2 layers30.5 × 26.7 mm

Keyboard
mattsains/keyboard
Hardware and software implementation of an asetniop split keyboard
20 parts1
Boards in 1 GitHub repository, designed in KiCad, that use the PCAL6408APWJ by NXP Semiconductors (-40℃~+85℃ 1.65V~5.5V 1uA 2 25mA 400kHz 8 I2C、SMBus Interrupt Output Push-Pull、Open-drain Reset function、Cascading and address extension、Built-in LED driver、IO level configurable TSSOP-16 I/O Expanders ROHS). See how each wires it, with its parts, size, README and files; the PCAL6408APWJ’s symbol, footprint and pinout are on its own page.

mattsains/keyboard
Hardware and software implementation of an asetniop split keyboard