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.
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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. |
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A
bottom view of the Switch Board, there are no track cuts, and no
wire links. |
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