How to Build a PIR (passive infrared) motion alarm with MAKE

Jul 8, 2010 09:15 PM
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Want to build your own infrared motion detector? It's easier than you think! So easy, in fact, that this video tutorial from MAKE can present a complete overview of the build in under five minutes! For more information, including a full list of materials and detailed, step-by-step instructions, and to get started building your own passive infrared motion alarm, take a look.

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