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  1. alternatives to PIR motion detector? photo sensor pairs?

    Aug 20, 2009 · Look up 'missing pulse detector' here or on the net to see what to do with the sensor output. 5) Note that the transmitter and receiver can be independent, and on different …

  2. Motion-detector-sensor-circuit | Electronics Forum (Circuits, …

    May 14, 2019 · PIR Sensor Based Motion Detector/Sensor Circuit We have built a very simple Motion detector circuit here. We are using a HC-SR501 PIR Sensor, an LED (which will glow …

  3. Using a motion sensor (in my garden) to trigger a door bell in the ...

    Aug 6, 2017 · The motion sensor is typically called a PIR sensor or just plain motion-sensor. This is not to say the system must be low voltage DC only to say it's a good idea in the interest of …

  4. Trouble with wiring Motion Sensors | Electronics Forum (Circuits ...

    Dec 13, 2019 · I'm attempting to set up and wire 8 PiR motion sensors, however by the wiring diagram, some of the terms used for some of the wires kind of confuse me a lot. One brown …

  5. Beam Break Sensor | Electronics Forum (Circuits, Projects and ...

    Jun 18, 2022 · I am a college student doing hobby project, I need to design an IR bream break detector which would work with IR Transmitter and IR Receiver to detect beam break between …

  6. how to fool a motion sensing lighting control | Electronics Forum ...

    Jun 23, 2010 · I am in need of a circuit to "fool" a motion sensing lighting control. I have a motion sensing lighting control in my office which unfortunately is behind a bookshelf and so I have to …

  7. Delay Circuit for PIR Motion Sensor | Electronics Forum (Circuits ...

    May 27, 2017 · Hello dear friends. I need your valuable help for a little circuit I'm designing. It is a small circuit to incorporate a delay to a PIR motion sensor that activates a spray that releases …

  8. Motion activated ON/OFF switch for Science Fair project

    Jan 17, 2006 · We need a motion detector (or some sort of sensor that is activated by an interupted beam rather than by physical contact), that can alternately trigger this On/Off …

  9. Pir sensor and 555 timer | Electronics Forum (Circuits, Projects and ...

    Sep 20, 2010 · ericgibbs' circuit, of course, is actually designed for a PIR motion detector, so his would probably work better. The circuit at the link above is quite simple, however, and should …

  10. motion sensor for daylight use | Electronics Forum (Circuits, …

    Jul 20, 2014 · Is there such a device that is relativity cheap but laser is to dangerous for application intended. Most sensors use IR which during daylight use is perhaps worthless. …