Infrared Sensor Module – Line Tracking & Obstacle Avoidance Arduino
Infrared Sensor Module – Line Tracking & Obstacle Avoidance Arduino
Hello STEM Infrared Sensor Module (HS-S01A) – Line Tracking & Obstacle Avoidance for Arduino
Take your Arduino projects to the next level with the Hello STEM HS-S01A Infrared Sensor Module. Designed for makers, students, and electronics enthusiasts, this compact digital photoelectric sensor delivers reliable line-tracing and obstacle-detection performance in a plug-and-play form factor. Whether you're building a line-following robot, a proximity-sensing device, or experimenting with automation, this module integrates seamlessly with Arduino development boards and most compatible microcontroller kits.
Key Features
- Dual Functionality: Supports both line/trace tracking and obstacle avoidance in a single compact module.
- Digital Output: Clean HIGH/LOW digital signal output for easy interfacing with Arduino and compatible boards — no analog conversion needed.
- Photoelectric (Infrared) Sensing: Uses IR emitter and receiver technology for accurate, consistent detection across varying lighting conditions.
- Compact Form Factor: At just 36 × 18 × 14 mm, it fits neatly into tight builds, robots, and enclosures without adding bulk.
- Polymer Construction: Lightweight and durable polymer body built to withstand repeated prototyping and classroom use.
- Wide Compatibility: Works with Arduino UNO, Mega, Nano, and most standard 5V microcontroller development platforms.
- Adjustable Sensitivity: Onboard potentiometer allows you to fine-tune detection range and sensitivity for your specific application.
- Model: HS-S01A | Output Type: Digital Sensor | Working Principle: Photoelectric (Infrared)
Specifications
| Model | HS-S01A |
| Brand | Hello STEM |
| Sensor Type | Infrared (Photoelectric) |
| Output Type | Digital |
| Material | Polymer |
| Dimensions | 36 × 18 × 14 mm |
| Country of Origin | Made in China |
What's in the Box?
- 1 × Hello STEM HS-S01A Infrared Sensor Module
Who Is This For?
Perfect for STEM students, hobbyists, robotics builders, and educators looking for an affordable, reliable infrared sensor to power Arduino-based automation and robotics projects. Whether it's your first robot build or your fiftieth, the HS-S01A makes smart sensing simple.
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Frequently Asked Questions
Q: Is this infrared sensor module compatible with Arduino UNO and Nano boards?
A: Yes! The Hello STEM HS-S01A infrared sensor module is fully compatible with Arduino UNO, Nano, Mega, and most other 5V microcontroller development boards. Simply connect the VCC, GND, and signal pins, and you're ready to code.
Q: Can this module handle both line tracking and obstacle avoidance?
A: Absolutely. The HS-S01A infrared sensor module is designed for dual use — it can detect surface lines (trace tracking) for line-following robots and detect nearby objects (obstacle avoidance) for autonomous navigation projects. The onboard sensitivity potentiometer lets you tune it for either use case.
Q: What is the detection range of the HS-S01A infrared sensor?
A: The detection range can be adjusted via the onboard potentiometer, typically spanning a few centimeters. For line tracking, it works best close to a reflective surface; for obstacle avoidance, the range can be tuned to suit your specific build requirements.
Q: What output type does this sensor use?
A: The HS-S01A uses a digital output, producing a clean HIGH or LOW signal. This makes it straightforward to read with any digital input pin on your Arduino or compatible development board — no analog-to-digital conversion required.
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.