The value of a mirror is in its clarity. If the reflection is cast by [danicakostic17]’s Uncooperative Mirror though, you’ll find anything but. It’s described as a useless machine, because it appears ...

Blocking or non-blocking read; Supports any number of rows and columns; User defined key mapping; prevents reading the same event twice. A matrix keypad will have some pins or wires that you have to ...