Waveshare Infrared Reflective Sensor


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 1219072
  1. Voltage: 3.0V ~ 5.3V
  2. Reflective Infrared Transceiver
  3. I/O Pin: Digital, Analog, GND, VCC
  4. obstacle avoidance car
  5. black and white lines tracking device
  6. Dimension: 25mm * 15.9mm
  7. Mounting holes size: 2.0mm


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Category: PIR / IR and Optical Sensor

The reflective module with IR sensor is equipped with digital and analogue output. It works with a voltage from 3 V to 5.3 V. It enables the detection of obstacles in the range from 0 to 30 mm.

An infrared sensor contains two parts: an infrared transmitter and an infrared receiver, the infrared transmitter consists of an infrared LED array as a luminophore and a PN junction made of a special material with high infrared radiation efficiency, which usually is GaAs. When a current injected into the PN junction by forward bias voltage, it can excite a source of infrared light with a center wavelength range of 830nm-950nm. The power of the infrared light excited is proportional to the current injected. However, in the case that the injected current excesses the maximum rating, the power of the infrared light may decline as the current increases. The infrared receiver is a semiconductor device for translating the infrared light signal into the electrical signal. And the core component of it is a PN junction made of a special material. Its PN junction has a different structure from the general purpose diode, enabling more infrared light to be received. As the
intensity of the infrared light enhances, more current can be generated.


  1.  intellectual robot
  2. obstacle avoidance car
  3. counter device in the pipeline
  4. black and white lines tracking device


  1. Reflective Infrared Transceiver
  2. Features wide-range voltage comparator LM393
  3. Adjustable sensitivity
  4. Signal output indicator

Package Includes:

1 x Waveshare Infrared Reflective Sensor

1 x 4-pin custom connector jumper wire

SKU: 1219072 Category:
Operating Voltage (V)

3.3V ~ 5V

Detection range

2cm ~ 30cm (depending on the obstacle's color, farthest for white)

View angle



Aout, Dout, GND, VCC

Baud rate


Mounting Holes Diameter (mm)

3mm / 0.12 inch

Data bits


Dimensional Accuracy (mm):

39mm × 15.5mm (include the IR LED)

Shipping Weight 0.001 kg
Shipping Dimensions 5 × 4 × 1 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China

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