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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.
@cwilt
I just tried to flash my new pico with this firmware and while everything says it loaded fine when I plug it back into my macbook pro the red led stays on and the serial port no longer shows up. I can flash back to 1.80 and everything is fine.
Update:
Figured it out.