deskthority

Will do, I'm replacing all the internals with new parts. I have a 10" LCD, Raspberry Pi B+ / 2, or an Odroid C1, not sure which yet, to go inside. Plus of course all the power circuits and a LiPo.

The keyboard was the only bit I didn't know how to do, until now

Super fantastic Success, it works!

Turning the matrix around fixed it. Here's the config file as it is now having been transposed.

# Matrix config for ICL NB386S keyboard.
# http://deskthority.net/workshop-f7/help-with-1990s-laptop-keyboard-t9726.html

matrix
scanrate 1
debounce 5

sense PF0 ...

I've left the workshop for the rest of the weekend. I'll have a crack at it tomorrow and see what's what. I like the douns of transposing the matrix. I'll give that a go first.....

Thanks for the help

I have just done some more probing with a meter and it seems all the rows are connected together. I also probed between pin 12 (PB4) and Pin 16 (PF6). The keypress does not register with the positive probe on pin 12 and the negative on pin 16, but swap the probes around with positive on pin 16 and ...

How can I fix the polarity? Turn the diodes around?

First off the white keys are clicky and the yellow are linear :)

Secondly I have rewired the keyboard and teensy together, and edited the configfile.

matrix
scanrate 1
debounce 5

sense PC6 PD3 PD2 PD1 PD0 PB7 PB3 PB2 PB1 PB0 PD7 PB4
strobe PB5 LALT UNASSIGNED ESC BACKSLASH BACK_QUOTE F6 F5 ...

Ah ok. I shall have a play again tomorrow and report back.....

I have two of the keyboards if some poking around inside the keys is required.

Can you expand on 'clicky' they all feel pretty much the same to press.

Ah ok, I knew it would be something simple!

I'll have to carry on tomorrow and report back........

Err Nope, all I've done is upload the firmware, and then send the kevex.blank file to the teensy via scaswr.bat

This is what I am asking about....

I'm using the kevex-blank file that comes as part of the archive. I have hid_listen.exe open listening for keypresses so Ic an build the matrix.

# Blank matrix config for kevex ray 7000CM
# All keys UNASSIGNED to allow hid_listen output to be used to figure out the layout.
# http://geekhack.org ...

So I have been doing some poking around and it would seem that the teensy is only recognising a few of the inputs even though the key-presses are happening.

Do the pins need to be enabled, or anything similar?

I've dug out a photo of the keys...
I'm going to undo the wiring I have done and reconnect it a row and column at a time and make sure it works with each new connection....

I presume so. I have some photos from when I took it all apart but they are on my workshop pc and I can't get at them until Monday.

Progress, of sorts..

I have the matrix detection working and everything has flashed to the teensy.

hid_listen seems to only pick up four key presses G, H, T & Y the rest don't seem to do anything.

T = \4E /4E
Y = \06 /06
G = \4D /4D
H = \05 /05

I took out a pair of resistor arrays when I was ...

Thanks,

I'll have a crack at it over the weekend

I have read through quite a bit of documentation relating to the mechanical side and the wiring and avoiding the LED was a common point

I'm still scratching my head over the software side of things though.....

Thank you sir,

I shall keep the thread updated......

Hi,

I have a pair of old ICL NB386S laptops circa 1992 and I have managed to cobble together a single working machine from the pair. I wanted to cram a single-board-computer such as a raspberry pi and an lcd into the case of the non-functioning laptop and naturally I want to use the original ...