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SparkFun QRE1113 Line Sensor Breakout (Analog) - Miniature IR Reflectance Module

₹519.00 (Inclusive of all taxes)
Out of Stock

The SparkFun QRE1113 Analog Line Sensor Breakout is a compact IR reflectance sensor module designed for non-contact surface detection, ideal for line-following robots and proximity sensing in 3.3V or 5V microcontroller systems like Arduino and Raspberry Pi.

Features

  • Analog output voltage inversely proportional to reflected IR intensity
  • Integrates QRE1113 sensor with IR LED and phototransistor pair
  • On-board 100Ω current-limiting and 10kΩ pull-up resistors
  • Compatible with 3.3V and 5V logic systems
  • Miniature footprint (15mm x 10mm) for space-constrained designs

Out of stock

Description

The SparkFun QRE1113 Analog Breakout utilizes an infrared reflectance sensing principle. The onboard IR LED emits light, which is reflected by a surface and detected by the co-located phototransistor. The module’s analog output pin provides a voltage that decreases as the amount of reflected IR light increases, enabling precise grayscale or line detection.

Designed for easy integration, the breakout includes all necessary current-limiting and pull-up resistors. The output can be read directly by any microcontroller ADC pin, making it suitable for real-time feedback in autonomous robotics, edge detection, and material discrimination applications.

Key Features

  • QRE1113-based IR reflectance sensor with analog voltage output
  • On-board 100Ω series resistor for IR LED protection
  • Integrated 10kΩ pull-up resistor on the output signal
  • Wide operating voltage compatibility (3.3V to 5V DC)
  • Miniature, breakout-board design for easy prototyping
  • Non-contact, surface-reflectance-based sensing principle
  • High-value build optimized for educational and robotics projects

Applications

  • Line-following and edge detection for autonomous mobile robots
  • Proximity sensing for object detection and avoidance systems
  • Surface material discrimination and grayscale detection
  • Educational robotics and microcontroller sensing projects

Technical Specifications

Manufacturer Part NumberROB-09453
Sensor ModelQRE1113
Output TypeAnalog Voltage
Operating Voltage5V DC (3.3V compatible)
Supply Current25 mA (typical)
Sensing PrincipleIR Reflectance
Detection DistanceUp to 3 mm (typical for line sensing)
Board Dimensions (L x W)15 mm x 10 mm
Board Weight2.6 g

Frequently Asked Questions

What is the output signal of this QRE1113 breakout module?

This module provides an analog voltage output. The output pin is pulled high (near VCC) by a 10kΩ resistor when no IR light is detected. The voltage decreases proportionally as the phototransistor receives more reflected IR light from the onboard LED.

Can I use this sensor with a 3.3V microcontroller like an ESP32?

Yes, the module is fully compatible with 3.3V systems. You can power it with 3.3V, and the analog output signal will be within the 0-3.3V range, making it safe to connect directly to a 3.3V logic ADC input pin.

How do I wire and read data from this analog line sensor?

Connect VCC to 3.3V or 5V, GND to ground, and the OUT pin to an analog input (ADC) pin on your microcontroller. Read the analog voltage value; a lower reading indicates higher reflected IR (e.g., a light line on a dark surface). Calibration is required for specific surface materials.

Package Includes

  • 1 x SparkFun Line Sensor Breakout - QRE1113 (Analog)

Additional Information

Weight 0.0026 kg
Dimensions 1.5 × 1 cm