@NickMaddock Howdy. I know this thread is old, but I just got a couple of these units thinking they would not be hard-wired terminated, too. I guess the lesson for me is to read the schematic even when it seems apparent that you would not want these always to be terminated on each unit.
Were you able to find a way to make these work how you wanted? I noticed in the demo video that you could have more than two devices hooked up and that they have two rollercan units connected to an M5Stack Core. Since there is no other documentation, I am assuming that the Core is not terminated, and thus, the three devices shown in the demo video would work together with no issues.
Unless there is an easy way to hook these up non-restrictively, I am glad I did not buy more than two. The motors seem nice in every other way,
