The state of the chip is fixed, a constant high voltage level appears at its output and remains. When transistor Q1 switches its state, the load is connected to the power source. In order to turn off ...

The circuit replaces a more costly and bulky push-push mechanical switch. The pushbutton switch triggers a monoshot circuit. The monoshot circuit’s output triggers a toggle flip-flop, which inverts ...

You know them, you love them, you take them for granted – they are single push button on/off switches. As [Dino] explains in the most recent episode of his Hack a Week series, they are typica… ...

I could switch any of the 3 LED banks between off, auto or on as needed, and the moment I stepped inside into the light, it automatically shut off unless I manually overrode it.

The Raspberry Pi power switch provides a single button for both on and off just like most consumer electronic devices but can be wirelessly operated using the infrared remote control if desired ...

That’s the simple notion behind the Whole House-Off Switch by designer Jack Godfrey Wood, a single button that can turn off of the unnecessary power in the house, so as you walk out the door ...