Grove - Light Sensor

#define THRESHOLD_VALUE 15000  // The threshold to turn the led on

int lightSensorPin = 0;     // Sensor connected to this analog pin
int ledPin = 4;             // LED connected to this digital pin number
int sensorValue;           // variable to store the value read

void setup()
{
    pinMode(ledPin, OUTPUT);    // sets the digital pin as output
    //Serial.begin(115200);        // initialize the uart to 115200 baud
}

void loop()
{
    sensorValue = analogRead(lightSensorPin);    // read the input pin
    if(sensorValue > THRESHOLD_VALUE){
        digitalWrite(ledPin, HIGH);        // sets the LED on
    }else{
        digitalWrite(ledPin, LOW);        // sets the LED off
    }
    delay(200);    // wait this many milliseconds
    //Serial.println(sensorValue);            // display on serial terminal
}