// Pin definitions based on our previous wiring
const int RED_PIN = 18;
const int GREEN_PIN = 19;
const int BLUE_PIN = 21;

void setup() {
  // Initialize the pins as outputs
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);
  
  Serial.begin(115200);
  Serial.println("RGB Basic Color Cycle Started!");
}

// Helper function to set the LED color
void displayColor(int r, int g, int b, String name) {
  Serial.print("Now showing: ");
  Serial.println(name);
  
  analogWrite(RED_PIN, r);
  analogWrite(GREEN_PIN, g);
  analogWrite(BLUE_PIN, b);
}

void loop() {
  // 1. Red (Primary)
  displayColor(255, 0, 0, "Red");
  delay(1000);

  // 2. Green (Primary)
  displayColor(0, 255, 0, "Green");
  delay(1000);

  // 3. Blue (Primary)
  displayColor(0, 0, 255, "Blue");
  delay(1000);

  // 4. Yellow (Red + Green)
  displayColor(255, 255, 0, "Yellow");
  delay(1000);

  // 5. Cyan (Green + Blue)
  displayColor(0, 255, 255, "Cyan");
  delay(1000);

  // 6. Magenta (Red + Blue)
  displayColor(255, 0, 255, "Magenta");
  delay(1000);

  // 7. White (Red + Green + Blue)
  displayColor(255, 255, 255, "White");
  delay(1000);

  // 8. Black/Off
  displayColor(0, 0, 0, "Off");
  delay(1000);
}