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Keypad Documentation Error — Parallax Forums

Keypad Documentation Error

Ron CzapalaRon Czapala Posts: 2,418
edited 2011-04-15 04:43 in General Discussion
The 4x4 Matrix Membrane Keypad (#27899) documentation diagram showing the cable pins in relation to the rows and columns is incorrect (assuming that the pin numbers are numbered left to right.

I used a Volt Ohm meter and found that image should actually look like the one below
(numbered 8 to 1 rather than 1 to 8).

This also agrees with the BS2 demo program comments

Keypad.jpg
BS2_Comments.jpg

506 x 609 - 46K
1024 x 486 - 40K

Comments

  • Ken GraceyKen Gracey Posts: 7,401
    edited 2011-04-14 19:43
    Nice find, Ron. We'll look into this right away. I'll report the problem to the internal Product Owner.

    Thanks again, Ken Gracey
  • Jessica UelmenJessica Uelmen Posts: 490
    edited 2011-04-14 20:09
    Thanks Ron, I was drawing the diagram from the back of the keypad, and obviously forgot to reverse the pins. >.<

    I've updated the doc and it should be on the web sometime tomorrow.

    Cheers,
    Jessica
  • Ron CzapalaRon Czapala Posts: 2,418
    edited 2011-04-15 04:43
    Jessica,
    I thought that might be the case. Glad I could help!
    - Ron
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