PIR Sensors Driving Large Loads
Simple Electronics
In this video I'll show you how to drive larger loads with PIR sensors, since it is not a good idea to use their output pins to drive loads directly. Make sure you watch part 1 before this video!:
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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