It’s spam all right – UI Robot is a Shanghai company that sells stepper motor controllers. I got a kick out of their website -
“We advocates the philosophy of modular design and manufacture…”
“R & D staff of UI Robot is from the United States…”
“We hopes to develop new ideas and new realms in the filed of robotic research/manufacturing…”
Mechanically – their stuff looks pretty good. Based on the copy laid down on the website by the ‘U.S. R & D staff’ though – I think for now, I’ll stick with the stepper controllers I’ve been using.