It also works as a servicable conductive paint, which [Alex] used to make this baked good into a musical device. The basis of the device is a basic audio example sketch running on an Adafruit ...

[Jan Mrázek] is a pro when it comes to rolling his own PCBs. He can crank out a ... The key here is to make a non-conductive surface—the walls of holes drilled in a sheet of copper clad ...