In this case, [Tod] wanted to use a momentary tactile switch to turn something on and off. Instead of going with a microcontroller he built the circuit around a 555 timer.

When selecting a push button switch for your electrical circuit, you must take into account the function it needs to perform, such as momentary or latching, and whether you need a NO or a NC switch.

Push-Button-Circuit Push button is one of the forms of the momentary switch, as it activates its work when pressed, while it returns to its basic state when the finger is lifted from it. (such as a ...

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K. Whittingham’s cunning push button circuit After I proposed: PIC reset and I/O on the same push-button? K. Wittingham responded: “Why not use a D-Flip Flop with the switch connected to clock, and ...

With an unlikely GFCI in the fan’s circuit main, this use of the ground wire could cause false tripping. Figure 2 This is the PCB layout for the circuit. Figure 3 Here is the completed board for this ...

[Victor] sends in this quick project on turning an Emergency Stop Push button into a ‘Build’ button. From the looks of it, this project uses a Teensy 2.0, which sports an ATMEGA32U4.

I am trying to design a little circuit to control a light. It is supposed to be a one-push-button affair, with a long push for something and a short push for something else. One crucial thing is, that ...