ezButton Library - Button Count Example

Hardware Required

1×Arduino UNO or Genuino UNO
1×USB 2.0 cable type A/B
1×Button
1×Breadboard
1×Jumper Wires
1×(Optional) 9V Power Adapter for Arduino
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About Button

About Button Library

Wiring Diagram

Arduino Button Library Wiring Diagram

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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 06.ButtonCount 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 number of the pressed count of a button with debounce and print it to Serial Monitor. */ #include <ezButton.h> ezButton button(7); // create ezButton object that attach to pin 7; void setup() { Serial.begin(9600); button.setDebounceTime(50); // set debounce time to 50 milliseconds button.setCountMode(COUNT_FALLING); } void loop() { button.loop(); // MUST call the loop() function first unsigned long count = button.getCount(); Serial.println(count); }
  • Click Upload button on Arduino IDE to upload code to Arduino
Arduino IDE Upload Code
  • Open Serial Monitor to see result:
  • Press and release the button serveral times
COM6
Send
0 0 1 1 1 2 2 2 3
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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