Finished designing the full macropad schematic in KiCad. The design includes a 3×3 key matrix, a Seeed Studio XIAO microcontroller, rotary encoder, OLED display, and a chain of addressable RGB LEDs for underglow.

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A surprising amount of time went into learning KiCad itself. Organizing the schematic onto the sheet took longer than expected since I had to learn about nets, labels, power flags, etc. Furthermore I also had to learn about symbols, footprints and the ERC.

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Next is the PCB where I’ll route the traces and define the physical layout of the board.