MH-B Infrared Obstacle Avoidance Sensor Module – Adjustable IR Proximity Sensor for Arduino

The MH-B Infrared Obstacle Avoidance Sensor Module uses an infrared transmitter and receiver pair to detect nearby reflective objects without physical contact.

When an object reflects the emitted infrared light back to the receiver, the onboard comparator circuit changes the OUT digital signal, allowing easy connection to a microcontroller. This type of module commonly operates from 3.3V to 5V DC.

Key Features

• Model marking: MH-B
• Sensor type: Infrared reflective obstacle sensor
• Operating voltage: 3.3V–5V DC
• Digital output
• Adjustable detection threshold via potentiometer
• Infrared transmitter + receiver
• Onboard status indicators
• 3-pin interface
• Compact PCB design
• Suitable for microcontroller projects

Pinout

• VCC – Power input
• GND – Ground
• OUT – Digital signal output

The module outputs a digital signal when reflected infrared light reaches the configured detection threshold.

Suitable Applications

• Arduino robot cars
• Obstacle avoidance robots
• Object detection
• Line / surface detection experiments
• Automatic counters
• Smart car projects
• DIY alarms
• ESP32 and microcontroller projects

Handling & Safety

Always power the motion sensor within its rated voltage range and double-check pin connections before powering up. Avoid touching the circuit while it is live, and keep it away from moisture and static discharge during handling. These steps protect the part from damage.

Why Choose This Motion Sensor

First, it is a widely used part in the maker community, so documentation, libraries and example wiring diagrams are easy to find. Second, it works with common microcontroller platforms, so you can get it running quickly. Third, our team checks basic function before it ships. So, you avoid guesswork when you order. As a result, this is a dependable choice for learning, prototyping or finishing a project.

Wiring Tips

Before final assembly, test the part on a breadboard if you are unsure of the wiring. Therefore, you avoid damaging your main circuit during first power-up. Also, keep connections short and secure to reduce noise and reading errors. In addition, label each wire during assembly so future troubleshooting is easier. As a result, your project stays reliable and easy to maintain.

Good to Know

A well-matched motion sensor saves time on debugging later. Therefore, double-check the pin layout and voltage requirements against your other components before wiring everything together. Also, keep the original packaging until you have tested the part, since this makes any exchange easier if something is not right. In addition, bookmark the manufacturer’s documentation for quick reference during your build. As a result, your project moves forward with fewer surprises.

MH-B Infrared Obstacle Avoidance Sensor Module – Adjustable IR Proximity Sensor for Arduino

MH-B Infrared Obstacle Avoidance Sensor Module – Adjustable IR Proximity Sensor for Arduino حساس حركة مخصص لـ الكشف عن الحركة أو العوائق بالأشعة تحت الحمراء.

الاستخدامات

• إضاءة تعمل عند الحركة
• مشاريع الأمان والإنذار
• روبوتات تجنب العوائق
• مشاريع الأبواب والبوابات الأوتوماتيكية

ملاحظات الأمان

شغّل حساس حركة دايمًا في حدود الجهد المقنن ليه، وراجع توصيلات الأطراف قبل التشغيل. تجنب لمس الدائرة وهي شغالة، وخليها بعيدة عن الرطوبة والشحنات الساكنة أثناء التعامل معاها. هذه الخطوات بتحمي القطعة من التلف.

ليه تختار حساس حركة ده

أولاً، قطعة مستخدمة بشكل واسع في مجتمع الصناع، فتلاقي شروحات ومكتبات وأمثلة توصيل بسهولة. ثانيًا، بيشتغل مع منصات المتحكمات الشائعة، فتقدر تشغّله بسرعة. ثالثًا، بنتأكد من الوظيفة الأساسية قبل الشحن. فهو اختيار موثوق للتعلم أو التجربة أو إنهاء مشروعك.

تقدر تستعرض باقي الحساسات والموديولات عندنا لمشروعك القادم.