need help with ir object detecor (reflect theory)?
i'm working on a small project using iri want to make an object detector for detecting people who stand in front of a door i don't want to use laser or ir beam cut theory
i want to use reflecting theory
so that the sender and reciver be in the same side
just as supermarkets doors
i have searched for many circuits but they all use cut theory
this site is my local store that have parts in my country