//Start By The Name Of Allaha
//This Code is written for Weighing scale by Technical minds
#include <HX711_ADC.h>
#include <LiquidCrystal_I2C.h>
#if defined(ESP8266)|| defined(ESP32) || defined(AVR)
#include <EEPROM.h>
#endif
//pins:
const int HX711_dout = 5;                    //mcu > HX711 dout pin
const int HX711_sck =18;                    //mcu > HX711 sck pin
const int tpin = 15;                        // the pin that the tare pushbutton is attached to
//HX711 constructor:
HX711_ADC LoadCell(HX711_dout, HX711_sck);
//LCD_12C:
LiquidCrystal_I2C lcd(0x27, 2, 16);
//EEPROM:
const int calVal_eepromAdress = 0;
unsigned long t = 0;
// Setup:
void setup() {
  Serial.begin(57600); delay(10);
  //Serial.println();
  //Serial.println("Starting...");
  pinMode(tpin, INPUT_PULLUP);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(3, 0);
  lcd.print("BIN SHARIF");
  lcd.setCursor(1, 1);
  lcd.print("WEIGHING SCALE");
  delay(2000);
  lcd.clear();
  //Start weighing: 
  LoadCell.begin();
  //LoadCell.setReverseOutput(); //uncomment to turn a negative output value to positive
  unsigned long stabilizingtime = 2000; // preciscion right after power-up can be improved by adding a few seconds of stabilizing time
  boolean _tare = true; //set this to false if you don't want tare to be performed in the next step
  LoadCell.start(stabilizingtime, _tare);
  if (LoadCell.getTareTimeoutFlag() || LoadCell.getSignalTimeoutFlag()) {
    Serial.println("Timeout, check MCU>HX711 wiring and pin designations");
    while (1);
  }
  else {
    LoadCell.setCalFactor(420.0); // user set calibration value (float), initial value 1.0 may be used for this sketch
    Serial.println("Startup is complete");
  }
  while (!LoadCell.update());
}

void loop() {
  static boolean newDataReady = 0;
  const int serialPrintInterval = 0; //increase value to slow down serial print activity

  // check for new data/start next conversion:
  if (LoadCell.update()) newDataReady = true;

  // get smoothed value from the dataset:
  if (newDataReady) {
    if (millis() > t + serialPrintInterval) {
      float i = LoadCell.getData();
      Serial.print("Load_cell output val: ");
      Serial.println(i);
      newDataReady = 0;
      t = millis();
      lcd.setCursor(0, 0);
      lcd.print("BIN SHARIF SCALE:");
      lcd.setCursor(0, 1);
      lcd.print("WEIGHT :");
      lcd.setCursor(9, 1);
      lcd.print(i);
      lcd.setCursor(14, 1);
      lcd.print("KG");
    }
  }
if (digitalRead(tpin) == LOW) {
    LoadCell.tareNoDelay();
  }
  // check if last tare operation is complete:
  if (LoadCell.getTareStatus() == true) {
    lcd.clear();
    lcd.print("Tare complete");
    delay(1000);
    lcd.clear();
  }
 
}