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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Perka
Now I have tried my Heltecs and I cant get them to work. Shorted pins 19-20 on one of them, and Im using 4k7 pull up resistors on SCL and SDA. Tried both 3.3V and 5V. I get "Uncaught InternalError: Timeout on I2C Write BUSY".
The screens works great with an Arduino.