hi,
I have used the HX711 many times.
This is a simple example of an Arduino Sketch.
E

#include "HX711.h"

HX711 scale;

void setup() {
  Serial.begin(38400);
  Serial.println("HX711 Demo");

  Serial.println("Initializing the scale");
  // parameter "gain" is ommited; the default value 128 is used by the library
  // HX711.DOUT    - pin #A1
  // HX711.PD_SCK    - pin #A0
  scale.begin(A1, A0);

  Serial.println("Before setting up the scale:");
  Serial.print("read: \t\t");
  Serial.println(scale.read());            // print a raw reading from the ADC

  Serial.print("read average: \t\t");
  Serial.println(scale.read_average(20));      // print the average of 20 readings from the ADC

  Serial.print("get value: \t\t");
  Serial.println(scale.get_value(5));        // print the average of 5 readings from the ADC minus the tare weight (not set yet)

  Serial.print("get units: \t\t");
  Serial.println(scale.get_units(5), 1);    // print the average of 5 readings from the ADC minus tare weight (not set) divided
                        // by the SCALE parameter (not set yet)

  scale.set_scale(2280.f);                      // this value is obtained by calibrating the scale with known weights; see the README for details
  scale.tare();                        // reset the scale to 0

  Serial.println("After setting up the scale:");

  Serial.print("read: \t\t");
  Serial.println(scale.read());                 // print a raw reading from the ADC

  Serial.print("read average: \t\t");
  Serial.println(scale.read_average(20));       // print the average of 20 readings from the ADC

  Serial.print("get value: \t\t");
  Serial.println(scale.get_value(5));        // print the average of 5 readings from the ADC minus the tare weight, set with tare()

  Serial.print("get units: \t\t");
  Serial.println(scale.get_units(5), 1);        // print the average of 5 readings from the ADC minus tare weight, divided
                        // by the SCALE parameter set with set_scale

  Serial.println("Readings:");
}

void loop() {
  Serial.print("A= ");
  Serial.print(scale.get_units(), 1);
  Serial.print("  Avg= ");
  Serial.println(scale.get_units(10), 1);

// scale.power_down();                    // put the ADC in sleep mode
  delay(1000);
// scale.power_up();
}

Thank you! I will try it out today

 

I know nothing about electronics but this was helpful to me: https://www.rs-online.com/designspark/using-the-ina125p-instrumentation-amplifier-with-a-load-cell

Also the HX711 which ships with the load cell works straight of the box: https://www.ebay.co.uk/itm/314541831911?var=613097026383 I used it with: https://www.ebay.co.uk/itm/296376275808