Importance and Usefulness of the Chosen Theme

The theme of building an RGB lamp with Arduino is important and useful because it allows individuals to learn and understand the fundamentals of electronics and programming. By creating this project, users can gain hands-on experience in working with Arduino boards, RGB LEDs, and coding. Additionally, this project can be a stepping stone for further exploration into more complex projects involving automation, robotics, and home lighting systems.

Project: Building an RGB Lamp

The project consists of creating an RGB lamp using an Arduino board and an RGB LED. The lamp will have the capability to change colors and brightness levels based on user input. The main objectives of this project are to learn how to control RGB LEDs using Arduino, understand the basics of PWM (Pulse Width Modulation), and create a functional and customizable RGB lamp.

List of Components:

• Arduino Uno board x1
• RGB LED x1
• 220-ohm resistors x3
• Jumper wires
• Breadboard

Examples:

Example 1: Basic RGB Lamp Control

// Define the pins for the RGB LED
int redPin = 9;
int greenPin = 10;
int bluePin = 11;

void setup() {
  // Set the RGB LED pins as outputs
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  // Turn on the red color
  digitalWrite(redPin, HIGH);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, LOW);

  delay(1000); // Wait for 1 second

  // Turn on the green color
  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin, LOW);

  delay(1000); // Wait for 1 second

  // Turn on the blue color
  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin, HIGH);

  delay(1000); // Wait for 1 second
}

Example 2: Adjusting RGB Lamp Color with Potentiometers

// Define the pins for the RGB LED
int redPin = 9;
int greenPin = 10;
int bluePin = 11;

// Define the pins for the potentiometers
int redPotPin = A0;
int greenPotPin = A1;
int bluePotPin = A2;

void setup() {
  // Set the RGB LED pins as outputs
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  // Read the values from the potentiometers
  int redValue = analogRead(redPotPin);
  int greenValue = analogRead(greenPotPin);
  int blueValue = analogRead(bluePotPin);

  // Map the potentiometer values to the RGB LED range
  int redMapped = map(redValue, 0, 1023, 0, 255);
  int greenMapped = map(greenValue, 0, 1023, 0, 255);
  int blueMapped = map(blueValue, 0, 1023, 0, 255);

  // Set the RGB LED colors based on the potentiometer values
  analogWrite(redPin, redMapped);
  analogWrite(greenPin, greenMapped);
  analogWrite(bluePin, blueMapped);
}