Published July 29, 2021 © MIT

Arduino Basic Project-#2

In this project we are going to demonstrate how we can blink LED using Arduino UNO.

BeginnerFull instructions provided-30 minutes540

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

LED (generic)

Resistor 220 ohm

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

Introduction

In this project I am going to discuss how we can blink 3 LED lights using Arduino UNO. Basically we will make a circuit with 3 LED with Arduino UNO and upload a code by using Arduino IDE.

Connections

Arduino Digital Pin 2 to Yellow LED Anode
Arduino Digital Pin 3 to Red LED Anode
Arduino Digital Pin 4 to Green LED Anode
Arduino GND to Breadboard GND
LED light's Cathode to Breadboard GND

Project Explanation

Here Yellow, Red, and Green 3 LED lights are connected with the Arduino digital pin 2, 3 and 4 respectively. From this 3 digital pin led lights will get the power for turning on. Blink a led light means that the led light will lit up for a while and it will turn off after a while. After completing the upload of the code the circuit will be functioning according to our code.

Steps to Upload the Code

Step-1

First Open the Arduino IDE.

Arduino IDE

Step-2

Then Write the whole code.

Step-3

Connect the Arduino UNO with our computer/laptop by the help of data cable.

Step-4

a) Select Tools > Port and select the correct port.

Select Port

b) Select Tools > Boards > Arduino UNO

Select Board

Step-5

Last but not the least Save your program and upload the program to the Arduino UNO.

Demonstration Video

Additional Links

1. Github Repository: https://github.com/MakerBuddy/arduino-basics-projects/tree/main/Project-%232

2. Tinkercad Link: https://www.tinkercad.com/things/fp7phntWLOh

Code

Arduino-Basic-Project-_2.ino

//Date:27/07/2021
//Name: Khaled Saifullah
//MakerBuddy
//Dhaka,Bangladesh

int greenLed = 4;
int redLed = 3;
int yellowLed = 2;

void setup()
{
  pinMode(yellowLed, OUTPUT);
  pinMode(redLed, OUTPUT);
  pinMode(greenLed, OUTPUT);
}

void loop()
{
  digitalWrite(greenLed, HIGH);
  digitalWrite(redLed, HIGH);
  digitalWrite(yellowLed, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(greenLed, LOW);
  digitalWrite(redLed, LOW);
  digitalWrite(yellowLed, LOW);
  delay(1000); // Wait for 1000 millisecond(s)
}

Credits

Khaled Md Saifullah

18 projects • 44 followers

🦸Tech Enthusiast 👨🏾‍💻Programmer 📳IoT Specialist

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