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  1. 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 …

  2. 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 …

  3. 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 …

  4. 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 …

  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. 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 …

  7. PIR to PC817 210112 | Electronics Forum (Circuits, Projects and ...

    Jan 12, 2021 · Add Motion Detection to Your Arduino Home Security Project Using HC-SR505: Hi folks. We've been working on a home automation/security project where we've used the HC …

  8. Light Dark sensor circuits and LTSpice simulation

    Apr 3, 2015 · A very useful sensor that keeps a relay on in the day with little power and turns off at night allowing NC relay contacts to make and power whatever. Here is DIy Layout creator pics …

  9. How to decrease ir receiver sensitivity | Electronics Forum (Circuits ...

    Jan 29, 2013 · You can do it easily with geometry. Just get an IR opaque tube and attach it to the sensor of the IR detector. That will increase directionality and prevent detection of reflected …

  10. Please help me to build a code for a HB100 radar sensor

    Mar 16, 2021 · Hello all, I'm trying to build a vehicle speed detector using a HB100 radar sensor but I couldn't find a proper code for this. I tried with few codes found...