Nine buttons, nine lights: a Home Assistant macropad
Opening an app to turn off a light is a failure of imagination. I wanted physical buttons — so I built a 3x3 macropad where each key toggles a different light in the house through Home Assistant. The build Same construction approach as the split keyboard: a 3D-printed “PCB” with the switches hand-soldered directly, mounted in a 3D-printed case — all printed on the Creality Ender-3 V3 KE. Nine keys, no hot-swap sockets this time — these switches aren’t going anywhere, so they got soldered straight in. It’s mains-powered over USB, so no battery to think about. ...