#define RED 23
#define GREEN 22
#define BLUE 19
#define YELLOW 18
#define ORANGE 5

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  pinMode(YELLOW, OUTPUT);
  pinMode(ORANGE, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(ORANGE, LOW);
  delay(1000);
  digitalWrite(RED, HIGH);
  delay(1000);
  digitalWrite(RED, LOW);
  digitalWrite(GREEN, HIGH);
  delay(500);
  digitalWrite(GREEN, LOW);
  digitalWrite(BLUE, HIGH);
  delay(500);
  digitalWrite(BLUE, LOW);
  digitalWrite(YELLOW, HIGH);
  delay(500);
  digitalWrite(YELLOW, LOW);
  digitalWrite(ORANGE, HIGH);
  delay(1000); // this speeds up the simulation
}