Unit Reflective IR

SKU:U175

Description

Unit Reflective IR is a self-contained infrared sensor unit primarily used to detect the reflected infrared light from target objects and indicate the detection status through analog and digital signal outputs. Its unique design incorporates an onboard adjustable potentiometer that allows users to fine-tune the sensitivity of the digital output, providing flexibility and precision for various applications. This product is suitable for object detection, line tracking, distance measurement, and automation systems.

Note: The potentiometer on the back is used to adjust the detection distance (sensitivity). The threshold comparison voltage (1.65V) has been pre-adjusted via the potentiometer before leaving the factory. Please do not adjust the potentiometer unless necessary. The effective range of the threshold comparison voltage is 0.3V≥1.65V≤2.15V. Exceeding this range will result in the red LED staying on when >2.15V or not lighting up when <0.3V, causing detection failure. (The potentiometer voltage can be measured at the inverting input of the LM393 comparator in the schematic.)

Features

Infrared Sensing Technology: Utilizes advanced infrared technology to efficiently and accurately detect reflected infrared light from target objects.
Analog Signal Output: Generates corresponding voltage values based on the intensity of the reflected infrared signal from obstacles, using an infrared receiver tube and a 10k resistor voltage divider.
Digital Signal Output: Integrates an LM393 comparator to convert analog signals into reliable digital signals, facilitating processing and interpretation in digital systems.
LED Indicator: The digital signal controls an LED indicator, providing a visual representation of the sensor's detection status, allowing users to quickly understand the system's operation.
Adjustable Potentiometer: Equipped with a 10k adjustable potentiometer, users can optimize sensor performance by adjusting sensitivity and threshold to suit different environments and application needs.
Programming Platforms: Arduino, UIFlow, etc.

Includes

1 x Unit Reflective IR
1 x HY2.0-4P Grove Cable (20cm)
1 x Potentiometer Screwdriver

Applications

Object Detection
Distance Measurement
Automation Systems
Security Systems
Line Tracking

Specifications

Specification	Parameter
Analog Signal Output Range	0-4096 (ESP32@12bit)
Digital Signal Output	TTL
Operating Voltage	5V
Operating Temperature	0 ~ 40°C
Product Dimensions	32 x 24 x 8mm
Package Dimensions	136 x 92 x 20mm
Product Weight	5.2g
Gross Weight	10.4g

Learn

Detection Range

	Threshold Comparison Voltage: 1.65V (Factory Default, Potentiometer at Midpoint)	Threshold Comparison Voltage: 2.15V
Maximum Distance for Black Obstacles	0CM (Test Object: 100% Black Printed A4 Paper)	6.5CM (Test Object: 100% Black Printed A4 Paper)
Maximum Distance for White Obstacles	13CM (Test Object: White A4 Paper)	28CM (Test Object: White A4 Paper)
Maximum Distance for Colored Obstacles	14CM (Test Object: Magazine Cover with Blue, Green, and Yellow Colors)	25.5CM (Test Object: Magazine Cover with Blue, Green, and Yellow Colors)
Maximum Distance for Glossy Obstacles	31CM (Test Object: Glossy Metal Mesh)	43CM (Test Object: Glossy Metal Mesh)

Schematics

Unit Reflective IR Schematics PDF

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PinMap