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IR Obstacle Avoidance Sensor Module With LM393

SKU: IHA8NLSMB6
★★★★ ★ ★
4.1 (34 reviews)
The IR Obstacle Avoidance Sensor Module with LM393 is a compact infrared proximity sensor designed to detect nearby objects without physical contact. It consists of an infrared (IR) transmitting LED, an IR receiving photodiode, and an onboard LM393 voltage comparator that converts the reflected infrared signal into a stable digital output. The sensor detects obstacles by transmitting infrared light and...
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The IR Obstacle Avoidance Sensor Module with LM393 is a compact infrared proximity sensor designed to detect nearby objects without physical contact. It consists of an infrared (IR) transmitting LED, an IR receiving photodiode, and an onboard LM393 voltage comparator that converts the reflected infrared signal into a stable digital output. The sensor detects obstacles by transmitting infrared light and measuring the reflected signal from nearby objects.

Operating from 3.3V to 5V DC, the module features an onboard potentiometer for adjusting the detection sensitivity and range. It provides a digital TTL output, allowing easy interfacing with Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other microcontrollers. With its fast response time, low power consumption, and simple three-pin interface, the module is widely used in obstacle avoidance robots, line-following robots, industrial automation, smart vehicles, and educational electronics projects.

Key Features

  • Based on the LM393 voltage comparator
  • Infrared reflective obstacle detection
  • Adjustable detection distance using onboard potentiometer
  • Digital TTL output
  • Operating voltage of 3.3V to 5V DC
  • Fast response time
  • High sensitivity and stable performance
  • Built-in power and detection indicator LEDs
  • Strong immunity to ambient light interference
  • Compact PCB with mounting holes
  • Low power consumption
  • Easy 3-pin interface
  • Compatible with Arduino, ESP32, STM32, Raspberry Pi, AVR, and PIC
  • Ideal for obstacle avoidance and robotic applications

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Infrared Obstacle Avoidance Sensor Module
Detection Principle: Infrared Reflection
Comparator IC: LM393
Operating Voltage: 3.3V to 5V DC
Operating Current: Approximately 20mA
Output Type: Digital (TTL)
Output Logic: HIGH/LOW Digital Signal (Module Dependent)
Detection Distance: Adjustable from approximately 2cm to 30cm
Detection Angle: Approximately 35°
Infrared Wavelength: 760nm to 1100nm
Sensitivity Adjustment: Onboard Potentiometer
Indicator LEDs: Power LED and Detection LED
Response Time: Fast Response
Operating Temperature: -10°C to +50°C
Mounting Hole Diameter: 3mm
Module Dimensions: Approximately 32mm × 14mm × 8mm
Mounting Type: PCB Module with Mounting Holes
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi, PIC, AVR, 8051 and other digital-input microcontrollers

Additional Resources

IR Obstacle Avoidance Sensor.PDF

FAQ

1. What is the IR Obstacle Avoidance Sensor Module with LM393 used for?

The module is used to detect nearby objects without physical contact. It is commonly used in obstacle avoidance robots, line-following robots, automation systems, smart vehicles, and embedded electronics projects.

2. Can the detection distance be adjusted?

Yes. The module includes an onboard potentiometer that allows the detection range to be adjusted, typically between 2cm and 30cm, depending on the object's size, color, and surface reflectivity.

3. Is the IR Obstacle Sensor compatible with Arduino and ESP32?

Yes. The sensor operates from 3.3V to 5V and provides a digital output, making it compatible with Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other microcontrollers.

4. How does the IR Obstacle Avoidance Sensor work?

The module transmits infrared light using an IR LED. When an object reflects the infrared light back to the receiver, the onboard LM393 comparator processes the signal and changes the digital output to indicate the presence of an obstacle.

5. Can the sensor detect all types of objects?

The sensor can detect most objects, but detection performance depends on the object's color, surface finish, and reflectivity. Light-colored and reflective surfaces are generally detected more easily than dark or highly absorbent materials.