ezButton Library - Single Button Debounce Example

Hardware Required

1×Arduino UNO or Genuino UNO
1×USB 2.0 cable type A/B
1×Button
1×Breadboard
2×Jumper Wires
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About Button

About Button Library

Wiring Diagram

Arduino Button Library Wiring Diagram

Image is developed using Fritzing

Arduino Code

Quick Steps

  • Install ezButton library. See How To
  • Connect Arduino to PC via USB cable
  • Open Arduino IDE, select the right board and port
  • On Arduino IDE, Go to File Examples ezButton 02.SingleButtonDebounce example
/* * Created by ArduinoGetStarted.com * * This example code is in the public domain * * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-button-library * * This example reads the state of a button with debounce and print it to Serial Monitor. */ #include <Button.h> Button button(7); // create Button object that attach to pin 7; void setup() { Serial.begin(9600); button.setDebounceTime(100); // set debounce time to 100 milliseconds } void loop() { button.loop(); // MUST call the loop() function first int btnState = button.getState(); Serial.println(btnState); }
  • Click Upload button on Arduino IDE to upload code to Arduino
  • Arduino IDE Upload Code
  • Open Serial Monitor to see result:
  • COM6
    Send
    Autoscroll Show timestamp
    Clear output
    9600 baud  
    Newline  

Code Explanation

Read the line-by-line explanation in comment lines of source code!

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