Keypad to Serial Converter Kit for Matrix Button Pads

Keypad to Serial Converter Kit for Matrix Button Pads

This great little board is supplied as a kit, with the PCB, Capacitor, Headers & a Chip programmed with the code, ready to go. Once you have assembled the kit, connecting up a keypad like our 3x4 membrane matrix keypad. will give a character output at 9600 BAUD when a key is pressed.
The keys do not auto-repeat, making key entry easier.

Key output from a 4x4 matrix keypad:

1  2  3  A
4  5  6  B
7  8  9  C
*  0  #  D
When using a 3x4 matrix keypad, simply ignore the right-hand column.