CCS :: View topic - Code for a 4x4 keypad using a pic 18f452

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Code for a 4x4 keypad using a pic 18f452

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neil26

Joined: 02 Oct 2012
Posts: 1
Location: port of spain

Code for a 4x4 keypad using a pic 18f452
Posted: Mon Nov 05, 2012 9:43 am

Hi Everybody, I would like if anyone can post a simple code for a 4X4 KEY PROGRAMMER using a PIC 18F452. ALL THE BEST NEIL _________________ NH

Mike Walne

Joined: 19 Feb 2004
Posts: 1785
Location: Boston Spa UK


Posted: Mon Nov 05, 2012 9:52 am

Can you start from the CCS supplied kbd.c and expand it? Mike

newguy

Joined: 24 Jun 2004
Posts: 1906


Posted: Mon Nov 05, 2012 9:55 am

http://www.ccsinfo.com/forum/viewtopic.php?t=19726

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Mon Nov 05, 2012 7:48 pm

Reply with quote

Quote:

I would like if anyone can post a simple code for a 4X4

Also look here for a 4x4 keypad driver:
http://www.ccsinfo.com/forum/viewtopic.php?t=28022&start=14

Remember to put 10K pullup resistors on the row pins. Or, if you are
using the keypad on PortB, then you can enable the PortB pullups in the
PIC and that will work.

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