| Pin Name | Description | Connect to | |----------|-------------|-------------| | VSUP | Power supply (2.7V – 5.5V) | +5V | | PD_SCK | Serial clock input | Any MCU pin (e.g., Arduino D6) | | DOUT | Serial data output | Any MCU pin (e.g., Arduino D5) | | VFB | Feedback input | Leave unconnected or GND | | AGND | Analog ground | GND | | VGND | Voltage ground | GND | | VIN- | Load cell input (-) | Load cell White wire | | VIN+ | Load cell input (+) | Load cell Green wire | | BASE | Reference | Leave unconnected | | VAVDD | Analog power | Optional – connect to +5V via 0.1µF cap |
While the downloaded libraries allow for functional simulation, limitations exist:
If your main goal is to test your code’s calibration or display logic, you can remove the HX711 from the simulation entirely. Replace it with a signal generator that emulates the 24-bit serial data stream of the HX711. This allows you to verify that your microcontroller correctly interprets the data without needing an actual HX711 model. hx711 proteus library download
Once the HX711 library files are downloaded, they must be manually integrated into the Proteus installation directories.
A recognizable 16-pin IC shape to place on your schematic. | Pin Name | Description | Connect to
Without a dedicated simulation model, you cannot test your load cell circuit virtually. Hence, downloading a third-party becomes essential for:
: Minimizes electronic component waste by identifying circuit design flaws early. Once the HX711 library files are downloaded, they
Optional: .HEX or model source files required for active simulation animation. 3. Step-by-Step Installation Guide
Proteus does not include a stock HX711 model in its default component marketplace. To test a digital scale project before buying physical hardware, you must install custom simulation files ( .IDX , .LIB , and sometimes .HEX or .MDF files) that mimic the real-world behavior of the chip. How to Download and Install the HX711 Proteus Library Step 1: Download the Library Files
Close all active instances of Proteus. Relaunch the software to force the component database to refresh and index the new files. Building the Simulation Circuit