Hx711 Proteus Library -

Once your HX711 simulation works, enhance it:

You can also simulate a full IoT weighbridge by adding ESP8266 (with Proteus model) and MQTT.

Online simulators like Wokwi have built-in HX711 support. They are faster to start but limited to Arduino/ESP and lack advanced debugging. hx711 proteus library

#include "HX711.h"
HX711 scale;
void setup() 
Serial.begin(9600);
scale.begin(3, 2);  // DOUT = D3, PD_SCK = D2
scale.set_scale(2280.f);  // calibration factor
scale.tare();  // reset to zero
 Once your HX711 simulation works, enhance it:
void loop() 
float weight = scale.get_units(5);  // average of 5 readings
Serial.print("Weight: ");
Serial.println(weight);
delay(1000);

If no library works, use:

But for real HX711 behavior — library is best. You can also simulate a full IoT weighbridge