// Library
 #include "HX711.h"
 #include <Wire.h> 
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
 //#include <HX711_ADC.h>

// Pin
  #define DOUT 3
  #define CLK 4
  const int lebar= 128; 
  const int tinggi = 64; 
  const int reset = 4;

 //CALIBRATION LOADCELL :
    #define calibration_factor 420 // BISA DIUBAH DARI NILAI KALIBRASI 
    float units;
    float ounces;
    byte mod = 0;  
    // 0 - PENGUKURAN
    // 1 - TARA
    // 2 - KALIBRASI
  
  // Serial in arduino 
   HX711 scale ;
   // HX711_ADC LoadCell(HX711_dout, HX711_sck);
   Adafruit_SSD1306 oled(lebar,tinggi,&Wire,reset);

  // declaration
   // int GRAM;
   float GRAM;

void setup() {
  // put your setup code here, to run once:
       Serial.begin ( 9600 );
       Serial.println ();
       Serial.print ("Load Kalibrasi");
       Serial.print ("Jangan ada benda apapun diatas loadcell");//Penting
       delay(1000);

       oled.begin (SSD1306_SWITCHCAPVCC,0x3C); 
       oled.clearDisplay();

       oled.setTextSize(2); 
       oled.setTextColor(WHITE);  

       // Skala 

       scale.begin (DOUT,CLK);
       scale.set_scale(calibration_factor); 
       scale.tare();


}

void loop() {
  // put your main code here, to run repeatedly:
     
   scale.set_scale(calibration_factor);
   GRAM = scale.get_units (2), 4; // GUNAKAN INI DAN UBAH ANGKANYA UNTUK CALIBRASI SAAT PENGAPLIKASIAN LOADCELL
   Serial.print (GRAM);
   //LoadCell.update();

   scale.set_scale(calibration_factor);
   Serial.print ("     GRAM");
   units = scale.get_units(), 10;

    { 
   units = 0.00;
 }
   
  ounces = units * 0.035274;
   Serial.println();
   oled.setCursor (40,0);
   oled.setTextSize(2); 
   oled.setTextColor(WHITE); 
   oled.println ("BERAT");
   oled.setCursor (40,25);
   oled.println (GRAM);
   oled.setCursor (40,48 );
   oled.println ("gram");
   oled.display();

}