first I want to know value when I use this code. I know this is law data, but I don't know unit and what is this.
when I use this code, I get 1742245.00 value
#include "HX711.h"
// HX711 circuit wiring
const int LOADCELL_DOUT_PIN =A0;
const int LOADCELL_SCK_PIN = A1;
This is very confusing , have you run any of the example codes with the hx711 library ?
The hx711 is intended to be used with a load cell and provides a digital signal to the Arduino. You need to set zero and calibrate the span to give the output you want.
Can you provide a circuit diagram of what you are doing ??
Also please post your code correctly using the code tags , easier for people to read and copy out