Ads by ArduinoGetStarted.com
ezButton Library - Button Array Example
Hardware Required
Disclosure: Some links in this section are Amazon affiliate links. If you make a purchase through these links, we may earn a commission at no extra cost to you.
Additionally, some links direct to products from our own brand, DIYables.
Additionally, some links direct to products from our own brand, DIYables.
Wiring Diagram
This image is created 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 07.ButtonArray example
/*
* Created by ArduinoGetStarted.com
*
* This example code is in the public domain
*
* Tutorial page: https://arduinogetstarted.com/tutorials/arduino-button-library
*
* This example shows how to use array of button.
*/
#include <ezButton.h>
const int BUTTON_NUM = 5;
const int BUTTON_1_PIN = 2;
const int BUTTON_2_PIN = 3;
const int BUTTON_3_PIN = 4;
const int BUTTON_4_PIN = 5;
const int BUTTON_5_PIN = 6;
ezButton buttonArray[] = {
ezButton(BUTTON_1_PIN),
ezButton(BUTTON_2_PIN),
ezButton(BUTTON_3_PIN),
ezButton(BUTTON_4_PIN),
ezButton(BUTTON_5_PIN)
};
void setup() {
Serial.begin(9600);
for (byte i = 0; i < BUTTON_NUM; i++) {
buttonArray[i].setDebounceTime(50); // set debounce time to 50 milliseconds
}
}
void loop() {
for (byte i = 0; i < BUTTON_NUM; i++)
buttonArray[i].loop(); // MUST call the loop() function first
for (byte i = 0; i < BUTTON_NUM; i++) {
if (buttonArray[i].isPressed()) {
Serial.print("The button ");
Serial.print(i + 1);
Serial.println(" is pressed");
}
if (buttonArray[i].isReleased()) {
Serial.print("The button ");
Serial.print(i + 1);
Serial.println(" is released");
}
}
}
- Click Upload button on Arduino IDE to upload code to Arduino
- Open Serial Monitor to see result:
- Press and release the button one by one
COM6
The button 1 is pressed
The button 1 is released
The button 2 is pressed
The button 2 is released
The button 3 is pressed
The button 3 is released
The button 4 is pressed
The button 4 is released
The button 5 is pressed
The button 5 is released
Autoscroll
Clear output
9600 baud
Newline
Code Explanation
Read the line-by-line explanation in comment lines of source code!