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

Build a PIR (passive infrared) motion alarm with MAKE

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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