初学者的 Arduino 指南/项目/使 LED 闪烁

在本章中，你将学习如何在 Arduino 板上使 LED 闪烁。这是你可以进行的最简单的项目之一。

// this runs only once on power up
void setup() {
  pinMode(13, OUTPUT);
}

// the loop function runs continuously until the device is powered down
void loop() {
  digitalWrite(13, HIGH);   // turn on LED
  delay(1000);              // wait for a second
  digitalWrite(13, LOW);    // turn off LED
  delay(1000);              // wait for a second
}