#define ledred 5
#define ledblue 17
#define ledgreen 16
void setup(){
  pinMode(ledred, OUTPUT);
  pinMode(ledgreen, OUTPUT);
  pinMode(ledblue, OUTPUT);

}
void loop(){
  digitalWrite(ledred, HIGH);
  digitalWrite(ledblue, LOW);
  digitalWrite(ledgreen, LOW);
  delay(500);
  digitalWrite(ledred, LOW);
  digitalWrite(ledblue, HIGH);
  digitalWrite(ledgreen, LOW);
  delay(500);
  digitalWrite(ledred, LOW);
  digitalWrite(ledblue, LOW);
  digitalWrite(ledgreen, HIGH);
  delay(500);
  digitalWrite(ledred, LOW);
  digitalWrite(ledblue, LOW);
  digitalWrite(ledgreen, LOW);
  delay(500);
}