Description The M5Stack 90° Infrared Reflective Unit (ITR9606) is a compact OP90 90° 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 through the sensing path blocks the infrared beam and triggers a digital action signal. The M5Stack 90° Infrared Reflective Unit (ITR9606) is designed for Port B digital input projects and works well as a door switch, photoelectric counter, scanner detector, or mechanical limit detection module. Its right-angle sensing layout is useful when the installation requires a 90° optical path rather than a straight-through fork layout. Notice: The output is 1 when the sensor is blocked. Features 90° non-contact photoelectric limit switch Infrared transmitter and receiver for object passage detection Digital output for counters, interlocks, and limit sensing Fast response time and high sensitivity Suitable for Port B digital input projects Compact unit format with HY2.0-4P Grove interface Specifications Sensor Type 90° infrared photoelectric switch Sensor Component ITR9606 Output Signal Digital output Operating Temperature 0 ~ 40°C Product Size 32.0 x 24.0 x 12.8mm Product Weight 4.2g Package Size 138.0 x 93.0 x 12.8mm Gross Weight 9.6g Applications Automatic door detection Automated mechanical control Safety interlock sensing Photoelectric object counting Scanner, copier, and non-contact switching projects Product List 1 x Unit OP90 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 toward the receiver. When an object blocks the infrared signal, the unit generates a digital action signal. What is the difference between OP90 and OP180? OP90 uses a 90° sensing layout for right-angle installations, while OP180 uses a straight-through 180° transmitter and receiver layout. What projects is it suitable for? The M5Stack 90° Infrared Reflective Unit (ITR9606) is suitable for automatic doors, mechanical limit detection, safety interlocks, counters, scanner detection, and small object passage detection.
