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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.
@rmd6502
@Robin lol yeah, it's a xbee serial adapter with a linear regulator built in, but you're right, I should double check that the 3.3v switch is actually delivering 3.3v and not 5 - I should have thought of that immediately. I'll try powering it off a coin cell also, I bet the heat problem will completely go away.