ultrasonic sensor

I am doing a project and in it, I need to use two ultrasonic sensors to determine if a person has entered or exited the room. I struggle a bit with the coding.
can you guys help me, please?
thanks

Certainly. Post the code that you have tried and explain what it does and what you want it to do that is different. Then we can help.

Or if you mean that you want someone to write the code for you try posting in the "Gigs and collaborations" forum and be prepared to spend some money.

Steve