Need help with my PIR projet

Hi,

I am plannign to build a PIR sensors for my project. It requires to have 4 HC-SR501 PIR sensors. Each has to detect different motion of each person. They are used to turn on/off the screen of monitor. I am wondering which Arduino board is useful to install all 4 PIR sensors on one board. I dont have have 4 boards for 4 sensors.

Regards,

Alex.

Any Arduino board can take 4 sensors.

Each has to detect different motion of each person.

How is that going to happen?

I think you need to explain a bit more or what you're planning (or rather, hoping?) to do.