Just thought I'd throw this out there as this was something we had back in the day(80s). A fine specimen to see how it was done back then and how simple it was as well. This was something that was sold on the market for big bux....it's pretty amazing that we've come to the point where we can make these things(or something simlar) ourselves.
It had a simple instruction control and no object detection.
It would be an interesting base if you can get your hands on one...