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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.
@Gordon
Ok, so the battery definitely goes to Bat, but the PIRs and EEPROM are connected to 3.3v?
Maybe check the 3.3v line and see what voltage is on it? If the batteries are NiCd then they'll be 1.2v, so 3.6v total, which may not be enough headroom to get reliable 3.3v....