UniversalSerial v1.3.0 Release: Automatic Detection of Communicable Serial Ports

We have released UniversalSerial v1.3.0, the serial communication plugin for UnrealEngine.

In this update, we focused on a new feature that simplifies connected-device identification, along with stability improvements for real-world operation.

Key Changes in v1.3.0

Added Automatic Detection of Communicable Serial Ports

In v1.3.0, we added Find First Communicable Serial Port (and its Binary variant).

This feature tries candidate ports connected to your PC in order and returns the first port that can actually communicate.

By setting a probe command and expected response, you can verify not only whether a port opens, but also whether the target device returns the expected response before selecting the port.

Improved Stability Around Port Discovery and Send/Receive

In addition to the new feature, v1.3.0 includes several stability improvements.

• Improved write behavior on Windows
• Improved receive/port-discovery behavior on Linux and macOS
• Improved handling of read errors during connection transitions

These changes make connection and reconnection behavior more robust in real-device workflows.

Expanded Real Hardware Testing

We added and expanded real-device hardware tests to strengthen validation for this release.

This improves confidence not only in development environments but also in practical device communication scenarios.

Summary

With UniversalSerial v1.3.0, you can now automatically identify communicable serial ports, making initial connection setup much simpler.

Combined with stability improvements and stronger hardware testing, this release is more reliable for production use.

Download

UniversalSerial v1.3.0 is available on Epic Games Fab. If you already purchased it, you can access v1.3.0 via update.

For plugin details, please visit the plugin page.

If you have questions or feedback, please contact us via the Support page.