#define Green_Led 4
#define Yellow_Led 17
#define Red_Led 16
void setup() {
  // put your setup code here, to run once:
  pinMode(Green_Led, OUTPUT);
  pinMode(Yellow_Led, OUTPUT);
  pinMode(Red_Led, OUTPUT);
  Serial.begin(115200);
  

}

void loop() {
  // put your main code here, to run repeatedly:
   digitalWrite(Green_Led, HIGH);
   Serial.println("Green Led Is Turned On");
  delay(3000);
  digitalWrite(Green_Led, LOW);
  delay(500);    //3 seconds


  //yellow
  digitalWrite(Yellow_Led, HIGH);
  Serial.println("Yellow Led Is Turned On");
  delay(3000);
  digitalWrite(Yellow_Led, LOW);
  delay(500);

  //Red
  digitalWrite(Red_Led, HIGH);
  Serial.println("Red Led Is Turned On");
  delay(3000);
  digitalWrite(Red_Led, LOW);
  delay(500);  
  
  
}