//宣告
//int 變數名稱 = 腳位;
int led = 15;
void setup() {
//設定
//pinMode(變數名稱, INPUT或OUTPUT);
pinMode(led, OUTPUT);
}
void loop() {
//迴圈
//digitalWrite(變數名稱, HIGH或LOW);
digitalWrite(led, HIGH);
delay(1000);
digitalWrite(led, LOW);
delay(1000);
}