#define LDR_PIN 7
void setup() {
  Serial.begin(115200);
  pinMode(LDR_PIN, INPUT);

}

void loop() {
  if(digitalRead(LDR_PIN)==LOW){
    Serial.println("Dark detected");
  } else{
    Serial.println("light detected");
  }
  delay(1000);
  // put your main code here, to run repeatedly:

}