Skip to main content
Home / Electronic Components / Maker DIY / 8-Channel Grayscale Line-Following Module Black/White/Yellow/Blue/Green Sensor Non-Infrared

Attributes

Brand -
Category Root / Electronic Components / Maker DIY
Origin -
Sensor Type Grayscale Reflective
Channel Count 8 Independent Channels
Detectable Colors Black, White, Yellow, Blue, Green
Operating Voltage 3.3V - 5V DC
Output Signal Digital TTL Level
PCB Length 65mm
PCB Width 25mm
Working Current < 50mA
Interface Type 2.54mm Pin Header
Net Weight 12g

5 reviews

A

Anonymous

Apr 11, 2026

Rating: 5/5

Exactly as described

Non-infrared feature is great for avoiding interference from other sensors. Direct digital output makes interfacing with MCU very simple.

A

Anonymous

Apr 09, 2026

Rating: 3/5

Decent module

Documentation was a bit sparse, had to test pins manually to map the channels. Sensor itself works fine once you figure out the pinout.

A

Anonymous

Feb 12, 2026

Rating: 5/5

Great value

Fast response time compared to standard IR sensors. Successfully used it for a black line on white background and vice versa. Highly recommend for DIY.

A

Anonymous

Jan 31, 2026

Rating: 4/5

Good sensitivity

Works well but needs precise height adjustment from the ground. Once calibrated, it tracks colored lines accurately. Good value for the price.

A

Anonymous

Jan 22, 2026

Rating: 5/5

Perfect for RoboContest

Used this for our university line follower robot. The 8 channels provide excellent resolution for smooth turns. No infrared interference was a huge plus in the arena.

5 FAQ

Q: What is the optimal height from the ground?

A: Typically 5mm to 10mm works best for accurate detection. You may need to adjust based on your specific chassis design.

Q: Does this require external pull-up resistors?

A: No, the module has onboard comparators and circuitry. You can connect the output pins directly to your microcontroller GPIO.

Q: Is there an onboard microcontroller?

A: No, this is a pure sensor module without an MCU. It is designed to be controlled by an external processor like Arduino or STM32.

Q: Can it distinguish between blue and green lines?

A: Yes, the grayscale sensor detects contrast differences. It is calibrated to recognize various colors including blue and green against contrasting backgrounds.

Q: Is this compatible with Arduino Uno?

A: Yes, it outputs digital TTL signals which are fully compatible with Arduino Uno and most 3.3V/5V microcontrollers.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Mushroom Stick Sponge Stamp Painting Set - Rotating Brush and Printing Tool for Kids' Art and Crafts

Mushroom Stick Sponge Stamp Painting Set - Rotating Brush and Printing Tool for Kids' Art and Crafts

$3.32

Yijiayi Plastic Surgery: Eyebrow Transplant, Aesthetic Artistic Brow Planting for Sparse or Missing Brows

Yijiayi Plastic Surgery: Eyebrow Transplant, Aesthetic Artistic Brow Planting for Sparse or Missing Brows

$6,780.00

Biliansheng Hair Transplant – No-Shave Technique for Eyebrows, Beard, Widow's Peak, and Sideburns; Aesthetic Design and Hair Restoration

Biliansheng Hair Transplant – No-Shave Technique for Eyebrows, Beard, Widow's Peak, and Sideburns; Aesthetic Design and Hair Restoration

$2.55

Oil Pastel Blending Stumps and Smudging Tools for Painting, Mixing, and Highlighting

Oil Pastel Blending Stumps and Smudging Tools for Painting, Mixing, and Highlighting

$4.76

Jingyangge Calligraphy Wool Felt Arm Rest Pad, Mini Felt Mat for Chinese Painting, Inkstone Protector, Creative and Exquisite Practice Mat

Jingyangge Calligraphy Wool Felt Arm Rest Pad, Mini Felt Mat for Chinese Painting, Inkstone Protector, Creative and Exquisite Practice Mat

$9.90

Concrete Mixing Plant Gantry Car Wash Platform, Shiji Runde Tunnel-Style Gantry Car Wash Machine

Concrete Mixing Plant Gantry Car Wash Platform, Shiji Runde Tunnel-Style Gantry Car Wash Machine

$20,000.00

Baohong Watercolor Paper Artist Grade 1/2/Full/Half Sheet, Student Grade 300g 100% Cotton Pulp, Rough/Medium/Fine Grain Roll

Baohong Watercolor Paper Artist Grade 1/2/Full/Half Sheet, Student Grade 300g 100% Cotton Pulp, Rough/Medium/Fine Grain Roll

$33.00

Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening

Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening

$1,033.00

Custom Travertine Stone Signage with Natural Marble 3D Lettering and Spherical Characters for Cafes, Clothing Stores, and Studios

Custom Travertine Stone Signage with Natural Marble 3D Lettering and Spherical Characters for Cafes, Clothing Stores, and Studios

$170.00

CANDLE.LAB | Realistic Cookie Series DIY Aromatherapy Plaster Candle Diffuser Handmade Silicone Mold

CANDLE.LAB | Realistic Cookie Series DIY Aromatherapy Plaster Candle Diffuser Handmade Silicone Mold

$12.00

Zhao Mengfu Calligraphy Copybook - Running Script 'Qingyun Zhi', Red-Traced Practice Paper for Beginners in Calligraphy

