github.com/robgonnella/ardi/v2@v2.4.5-0.20230102052001-11a49de978c3/test_projects/blink/blink.ino (about)

     1  /*
     2    Blink
     3  
     4    Turns an LED on for one second, then off for one second, repeatedly.
     5  
     6    Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
     7    it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
     8    the correct LED pin independent of which board is used.
     9    If you want to know what pin the on-board LED is connected to on your Arduino
    10    model, check the Technical Specs of your board at:
    11    https://www.arduino.cc/en/Main/Products
    12  
    13    modified 8 May 2014
    14    by Scott Fitzgerald
    15    modified 2 Sep 2016
    16    by Arturo Guadalupi
    17    modified 8 Sep 2016
    18    by Colby Newman
    19  
    20    This example code is in the public domain.
    21  
    22    http://www.arduino.cc/en/Tutorial/Blink
    23  */
    24  
    25  // the setup function runs once when you press reset or power the board
    26  void setup()
    27  {
    28    // initialize digital pin LED_BUILTIN as an output.
    29    pinMode(LED_BUILTIN, OUTPUT);
    30  }
    31  
    32  // the loop function runs over and over again forever
    33  void loop()
    34  {
    35    digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
    36    delay(1000);                     // wait for a second
    37    digitalWrite(LED_BUILTIN, LOW);  // turn the LED off by making the voltage LOW
    38    delay(1000);                     // wait for a second
    39  }