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Topic: Sparkfun 3x4 keypad (Read 1 time) previous topic - next topic

SubMicro

Can someone post a pic of how they hooked up this keypad or explain how to hook it to an arduino?

http://www.sparkfun.com/commerce/product_info.php?products_id=8653

SubMicro
Electronics newbie & Home Machinist

MikMo

#1
Nov 30, 2009, 07:40 pm Last Edit: Nov 30, 2009, 07:47 pm by MikMo Reason: 1
http://www.arduino.cc/playground/Main/KeypadTutorial

also see first comment on the product page:

http://www.sparkfun.com/commerce/product_info.php?products_id=8653

it tells you which pins are the rows and which are the coloumns

SubMicro

Actually it's confusing as h$ll !

I went and bought a new DVM because of the readings I was getting, but it turns out I get the same readings with the new one!
According to SparkFun it doesn't have the typical Row Col setup.
Which pins require the pull up's ? which pins are col & rows?
The tutorial isn't meant for a 7 pin setup.

Confused as usual
SubMicro
SubMicro
Electronics newbie & Home Machinist

Tw34kd

#3
Dec 01, 2009, 12:40 am Last Edit: Dec 01, 2009, 04:48 am by tweakd Reason: 1
I easily found the pinout with a pen, sheet of paper, and a multimeter/testlight took maybe 10 min.

         P

1 2 3   2
4 5 6   7
7 8 9   6
* 0 #   4

3 1 5  

pinout found by following steps on http://www.arduino.cc/playground/Main/KeypadTutorial

SubMicro

Well hmm maybe i'm doing it wrong then, I'll try again.
SubMicro
Electronics newbie & Home Machinist

Tw34kd

Did my lil diagram work for you?  :D

SubMicro

I just finished rewiring it tonight and yes hooray! ;D thanks a bunch. Now on to my next problem.....

Thanx again
SubMicro
SubMicro
Electronics newbie & Home Machinist

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