SimpleBLE for Unreal — Cross-platform BLE for UE 5.4–5.8

Development Pipeline & Plugins
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Hi all!

For those who don’t know me: I’m the creator of SimpleBLE, a cross-platform Bluetooth Low Energy library built out of our own frustration with the ecosystem. We now have an Unreal plugin on Fab for people who need BLE from Blueprint or C++ without owning the OS glue on every target.

What it is, concretely: a BLE central. Scan, connect, inspect services/characteristics, then read, write, and subscribe to notifications. Same workflow on Windows, macOS, Linux, iOS, and Android. Built for UE 5.4 through 5.8.

Shape of the API (illustrative) in C++, Blueprints use the same operations:

// AHeartRateActor::BeginPlay()
auto adapter = SimpleBLE::Adapter::get_adapters()[0];
adapter.scan_for(5000);

auto peripheral = adapter.results()[0];
peripheral.connect();

peripheral.notify(hr_svc, hr_char, [this](ByteArray data) {
    // live sensor data into Unreal
});

We think this is great for projects that want to incorporate real-life devices into their environments or AR/VR setups, things like fitness trackers, haptics, wearables or even companion apps for custom hardware.

Honest limits:

  • BLE only — not Classic serial (SPP), not HID gamepad pairing.
  • Central only — for now, Peripheral mode is in the works but not ready for prime time yet.
  • Quest support — is still considered experimental. If you are on Quest, reach out and we’ll do our best to support your needs.

Important Links:

Want to know more about SimpleBLE’s capabilities or see what others are building with it? Ask away!