// Define the RGB LED pins
const int redPin = 15;    // GPIO pin connected to the Red LED
const int greenPin = 4;   // GPIO pin connected to the Green LED
const int bluePin = 2;    // GPIO pin connected to the Blue LED

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

void loop() {
  // Cycle through the rgb colors
   showColor(255, 0, 0);    // Red
  delay(1000);
  showColor(255, 127, 0);  // Orange
  delay(1000);
  showColor(255, 255, 0);  // Yellow
  delay(1000);
  showColor(0, 255, 0);    // Green
  delay(1000);
  showColor(0, 0, 255);    // Blue
  delay(1000);
  showColor(75, 0, 130);   // Indigo
  delay(1000);
  showColor(148, 0, 211);  // Violet
  delay(1000);

}

// Function to set the RGB color
void showColor(int red, int green, int blue) {
  analogWrite(redPin, red);    // Set the red channel
  analogWrite(greenPin, green);// Set the green channel
  analogWrite(bluePin, blue);  // Set the blue channel
}