// Forum: https://forum.arduino.cc/t/leds-only-showing-values-max-power/1226648/
// This Wokwi project: https://wokwi.com/projects/390347396026459137

#include <Servo.h>

int redPin = 10;
int greenPin = 11;
int bluePin = 9;
int angle = 0;

Servo serb;

void setup()
{
  Serial.begin(9600);
  serb.attach(8);   //Associate serbiy with pin 9
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop()
{
  int red, green, blue;

  red = 0;
  green = 0;
  blue = 0;

  for (green = 0; green <= 50; green += 1)
  {
    for (blue = 255; blue >= 0; blue = blue - 1)
    {
      for (red = 255; red >= 0; red = red - 1)
      {
        if (red == 255) 
        {
          if (angle == 0) 
          {
            angle = 180;
            serb.write(angle);
            analogWrite(redPin, red);     //Turns on led at pin 13
            analogWrite(greenPin, green); //Turns on led at pin 13
            analogWrite(bluePin, blue);   //Turns on led at pin 13
            delay(250);
          }
        }
        if (red == 127) 
        {
          if (angle == 180) 
          {
            angle = 0;
            serb.write(angle);
            analogWrite(redPin, red);     //Turns on led at pin 13
            analogWrite(greenPin, green); //Turns on led at pin 13
            analogWrite(bluePin, blue);   //Turns on led at pin 13
            delay(250);
          }
        }

        analogWrite(redPin, red);        //Turns on led at pin 13
        analogWrite(greenPin, green);    //Turns on led at pin 13
        analogWrite(bluePin, blue);      //Turns on led at pin 13
        delay(250);

        Serial.print(red);
        Serial.print(" , ");
        Serial.print(green);
        Serial.print(" , ");
        Serial.print(blue);
        Serial.print(" , ");
        Serial.println(angle);
      }
    }
  }
}