ESP32 GPIO ADC Channel Error

Thr 2019.07.18

Hello @ukaton and welcome to the world of Espruino! Over time, I believe you will find the shortened debug times with Espruino will far surpass that of Arduino development. Thank you for posting your code.

I'm not an ESP32 wiz, but the code appears to be attempting to read using an analog read on every pin.

Is it possible that the pins attempted to be read should be using digitalRead() ?

Heading DESCRIPTION 'However only pins connected to an ADC will work (see the datasheet)'
http://www.espruino.com/Reference#l__global_analogRead

http://www.espruino.com/Reference#l__global_digitalRead
http://www.espruino.com/Reference#l__global_getPinMode

It should be possible to determine either using the source:

https://github.com/espruino/Espruino/blob/master/boards/ESP32.py

See note on line L135   unknown if that is significant

Curiosity got the better of me, what is the GPIO config for ESP32?

https://randomnerdtutorials.com/esp32-pinout-reference-gpios/

This link may be needed also

http://www.espruino.com/Software+PWM