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Tutorial 6 - Help with interfacing a keypad

Posted: Sun May 15, 2011 4:54 pm
by Fluroblue
im using my keypad now and ive finished it. a problem ive come across is that when i press the buttons its not matching, i wasnt sure how the connections from the keypad to the board went so i just put lined them up like in the schematic, so i think thats the problem. so if you guys know plz tell :)







(Edited - I have moved this post here to give it it's own topic. bitfogav)

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Sun May 15, 2011 9:18 pm
by bitfogav
Hi Fluroblue,

Sounds to me that you connected your keypad incorrectly, heres some diagrams which might help you connect up the keypad correctly :)

Hope this Helps.
3x4keypad.jpg
3x4keypad.jpg (36.29 KiB) Viewed 12289 times

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Sun May 15, 2011 10:06 pm
by Fluroblue
Brilliant! it works thanks for that!

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Mon May 16, 2011 9:56 am
by brad
Nice work bitfogav!

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Sun Jul 01, 2012 11:49 am
by nodoubtman
Hi! I have bought this keypad : http://www.abra-electronics.com/product ... rrencyId=2

it got 8 pins, i cannot find the datasheet, someone can help me with these pins according to brad tutorial?

thanks a bunch!
marC:)

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Sun Jul 01, 2012 5:21 pm
by brad
I just did a google search for keypad pinout and it had this image. It could be what you need.

Image

(Image from http://talkingelectronics.com/pay/PIC/PIC-Page21.html)

Re: Tutorial 6 - Help with interfacing a keypad

Posted: Mon Jul 02, 2012 12:23 am
by nodoubtman
brad wrote:I just did a google search for keypad pinout and it had this image. It could be what you need.

Image

(Image from http://talkingelectronics.com/pay/PIC/PIC-Page21.html)
thank you so much brad! i will let you know how it goes :)

thanks!
marC:)