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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.
@intern
Hi there,
I am planning to use the Puck's GPIO pin to detect if a switch is open (it will be closed most of the time), however I was wondering if the GPIO pin mode will affect the battery drain? My original idea is to connect the switch to both a GPIO pin (as input, pull down) and the 3V pin. But is there a better design that will save more power?
Thanks.