Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | GY-33 / GY-31 |
| Sensor Type | TCS3200D / TCS34725 |
| Operating Voltage | 3.3V - 5V DC |
| Interface | I2C / TTL Pulse Output |
| Detection Range | 0mm - 10mm (Optimal) |
| LED Indicator | White LED with Adjustable Brightness |
| PCB Dimensions | 22mm x 18mm x 6mm |
| Mounting Holes | 4 x 3mm Diameter |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
| Package Weight | 5 grams |
Anonymous
Mar 30, 2026
Rating: 5/5
Fast shipping and great quality
Arrived quickly and packaging was secure. The pins are clearly labeled, and the included documentation link was helpful for getting started immediately.
Anonymous
Mar 22, 2026
Rating: 4/5
Compact and efficient
Small form factor makes it easy to integrate into tight spaces. The only downside is that ambient light can interfere if not shielded properly.
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for Arduino projects
This sensor works flawlessly with my Arduino Uno. The color recognition is surprisingly accurate for the price point. Setup was easy using existing libraries.
Anonymous
Mar 18, 2026
Rating: 4/5
Good value but needs calibration
The module is solid and well-soldered. You do need to spend some time calibrating it for your specific lighting conditions, but once done, it performs well.
Anonymous
Mar 17, 2026
Rating: 5/5
Great for university projects
Used this for a final year sorting robot project. It reliably distinguishes between red, blue, green, and white objects. Highly recommend for students.
Anonymous
Mar 16, 2026
Rating: 5/5
Excellent I2C implementation
The TCS34725 version with I2C is much easier to wire than the pulse output versions. Library support is abundant, making coding a breeze.
Q: What is the maximum distance for accurate color detection?
A: For the most accurate readings, the object should be within 3mm to 10mm of the sensor. Beyond 10mm, accuracy may decrease depending on ambient lighting.
Q: Does it distinguish between black and dark blue?
A: While it can detect low light values for black, distinguishing very dark colors depends heavily on calibration and lighting. We recommend testing with your specific materials.
Q: Is the onboard LED brightness adjustable?
A: Yes, the brightness of the integrated white LED can be adjusted via software commands to prevent washing out colors on reflective surfaces.
Q: Does this module come with a library for Arduino?
A: Yes, this sensor is compatible with popular open-source Arduino libraries such as Adafruit_TCS34725. You can install them directly via the Library Manager.
Q: Can this work with 3.3V logic levels?
A: Absolutely. The module operates on a voltage range of 3.3V to 5V, making it fully compatible with both 3.3V and 5V microcontrollers like ESP32 and Arduino.
F01RB0WA23 Transmission Valve for Roewe DQCT280 Remanufactured
$324.00
Full Payment Pre-order Guzi Bear DMMD Dramatical Murder Badge Polaroid Set Merchandise
$29.00
Peach Wood Sheepskin Rattle and Clapper Brass Traditional Handmade Baby Teething Hand Drum Newborn Gift Box
$29.90
Pirelli Run-Flat Tires 235/245/255/265/275/285 40 45 50 55R19R20R21
$350.00
Protective Case Lid for Pelican Cases - Laptop Insert for Models 1510, 1560, and 1535
$254.00
Universal 5800 Super Glue for Plastic, Metal, Glass, and Wood, 10-Second Fast Curing
$2.01
White Noise Wood Chip Core Grid Scented Candle Wooden Core S-Type Brand Name Candle Container Soy Candle Core Wood
$1.50
Zunjue 100% Cotton Paper Block 300g Watercolor Paper, Fine/Medium Grain, Thickened 80 Sheets, Neutral Acid-Free Journal Paper for Art Students, Beginners, Watercolor, Colored Pencil, Pen, Light Wash, Marker
$27.20
Outdoor Waterproof Dry Bag for Rafting and Creek Walking - Large Capacity Backpack for Swimming, Hiking, Diving, and Flood Rescue
$132.00
Lukang 995 Door and Window Fast-Drying Glass Sealant - Transparent Weather-Resistant Neutral Silicone Structural Adhesive
$222.90
Large Flip-Type Water Draining and Air Drying Machine, Fully Automatic Air Knife Blower for Vegetables, Commercial Continuous Drying Equipment
$15,282.00
Large Capacity Household Quilt Storage Bag - Waterproof and Moisture-Proof Duvet Organizer for Moving, Packing, and Luggage Sorting
$5.88
Scented Candle Aluminum Alloy Turntable 360-Degree Rotating Double-Sided Silent Non-Slip Small Turntable for Cake Decorating and DIY
$30.40
Ceramic Five Oxen Painting Brush Washer – Antique-Style Ink Well for Calligraphy & Traditional Painting
$16.90
Liupintang 3-in-1 Brush Washing Bucket with Palette - Portable Handheld Multi-Function Art Tool for Chinese Painting, Watercolor, and Gouache, Foldable Small Pail
$17.80
ZGT Type Damped Spring Vibration Isolator for Large Equipment such as Chillers and Diesel Generator Sets
$135.00
Shanlian Lake Brush Wool Felt Mat for Calligraphy and Painting, Washable Desk Pad for Beginners
$22.70
New Silicone Data Cable Protector, Anti-Break and Anti-Bite Cord Organizer for Charging Lines and Headphones, Universal Phone Accessory
$5.58
Cafeteria Bulb Vegetable Cutter - Complete Kelp Shredding Production Line, All-in-One Slicing, Dicing, and Shredding Machine
$10,000.00
Electric Water Dispenser Pump for Bottled Mineral Water - Automatic Press-Type Purified Water Pump Manufacturer
$113.00
Heavy-Duty Industrial Wiping Cloths for Auto Painting, Baking, Film Application, Detailing, and Degreasing – Absorbent, Oil-Removing, Lint-Free Paper and Cloth
$120.00
6-Cavity Oval Beehive Silicone Mold for DIY Handmade Soap - Heat-Resistant Non-Stick Large Mold for Milk and Essential Oil Soaps
$4.93
Data Cable Organizer Bag with Zipper for Charging Cables and Adapters - Dustproof Desktop Storage
$5.90
Auby Baby Rattle Toy for 6+ Months, Chewable Wave Drum and Shaker for Newborns and Toddlers
$24.90
Preferred 45L Industrial Pulping Machine Spinach Fresh Pulp Galangal Carrot Tomato Sauce Making Fruit and Vegetable Industry Blender
$7,632.00
KAD Professional Thickened Sketch Blending Stump - Dual-Head Smudging Pen for Art Students
$9.90
Beijing Imported Dental Implant Package - Appointment Booking, X-Ray, and Treatment Plan Included
$1.00
![Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle](https://www.gosteppe.com/cache/small/product/269537/legacy-main-e3e965ff85d9032ca79f72b8.webp)
Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle
$423.00
Wall-Mounted Towel Storage Box Large Capacity for Bathroom
$8.42
Loctite 480/411/403/407/406/414/420/401/415 Heat-Resistant 495 High-Temp 417/416 Instant Adhesive
$26.80
![[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)
