Description The M5Stack 180° Infrared Reflective Unit (ITR9606) is a compact 180° non-contact photoelectric limit switch for object passage detection, safety interlocks, and automated mechanical control. It uses an infrared transmitter and receiver placed on opposite sides so an object passing between them blocks the infrared beam and triggers a digital action signal. The M5Stack 180° Infrared Reflective Unit (ITR9606) is designed for Port B digital input applications and works well as a photoelectric counter, automatic door detector, or mechanical limit detection module. Its fork-style 180° sensing layout gives a clear beam path for detecting when material, cards, small parts, or other moving objects pass through the slot. Features 180° non-contact photoelectric limit switch Infrared transmitter and receiver on opposite sides Digital output for object passage detection Fast optical response for counting and limit sensing Suitable for Port B digital input projects Compact unit format with HY2.0-4P Grove interface Specifications Sensor Type 180° infrared photoelectric switch Sensor Component ITR9606 Output Signal Digital output Operating Temperature 0 ~ 40°C Product Size 36.0 x 24.0 x 8.8mm Product Weight 4.6g Package Size 138.0 x 93.0 x 9.8mm Gross Weight 10.0g Applications Automatic door detection Automated mechanical control Safety interlock sensing Photoelectric object counting Passage detection for small moving parts Product List 1 x Unit OP180 1 x HY2.0-4P Grove Cable (20cm) Other Content PinMap HY2.0-4P Wire Function Black GND Red 5V Yellow NC White Digital Output Resources Product documentation Arduino example UiFlow2 documentation EasyLoader example FAQ How does this reflective unit detect objects? It continuously sends infrared light from one side of the slot to the receiver on the opposite side. When an object blocks the beam, the unit generates a digital action signal. What is the difference between OP180 and a standard reflective sensor? OP180 uses a 180° fork-style transmitter and receiver layout, so the object is detected as it passes through the gap between the two sides. What projects is it suitable for? The M5Stack 180° Infrared Reflective Unit (ITR9606) is suitable for automatic doors, mechanical limit detection, safety interlocks, counters, and small object passage detection.
