edge detection after debouncing library?

PieterP · November 21, 2017, 9:02am

I'm pretty sure most (if not all) debouncing libraries use edge detection.

If you only need to use one kind of edge (either rising or falling), you can use this:

tttapa/Projects/blob/master/Arduino/LEDs, Buttons, etc./PushButton-debounce/PushButton-debounce.ino

/*
 * Example sketch that defines a class for debouncing push buttons.
 * It uses this class to toggle the built-in LED:
 * 
 * Connect a push button between ground and digital pin 2, then upload the 
 * sketch, and push the button.
 * If you press it once, the LED will turn on, if you press it again, the LED
 * will turn off again.
 * 
 * To illustrate the problems with contact bounce, set the `debounceTime` to
 * zero and observe how hard it is to get the LED to turn on/off.
 */

class PushButton {
 public:
  /// Constructor (executes when a PushButton object is created).
  PushButton(uint8_t pin)
    : pin(pin) // remember the push button pin
  {}

This file has been truncated. show original

Pieter

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edge detection after debouncing library?

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