// SABRILLA AGDESTIA
// FISIKA
// +++++++++++++++++++++++++++++++++++++++++++++++++++

#include <HX711.h>
const int pinDOUT = 2;
const int pinSCK = 3;
HX711 scale;

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

int btn = 5;
#define button digitalRead(btn)==0

const int buzzer = 4;

// SABRILLA AGDESTIA
// FISIKA
// +++++++++++++++++++++++++++++++++++++++++++++++++++
void setup() {
  Serial.begin(9600);
  scale.begin(pinDOUT,pinSCK);
  scale.set_scale(4.2);
  scale.tare();

  lcd.init();
  lcd.backlight();

  pinMode(btn, INPUT_PULLUP);

  pinMode(buzzer,OUTPUT);
  Serial.println("SABRILLA AGDESTIA");
  Serial.println("==FISIKA==");
    lcd.setCursor(0,0);
    lcd.print("SABRILLA AGDESTIA");
    lcd.setCursor(0,1);
    lcd.print("==FISIKA==");
    delay(2000);
    lcd.clear();
}


// SABRILLA AGDESTIA
// FISIKA
// +++++++++++++++++++++++++++++++++++++++++++++++++++
void loop() {
  if (button) {
        while (button) {}
        lcd.clear();
        lcd.setCursor(0,0);
        lcd.print("Tare");
        delay(1000);
        lcd.clear();

      scale.tare(); 

        delay(200);
      }
  if(scale.is_ready()) {
    long reading = scale.get_units(10);
    float kg_sample = float(reading) / 100;
    float kg_tampil = kg_sample + 0;
    Serial.print("Berat Terbaca: ");
    Serial.print(kg_sample,2);
    Serial.println(" Kg");
    Serial.print("Berat Ditampilkan: ");
    Serial.print(kg_tampil,2);
    Serial.println(" Kg");

    lcd.setCursor(0,0);
    lcd.print("Berat Beban");
    lcd.setCursor(0,1);
    lcd.print(String(kg_tampil,2) + " Kg ");

    if(kg_tampil > 29) {
      tone(buzzer,200);
      delay(200);
      tone(buzzer,400);
      delay(100);
    }
    else {
      noTone(buzzer);
    }
  }
  delay(100);
}

// SABRILLA AGDESTIA
// FISIKA
// +++++++++++++++++++++++++++++++++++++++++++++++++++