Detector Module

IR circuit?

Hi, anyone has a IR detector circuit that is working? I have a 40khz IR transmitting signal. Need to design a detector circuit to detect number of objects that passby. Am using a 3-legged IR receiver module and working base on 5Vdc. Thank you.

If you have the detector module 98 % of the work is done all you need to do is connect the output to a digital counter. A PIC micro or some such could easily not only do the counting but also the display.

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