The simplest robots and their possible use.

The simplest robot can be made from scrap materials. for example, a toothbrush, a small battery and a motor can be made, something like a beetle . And if you make the brush bigger, you can make a cleaning robot .
So what am I doing? ah yes yes ... I was going to shoot a couple of short videos, well, something like a rozgrash. and I am going to pull on the "skins" of insects on small robots. and let in public places. later lay out the results of labor;)