mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #16702 from barbudor/fix-adc_temp-alternate-mode 

Fix ADC_temp alternate mode
This commit is contained in:
Theo Arends 2022-10-01 10:18:18 +02:00 committed by GitHub
parent 0ec8b47741 7c258f4de1
commit b63da8fd0f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
tasmota/tasmota_xsns_sensor/xsns_02_analog.ino
View File

@ -51,8 +51,8 @@
// ADC0
// Mode 1 : NTC towards 3V3 (Sinilink Thermostat Relay Board (XY-WFT1)
// 3V3 --- NTC ---v--- ANALOG_NTC_BRIDGE_RESISTANCE --- Gnd
// |
// ADC0
// |
// ADC0
#define ANALOG_NTC_BRIDGE_RESISTANCE 32000 // NTC Voltage bridge resistor
#define ANALOG_NTC_RESISTANCE 10000 // NTC Resistance
#define ANALOG_NTC_B_COEFFICIENT 3350 // NTC Beta Coefficient
@ -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)
@ -825,7 +831,7 @@ void CmndAdcParam(void) {
}
char param3[33];
dtostrfd(((double)Adc[idx].param3)/10000, precision, param3);
ResponseAppend_P(PSTR(",%s"), param3);
ResponseAppend_P(PSTR(",%s,%d"), param3, Adc[idx].param4);
}
ResponseAppend_P(PSTR("]}"));
}