- Make an LED turn on when a person touches two conductive pads (e.g. two square of aluminum foil)
- Make the RGB LED change color depending on how hard the pads are squeezed. I will figure out the color algorithm later. For now I just need to be able to sense variable conductivity/capacitance/current (one of those?).
I have an Arduino LilyPad. I know this can be done because I've seen it before (just don't remember the code or circuit). Example image:
I know the human body is conductive, so I'm not quite sure why the LED won't go on when I contact the conductive pads. My only hypothesis is that the resistance is too high, but that must mean some current is going through, no?