Thanks for the response. I am actually referring to 3rd party hardware that I am viewing with my iOS device. I am using ARKit to detect the 3rd part hardware and show a virtual representation of how those different pieces of hardware are connected to each other. So I need a way to detect them and a way of showing those connections. I am currently using SceneKit to draw the virtual connections. For the detection, I am thinking of using a QR type of solution, but wondering if there is something better.