Infrared Tracking & Obstacle Avoidance Sensor Module – Smart Car
Infrared Tracking & Obstacle Avoidance Sensor Module – Smart Car
Hello STEM Infrared Tracking & Obstacle Avoidance Module (HS-S04B)
Take your robotics and smart car projects to the next level with this versatile Infrared Tracking & Obstacle Avoidance Sensor Module from Hello STEM. Designed for makers, students, and hobbyists, this compact infrared reflection sensor delivers reliable line-following and proximity detection performance in a plug-and-play format — perfect for DIY smart cars, robotic platforms, and STEM education projects.
Key Features
- Dual Functionality: Supports both line/track following and obstacle detection, making it ideal for a wide range of autonomous robot builds.
- Infrared Reflection Technology: Uses IR emitter and receiver pairs to accurately detect surface contrasts (black/white lines) and nearby obstacles without physical contact.
- 5V Operating Voltage: Compatible with Arduino, Raspberry Pi, and most popular microcontroller development boards.
- Model HS-S04B: Compact and lightweight design for easy integration into smart car chassis and robotic assemblies.
- Digital Output: Clean HIGH/LOW signal output for straightforward interfacing with any digital I/O pin.
- Adjustable Sensitivity: On-board potentiometer lets you fine-tune detection range to suit your project environment.
- Stable & Reliable: High-quality components ensure consistent readings across a variety of surfaces and lighting conditions.
Specifications
| Brand | Hello STEM |
| Model | HS-S04B |
| Working Voltage | 5V DC |
| Output Type | Digital (HIGH/LOW) |
| Application | Smart car, line follower, obstacle avoidance robot |
| Country of Origin | Made in China |
What's in the Box
- 1 × Infrared Tracking & Obstacle Avoidance Sensor Module (HS-S04B)
Who Is This For?
Whether you're a student building your first autonomous robot, a teacher running a STEM workshop, or an experienced maker prototyping a new smart vehicle, this infrared sensor module gives you the detection capability you need at an accessible price point.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What microcontrollers is this infrared tracking module compatible with?
A: The HS-S04B infrared tracking and obstacle avoidance module operates at 5V and outputs a standard digital signal, making it compatible with Arduino (Uno, Mega, Nano), Raspberry Pi (via a logic level adapter), ESP32, ESP8266, and most other 5V microcontroller development boards commonly used in smart car and robotics projects.
Q: How do I adjust the detection sensitivity of this infrared sensor module?
A: The module features a built-in potentiometer (adjustable trimmer). Using a small flathead screwdriver, you can turn the potentiometer clockwise or counterclockwise to increase or decrease the detection range and sensitivity, allowing you to optimize performance for different surfaces and ambient light conditions.
Q: Can this module be used for both line tracking and obstacle avoidance on the same smart car?
A: Yes! The HS-S04B is designed to support both line/track following (detecting black lines on white surfaces or vice versa) and obstacle detection using infrared reflection. You can use multiple modules on a single smart car chassis — one set for line tracking and another angled forward for obstacle avoidance — making it a highly flexible choice for robotics builds.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.