How to blink LED

1void setup() {
2  pinMode(13, OUTPUT); 
3}
4
5void loop() {
6  digitalWrite(13, HIGH); 
7  delay(1000);           
8  digitalWrite(13, LOW);  
9  delay(1000);          
10}
11

1void setup() {
2  pinMode(13, OUTPUT); 
3}
4
5void loop() {
6   digitalWrite(13, HIGH); 
7  delay(1000);           
8  digitalWrite(13, LOW);   
9  delay(1000);          
10}
11