Im building a pavillion. In the four corners of the pavillion there will be a copper handle.
If two visitors go into the pavillion and hold the handles with their hands and than touch each others hands the arduino should sense that the two handles are connected.
4 handles makes 6 combinations.
If 3 people connect 3 handles there are 6 more combination.
If 4 people connect all of the handles we get the the 13th combination.
For each combination the Arduino should send a MIDI a midi note and when the combinations is broken it should send a MIDI off note.
I want a potentiometer to be able to control the threshold of the sensing.