PIC Tutorial - Keypad Board

Keypad Board

This is the Keypad Board, a very simple board for connecting a matrix keypad. It consisted of only 4 resistors (used as pull-ups for the input lines), and two connectors - one to the processor board, and the other for the keypad to plug into, I used half a 16 pin DIL socket for this. Although it's labelled as connecting to PortB, it can also be connected to PortA if required.

This is a top view of the Keypad Board, it consists of just four pull-up resistors and two sockets, it uses a piece of Veroboard 10 strips wide by 9 holes high.
A bottom view of the Switch Board, there are no track cuts, and no wire links.

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