/**
 * Complete project details at https://RandomNerdTutorials.com/arduino-load-cell-hx711/
 *
 * HX711 library for Arduino - example file
 * https://github.com/bogde/HX711
 *
 * MIT License
 * (c) 2018 Bogdan Necula
 *
**/

#include <Arduino.h>
#include "HX711.h"
#include <LiquidCrystal.h>

LiquidCrystal lcd(7, 8, 9, 10, 11, 12);

// HX711 circuit wiring
const int LOADCELL_DOUT_PIN = 2;
const int LOADCELL_SCK_PIN = 3;
const int LEDPIN = 4;

HX711 scale;

void setup() {
  Serial.begin(57600);

  Serial.println("Initializing the scale");
  Serial.println("Remove Any Weight from the scale");
  delay(1000);
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale(0.42);
  scale.tare();
  Serial.println("Scale Ready");

  Serial.println("Setting Up LCD");
  lcd.begin(16,2);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Urin Level:");

  Serial.println("Setting up Buzzer");
  pinMode(LEDPIN, OUTPUT);
  digitalWrite(LEDPIN, LOW);

  Serial.println("Ready");
}

void loop() {
  float reading;
  lcd.setCursor(0,1);
  reading = scale.get_units() / 1.010;
  lcd.print(reading);
  lcd.print(" Ml");

  if (reading >= 4000.0)
  {
    LEDON();
  } else{
    LEDOFF();
  }
  delay((500));
}

void LEDON() {
  digitalWrite(LEDPIN, HIGH);
  delay((200));  // Turn on the buzzer
  digitalWrite(LEDPIN, LOW);
}

void LEDOFF() {
  digitalWrite(LEDPIN, LOW);  // Turn off the buzzer
}