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   Turns on an LED on for one second, then off for one second, repeatedly.
 
   Turns on an LED on for one second, then off for one second, repeatedly.
 
   
 
   
  This example code is in the public domain.
 
 
  */
 
  */
 
   
 
   

Revision as of 16:13, 15 September 2014

Aurduino Blink a LED.JPG

Code

/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.
 
 */
 
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
}
// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second
}