1 // sketch_05_07_light_sensing
3 const int inputPin = A0;
4 const int powerPin = 12;
8 pinMode(powerPin, OUTPUT);
14 Serial.println(takeReading());
20 digitalWrite(powerPin, HIGH);
21 delay(10); // photoresistors are slow to respond
22 int reading = analogRead(inputPin);
23 digitalWrite(powerPin, LOW);