Xiaomi Ninebot follow mode with Arduino

Hi, I want to do with the arduino follow mode like Xiaomi Ninebot does.

In the following video you can see how it works https://www.youtube.com/watch?v=E6aX5Z6X6gw

I do not know how to do this. How will do? What sensors will you use?

Can somebody help me?

Thanks

jjuan_: Hi, I want to do with the arduino follow mode like Xiaomi Ninebot does.

[u]*In the following video you can see how it works *[/u]https://www.youtube.com/watch?v=E6aX5Z6X6gw

I do not know how to do this. How will do? What sensors will you use?

Can somebody help me?

Thanks

Sorry but No I don't see how it works. Just what it does. I find videos showing something operating with music playing, rather than voice over, show very little. You need to use Google and find an explanation. Tom... :)