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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
Glad something is happening now!
Try
analogWrite(A7, 0.5, {freq:40000});instead ofanalogWrite(A7, 0.5);- that'll shift the base frequency for the PWM above the audible range, which should improve the quality and also remove the tone