Laser Trip Wire
prusaprinters
<p>Make your own laser motion detector. When the laser beam is broken, you can detect it and trigger some action like a bell or an email.</p> <p>By using multiple mirrors, it's possible to create a security perimeter.</p> <p>The laser and laser sensor are designed to fit on the same unit. The other unit is just a mirror.</p> <p>The mirror is from this ebay item: <a href="http://www.ebay.com/itm/Retro-Rose-Flower-Shape-Cosmetic-Makeup-Compact-Mirror-3D-Stereo-Double-Sided-B7-/191304244711?pt=LH_DefaultDomain_0&var=490415302758&hash=item2c8a9f1de7">http://www.ebay.com/itm/Retro-Rose-Flower-Shape-Cosmetic-Makeup-Compact-Mirror-3D-Stereo-Double-Sided-B7-/191304244711?pt=LH_DefaultDomain_0&var=490415302758&hash=item2c8a9f1de7</a>)</p> <p>The laser is: <a href="http://www.ebay.com/itm/Laser-head-sensor-Transmitter-Sensor-Module-for-Arduino-New-1PC-/400730216385?pt=LH_DefaultDomain_0&hash=item5d4d61d7c1">http://www.ebay.com/itm/Laser-head-sensor-Transmitter-Sensor-Module-for-Arduino-New-1PC-/400730216385?pt=LH_DefaultDomain_0&hash=item5d4d61d7c1</a></p> <p>The laser sensor is: <a href="http://www.ebay.com/itm/1-PCS-New-Laser-Sensor-Module-non-modulator-Tube-Laser-Receiver-Module-/390846857818?pt=LH_DefaultDomain_2&hash=item5b0049c25a">http://www.ebay.com/itm/1-PCS-New-Laser-Sensor-Module-non-modulator-Tube-Laser-Receiver-Module-/390846857818?pt=LH_DefaultDomain_2&hash=item5b0049c25a</a></p> Category: Household
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