Fsuipc Python //free\\ -
Use Arduino to send button presses, and Python to bridge that to FSUIPC offsets to turn on lights in the sim.
The library's prepare_data() method uses a (offset, type) tuple, where common type codes include:
Writing data to the simulator is just as straightforward. You specify the offsets you want to change and provide the new values. The example below shows how to toggle the parking brake (a common task when you need to ensure the brake is set on the ground).
print("Pausing simulator...") client.write(0x0262, 1) fsuipc python
def set_parking_brake(engaged: bool): """ Engage or disengage the parking brake. FSUIPC offset 0x3102: 0 = brake off, 1 = brake on. """ with FSUIPC() as fsuipc: # Prepare a write operation: note the second argument is False. prepared = fsuipc.prepare_data([(0x3102, "B")], False) prepared.write([1 if engaged else 0]) print(f"Parking brake 'engaged' if engaged else 'released'")
To start, you need the FSUIPC interface software installed on your machine and the Python library in your environment. : Download and install FSUIPC7 for MSFS or the appropriate version for your sim. : Run the following command: pip install fsuipc 2. Basic Script Example
Many cockpit builders, third‑party developers, and enthusiasts have used FSUIPC over the years, but for a long time working with it meant writing code in C++, Delphi or Visual Basic. changes this. With the right library, you can read and write those same offsets—everything from aircraft position, control surface deflections, engine parameters and instrument readings—using the expressive, high‑level tools you already know and like in Python. Use Arduino to send button presses, and Python
: An alternative Cython-based module compatible with Python 3, though it is often noted as being in more experimental phases . Performance and Data Handling
You can find the full list of offsets in the document included in your FSUIPC installation folder. Common Examples 0x0570: Altitude (meters * 3.28084 to get feet) 0x02BC: IAS (Indicated Airspeed) 0x029C: Pitch 0x029E: Bank 0x3110: Transponder code (Write) 6. Advanced Usage: Writing to FSUIPC
The journey from reading a few offsets to building a complete application has a natural progression: The example below shows how to toggle the
Retrieve altitude, speed, GPS location, fuel levels, engine status, and more.
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Interfacing Python with FSUIPC provides an accessible pathway toward advanced aviation programming. By taking advantage of Python's vast library ecosystem (such as pandas for data analysis, matplotlib for flight path mapping, or PyQt for user interface design), you can construct sophisticated, professional-grade flight tools.
: For Microsoft Flight Simulator (2020) and MSFS 2024. FSUIPC6 : For Prepar3D v4 and v5. FSUIPC4 : For FSX and Prepar3D v1-v3.
if == " main ": main()