HomeEnergyMeter/main/readTemps.c

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp32/rom/ets_sys.h"
#include "esp_log.h"
#include "ds18b20.h"
#include "config.h"
#include "readTemps.h"
#include "mqtt.h"

#ifdef ENABLE_DS18B20

/*
#define MAX_NO_OF_SENSORS   1

// This section is for finding out which address that the sensors on the bus has.
DeviceAddress tempSensors[MAX_NO_OF_SENSORS];

int getTempAddresses(DeviceAddress *tsa) {
	
    unsigned int i = 0;
	reset_search();

	while (search(tsa[i],true)) {

        ESP_LOGI("READ_TEMP", "Found a temp sensor. Address:");
        ESP_LOG_BUFFER_HEX_LEVEL("READ_TEMP", &tsa[i][0], 8, ESP_LOG_INFO);
        i++;
	}
    return i;
}*/

void readTemps() {

    char txt[10];
    static bool initDone = false;

    const uint8_t intTempAddressBytes[8]={0x28,0x41,0x2e,0x7b,0x0d,0x00,0x00,0x2a}; // Address of the internal 
    DeviceAddress *intTempSensorAdr = (DeviceAddress *) intTempAddressBytes;

    if( initDone == false ) {
        ESP_LOGI("READ_TEMP", "Init of readTemps");

        ds18b20_init(ONE_WIRE_BUS_IO);
        //ESP_LOGI("READ_TEMP", "getTempAddresses()");
        //const int noOfSensors = getTempAddresses(tempSensors);
        //ds18b20_setResolution(tempSensors,noOfSensors,10);

        ds18b20_setResolution(intTempSensorAdr,1,10);

        initDone = true;
    }

    ds18b20_requestTemperatures();
    float int_temp = ds18b20_getTempC(intTempSensorAdr);
    ESP_LOGI("READ_TEMPS","Internal temp: %.1f",int_temp);

#ifdef MQTT_ENABLED
    sprintf(txt,"%.1f",int_temp);
    sendMQTTMessage("basement/boiler/controllerTemp", txt);
#endif




}





#endif