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PIR Sensors And How To Use Them

Simple Electronics
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This video will quickly go over the operating principles of PIR sensors to get you to the point of being able to play with them yourself!

These neat little units that can be had for dirt cheap on EBay take the infrared energy that is thrown off of your body in order to trigger a logic (3.3v) level output, which can be used to activate a multitude of devices!

There are a few caveats however; 1: the power supply must be stable, I added a 470uF capacitor across the prower rails 2: the unit needs a few minutes to stabilize once it is powered up 3: there is a built-in time delay before it will re-trigger again

I'm sure that you will figure it out easily enough and be making your own projects in no time!

Thanks for watching!

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2020-05-07
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