If you have a noisy signal, like a switch, you often want to "debounce". That means, ignore rapid changes (noise) in a signal after it changes. e.g. a switch is often configured as HIGH when open, and ...

3. Switch Debouncing IC. There are ICs available in market for switch debouncing. Some of the debouncing ICs are MAX6816, MC14490, and LS118. Below is the circuit diagram for switch debouncing using ...

This library is probably the simplest button debounce ulitity for Arduino. The code is based on Jack Ganssle's debounce function that he described in his part 2 of "A Guide to Debouncing" article.

Most debounce circuits shorten or lengthen the time a switch is pressed to obviate interference pulses caused by switch bounce. The present circuit does not affect that time: the pulse at the output ...