Hi Everyone!
I'm looking for a circuit that is mounted on a doorframe somehow and then if someone walks into a room, it adds up and if someone leaves the room it subtracts. In other words, it counts the amount of people currently in the room. It must be able to count over 400 and it must display on a 7 segment display, or similar. Does anyone know of a circuit that can do this? Another addition to the circuit, if possible, I would like to connect it to a computer and count it up on a pc.
Thanks a lot!
Frank.
I'm looking for a circuit that is mounted on a doorframe somehow and then if someone walks into a room, it adds up and if someone leaves the room it subtracts. In other words, it counts the amount of people currently in the room. It must be able to count over 400 and it must display on a 7 segment display, or similar. Does anyone know of a circuit that can do this? Another addition to the circuit, if possible, I would like to connect it to a computer and count it up on a pc.
Thanks a lot!
Frank.