// Arduino Light sensor code created by AR Builder.
//#include <SoftwareSerial.h>

int pinLED = PB2;                       // Declare the  pinLED PB2 as an OUTPUT 
int pinLIGHTSens = 3;                   // Declare the pinLIGHTSens as an INPUT

// Setting variables 
int sensorValue = 0;                    //Variable to store the value coming from the light sensor
int threshold = 200;

void setup() {

 pinMode(pinLED,OUTPUT);
 pinMode(pinLIGHTSens,INPUT);
 
 digitalWrite(pinLED, HIGH);
  
//Serial.begin(9600);                   // Set and start serial port for communication
}
void loop() {
sensorValue = analogRead(pinLIGHTSens); // Read the value from the sensor

//Display serial results in serial monitor:
//Serial.println(sensorValue);          // Prints the values coming from the sensor on the screen

  if (sensorValue < threshold) {        // Change 100 to the number depending on the light in your area
    digitalWrite(pinLED, HIGH);
  }
  else {
    digitalWrite(pinLED, LOW);
  }
delay(100);
}