ABC Atmel AVR Mini Board Keypad Module

The ABC Atmel AVR Mini Board can be expanded into a very flexible development and training system using various add-on boards available. All of the ABC add-on boards are designed to be connected with the ABC Atmel AVR Mini Board via the Hotchip Motherboard Module.

This pre-assembled keypad PCB has 16 keys arranged as a 4 x 4 matrix with series diodes in the row drive lines and pull-up resistors on the column sense lines.

The columns are brought to one box header and the rows to the other. These are indicated on the keypad PCB overlay.