keypad 4x3 and pic18 with c

darkxp · Mar 23, 2004

keypad 4x3

Hi, im new at this pic world!

I would like to know how to use my keypad 4*3 (x1x2x3x4,y1y2y3) on my pic 18f, with 4 wires, or less, in c++ ... its for a college project, and its hard for me understand this... YET!

Hehe, thnx in advance!

C-Man · Mar 23, 2004

c18 keypad

You can get some ideas here:

**broken link removed** (look on page 3)
http://www.discovercircuits.com/K/keypad.htm

best regards

dingding123 · Mar 23, 2004

pic18f keypad

You can use some HC273 HC139 and HC244 to
expand I/O interface.

darkxp · Mar 24, 2004

pic18 keypad

some nice... but only for ASM

i need in C....

**broken link removed**

this would be nice, like the one i want to implement: 7 pins, connected to the portb of the pic18, but how to know the key pressed?!

thnx in advance

halabat · Mar 24, 2004

pic18f4620 keypad

Look for CCS Compiler, there is a evaluation version with a lot of examples like this. Look at www.ccsinfo.com

Bye, Halabat.

bouteljea · Mar 25, 2004

pic18f with keypad project

Microchip has a 30 day demo of C18 (functionally not limited), their c compiler for the 18 range pics. I do recommend C18.

keypad 4x3 and pic18 with c

darkxp

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C-Man

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dingding123

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halabat

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keypad 4x3 and pic18 with c

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