Analog Temp on Wemos D1

[lalo-uy]

As states in the Analog driver there are 2 posible configuration :

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

But Wemos D1 have a divisor in the analog pin, so the circuit is:
3V3 --- ANALOG_NTC_BRIDGE_RESISTANCE ---v--- NTC --- Gnd
|
220K
| _____ 100K______Gnd
|
ADC0

In that situation line 533
Rt = (double)Adc[idx].param1 * (double)adc / (ANALOG_RANGE * ANALOG_V33 - (double)adc);

need to be:
Rt = (double)Adc[idx].param1 * (double)adc / (ANALOG_RANGE - (double)adc);

as in ESP32.
I tested on a personal firmware and works OK

[Duvio]

I just encountered the same problem. Would you mind creating a corresponding issue?

[lalo-uy]

I don’t know how to make a PR. And a new define has to be created just for WEMOSD1