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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
So it's not stable at one voltage?
If that particular pin of the LCD display does what you want, I'd just use that. When that part of the LCD shouldn't be lit, do you end up with nothing on the signal line? Or is it always the same waveform displayed regardless of the weight on the scale?