RGB LED and 3 Single LEDs Control

This project demonstrates how to control an RGB LED along with 3 individual LEDs using a microcontroller/Arduino.

It allows users to switch ON/OFF individual LEDs and mix RGB colors through programming logic.

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📌 Features

• Control Red, Green, Blue channels of RGB LED.
• Control 3 Separate Single LEDs.
• Generate multiple colors using RGB combinations.
• Simple digital output-based LED control.
• Beginner-friendly embedded systems project.

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🛠️ Components Used

• Arduino Uno / Compatible Microcontroller.
• 1 RGB LED.
• 3 Single LEDs.
• Resistors (220Ω / 330Ω)
• Breadboard.
• Jumper Wires.
• USB Cable / Power Supply.

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🔌 Circuit Connections

RGB LED Pins

• Red Pin → Digital Pin 9
• Green Pin → Digital Pin 10
• Blue Pin → Digital Pin 11

Single LEDs

• LED 1 → Digital Pin 2
• LED 2 → Digital Pin 3
• LED 3 → Digital Pin 4

Note: Use current-limiting resistors for all LEDs.

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💻 Arduino Code

cpp

int red = 9;

int green = 10;

int blue = 11;

int led1 = 2;

int led2 = 3;

int led3 = 4;

void setup()

{

pinMode(red, OUTPUT);

pinMode(green, OUTPUT);

pinMode(blue, OUTPUT);

pinMode(led1, OUTPUT);

pinMode(led2, OUTPUT);

pinMode(led3, OUTPUT);

}

void loop()

{

// RGB LED Colors

digitalWrite(red, HIGH);

delay(500);

digitalWrite(red, LOW);

digitalWrite(green, HIGH);

delay(500);

digitalWrite(green, LOW);

digitalWrite(blue, HIGH);

delay(500);

digitalWrite(blue, LOW);

// Single LEDs

digitalWrite(led1, HIGH);

digitalWrite(led2, HIGH);

digitalWrite(led3, HIGH);

delay(1000);

digitalWrite(led1, LOW);

digitalWrite(led2, LOW);

digitalWrite(led3, LOW);

delay(1000);

}

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👨‍💻 Author

Madhan Kumar

• GitHub : [https://github.com/Madhan-03]
• LinkedIn : [https://www.linkedin.com/in/madhan-kumar-128644362/]

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