Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Range | 2cm - 30cm (Adjustable) |
| Output Signal | Digital Switching Output (0 and 1) |
| Indicator LED | Power and Detection Status LEDs |
| Comparator Chip | LM393 Wide Voltage Comparator |
| Sensitivity Adjustment | Potentiometer for Fine Tuning |
| Mounting Compatibility | Compatible with LEGO Technic Pins |
| PCB Dimensions | 32mm x 14mm x 8mm |
| Application Type | Line Tracking and Obstacle Avoidance |
| Package Contents | 2x Infrared Sensor Modules |
Anonymous
Mar 22, 2026
Rating: 5/5
Great addition to our smart car kit
My son and I used these to upgrade his existing toy car into an autonomous vehicle. The response time is fast enough to stop before hitting walls. The LEDs provide good visual feedback during debugging.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for my Arduino car project
These sensors work flawlessly for line tracking. The sensitivity adjustment is very responsive, allowing me to calibrate it perfectly for black tape on a white floor. Great value for a pair.
Anonymous
Mar 08, 2026
Rating: 5/5
LEGO compatible as advertised
I was skeptical about the LEGO compatibility claim, but the mounting holes align perfectly with standard Technic pins. It made building a custom sensor array much faster than designing 3D printed brackets.
Anonymous
Mar 08, 2026
Rating: 4/5
Good for classroom kits
Bought these for our high school robotics club. They are durable and easy to wire up. The only minor issue is that direct sunlight can interfere with the reading, but indoors they are excellent.
Anonymous
Mar 08, 2026
Rating: 3/5
Works well but range is limited
The sensor is reliable for close-range obstacle avoidance, but don't expect it to detect objects further than 25cm reliably. For the price, it's acceptable, just manage your expectations on range.
Anonymous
Mar 05, 2026
Rating: 5/5
Easy to integrate
Very straightforward to connect to an ESP32. The digital output makes coding simple; no need for complex analog reading logic unless you want to measure distance specifically. Highly recommended for beginners.
Q: How do I adjust the detection distance?
A: There is a blue potentiometer on the back of the PCB. Use a small screwdriver to turn it clockwise to increase sensitivity (range) or counter-clockwise to decrease it while testing with your target object.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, since the module operates at 3.3V to 5V and provides a digital signal, it is fully compatible with Raspberry Pi GPIO pins. Just ensure you connect the VCC to the 3.3V or 5V pin accordingly.
Q: Can these sensors detect clear glass or transparent obstacles?
A: Infrared reflective sensors generally struggle with transparent objects like glass because the IR light passes through rather than reflecting back. They are best suited for opaque obstacles.
Q: What is the current consumption of each module?
A: Each module typically consumes around 10mA to 20mA when active, depending on the brightness of the IR LED and the state of the indicator LEDs.
Q: Are the pin headers pre-soldered?
A: No, the modules usually come with unsoldered pin headers to allow for flexible wiring options. You will need to solder them yourself or use jumper wires with friction fit if the holes are tight.
Paper Blending Stump A1zdq001 - Large Art Sketch Highlighting Tool for Students
$4.15
Continental Run-Flat Tires 225 235 245 255 265/45 50 55R17R18R19R20R21R22
$350.00
3D Printing Pen for Children - 3D Stereoscopic Drawing Toy for Boys and Girls (Ages 6+)
$35.70
MOOCAT Loose-Leaf Refill – 300G Wood Pulp Fine-Texture Blank Paper for OC Binders A9/B5/M5/M6 Hand Drawing
$12.90
Lanzhai Calligraphy Wool Felt Mat – Mini Arm Rest and Inkstone Pad with Creative Chinese Style Design for Painting and Writing
$7.48
Qing Dynasty Calligrapher Lin Zexu Guangeti Small Regular Script: Buddha Speaks of the Infinite Life Sutra, Brush Tracing Practice Long Scroll Copybook
$8.80
Lightweight Ceramsite Bottom Padding, Professional Backfill for Sunken Bathroom Engineering and Construction, Large Granules
$30.10
![[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament](https://www.gosteppe.com/cache/small/product/269008/legacy-main-75745db0463ce5521fe5703d.webp)
[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament
$49.00
Sanitary Juice Beverage Dairy Mixing Tank Food Pharmaceutical Electric Heating Emulsification Reaction Dissolution Tank
$4,122.00
Zhi Paper Calligraphy Copybook: Shen Du's Red Cliff Ode, Jingzhai Zhen, and Bu Zi Qi Shuo - Small Regular Script Cards for Tracing Practice
$17.00
Maike Outdoor Waterproof Dry Bag - Crossbody Travel Backpack for Rafting Diving and Beach Activities
$19.90
Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, and Pu'erh Loose Leaf Tea in Porcelain Jars
$140.41
Transparent Retainer Storage Case – Portable Soaking and Cleaning Box for Orthodontic Appliances and Dentures
$8.42
Original Wang Xizhi Huangting Small Regular Script Calligraphy Copybook for Soft/Hard Tip Pens Tear-Off Card Precise Tracing Kaishu Huan'e Tie
$35.70
Foldable Kitchen Sink Dish Drying Rack - Silicone Roll-Up Mat and Countertop Organizer
$25.40
Rapid Folding Shopping Cart, Small Trolley for Stairs, Lightweight Portable Home Handcart, Supermarket Pushcart and Vegetable Basket
$178.39
Over-Toilet Storage Rack - No-Drill Toilet Paper Holder with Multi-Compartment Shelves for Wet Wipes and Aromatherapy
$19.71
Stainless Steel Planter Pot - Outdoor Vegetable and Flower Growing Box for Balcony, Rooftop, Courtyard, Auto-Drainage, Customizable
$42.50
Stainless Steel Over-Toilet Storage Rack, Multi-Function Floor-Mounted or Wall-Mounted Multi-Tier Organizer for Bathroom, Toilet, and Laundry
$50.00
![[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring](https://www.gosteppe.com/cache/small/product/268996/legacy-main-32173fe50b846ac0e87ae26e.webp)
[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring
$22.90
Here and Now Pocket Calligraphy Copybook: Wen Zhengming Small Regular Script for Adult Beginners
$18.00
Southern Red Agate Loose Beads for DIY Crystal Jewelry Making, Round Bead Accessories and Materials
$1.10
3-Tier, 4-Tier, 5-Tier Double-Layer Drainage Rack, Water Bucket Stand, Floor-Standing Thickened Rack
$276.32
Multi-Layer Over-Toilet Storage Rack for Bathroom, Drill-Free Floor Stand for Washing Machine and Balcony Organization
$46.96
Thickened Industrial Scouring Pad Emery Stainless Steel Abrasive Cloth Pot Scrubber Rust Removal and Polishing Wheel
$7.28
Wall-Mounted Bathroom Toilet Paper Holder and Tissue Dispenser Rack
$49.00
Arches French Watercolor Paper 300g/640g/850g, Cold/Hot Press, 100% Cotton, Deckled Edge, 2K/4K/8K
$29.60
Wen Xin Tang Yan Zhenqing Duobao Pagoda Stele Calligraphy Copybook, Tang Regular Script, Adult Beginner Calligraphy Practice Cards
$49.30
![[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask](https://www.gosteppe.com/cache/small/product/268987/legacy-main-5f71c8070119587e6427efe9.webp)
[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask
$298.00
Teruisi Electric Fruit and Vegetable Slicer, Multifunctional Chopper for Cafeterias and Hotels, Cutter for Green Onions, Chili Peppers, Radishes, and Ginger
$3,798.00
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
