Light Sensor

gistfile1.txt

int State=0;

void setup() {
  pinMode(5,OUTPUT);  // Set Digital pin 5 to output
}

void loop() {
  int sensorValue = analogRead(A0); // Read analog value off of photoresistor
  float voltage = sensorValue * (5.0 / 1023.0); // Calculate voltage with a resolution of 1023
  if(voltage<3){ //not recording
    if (State==0){
      digitalWrite(5,HIGH); // Toggle record state
      delay(50);
      digitalWrite(5,LOW);
      State=1;
    }
  }
  if (voltage>3){ // recording
    if (State==1){    
      digitalWrite(5,HIGH); // Toggle record state
      delay(50);
      digitalWrite(5,LOW);
      State=0;
    }
  }
  delay(1000);
}