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Add ESP32 internal temperature measurement and automatic Actuator switch Off (#1384)

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* Add automatic stop of relay following ESP32 temperature

To avoid overheating when too much current goes through the device.

Add internal temperature reporting to SYStoMQTT

This function is not available with ESP32 S3 and C3

* Temp update and error log

Update of the temperature to get closer to the datasheet of the ESP32 -40 +85C
and add the module name to the error log
This commit is contained in:
Florian authored and GitHub committed 2023-01-10 11:32:56 -06:00
1 parent 31ffdf1e2b
commit c1cedcf333
5 files changed
+73 -3
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main/main.ino
+34 -1
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@@ -227,6 +227,14 @@ static String ota_server_cert = "";
bool ProcessLock = false; // Process lock when we want to use a critical function like OTA for example
# if defined(SENS_SAR_MEAS_WAIT2_REG)
// ESP32 internal temperature reading
# include <stdio.h>
# include "rom/ets_sys.h"
# include "soc/rtc_cntl_reg.h"
# include "soc/sens_reg.h"
# endif
# ifdef ESP32_ETHERNET
# include <ETH.h>
void WiFiEvent(WiFiEvent_t event);
@@ -1576,6 +1584,9 @@ void loop() {
#ifdef ZactuatorFASTLED
FASTLEDLoop();
#endif
#ifdef ZactuatorONOFF
OverHeatingRelayOFF();
#endif
#ifdef ZactuatorPWM
PWMLoop();
#endif
@@ -1631,13 +1642,32 @@ unsigned long uptime() {
return uptime;
}
/**
* Calculate internal ESP32 temperature
*/
#if defined(ESP32) && defined(SENS_SAR_MEAS_WAIT2_REG)
float intTemperatureRead() {
SET_PERI_REG_BITS(SENS_SAR_MEAS_WAIT2_REG, SENS_FORCE_XPD_SAR, 3, SENS_FORCE_XPD_SAR_S);
SET_PERI_REG_BITS(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_CLK_DIV, 10, SENS_TSENS_CLK_DIV_S);
CLEAR_PERI_REG_MASK(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_POWER_UP);
CLEAR_PERI_REG_MASK(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_DUMP_OUT);
SET_PERI_REG_MASK(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_POWER_UP_FORCE);
SET_PERI_REG_MASK(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_POWER_UP);
ets_delay_us(100);
SET_PERI_REG_MASK(SENS_SAR_TSENS_CTRL_REG, SENS_TSENS_DUMP_OUT);
ets_delay_us(5);
float temp_f = (float)GET_PERI_REG_BITS2(SENS_SAR_SLAVE_ADDR3_REG, SENS_TSENS_OUT, SENS_TSENS_OUT_S);
float temp_c = (temp_f - 32) / 1.8;
return temp_c;
}
#endif
#if defined(ESP8266) || defined(ESP32) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__)
void stateMeasures() {
StaticJsonDocument<JSON_MSG_BUFFER> jsonBuffer;
JsonObject SYSdata = jsonBuffer.to<JsonObject>();
SYSdata["uptime"] = uptime();
SYSdata["version"] = OMG_VERSION;
Log.trace(F("retrieving value of system characteristics Uptime (s):%u" CR), uptime());
# if defined(ESP8266) || defined(ESP32)
uint32_t freeMem;
freeMem = ESP.getFreeHeap();
@@ -1645,6 +1675,9 @@ void stateMeasures() {
SYSdata["mqttport"] = mqtt_port;
SYSdata["mqttsecure"] = mqtt_secure;
# ifdef ESP32
# ifdef SENS_SAR_MEAS_WAIT2_REG // This macro is necessary to retrieve temperature and not present with S3 and C3 environment
SYSdata["tempc"] = intTemperatureRead();
# endif
SYSdata["freestack"] = uxTaskGetStackHighWaterMark(NULL);
# endif
# ifdef ESP32_ETHERNET