BLInk

1void setup() {
2  // put your setup code here, to run once:
3  pinMode(8,  OUTPUT);
4}
5
6void loop() {
7  // put your main code here, to run repeatedly:
8  digitalWrite(8,HIGH);
9  delay(1000);//delay of 1 second 
10  digitalWrite(8,LOW);
11  delay(1000);
12}