A previous Design Idea outlined a relatively simple circuit in which a momentary pushbutton could be made to function like a latching, mechanical switch. The article generated a good deal of reader ...

Low-current, momentary action pushbutton switches, such as PCB-mount ‘tactile’ types, are cheap, and available in an abundance of different styles. Latching types, on the other hand, are often larger, ...

This project demonstrates how to build a simple latching power switch using a push button and an LED connected to an Arduino Uno. The LED turns ON when the button is pressed once, and turns OFF when ...