Recently used code with Wireless Stick (which has display) and had accurate voltage reading through switching Vext pin and making measurements on adc pin #37.
Uploaded the same code to wireless stick lite and now the batt voltage always around 4.44V which incorrect. ADC returns value around 1504. Probably it has a different resistor for the voltage divider.
What are the correct values for ADC read with this board when using standard 3.7v lipo (fully charged to 4.2v)?
With wireless stick or lora32 I use following ADC values to determine full and drained battery: 1420 (4.2v) and 1080 (3.2v).
Thanks in advance.