#include <HX711.h>
#include <Tone.h>

const int LOADCELL_DOUT_PIN = 2;
const int LOADCELL_SCK_PIN = 3;
const int BUZZER_PIN = 4;

HX711 scale;
Tone toneGenerator;

void setup() {
  Serial.begin(9600);
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop() {
  float weight = scale.get_units();  // Read the weight from the load cell
  Serial.println(weight);

  if (weight > 25.0) {
    toneGenerator.begin(BUZZER_PIN);  // Start generating the tone
    delay(1000);  // Sound the alarm for 1 second
    toneGenerator end();  // Stop the tone
  }

  delay(500);  // Wait for 0.5 seconds before taking another reading
}