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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
This is for a 4x4 but it should get you started.
http://www.picbasic.co.uk/forum/showthread.php?t=3250
You can also see the schematic and sample pbp files for the LAB-X1 development board. Both are at www.melabs.com.
Thanks guys. Will get back to you after referring all the links.
Can i have the link of the manual from where i can read and know more about basic keypad commands (defines,routines etc.)?
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.