4.19 binaries released! (click here)](https://github.com//UE4Duino/releases/tag/v2.2.1)
@_joey Hand Shaking and SerialCallResponse are protocols. They are surely helpful. I’ve done something like that before to keep several ints in sync between Unreal and Arduino. If you’re willing to pay for some help, I do consulting through Skype. My nick is r_skull