Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Model | TSL2561 |
| Interface Protocol | I2C |
| Operating Voltage | 3.3V - 5V |
| Light Spectrum | Visible and Infrared |
| Dynamic Range | 1 to 40,000 Lux |
| Integration Time | Adjustable (13ms to 402ms) |
| Board Dimensions | 22mm x 18mm |
| Mounting Holes | 4 x 3mm |
| Weight | 2.5 grams |
| Package Includes | 1x GY-2561 Module |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for Arduino Projects
This sensor works flawlessly with my Arduino Uno. The I2C communication is stable, and the library support is excellent. Measuring ambient light for my smart home project was easier than expected.
Anonymous
Mar 21, 2026
Rating: 5/5
Compact and Reliable
Small form factor makes it easy to fit into tight enclosures. The data output is clean, and the adjustable integration time allows for fine-tuning based on specific environment needs.
Anonymous
Mar 21, 2026
Rating: 5/5
Excellent sensitivity
I was surprised by how well this distinguishes between different light sources. Using it to control LED strips based on room brightness, and the response is smooth and natural.
Anonymous
Mar 09, 2026
Rating: 4/5
Good value but needs careful wiring
The module itself is great and accurate. However, make sure you check your voltage levels if using with 3.3V logic boards. Once wired correctly, it reads lux values very consistently.
Anonymous
Mar 06, 2026
Rating: 5/5
Great for learning IoT
Bought this for a university project on automated lighting. The dynamic range is impressive, handling both dim indoor light and bright sunlight without saturating immediately. Highly recommended.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid performance
Works as advertised. The only minor issue was that the included pin headers were not soldered, so I had to do that myself. Otherwise, the sensor accuracy is top-notch for the price.
Q: What is the maximum lux value this sensor can accurately read?
A: The TSL2561 sensor has a dynamic range up to 40,000 Lux, making it suitable for both indoor and outdoor daylight applications.
Q: Can I use this underwater?
A: No, this module is not waterproof or water-resistant. It must be kept in a dry environment or housed in a sealed enclosure if used near moisture.
Q: Is this module compatible with Raspberry Pi?
A: Yes, the GY-2561 is fully compatible with Raspberry Pi via the I2C interface. Ensure you enable I2C in the Raspberry Pi configuration settings.
Q: Does this come with a library for ESP32?
A: While we do not provide a proprietary library, the TSL2561 is widely supported by community libraries available in the Arduino IDE and PlatformIO which work perfectly with ESP32.
Q: How do I change the integration time?
A: The integration time is adjustable via software commands sent over the I2C bus. You can select from 13ms, 101ms, or 402ms depending on your library functions.
Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor
$76.50
Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students
$32.00
C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine
$16,005.00
Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification
$118.00
Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires
$4.80
Pad Printer Accessories: 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Assembly
$5.40
3M Industrial Scouring Pad 7447C, Metal Rust Removal, Stainless Steel Brushing and Polishing Cloth
$4.00
Qinghe Blazing Rose Series
$1,580.00
Cheddar Cheese Production Line, Front-End Processing and Deep Processing Machinery, Mozzarella Cheese Equipment
$25,480.00
MGQ Konjac Noodle Bubble Cleaning Machine, Fully Automatic Soaking and Lifting Washer
$17,555.40
Industrial Large Meat Grinder Fresh Meat Mince Chopper Fruit Vegetable Crusher Meat Grinding and Mixing Integrated Meat Filling Mixer
$32,030.00
Zhuolide D-302 UV Glue - Invisible Adhesive for Transparent Glass, Metal, Coffee Tables, and Crystal Glass, 250g Large Capacity
$130.00
Hell Training Rock Guitar by Shinichi Kobayashi: Electric Guitar Tutorial for Speed Playing
$106.00
![[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner](https://www.gosteppe.com/cache/small/product/270397/legacy-main-04181167165316608773b986.webp)
[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner
$8.42
Quilt Storage Bag – Large-Capacity Waterproof & Moisture-Proof Moving Pack for Clothes, Luggage, and Comforters
$10.10
Ins-Style Cute Quilted Cotton Camera Storage Bag for CCD and Instant Cameras, Soft Drop-Proof Dust-Proof Small Pouch
$8.50
Gongma Car Tire Stone Removal Tool Set, Tire Cleaning Hook, Multi-Function Stone Picker and Extractor
$40.00
Feileniao 'Competing Beauties' Traditional Chinese Painting Gift Set - Gongbi Line Drawing DIY Kit for Beginners & New Year Gifts
$41.60
9A Natural Ice-Grade Aquamarine Loose Beads - Handmade DIY Bracelets and Necklaces for Women, Devil Blue Crystal Single Bead
$23.10
High-Precision Digital Tire Pressure Gauge with Large Display for Car Inflation
$49.50
Premium Factory Price Low-Temp 3D Printing Pen (2-Pack) - Compatible with PCL Filament
$67.91
Music Theory Book Jazz Theory Introduction Volume 1 Jazz Teaching Theoretical Knowledge Basic Textbook Tutorial HD Electronic Version
$5.00
Extra-Large Transparent Plastic Storage Box with Lid, Home Organizer for Clothes and Household Items
$4.80
Baijiali Artistic Eyebrow Hair Transplant: Bilateral Filling for Sparse Areas, Dense and Natural-Looking Results
$7,800.00
Plastic U-Shaped Trough Mold for Yam Cultivation, Directional Shallow Growth Slots (100 Pieces, Free Shipping)
$31.40
Maikeku Commercial Slow Juicer, Large Pulp-Separating Juice Extractor with High Power, Wide Mouth, Fully Automatic for Street Vending
$7,456.32
Continental CSC5 Tire 245/50R18 104V MO-V for Mercedes-Benz Viano, Vito, V260
$882.00
English Vocabulary Flashcards for Classroom Teaching - Categories Include Weather, Days, Months, Clothing, Home, Seasons, Fruits, Food, and Professions
$8.42
Cabinet Storage Box, Foldable Rattan-Style Basket for Countertop Snacks, Clothes, and Toys
$19.90
Custom PVC Sign Letters, Advertising Signs, Branding Wall Characters, Snowflake Board, Acrylic Crystal Letters for Background Walls
$5.00
![[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)
