Keypad Interfacing

[uaf5000]

Hello guys.

Ive to interface a 12 keys keypad into with my PIC microcontroller (PIC 16f877a). With the help of this keypad i want to control my LCD display which is already being attached with the microcontroller. Please help me with that. I need the circuit diagram as well as guideline on how to program the PIC too.

Thanks

[mackrackit]

This is for a 4x4 but it should get you started.
http://www.picbasic.co.uk/forum/showthread.php?t=3250

[circuitpro]

You can also see the schematic and sample pbp files for the LAB-X1 development board. Both are at www.melabs.com.

[uaf5000]

Thanks guys. Will get back to you after referring all the links.

[uaf5000]

Can i have the link of the manual from where i can read and know more about basic keypad commands (defines,routines etc.)?

[mackrackit]

I did not know there was a manual for keypads?
You can have them on a port or two and then read the port(s) or use a shift register and read that.

Not much more to it.