LED的閃爍
//闆子上接了一個測試用的LED,接輸出引腳13端口
#define LED_PIN 13
// 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_PIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_PIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(500); // 等待500毫秒
digitalWrite(LED_PIN, LOW); // turn the LED off by making the voltage LOW
delay(500); // 等待500毫秒
}
作業:
模拟交通燈