I'm looking to build a motion sensor which detects if an object is in the monitored area. Doing some researched I found out that I can use PIR motion sensor for this but it seems the area it monitors is pretty small.
I need something that can monitor about 3 feet x 1 feet area. Is there something else that I can use for this?
My goal is to light up some LED lights when an object is detected in that area.
Thanks in advance.