HOW TO BLINK AN LED USING ARDUINO

LED (Light emitting diodes) are small, powerful lights that are used in many different applications. To blink an led, i.e (on and off repeatedly) using ARDUINO involves the following components and procedures.

Components Required.

• 1 × Breadboard.
• 1 × Arduino Uno.
• 1 × LED.
• 1 × 330Ω Resistor.
• 2 × Jumper wires.

Procedure.

use this circuit diagram and connect up the components on the breadboard as shown in the image given below.

Note: LED have polarity (positive and negative terminals),longer leg is the POSITIVE while the shorter leg is the NEGATIVE.

Sketch

Open your Arduino IDE,copy and past this  code

/*

   Blink

   Turns on an LED on for one second, then off for one second, repeatedly.

*/

#define LED=8;//means led is connected to digital pin 8

void setup() {  // initialize LED as an output.

   pinMode(LED, OUTPUT);// informs Arduino that LED is Output

}

// the loop function runs over and over again

void loop() {

   digitalWrite(LED, HIGH); // turn the LED on

   delay(1000); // wait for a second

   digitalWrite(LED, LOW); // turn the LED off

   delay(1000); // wait for a second

}

please if  you have any question don't hesitate to ask in the comment box.