Code LED di Arduino Uno

 

void setup() {

  // put your setup code here, to run once:

 pinMode(1, OUTPUT);

 digitalWrite(1, HIGH);

}

void loop() {

  // put your main code here, to run repeatedly:

 digitalWrite(1, HIGH);  // turn the LED on (HIGH is the voltage level)

  delay(1000);                      // wait for a second

  digitalWrite(1, LOW);   // turn the LED off by making the voltage LOW

  delay(1000);      

}