Infrared Distance Sensor IR Module – Adjustable Obstacle Detection

The Infrared Distance Sensor IR Module is a compact and reliable obstacle detection sensor perfect for robotics, line-following cars, and automation projects. It uses an infrared emitter and receiver pair to detect nearby objects by measuring reflected IR light.

This module includes an onboard comparator and adjustable potentiometer so you can fine-tune detection sensitivity depending on your environment and project needs.

Why Choose This IR Distance Sensor?

• ✔ Adjustable detection range via onboard potentiometer
• ✔ Digital output (HIGH / LOW signal)
• ✔ Fast response time for real-time obstacle detection
• ✔ Compatible with Arduino, ESP8266, ESP32, Raspberry Pi
• ✔ Ideal for robotics and automation builds

How It Works

The sensor emits infrared light and measures the reflection from nearby objects. When an object enters the detection range, the module outputs a digital signal that can be read by a microcontroller.

The onboard comparator (typically LM393) ensures stable switching, reducing noise and false triggers.

Common Applications

• 🚗 Obstacle avoidance robot cars
• 📦 Object detection systems
• 🤖 Smart robotics projects
• 🚪 Automatic door triggers
• 📊 Industrial proximity detection (short range)

Technical Specifications

Pinout

• VCC – 3.3V to 5V
• GND – Ground
• OUT – Digital output signal

Compatible Boards

• Arduino Uno
• ESP32
• Raspberry Pi Pico

You can also explore the official Arduino documentation here: Arduino Documentation

What’s in the Box?

• 1x Infrared Distance Sensor IR Module

Frequently Asked Questions (FAQ)

Q1: What is the maximum detection distance?

The detection range is typically between 2cm and 30cm, depending on surface reflectivity and ambient lighting conditions.

Q2: Does this sensor measure exact distance?

No. This is a digital obstacle detection sensor, not an analog distance measurement sensor. It only outputs HIGH or LOW depending on object presence.

Q3: Can I use this with ESP8266 or ESP32?

Yes. The module supports 3.3V and 5V logic levels, making it compatible with ESP8266, ESP32, Arduino, and Raspberry Pi.

Q4: Why does it trigger even without an object?

Try adjusting the onboard potentiometer to reduce sensitivity. Bright sunlight or reflective surfaces can affect IR sensors.

Q5: Is this good for line tracking?

This module is primarily for obstacle detection. For better line tracking performance, consider dedicated line tracking sensors.