This is a quick and dirty plugin for allowing Unity3D games to access BlueTooth Low Energy (BLE) peripherals and subscribe to specific characteristics at those peripherals.
The bulk of this code (all?) was written by Pekka Nikander in August 2018, as a part of Aalto University NEPPI course.
This code is not production quality. However, it contains a few
interesting aspects for Unity3D plugin developers, such as how to use
C# SafeHandle objects and how to pass C# object references for the
native code to retain and pass back, using GCHandle.
For the time being (expect this to be fixed), the C# code is not in this repository but in the parent reposity. Why? Since Unity3D (version 2018.2) is silly in how it detects when it needs to recompile C# code.