[PREVIEW] Asynchronous Serial Communication (Patreon)

The past weeks have been exceptionally busy. A big thanks to all the patrons who have waited patiently for this tutorial. To make up for the long wait, this post is available for preview to all patrons. The password is "ilovetutorials". 

In a previous post, How To Integrate Arduino With Unity, we have shown how data can be sent and received through the serial port. The main problem encountered was dealing with the latency and the delays that communicating across different devices introduces. The solution proposed in that tutorial used a coroutine; decoupling the device communication from the game logic attenuates the problem, but it doesn’t remove it. The main problem is that, despite the name, Unity coroutines are not really executed in parallel with the rest of the game. Unity, by design, is not thread safe. This means that true parallelism is intentionally avoided by the engine, as it could result in race conditions. To solve the problem of the communication between Unity and Arduino, once and for all, we need actual threads.

• Step 1. Creating the Thread
• Step 2. Callbacks and Queues
• Step 3. Queue Communication
• Step 4. Thread Loop
• Step 5. Improvements
• Conclusion

As always, thank you for your support. ♥