by

|   March  4, 2009 at 2:59 PM

Looking at the top of the board, the pinout from left to right is:
No connection
Column 1
Row 0
Column 0
Row 3
Column 2
Row 2
Row 1
No connection

by

|   April  9, 2009 at 10:04 AM

Has anybody found a ready-made case for this (or similar keypad)? It's pretty labor-intensive making the case from scratch.

by

|   June 14, 2009 at 8:27 AM

Hello all,

I've just bought one keyPad for connect this to Arduino. Well, after having many problems, I have tested all the combinations with the pins, and i think that my KeyPad is not working properly, the problem is that my rows 1 and 2 doesn't respond to no keys pressed.

Have anyone had this type of problem.

My tests with a continuity tester has been the folowing


KeyPad
col 0 3
col 1 1
col 2 5
row 0 2
row 1 7
row 2 6
row 3 4

I undestand that when a press the '4 key, I'll have a closed circuit between 3 and 7 pins of keypad, doesn't it.

Can Help me anyone.
Thanks.

by

|   August 25, 2009 at 9:24 AM

here is the datasheet

http://sycelectronica.com.ar/electromecanicos/TECLA-TELEF.pdf

by

|   September  6, 2009 at 12:19 AM

I got one of these from www.allelectronics.com, but I had to pay $4.50 more there, although the design was admittedly better quality than this one.

by

|   September  6, 2009 at 4:17 PM

ive had no problems so far working with this keypad.
ive hooked it to a picaxe-14M which decodes the keypad and then sends the pressed key to my arduino through a Xbee link. i havent had a single time that a button did not respond so im very happy with this little cheap keypad.

by

|   December 15, 2009 at 2:17 PM

For anyone needing it you can follow the Keypad tutorial and get the library here: http://www.arduino.cc/playground/Code/Keypad

And if you want to use the example sketch they provide on the page you would connect the keypad as follows

Looking at the top of the keypad (key side) with the pins at the bottom from left to right you have pins 1-9 with pins 1 and 9 being null (not connected)

Ard - Keypad
2 - 5
3 - 7
4 - 8
5 - 3
6 - 6
7 - 2
8 - 4