DFRobot
5V IR Photoelectric Switch (4m)
This IR break-beam photoelectric switch detects objects by sending an invisible infrared beam from an emitter to a receiver. When a non-transparent object pa...
This IR break-beam photoelectric switch detects objects by sending an invisible infrared beam from an emitter to a receiver. When a non-transparent object passes between the two and breaks the beam, the receiver outputs a signal. It works over distances up to 4 metres with a fast 0.5ms response time.
Powered by 5V DC, this sensor is compatible with Arduino and other microcontrollers for motion detection, speed measurement, timing, and counting applications. Its compact size allows installation in tight spaces.
Key Features
- Sensing Range – Up to 4 metres (thru-beam, non-transparent objects)
- Operating Voltage – DC 5V
- Response Time – 0.5ms
- Wavelength – 830nm (infrared)
- Receiving Angle – ±5°
- Output Current – 30mA
- Output Power – 100mW
- Operating Temperature – −10°C to +60°C
- Storage Temperature – −20°C to +80°C
Wiring
- Transmitter (green PCB) – Red: 5V, Black: GND, Green: floating
- Receiver (black PCB) – Red: 5V, Black: GND, Blue: signal output
Ideal For
- Motion detection and object counting
- Speed measurement and timing gates
- Robot runway conversion and line tracking
- Smart robot competitions
Package Contents
- 1× 5V IR Photoelectric Switch (transmitter + receiver pair)
Jargon buster
Plain-language definitions for the technical terms used above.
- break-beam
- A sensing method where an emitter sends a beam of light to a receiver, and an object is detected when it blocks the beam. It is useful for tripwires, counters, and object detection where you need a clear interrupted/not-interrupted signal.
- Motion detection
- A camera feature that checks the image for changes that suggest something has moved. It matters because your project can use movement as a trigger instead of constantly saving or processing every frame.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
Find this product in
Brands
Supplier page — dfrobot.com
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Related Tutorials
Free guides on learn.littlebird.com.au
