ezLED Library - LED Blink Example

This tutorial shows how to use an example of ezLED library that blink a LED.

Hardware Required

1	×	Arduino UNO or Genuino UNO
1	×	USB 2.0 cable type A/B
1	×	LED
1	×	220 ohm resistor
1	×	Jumper Wires
1	×	(Optional) 9V Power Adapter for Arduino
1	×	(Optional) Screw Terminal Block Shield for Arduino

One of the following breadboard:

1	×	Full-sized 830-Point Breadboard
1	×	Half-sized 400-point Breadboard
1	×	Mini-sized 170-point Breadboard
1	×	All-sized Breadboard Kit

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About LED

Refer to Arduino - Led Blink tutorial

About ezLED Library

Refer to Arduino - ezLED Library Reference

Wiring Diagram

This image is created using Fritzing. Click to enlarge image

Arduino Code

Quick Steps

Install ezLED 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 ezLED LEDBlink example

/* Created by ArduinoGetStarted.com This example code is in the public domain Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-blink This example blinks LED: + blink led + without using delay() function. This is a non-blocking example */ #include <ezLED.h> // ezLED library ezLED led(9); // create a LED object that attach to pin 9 void setup() { Serial.begin(9600); led.blink(250, 750); // 250ms ON, 750ms OFF, blink immediately //led.blink(250, 750, 1000); // 250ms ON, 750ms OFF, blink after 1 second } void loop() { led.loop(); // MUST call the led.loop() function in loop() if (led.getState() == LED_BLINKING) Serial.println("BLINKING"); else if (led.getState() == LED_IDLE) Serial.println("BLINK ENDED"); // To stop blinking immediately, call led.cancel() function }

Click Upload button on Arduino IDE to upload code to Arduino

Open Serial Monitor to see result:

COM6

Send

BLINKING BLINKING BLINKING BLINKING BLINKING BLINKING BLINKING

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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