ysam12345

void setup() {
  pinMode(A0, INPUT);
  pinMode(13, OUTPUT);
}

void loop() {
  int switchStatus;
  switchStatus=digitalRead(A0);
  if(switchStatus==HIGH)
  {

ysam12345

void setup() {//這裡面要放最一開始執行的程式碼

pinMode(LED_BUILTIN, OUTPUT);

}
void loop() {//此處程式碼會不斷地執行

       digitalWrite(LED_BUILTIN, HIGH); //把一個燈泡點亮(HIGH就是亮)
       delay(1000); //讓它亮1秒(1000毫秒=1秒)
      digitalWrite(LED_BUILTIN, LOW); //燈泡暗了(LOW就是暗)

ysam12345

int trigPin = 12;
	int echoPin = 11;
	long duration, cm, inches;

	void setup(){
	  Serial.begin(9600);
	  pinMode(trigPin, OUTPUT); //Define input and output
	  pinMode(echoPin, INPUT);
	}

ysam12345

	const int PIRSensor=2;  //紅外線接腳
	const int ledPin=13;   //LED接腳
	int tmp;
	int sensorValue=0;
	int buzzerPin=9;  //蜂鳴器接腳

	void setup(){  //設定輸入輸出
	  pinMode(PIRSensor, INPUT);   
	  pinMode(ledPin, OUTPUT);
	  pinMode(buzzerPin, OUTPUT);