#define pinRed 5
#define pinBlue 19
#define pinGreen 18


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(pinRed, OUTPUT);
  pinMode(pinBlue, OUTPUT);
  pinMode(pinGreen, OUTPUT);

}

void loop() {
  analogWrite(pinBlue,0);
  analogWrite(pinGreen,0);
  for(int i = 0;i<255;i++){
    analogWrite(pinRed,i);
    delay(10);
  }
  for(int i = 0;i<255;i++){
    analogWrite(pinBlue,i);
    delay(10);
  }
  for(int i = 255;i>0;i--){
    analogWrite(pinRed,i);
    delay(10);
  }
  for(int i = 0;i<255;i++){
    analogWrite(pinGreen,i);
    delay(10);
  }
  for(int i = 255;i>0;i--){
    analogWrite(pinBlue,i);
    delay(10);
  }

  analogWrite(pinRed,0);
  analogWrite(pinBlue,0);
  analogWrite(pinGreen,255);
  delay(2000);
  
  delay(10); // this speeds up the simulation
}