//blinking LED test program to run 5 LED  in pattern of blink.
int LED1=0;
int LED2=1;
int LED3=2;
int LED4=3;
int LED5=4;
void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
}

void loop() {
  digitalWrite(LED1, HIGH);
  delay(50);
  digitalWrite(LED1, LOW);
  delay(50);
  digitalWrite(LED2, HIGH);
  delay(50);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, HIGH);
  delay(50);
  digitalWrite(LED3, LOW);
  digitalWrite(LED4, HIGH);
  delay(50);
  digitalWrite(LED4, LOW);
  digitalWrite(LED5, HIGH);
  delay(50);
  digitalWrite(LED5, LOW);
  delay(50);

}