Author Topic: TKL Keyboard - help needed!  (Read 262 times)

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Offline Mcube728

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TKL Keyboard - help needed!
« on: Sun, 17 September 2023, 14:52:20 »
Hello Everyone!

I got an cheap old mechanical keyboard(Fullsize ANSI 104) from a friend of mine who wanted to get rid of it due to a few problems regarding ghosting. The switches themselves work fine, and appear to be Cherry MX Blue clones, however there seem to be problems with the PCB, and it looks there are some cuts across the traces on the pcb, and I can't get a replacement pcb for the keyboard. I plan on harvesting the switches from the pcb and make my own tkl keyboard(I'll probably use the numpad switches to make a macropad later, along with a rotary encoder or 2). I need help reviewing the schematics and PCB for for the keyboard(First time designing a keyboard so kinda anxious).

While designing the keyboard, I followed masterzen's keyboard guide. The problem I am facing is that none of the pads on the usb-c port or the MCU have a pad labelled ground, even despite adding multiple grounds in the schematic, so I need reviewing these:

The MCU schema:

The Keyboard Matrix:

The MCU while designing the PCB:

The USB-C port while designing the PCB: