#define red 8
#define yellow 5
#define green 4
void setup()
 {
pinMode(red,OUTPUT);
pinMode(yellow,OUTPUT);
pinMode(green,OUTPUT);
Serial.begin(9600);  
}

void loop()
 {
digitalWrite(red, HIGH);
digitalWrite(yellow, LOW);
digitalWrite(green, LOW);
Serial.println("my bgs is ON");
Serial.println("my ece is ON");
delay(2000);
digitalWrite(red, LOW);
digitalWrite(yellow, HIGH);
digitalWrite(green, LOW);
Serial.println("my bgs is OFF");
Serial.println("my ece is OFF");
delay(1000);
digitalWrite(red, LOW);
digitalWrite(yellow, LOW);
digitalWrite(green, HIGH);
Serial.println("my bgs is OFF");
Serial.println("my ece is OFF");
delay(3000);
}