ezButton Library - Multiple Button All Example

Hardware Required

1×Arduino UNO or Genuino UNO
1×USB 2.0 cable type A/B
3×Button
1×Breadboard
6×Jumper Wires
Please note: These are affiliate links. If you buy the components through these links, We may get a commission at no extra cost to you. We appreciate it.
Or you can order electronic components from utsource.net

About Button

About Button Library

Wiring Diagram

Arduino Button Library Wiring Diagram

Image is developed using Fritzing. Click to enlarge image

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 05.MultipleButtonAll example
/* * Created by ArduinoGetStarted.com * * This example code is in the public domain * * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-button-library * * This example: * + uses debounce for multiple buttons. * + reads state of multiple buttons * + detects the pressed and released events of multiple buttons */ #include <ezButton.h> ezButton button1(6); // create ezButton object that attach to pin 6; ezButton button2(7); // create ezButton object that attach to pin 7; ezButton button3(8); // create ezButton object that attach to pin 8; void setup() { Serial.begin(9600); button1.setDebounceTime(50); // set debounce time to 50 milliseconds button2.setDebounceTime(50); // set debounce time to 50 milliseconds button3.setDebounceTime(50); // set debounce time to 50 milliseconds } void loop() { button1.loop(); // MUST call the loop() function first button2.loop(); // MUST call the loop() function first button3.loop(); // MUST call the loop() function first int btn1State = button1.getState(); int btn2State = button2.getState(); int btn3State = button3.getState(); Serial.print("button 1 state: "); Serial.println(btn1State); Serial.print("button 2 state: "); Serial.println(btn2State); Serial.print("button 3 state: "); Serial.println(btn3State); if(button1.isPressed()) Serial.println("The button 1 is pressed"); if(button1.isReleased()) Serial.println("The button 1 is released"); if(button2.isPressed()) Serial.println("The button 2 is pressed"); if(button2.isReleased()) Serial.println("The button 2 is released"); if(button3.isPressed()) Serial.println("The button 3 is pressed"); if(button3.isReleased()) Serial.println("The button 3 is released"); }
  • 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!

Comments

If you have any questions or suggestions, please comment on our YouTube channel

If this tutorial is useful for you, please support our works