Blink Examples 01-Basics

/*

 Blink
UNO, MEGA and ZERO digital pin 13
MKR1000 pin 6. 
LED_BUILTIN is set to   the correct LED pin independent of which board is used.
 This example code is in the public domain.
 http://www.arduino.cc/en/Tutorial/Blink

• /

// the setup function runs once when you press reset or power the board void setup() {

 // initialize digital pin LED_BUILTIN as an output.
 pinMode(LED_BUILTIN, OUTPUT);

}

// the loop function runs over and over again forever void loop() {

 digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
 delay(1000);                       // wait for a second
 digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
 delay(1000);                       // wait for a second

}