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I was actually quite suprised how hard it is. The amount of different LCD and subsequent separated driver panels that are possible in configuration is absolutely huge. To be honest I am a lot less worried about LCD working then keyboard, since in the worst case I would need to rewire the whole one manually. But for LCD I will hopefully have everything needed after getting my specific LVDS driver board

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A mapping for the keyboard matrix can be "discovered" by pressing all keys in sequence. There are lots of AVR-based projects that emulate an USB HID for a custom keyboard matrix or other input; for an example, see [1][2].

[1] https://deskthority.net/wiki/Easy_AVR_USB_Keyboard_Firmware

[2] https://geekhack.org/index.php?topic=51252.0

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