DFROBOT 5V IR Photoelectric Switch Sensor
DFROBOT IR photoelectric switch for Arduino. 4m detection range, 0.5ms response, 5V operation. Ideal for motion & speed sensing.
The DFROBOT 5V IR Photoelectric Switch is a compact and efficient break-beam sensor designed for precise motion detection. It operates on the principle of an infrared beam between an emitter and a receiver unit. The emitter projects a beam of invisible infrared light, which is detected by the receiver. When an opaque object interrupts this beam, the sensor triggers a digital output signal, enabling reliable detection of movement, counting, or timing events.
This sensor is engineered for high performance, featuring an impressive sensing range of up to 4 metres with an extremely fast and stable response time of just 0.5 milliseconds. Its small form factor allows for installation in confined or narrow spaces, making it highly versatile for a wide range of projects. Constructed with robust components, it operates reliably within an extended temperature range from -10°C to +60°C.
Key Features & Applications
- Simple Integration: Powered by a standard DC 5V supply, it is perfectly suited for use with popular microcontrollers like Arduino, Raspberry Pi, and other development boards.
- Fast Response: The 0.5ms response time makes it ideal for high-speed applications such as robotics, speed detection in competitions, and precise event timing.
- Clear Identification: The transmitter unit features a green PCB, while the receiver has a black PCB, making it easy to distinguish during setup and wiring.
- Versatile Uses: Perfect for smart robot competitions, automated systems, security projects, industrial counting, and any scenario requiring non-contact object detection.
Technical Specifications
- Operating Voltage: DC 5V
- Output Current: 30mA
- Output Power: 100mW
- Wavelength: 830nm (Infrared)
- Sensing Mode: Thru-beam (detects non-transparent objects)
- Emitter Angle: Straight line
- Simple motion detection projects
- Speed detection in robotics or vehicles
- Precise event timing and counting
- Smart robot competitions
- Operating Voltage: DC 5V
- Output Current: 30mA
- Output Power: 100mW
- Sensing Range: 4m
- Wavelength: 830nm (Infrared)
- Sensing Mode: Thru-beam (for non-transparent objects)
- Emitter Angle: Straight line
- Receiver Angle: ±5°
- Response Time: 0.5ms
- Operating Temperature: -10°C to +60°C
- Transmitter Wiring: Red wire (5V), Black wire (GND), Green wire (floating)
- Receiver Wiring: Red wire (5V), Black wire (GND), Blue wire (output)
- Dimensions: 43mm (H) x 33mm (W) x 15mm (D)
- Weight: 8 grams
- Connection Method: Cable
- Transmitter: red wire-5V, black wire-GND, green wire-floating
- Receiving: red wire-5V, black wire-GND, blue wire-out
- Sensing Distance Max: 4m
- Sensing Method: Through Beam
- Supply Voltage DC Max: 5V
- Supply Voltage Max: 5V
- SVHC: No SVHC (04-Feb-2026)
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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