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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.
@Spocki
Is there a strict limitation to 3.0V or does the puck accept other batteries, ie 3.2V (LiFePo4) or 3.7V (LiPo)? And what is the maximum GPIO output power?