jeans/Tasmota
jeans/Tasmota
1
0
Fork 0
mirror of https://github.com/arendst/Tasmota.git synced 2025-07-23 10:46:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #16667 from barbudor/analod_temp_alternate

Browse Source 
Alternate ADC_TEMP mode
This commit is contained in:
Theo Arends 2022-09-27 15:05:26 +02:00 committed by GitHub
commit aacc0084ae
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
tasmota/tasmota_xsns_sensor/xsns_02_analog.ino
View File

@ -45,10 +45,14 @@
#define ANALOG_V33 3.3 // ESP8266 / ESP32 Analog voltage
#define ANALOG_T0 TO_KELVIN(25.0) // 25 degrees Celsius in Kelvin (= 298.15)
// Shelly 2.5 NTC Thermistor
// Mode 0 : Shelly 2.5 NTC Thermistor
// 3V3 --- ANALOG_NTC_BRIDGE_RESISTANCE ---v--- NTC --- Gnd
// |
// ADC0
// Mode 1 : NTC towards 3V3 (Sinilink Thermostat Relay Board (XY-WFT1)
// 3V3 --- NTC ---v--- ANALOG_NTC_BRIDGE_RESISTANCE --- Gnd
// |
// 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
@ -203,6 +207,7 @@ void AdcInitParams(uint8_t idx) {
Adc[idx].param1 = ANALOG_NTC_BRIDGE_RESISTANCE;
Adc[idx].param2 = ANALOG_NTC_RESISTANCE;
Adc[idx].param3 = ANALOG_NTC_B_COEFFICIENT * 10000;
Adc[idx].param4 = 0; // Default to Shelly mode with NTC towards GND
}
else if (ADC_LIGHT == Adc[idx].type) {
Adc[idx].param1 = ANALOG_LDR_BRIDGE_RESISTANCE;
@ -496,6 +501,9 @@ 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;
}
#ifdef ESP8266
double Rt = (adc * Adc[idx].param1) / (ANALOG_RANGE * ANALOG_V33 - (double)adc); // Shelly param1 = 32000 (ANALOG_NTC_BRIDGE_RESISTANCE)
#else
@ -710,7 +718,8 @@ void CmndAdcParam(void) {
AdcGetSettings(idx);
if (ArgC() > 3) { // Process parameter entry
char argument[XdrvMailbox.data_len];
// AdcParam 2, 32000, 10000, 3350
// AdcParam 2, 32000, 10000, 3350 ADC_TEMP Shelly mode
// AdcParam 2, 32000, 10000, 3350, 1 ADC_TEMP Alternate mode
// AdcParam 3, 10000, 12518931, -1.405
// AdcParam 4, 128, 0, 0
// AdcParam 5, 128, 0, 0
@ -725,6 +734,12 @@ void CmndAdcParam(void) {
Adc[idx].param4 = abs(strtol(ArgV(argument, 5), nullptr, 10));
} else {
Adc[idx].param3 = (int)(CharToFloat(ArgV(argument, 4)) * 10000);
if (ArgC() > 4) {
Adc[idx].param4 = (int)(CharToFloat(ArgV(argument, 5)) * 10000);
}
else{
Adc[idx].param4 = 0;
}
}
if (ADC_PH == XdrvMailbox.payload) {
float phLow = CharToFloat(ArgV(argument, 2));