C.ITOH CIT324/324E - Alps Buckling Springs... (Conversion to USB?)

Well I might put this project on ice until I'm able to get my hands on a working CIT324 terminal (long shot) or another keyboard to do my "please help me out" raffle idea (also long shot). If anyone is interested in taking a crack at it, I'd be happy to ship out this keyboard provided I'd get it back eventually.

Before I go that route I did want to check one more thing. So far I've been doing all these experiments with the keyboard hooked up to the TX pin on the teensy. Is there any potential problem with doing that if the interface is bidirectional? Is it possible that having it hooked up to TX is inhibiting communications in some way?

inb4 the weekend comes and burn yet another day trying to talk to the dead :lol:
snacksthecat
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Unread post18 May 2018, 00:40

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yeah I could see that mess it up, maybe. But since we really don't know for sure what the physical interface it using, just guesses, it is really hard to tell. Have you confirmed that there are no extra key presses? Being able to send some commands to the keyboard leds is promising, but not conclusive. It could be using that interesting single wire protocol, in which case I don't think the teensy or salece would pick it up properly without building out the single wire split circuit, level shifting back and running it back to two I/O. One thing is pretty clear and that it is not STD fair for a keyboard, Interesting on quite a few levels. I would have a crack at it but US->AU shipping is not kind.
zool

Unread post18 May 2018, 13:22

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zool wrote: Have you confirmed that there are no extra key presses?

Yes, I'm 99% sure there are no key presses because even if I detach the membrane it behaves exactly the same.

Well I've clearly lost my mind because I just purchased a CIT326 terminal in hopes that it's compatible (and in hopes that it is resellable)

If this doesn't work out and you're serious about giving it a go zool, I'm sending you the board. Shipping both ways is on me.

THIS IS FREAKING BOARD IS MY EVEREST :lol:
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Unread postYesterday, 01:28

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snacksthecat wrote:
zool wrote: Have you confirmed that there are no extra key presses?

Yes, I'm 99% sure there are no key presses because even if I detach the membrane it behaves exactly the same.

Well I've clearly lost my mind because I just purchased a CIT326 terminal in hopes that it's compatible (and in hopes that it is resellable)

If this doesn't work out and you're serious about giving it a go zool, I'm sending you the board. Shipping both ways is on me.

THIS IS FREAKING BOARD IS MY EVEREST :lol:

Oh My! Keep on climbing! With a paired terminal, I think you have a good chance at reaching the peak(you will have a Sherpa with you).

But yes, I'm serious, but not until you are exhausted and grasping for breath. :)
zool

Unread postYesterday, 01:53

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