const int BUTTON = 8;
const int LED = 13;
int value;
void setup()
{
  // put your setup code here, to run once:
    pinMode(BUTTON, INPUT);
    pinMode(LED, OUTPUT);

}
void loop()
{
  // put your main code here, to run repeatedly:
    value = digitalRead(BUTTON);  // 讀取傾斜開關

    if(value){
        digitalWrite(LED, LOW);// 開關傾斜，LED小燈點亮
    }else{
        digitalWrite(LED, HIGH);// 開關直立，LED小燈熄滅
    }
    delay(100);
}