4 layers150 × 85 mm

DetentOne
alislaboratory/detentOne
A Customisable BLE Macropad with a Haptic Knob and OLED.
98 parts2MIT
Boards in 1 GitHub repository, designed in KiCad, that use the PCA9554ARGVR by Texas Instruments (-40℃~+85℃ 1.1uA 10mA 2.3V~5.5V 25mA 3.1V 400kHz 400mV 8 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver VQFN-16-EP(4x4) I/O Expanders ROHS). See how each wires it, with its parts, size, README and files; the PCA9554ARGVR’s symbol, footprint and pinout are on its own page.

alislaboratory/detentOne
A Customisable BLE Macropad with a Haptic Knob and OLED.