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adc_temp alternate mode, take 2

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Barbudor 2022-09-27 23:05:53 +02:00
parent 8d436ff910
commit e9922b0b13
1 changed files with 11 additions and 5 deletions
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16
tasmota/tasmota_xsns_sensor/xsns_02_analog.ino
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@ -501,13 +501,19 @@ void AdcEverySecond(void) {
// double Rt = (adc * Adc[idx].param1 * MAX_ADC_V) / (ANALOG_RANGE * ANALOG_V33 - (double)adc * MAX_ADC_V);
// MAX_ADC_V in ESP8266 is 1
// MAX_ADC_V in ESP32 is 3.3
if (Adc[idx].param4) { // Alternate mode
adc = ANALOG_RANGE - adc;
}
double Rt;
#ifdef ESP8266
double Rt = (adc * Adc[idx].param1) / (ANALOG_RANGE * ANALOG_V33 - (double)adc); // Shelly param1 = 32000 (ANALOG_NTC_BRIDGE_RESISTANCE)
if (Adc[idx].param4) { // Alternate mode
Rt = (double)Adc[idx].param1 * (ANALOG_RANGE * ANALOG_V33 - (double)adc) / (double)adc;
} else {
Rt = (double)Adc[idx].param1 * (double)adc / (ANALOG_RANGE * ANALOG_V33 - (double)adc);
}
#else
double Rt = (adc * Adc[idx].param1) / (ANALOG_RANGE - (double)adc);
if (Adc[idx].param4) { // Alternate mode
Rt = (double)Adc[idx].param1 * (ANALOG_RANGE - (double)adc) / (double)adc;
} else {
Rt = (double)Adc[idx].param1 * (double)adc / (ANALOG_RANGE - (double)adc);
}
#endif
double BC = (double)Adc[idx].param3 / 10000; // Shelly param3 = 3350 (ANALOG_NTC_B_COEFFICIENT)
double T = BC / (BC / ANALOG_T0 + TaylorLog(Rt / (double)Adc[idx].param2)); // Shelly param2 = 10000 (ANALOG_NTC_RESISTANCE)