I’m working a project that needs to sense vibration in a guitar string and send the value to an Arduino program through AnalogIn. Pitch is not needed as I’m using this pickup to create a velocity MIDI command… currently, the pickup generates an AC signal from -1V to 1V and I need to somehow scale that and shift it into something detectable by Arduino. I know I’ll have to make an op-amp amplifier circuit which I can handle, I’m just not sure how convert this from AC to DC.
Any suggestions? Help would be much appreciated. Thanks!