Looking for possible designs for a musical instrument I’ve had in mind for a while, I found this very interesting paper:
The design seems incredible simple, and from what I understand the resistive ink could be replaced by Velostat. Now, the only thing I don’t know how to implement is this: to prevent leaking between tracks, while one is being driven (connected to +5v) the rest are connected to ground.
I know how to succesively drive the tracks: with a multiplexer. But how would I simultaneously connect the rest to ground? Would I need a switch for each track?