Extending Woodward's original "Flip ON Flop OFF" for AC voltages, switching power ON and OFF using a pushbutton or a ...

This push-button fan switch design includes a timed automatic shut off, connections to the mains, and other minor changes from previous Design Ideas.

The board holds a battery, an on-off switch, a volume controller, a fast-forward button, and a microchip, and it’s remarkably easy to operate.