I saw a project on a blog post where someone replaced board in an old Compaq keyboard with a teensy++2.0 (https://hackaday.com/2020/06/19/vintage-keyboard-gets-the-qmk-treatment/), but there is no much info on how it was done.
I noticed that the board on that keyboard is similar to one in my old Compaq keyboard.
One from linked project:
Mine:
My keyboard is Compaq Internet Keyboard - model sdm4540ul and there is a set of keys that doesn't work in any OS I have tried it and thought that being able to attach a teensy there would allow me to flash a qmk firmware and make those keys work again.
My guess is that I would desolder my chip and solder teensy++2.0 on the place of it since all leads from ribbon cable socket lead there?
Another guess is since there are 2 ribbon cables that I could somehow solder only the smaller one (that is the one that controls the set of keys that don't work) to teensy and then only write a firmware for those?
Do you have any guide where something similar is done that I could follow or could you tell me if my guesses are correct?
Thank you all!
I noticed that the board on that keyboard is similar to one in my old Compaq keyboard.
One from linked project:
Mine:
My keyboard is Compaq Internet Keyboard - model sdm4540ul and there is a set of keys that doesn't work in any OS I have tried it and thought that being able to attach a teensy there would allow me to flash a qmk firmware and make those keys work again.
My guess is that I would desolder my chip and solder teensy++2.0 on the place of it since all leads from ribbon cable socket lead there?
Another guess is since there are 2 ribbon cables that I could somehow solder only the smaller one (that is the one that controls the set of keys that don't work) to teensy and then only write a firmware for those?
Do you have any guide where something similar is done that I could follow or could you tell me if my guesses are correct?
Thank you all!
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