Problems connecting a PICOFAB 4x4 keypad to the LK204-25PC

[kraftm]

I have a small problem with the 4x4 keypad. I'm assuming that the white dot on the 8pin connector is pin 1, so it is connected the corresponding position on the LCD. But I am only able to use 12 of the 16 buttons. Here's how that lays out currently:

N x D I <- as you can see the "x"
M x C H buttons do not work. The
L x B G others default to the given
K x A F Alpha character.

Is there any way to fix this (such as my connector is backwards)? Or do I have bad hardware (LCD or Keypad?).

Thanks much,
Mark Kraft

[Henry]

Middle out on the keypad header... you should have pins left over on the left and right side.

[Cheese]

You have to center the keypad connector on the header, so if you're plugging an 8 pin keypad header into a 10 pin keypad header you miss out the first and last pin, not the last 2 if you see what I mean.

Cheers,

r.

[Cheese]

Oh I hate you henry

r.

[kraftm]

Thanks guys... I'll try that as soon as I get home. What should the character layout be when I set it up that way?

A F K P
B G L Q
C H M R
D I N S

That look right???

Thanx,
Mark Kraft

[Cheese]

Nope.

http://www.matrixorbital.com/manuals/ac ... /index.htm

section 4.2

r.

[kraftm]

Thanks... RTFM! Next time I will actually look at the manual before I ask a stupid question.

Got it working, now I just need to decide whether to mount the keypad permanently (with backing) or to keep using sticky tape. I haven't decided if my wooden mounting will be my final design.

Thanks again,
Mark K.

[Henry]

There are a few pics of the keypad mounted in the forum... one person mounted on the front of the case, it's probably one of the older posts.