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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.
@lavamantis
The heater is a light bulb (12V, 20 watts), and the power source is a 6V battery pack of 4 AA batteries.
Ah yes, after careful re-reading it does seem to "stay on" until you interrupt the power supply. That's not as useful as I thought.
Thanks.