Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Range | 2cm - 40cm (Adjustable) |
| Output Signal | Digital Switching Output (0 and 1) |
| Comparator Chip | LM393 |
| PCB Dimensions | 32mm x 14mm |
| Mounting Hole Diameter | 3mm |
| Indicator LED | Power and Detection Status |
| Potentiometer | Sensitivity Adjustment Included |
| Application | Line Tracking, Obstacle Avoidance, Counting |
| Package Contents | 1x Sensor Module, 1x Pin Header |
Anonymous
Mar 30, 2026
Rating: 3/5
Works well in controlled light
The sensor is functional, but I noticed it gets a bit erratic under direct sunlight or very bright fluorescent lights. For indoor use or shaded outdoor projects, it performs perfectly fine.
Anonymous
Mar 24, 2026
Rating: 5/5
Compact and reliable
The form factor is small enough to fit on tight chassis designs. The output is clean digital logic levels which interface easily with ESP32 and Raspberry Pi GPIO pins without extra components.
Anonymous
Mar 17, 2026
Rating: 5/5
Essential for line followers
Bought a pack of five for a university project. All units worked out of the box. The contrast between black and white surface recognition is sharp when adjusted correctly. Highly recommended for beginners.
Anonymous
Mar 12, 2026
Rating: 4/5
Good value but needs calibration
Great little module for the price. It took a few minutes to calibrate the sensitivity using the blue potentiometer, especially under bright room lighting. Once tuned, it reliably detects black lines and obstacles.
Anonymous
Mar 11, 2026
Rating: 5/5
Perfect for my Arduino robot car
This sensor works exactly as described. The adjustable potentiometer makes it very easy to set the detection distance precisely. I used two of these for obstacle avoidance on my DIY robot car, and the response time is excellent.
Anonymous
Mar 08, 2026
Rating: 4/5
Great for teaching kids electronics
Used this to teach my son about sensors and automation. It's robust enough to handle some clumsy wiring mistakes. The LED indicators are helpful for debugging logic without a multimeter.
Q: How do I adjust the detection distance?
A: There is a blue trimmer potentiometer on the board. Use a small screwdriver to rotate it clockwise to increase sensitivity (longer range) or counter-clockwise to decrease it. Test with your target object while adjusting.
Q: Can this sensor detect clear glass or transparent objects?
A: This is a reflective infrared sensor, so it relies on light bouncing back from a surface. Transparent objects like clear glass often allow IR light to pass through rather than reflecting it, making detection unreliable. It works best on opaque surfaces.
Q: What is the maximum current draw of this module?
A: The module typically draws around 10mA to 20mA when the IR LED is active and the output transistor is switching. Please ensure your microcontroller pin or power supply can handle this load.
Q: Is the output analog or digital?
A: The output is digital (HIGH/LOW or 1/0). However, since it uses an LM393 comparator, you can technically tap into the analog signal before the comparator if you modify the board, but the standard pins provide a digital switch signal.
Q: Can I use this directly with a 5V Arduino Uno?
A: Yes, absolutely. The module operates on 3.3V to 5V, making it fully compatible with the 5V logic of the Arduino Uno. Connect VCC to 5V, GND to GND, and OUT to any digital input pin.
Nangong Wenfang Three-Character Classic Small Regular Script Copybook – Transparent Cards for Calligraphy Practice Beginners
$69.00
Over-Washing Machine Shelf, Multi-Function Flip-Top Storage Cabinet for Toilet, Bathroom Floor-Standing Unit with No Drilling Required
$32.88
UGREEN Cable Organizer, Magnetic Desktop Data Wire Fixer, Phone Charging Clip and Cord Collector
$15.90
Compact Manual Water Pump Dispenser for Home Desktop Use – Mini Hand-Press Faucet for Large Water Buckets
$23.10
Traditional Sheepskin Rattle Baby Chewable Old-Style Handmade Newborn Wave Drum Toy for Children 0-6 Months
$17.80
Amazon Best Seller Clearance - Outdoor Waterproof Dry Bag for Swimming, Rafting, Snorkeling, and Diving
$135.00
Huirui 420AB Fast-Curing Silicone Adhesive - High-Strength Instant Glue for Bonding Silicone Metal Plastic and Velcro
$36.00
IGBT Module FP15R12KE3/FP25R12KE3/FS50R12KE3/FS75R12KE3
$250.00
3F UL Gear Ventilated Waterproof Dry Bag – Compressible Storage for Sleeping Bags, Clothes, and Swim Gear
$40.80
Martini 100% Cotton Watercolor Paper 200g/300g Thickened Art Sketch Paper 4K Drawing Paper
$12.00
Flameless Aromatherapy DIY Kit - Natural Crystal Diffuser Stones for Home Decor and Demagnetizing
$4.68
![[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment](https://www.gosteppe.com/cache/small/product/268910/legacy-main-034f7c58b79ebda262b6a7f8.png)
[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment
$7.90
3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide
$7.20
Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board
$85.90
Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15
$65.00
BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J
$14.08
Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day
$14.80
Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator
$37.54
Face Towel Storage Box Wall-Mounted Bathroom Tissue Holder
$2.98
Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls
$13.00
Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers
$2.09
Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students
$6.06
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal
$39.00
Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book
$10.00
Custom Name Stamp, Personalized Seal, Photo-Sensitive Signature Stamp
$7.04
Variable Frequency Drive Accessory RMIO Flat Cable for ACS800
$120.00
Qimeng Island WAKUKU 'Start Cheating Now' Series Blind Box, Celebrity Style Plush Toy
$69.00
Orthodontic Invisible Aligner Case Retainer Storage Box Teeth Corrector Denture Compact Portable Cleaning Box
$12.30
Sentury 990 Silent Tire - Sizes 185/195/205/215/225/50/55/60/65 R16/R17/R18/R19
$342.00
Adult Outdoor Rafting Gear – Large PVC Mesh Waterproof Dry Bag for Swimming and River Trekking
$7.26
![[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)
