This IR Infrared Slotted Optical Sensor Module For Arduino is a must-have for any electronics enthusiast. It has a working voltage of 3.3-5.5V and uses an imported groove coupler sensor with a groove width of 5mm. When the sensor slots are blocked, the output is high and the light is off. When there is no shelter, the output is low and the light is on. It has a digital switching output (0 and 1) and uses an LM393 comparator output with a clean waveform and a driving ability of over 15mA. Plus, it has a fixed bolt hole for easy mounting.
