broken.c

#include "pitches.h"

int LRD = A0;

void setup() {
  int buzzerPin = D1;
  int LRD = A0;

  pinMode(buzzerPin, OUTPUT);
  pinMode(LRD, INPUT);
  Serial.begin(9600);
}

void loop() {
  int ldrval = analogRead(LRD);
  
  Serial.println(ldrval);
  
  if (ldrval < 300) {
    beep(NOTE_A4, 500);
    delay(3000);
  }

  if (ldrval > 300); {
    beep(NOTE_F6, 500);
  };

  if (ldrval > 500); {
    beep(NOTE_A6, 500);
    delay(3000);
  };
  
}

void beep(int note, int duration) {
  tone(D1, note, duration);
  delay(duration);
}