I'm wondering how to measure the LiPo voltage using a Lolin's D32. ...


I used this code, I'm not sure if it is correct or not.

void loop()
{

int ADC_VALUE = analogRead(35);
Serial.print("ADC VALUE = ");
Serial.println(ADC_VALUE);
int adc_percentage = int(100 * ADC_VALUE / 4095);
//delay ...