Hello all – I’m working on a project, (using arduino mini pro) creating a touch sensor that modulates tones that are played. My setup is super basic, I’m running power from VCC through a 1Mohm potentiometer. The output of that potentiometer connects to one side of a 1Mohm resistor, and the other side of that resistor connects to Analog pin 0. Also connected to the A0 side of resistor is a wire that leads to a plant, this is the touch sensor.
I attached some images to clarify if this /\ is confusing
I’ve found that when I daisy chain the 1M-ohm resistors, about 5 in a row, the touch sensor is more sensitive - so I went out and got a single 10M-ohm resistor. I don’t know much about electronics, I’m learning as I’m going, but have read that high resistance creates heat - and am wondering if 10M-ohms of resistance between VCC and Analog pin 0 on the Arduino Mini Pro could damage it or put too much strain on it?
Appreciate any words of advice you can offer, thanks!