
Subject: [PATCH] Add ESP32 Cpu Temperature

---
 tasmota/support_esp.ino     | 15 ++++++++++++++-
 tasmota/support_tasmota.ino |  5 +++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/tasmota/support_esp.ino b/tasmota/support_esp.ino
index 65dd3871c..19024ee1c 100644
--- a/tasmota/support_esp.ino
+++ b/tasmota/support_esp.ino
@@ -457,7 +457,6 @@ uint8_t* FlashDirectAccess(void) {
   return data;
 }
 
-
 void *special_malloc(uint32_t size) {
   if (psramFound()) {
     return heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
@@ -473,6 +472,20 @@ void *special_realloc(void *ptr, size_t size) {
   }
 }
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+uint8_t temprature_sens_read();  // librtc.a(rtc_analog.o)
+#ifdef __cplusplus
+}
+#endif
+
+float CpuTemperature(void) {
+//  return ConvertTemp(temperatureRead());
+  uint8_t tf = temprature_sens_read();  // Fahrenheit
+  return ConvertTemp(((float)(tf -32) / 1.8));
+}
+
 #endif  // ESP32
 
 /*********************************************************************************************\
diff --git a/tasmota/support_tasmota.ino b/tasmota/support_tasmota.ino
index eb852ca77..17fc84a3f 100644
--- a/tasmota/support_tasmota.ino
+++ b/tasmota/support_tasmota.ino
@@ -821,6 +821,11 @@ bool MqttShowSensor(void)
 {
   ResponseAppendTime();
 
+#ifdef ESP32
+  float t = CpuTemperature();
+  ResponseAppend_P(PSTR(",\"Cpu" D_JSON_TEMPERATURE "\":%*_f"), Settings.flag2.temperature_resolution, &t);
+#endif
+
   int json_data_start = strlen(TasmotaGlobal.mqtt_data);
   for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
 #ifdef USE_TM1638