I study electronics, and now I know single chip microcomputer, so I am also doing automation.
Generally speaking, people who make automatic machines and fixtures are divided into two aspects, one is electrical appliances, that is, control this piece, and the other is machinery. Generally, a piece of equipment is not made by one person, but by two or more people. You do the control and I do the mechanism. This kind of cooperation can be better. See what I mean? On the basis of your organic processing, I suggest that it is more appropriate for you to engage in system design. According to your previous experience, if you process more, you will have no advantage if you only process. If it can be designed, it will be another grade. And you said that you know cad, knowing CAD and social design are two concepts. Software is just a tool, just a tool to show what you think. So it's important for you to have a concept of fixture or automation, which is what I often tell others. The so-called concept is that when someone makes a request, you can immediately think of what to do to realize his request. If you have the energy, you can also learn circuits. People's energy is limited, and few people can get a piece of equipment from beginning to end. So I think you have to choose the right path and stick to it to get things done. If you know both, you might as well be good at one of them.
I hope I can help you. If you have done fixture or automation, you have the opportunity to communicate more. My QQ 393039253