PIN 36 not ADC PIN

[helios78]

Model: 4.7-S3 , V2.3

[ 16458][E][esp32-hal-adc.c:158] __analogRead(): Pin 36 is not ADC pin!

This comes on serial when it tries to read the battery voltage

The board would only work when connected and powered by USB-C from computer

It will not work via battery or USB-C via charger

[StaRipper]

Same here.

I saw #4 (comment) and esphome/feature-requests#1960 (comment) and https://github.com/kaeltis/esphome-lilygo-t547plus/blob/main/components/lilygo_t5_47_battery/Lilygot547Battery.cpp

The parameters are :

#if CONFIG_IDF_TARGET_ESP32
const uint8_t bat_adc_pin = 36;
#else
const uint8_t bat_adc_pin = 14;
#endiff
float voltage = analogRead(bat_adc_pin) / 4096.0 * 6.566 * (vref / 1000.0);

I changed it to ...

#if CONFIG_IDF_TARGET_ESP32
const uint8_t bat_adc_pin = 14;
#else
const uint8_t bat_adc_pin = 14;
#endif
float voltage = analogRead(bat_adc_pin) / 4096.0 * 6.566 * (vref / 1000.0);

Did not solve the problem.