instructions for an ATtiny85 to go to sleep to save power between button pushes. And, such is the neat constriction of xn1ch1’s code, this proved straight forward – you will have to check the original ...

The OONTZ uses a 3D printed case, a 16 button keypad, an Arduino Leonardo, a monochrome driver, and a few potentiometers. It's actually a pretty simple thing to build yourself provided you can the ...