Basic Pulse Wheel

Going a mite bit more complex this week... This is a basic pulse wheel for DIY projects. These little guys are commonly used in electronics to detect the velocity and direction of rotational motion without inserting drag or friction into the system, like a roller detector would cause. You simply shine an LED, laser or other light source through the slits on one side of the wheel and detect it with a photosensor on the other side, and then send the pulses to whatever you need to do detection and