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How to build an optical/light barrier with the Arduino, the Keyes laser module (KY-008) and a laser receiver/detector module - Michael Schoeffler
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Amazon.com: 3 Pack KY-008 650nm 5V Laser Sensor Module for Arduino With Demo Code : Industrial & Scientific
![How to build an optical/light barrier with the Arduino, the Keyes laser module (KY-008) and a laser receiver/detector module - Michael Schoeffler How to build an optical/light barrier with the Arduino, the Keyes laser module (KY-008) and a laser receiver/detector module - Michael Schoeffler](https://mschoeffler.com/wp-content/uploads/2017/01/Laser_detector_schematic.jpg)
How to build an optical/light barrier with the Arduino, the Keyes laser module (KY-008) and a laser receiver/detector module - Michael Schoeffler
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