Zhao Mengfu Calligraphy Copybook - Running Script 'Qingyun Zhi', Red-Traced Practice Paper for Beginners in Calligraphy

$15.80

Aesthetic Street Scene Watercolor Line Art for Coloring, 16K Landscape Watercolor Coloring Book, Painting Book, Cotton Pulp Watercolor Album

Aesthetic Street Scene Watercolor Line Art for Coloring, 16K Landscape Watercolor Coloring Book, Painting Book, Cotton Pulp Watercolor Album

$15.80

Warehouse Nitrogen Sealing Generator - High-Purity Food-Grade PSA Skid-Mounted Container Equipment

Warehouse Nitrogen Sealing Generator - High-Purity Food-Grade PSA Skid-Mounted Container Equipment

$959.00

Ransheng UV Resin Gel, UV Crystal Glue for Gemstones, Ear Cuff Sealing, Dried Flower Molds, DIY Quick-Dry UV Epoxy

Ransheng UV Resin Gel, UV Crystal Glue for Gemstones, Ear Cuff Sealing, Dried Flower Molds, DIY Quick-Dry UV Epoxy

$44.00

Dairy Processing Production Line, Pasteurized Milk Equipment, Low-Temperature Sterilization and Fermentation Machine for Cow and Camel Milk

Dairy Processing Production Line, Pasteurized Milk Equipment, Low-Temperature Sterilization and Fermentation Machine for Cow and Camel Milk

$8,203.00

Blue Lint-Free Wiping Paper - Industrial Large Roll Oil-Absorbent Shop Towels

Blue Lint-Free Wiping Paper - Industrial Large Roll Oil-Absorbent Shop Towels

$62.00

Green-Red AB Glue 5-Minute Fast-Drying Acrylate AB Glue for Glass Ceramic Metal Structural Adhesive Quick Set

Green-Red AB Glue 5-Minute Fast-Drying Acrylate AB Glue for Glass Ceramic Metal Structural Adhesive Quick Set

$18.13

Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes

Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes

$40.30

Ru Kiln Celadon Ceramic Brush Washer Set - Large, Medium, and Small Ink Dishes for Chinese Calligraphy and Painting Supplies

Ru Kiln Celadon Ceramic Brush Washer Set - Large, Medium, and Small Ink Dishes for Chinese Calligraphy and Painting Supplies

$88.80

Multi-Layer Over-Toilet Storage Rack for Bathroom, Laundry Room, and Balcony - Floor Standing Organizer

Multi-Layer Over-Toilet Storage Rack for Bathroom, Laundry Room, and Balcony - Floor Standing Organizer

$44.96

Wrought Iron Solid Stainless Steel Letters – Minimalist Space Signage, Custom Metal Advertising Letters for Storefronts & Feature Walls

Wrought Iron Solid Stainless Steel Letters – Minimalist Space Signage, Custom Metal Advertising Letters for Storefronts & Feature Walls

$10.00

Shimoyama 304 Stainless Steel Telescopic Rod - Kitchen Sink Cutting Board Support Rack for Dish Drying and Cloth Hanging

Shimoyama 304 Stainless Steel Telescopic Rod - Kitchen Sink Cutting Board Support Rack for Dish Drying and Cloth Hanging

$74.80

Modified Wheel Lug Nuts Forged Steel High Strength for Lafesta Regal CT4 Civic Accord Crown Mazda3

Modified Wheel Lug Nuts Forged Steel High Strength for Lafesta Regal CT4 Civic Accord Crown Mazda3

$209.00

Milk Separator Machine - Electric Cream Skimmer and Butter Churn for Home and Commercial Use (Cow and Goat Milk)

Milk Separator Machine - Electric Cream Skimmer and Butter Churn for Home and Commercial Use (Cow and Goat Milk)

$946.00

Three-Phase Auto-Reclosing Leakage Circuit Breaker - Smart Phase Loss, Undervoltage, Overload Protection with 485 Communication for PV Grid Connection

Three-Phase Auto-Reclosing Leakage Circuit Breaker - Smart Phase Loss, Undervoltage, Overload Protection with 485 Communication for PV Grid Connection

$693.20

Multi-Function Vegetable Cutter Commercial Electric for Cafeterias Fully Automatic Chili Scallion Chopper Imitation Hand-Cut Leek Machine

Multi-Function Vegetable Cutter Commercial Electric for Cafeterias Fully Automatic Chili Scallion Chopper Imitation Hand-Cut Leek Machine

$1,600.00

Zhengtong ZT30 Fog Cannon - Micron-Level Humidification & Cooling Spray System for Steel Mills

Zhengtong ZT30 Fog Cannon - Micron-Level Humidification & Cooling Spray System for Steel Mills

$6,000.00

100Pcs Custom Clothing Hang Tags Personalized Plastic Securi

100Pcs Custom Clothing Hang Tags Personalized Plastic Securi

$125.94

Wall-Mounted Bathroom Storage Shelf, No-Drill Organizer for Sink, Shower, and Toilet Area

Wall-Mounted Bathroom Storage Shelf, No-Drill Organizer for Sink, Shower, and Toilet Area

$5.76

Thickened 5mm Wool Felt Mat for Calligraphy Practice - Premium Writing Pad for Students and Beginners, Part of Four Treasures of the Study Set

Thickened 5mm Wool Felt Mat for Calligraphy Practice - Premium Writing Pad for Students and Beginners, Part of Four Treasures of the Study Set

$2.80