Finished the PCB for my Hackpad macropad! It’s a [3]-key design built around a Seeed XIAO RP2040. In KiCad I wired [3] switches to the XIAO’s pins and ground, then assigned footprints and routed the traces on the back layer. The XIAO is flipped to the bottom side, so it gets soldered from below. Last, I drew the board outline and measured it at [X] x [Y] mm, which I’ll use for the case. Next up is the case in Fusion 360, then the QMK firmware.