Boards in 3 GitHub repositories, designed in KiCad, that use the K2-1102DP-C4SW-04 by HRO Electronics (-25℃~+85℃ 100,000 cycles 12V 2.5N 50mA 5mm 6mm 6mm Round Button SPST Through Hole 插件-4P,6x6mm Tactile Switches ROHS). See how each wires it, with its parts, size, README and files; the K2-1102DP-C4SW-04’s symbol, footprint and pinout are on its own page.
HeyPCB/hello-8051
HELLO: a tiny 8051 computer shaped like a 1984 desktop. AT89S52, 32 KB SRAM, 128x64 ST7920 LCD, USB-C. 112 x 158 mm 2-layer KiCad 10 board, DRC clean, firmware that writes hello. Built through HeyPCB's MCP server.
JuanPoueriet/automatic-spork
Máquina de ruleta física de casino. 6 PCBs: pic32main (cerebro), wheel (rueda de LEDs), displaysa/b/c (paneles de 7 segmentos en cascada) y buttons (botonera).
laforestlabs/KiCraft
KiCad PCB automation toolkit — placement, routing, scoring, and experiment management