#define ledR 12
#define ledY 13
#define ledG 14


void setup() {
  Serial.begin(96000);
  pinMode(ledR,OUTPUT);
  pinMode(ledY,OUTPUT);
  pinMode(ledG,OUTPUT);


}

void loop() {
  //S1 : red ON 5s
  Serial.println("S1 Red is ON");
  digitalWrite(ledR, HIGH); //ON
  delay(1000);
  digitalWrite(ledR, LOW);
  delay(1000);

  digitalWrite(ledY, HIGH);
  delay(1000);
  digitalWrite(ledY, LOW);
  delay(1000);

  digitalWrite(ledG, HIGH);
  delay(1000);
  digitalWrite(ledG, LOW);
  delay(1000); 
}