//Test 3 LED 

int led3=3;
int led5=5;
int led7=7;

void setup() {
  // put your setup code here, to run once:
  pinMode(led3, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led7, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led3, 1);
  delay(500);
  digitalWrite(led5, 1);
  delay(500);
  digitalWrite(led7, 1);
  delay(500);

  digitalWrite(led3, 0);
  delay(500);
  digitalWrite(led5, 0);
  delay(500);
  digitalWrite(led7, 0);
  delay(500);
}

//Complete