const int LDRPin = 2;
const int LEDPin = 7;

void setup() {
  // put your setup code here, to run once:
  pinMode(2, INPUT);
  pinMode(7, OUTPUT);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(LDRPin)==HIGH) {
    digitalWrite(LEDPin, HIGH);
  }else {
    digitalWrite(LEDPin, LOW);
  }
  Serial.print("Sensor value:");
  Serial.print(analogRead(A0));
  Serial.print("\n");
}