DIY Motion Activated Light
thingiverse
This is a straightforward motion-activated light that utilizes an attiny45 or attiny85, a PIR sensor, 12 LEDs, and several other components. Powered by four AA batteries, my estimates suggest it should last approximately two months on one set of batteries. The light turns on for thirty seconds when darkness is detected and motion is sensed. View the videos below for more detailed information. A concise explanation video can be found here: https://www.youtube.com/watch?v=8jszWSCRU8M For a comprehensive build tutorial, visit this link: https://www.youtube.com/watch?v=LJtMK_RjTzQ To acquire the necessary components, use these part links: PIR sensor: http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2082927_-1 attiny45: http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2151267_-1 Battery holder: http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_216187_-1
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