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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.
@allObjects
I'm not sure if Puck is freezer safe / savy... for sure the battery will not enjoy much life in −18 °C, respective 0 °F (temperature assumed in food safety / expiration date definition). Having a remote sensor (inside) or a remote battery (outside) could help here...