ezOutput Library - Multiple Blink Without Delay Example

Hardware Required

1×Arduino UNO or Genuino UNO
1×USB 2.0 cable type A/B
3×220 ohm resistor
1×Jumper Wires
1×(Optional) 9V Power Adapter for Arduino
1×(Recommended) Screw Terminal Block Shield for Arduino Uno
1×(Optional) Transparent Acrylic Enclosure For Arduino Uno
Please note: These are Amazon affiliate links. If you buy the components through these links, We will get a commission at no extra cost to you. We appreciate it.

About LED

About ezOutput Library

Wiring Diagram

Arduino Output Library Wiring Diagram

This image is created using Fritzing. Click to enlarge image

Arduino Code

Quick Steps

  • Install ezOutput 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 ezOutput 05.MultipleBlinkWithoutDelay example
/* * Created by ArduinoGetStarted.com * * This example code is in the public domain * * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-output-library * * This example blinks 3 LED: * + with diffent frequencies * + start blink at the same time * + without using delay() function. This is a non-blocking example */ #include <ezOutput.h> // ezOutput library ezOutput led1(7); // create ezOutput object that attach to pin 7; ezOutput led2(8); // create ezOutput object that attach to pin 8; ezOutput led3(9); // create ezOutput object that attach to pin 9; void setup() { led1.blink(500, 250); // 500 milliseconds ON, 250 milliseconds OFF led2.blink(250, 250); // 250 milliseconds ON, 250 milliseconds OFF led2.blink(100, 100); // 100 milliseconds ON, 100 milliseconds OFF } void loop() { led1.loop(); // MUST call the led1.loop() function in loop() led2.loop(); // MUST call the led2.loop() function in loop() led3.loop(); // MUST call the led3.loop() function in loop() }
  • Click Upload button on Arduino IDE to upload code to Arduino
Arduino IDE Upload Code
  • See LED's state

Code Explanation

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

The Best Arduino Starter Kit