Ping)))

I want to count human activity with ping)))

What human activity? You want to count every time someone farts?

but I'm new with arduino and don't now how to.

Then, why did you pick this project?

Can you send my a code or a technical sketch.

If you post in Gigs and Collaboration, and offer to pay, and fully define your requirements (and they make sense), yes. Here, we help you get YOUR code to work.