光敏電阻 (光控) 實驗

#define ADpin A5
#define LED 13
int ADBuffer = 0;
void setup()
{
pinMode(LED, OUTPUT);
Serial.begin(9600);
}
void loop()
{
ADBuffer = analogRead(ADpin);
Serial.print("AD = ");
Serial.println(ADBuffer);
if (ADBuffer > 900)
digitalWrite(LED, HIGH);
else
digitalWrite(LED, LOW);
delay(500);
}