Smart LED: Blink LED Using Arduino UNO

1// the setup function runs once when you press reset or power the board
2void  setup() {
3  // initialize digital pin LED_BUILTIN as an output.
4  pinMode(8,  OUTPUT);
5}
6
7// the loop function runs over and over again forever
8void  loop() {
9  digitalWrite(8, HIGH);   // turn the LED connected to 8th pin ON (HIGH  is the voltage level)
10  delay(1000);            // wait for a second( Values  are given in milli seconds)
11  digitalWrite(8, LOW);    // turn the LED connected  to 8th pin OFF by making the voltage LOW
12  delay(1000);            // wait for  a second
13}

1// the setup function runs once when you press reset or power the board
2void
3  setup() {
4  // initialize digital pin LED_BUILTIN as an output.
5  pinMode(8,
6  OUTPUT);
7}
8
9// the loop function runs over and over again forever
10void
11  loop() {
12  digitalWrite(8, HIGH);   // turn the LED connected to 8th pin ON (HIGH
13  is the voltage level)
14  delay(1000);            // wait for a second( Values
15  are given in milli seconds)
16  digitalWrite(8, LOW);    // turn the LED connected
17  to 8th pin OFF by making the voltage LOW
18  delay(1000);            // wait for
19  a second
20}