#include "HX711.h"
#include <LiquidCrystal_I2C.h>
#include <RotaryEncoder.h> // biblioteca botao rotativo 
LiquidCrystal_I2C lcd(0x27, 16, 2); 

// variaveis botao rotativo
int valor;
int points;
RotaryEncoder encoder(0, 1);

const int LOADCELL_DOUT_PIN = 5;
const int LOADCELL_SCK_PIN = 17;
HX711 scale;
float calibration_factor = -1365;


void setup() {
  Serial.begin(115200);
  lcd.init(); 
    lcd.backlight(); 
    lcd.begin(16,1);
  
  pinMode(2, INPUT);
  Serial.begin(9600);
  Serial.println("Gire o encoder....");

  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale();
  scale.tare(); //Reset the scale to 0
  long zero_factor = scale.read_average(); //Get a baseline reading
  delay(1000);
}
void loop(){


  unsigned int ADC = scale.get_units();
  float weight = float(ADC) / 2100.00 * 5.00;
 // Serial.print("ADC = ");
  //Serial.print(ADC);
 // Serial.print(", weight = ");
 // Serial.println(weight);
  lcd.setCursor(2,1);
  lcd.print(weight);
  //lcd.print("kilos");
  lcd.setCursor(5,0);
  lcd.print("Dosador");
    static int pos = 0;
  encoder.tick();

  int newPos = encoder.getPosition();
  //Se a posicao foi alterada, mostra o valor
  //no Serial Monitor
  if (pos != newPos) {
    Serial.print(newPos);
    Serial.println();
    pos = newPos;
  }



}