Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital Switch Output (0 and 1) |
| Detection Component | GL5528 Photoresistor |
| Comparator Chip | LM393 Wide Voltage Comparator |
| Sensitivity Adjustment | Potentiometer Adjustable |
| PCB Dimensions | 32mm x 14mm x 8mm |
| Mounting Hole Diameter | 3.1mm |
| Interface Pins | 4-Pin (VCC, GND, DO, AO) |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 |
| Application Range | Light control switches, camera exposure, brightness monitoring |
Anonymous
Mar 22, 2026
Rating: 5/5
Reliable analog and digital output
I appreciate that this module provides both DO and AO pins. The analog output allows for granular brightness readings, not just on/off states. The LM393 comparator is stable and doesn't fluctuate wildly near the threshold.
Anonymous
Mar 22, 2026
Rating: 5/5
Compact and efficient
The small footprint fits perfectly into my compact IoT enclosure. Power consumption is low, which is great for battery-operated projects. The soldering points are large enough for easy wiring.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for my Arduino night light project
This sensor module works exactly as described. The potentiometer makes it very easy to calibrate the threshold for when the digital output triggers. I used it to turn on an LED strip when the room gets dark, and it responds instantly.
Anonymous
Mar 06, 2026
Rating: 4/5
Great value, clear documentation needed
The hardware quality is solid for the price. It detected light changes accurately during my university lab test. I deducted one star because the pinout wasn't printed clearly on the back, so I had to look up a datasheet online to be sure.
Anonymous
Mar 05, 2026
Rating: 5/5
Easy to use for beginners
I am new to electronics and this was one of the first sensors I tried with my kids. Connecting it to the breadboard was simple, and the example code found online worked immediately. Highly recommended for learning.
Anonymous
Mar 05, 2026
Rating: 4/5
Good sensitivity range
Using this to monitor sunlight levels for my automated greenhouse shutter system. It handles the transition from dawn to day well. Just make sure to shield it from direct rain if using outdoors, as it is not waterproof.
Q: What is the response time of the sensor when light changes suddenly?
A: The GL5528 photoresistor typically has a rise and fall time in the range of tens of milliseconds, which is fast enough for most lighting control and environmental monitoring applications.
Q: Does this module output an analog voltage value or just a high/low signal?
A: It provides both! The 'AO' pin gives an analog voltage proportional to light intensity, while the 'DO' pin gives a digital high/low signal based on your potentiometer threshold setting.
Q: Can I connect this directly to a 3.3V microcontroller like an ESP8266?
A: Yes, the module operates on a wide voltage range of 3.3V to 5V, making it fully compatible with 3.3V logic systems like the ESP8266 or ESP32.
Q: Is the photoresistor replaceable if it gets damaged?
A: The photoresistor is soldered onto the PCB. While technically replaceable with soldering skills, it is designed as a sealed module. If damaged, we recommend replacing the entire module for consistent performance.
Q: How do I adjust the sensitivity of the light detection?
A: There is a blue potentiometer on the board. Use a small screwdriver to rotate it clockwise or counter-clockwise while exposing the sensor to your target light level until the indicator LED toggles as desired.
Electromagnetic Planetary Stir-Fry Pot Sugar Fillings Pre-made Dish Cooking Equipment Tomato Sauce Chili Sauce Stir-Fry Machine
$3,940.00
Factory Direct 6L Stainless Steel Round Buffet Warmer - Electric Heating with Flip-Top Lid for Hotel and Restaurant Use
$764.00
Polishing Workshop Grinding Platform Plasma Cutting Welding Fume Dust Removal Environmental Equipment 3000 Airflow Grinding Platform
$6,000.00
Tongyue Food Warmer Cabinet - Large Capacity Home Kitchen Hot Dish Heater for Autumn and Winter
$607.20
Taikang Bybo Dental - Swiss Straumann ITI Dental Implants with Metal Abutments (TK)
$20,000.00
Marie's Sketching Blending Stump Set for Artists - Highlight, Shadow, and Detail Tools with Silicone Tips and Sponge Blenders
$15.30
Bottled Water Stand – Inverted Rack with Pump Dispenser for Large Mineral/Pure Water Jugs
$18.50
Sketching Blending Stump Set - Fine & Round Tip Tools with Replaceable Sponge Heads for Highlight Creation, Drawing Correction, and Tracing
$7.26
Automatic Retractable Air Hose Reel Auto Repair Car Wash Shop Electric Reel Water Drum PU Air Pipe Sandblasting Hose
$72.20
![[Live Stream Exclusive] Taikang Bybo Dental - South Korean Dentium Dental Implants for Tooth Loss Restoration](https://www.gosteppe.com/cache/small/product/269973/legacy-main-5e274b6981a80a22f7dc25a6.webp)
[Live Stream Exclusive] Taikang Bybo Dental - South Korean Dentium Dental Implants for Tooth Loss Restoration
$2,480.00
Food-Grade Silicone Soap Mold - Toast Shape with Little Angel Design zx228
$19.40
Ultra-Fast High-Adhesion Strong Clear Packing Tape 4.5/5.5 Width Packaging Tape Large Roll Free Shipping Extra Sticky Type
$729.50
Genuine Yokohama Tires 205/215/225/235/245 45/50/55/60/65 R16/17/18/19
$220.00
Marie's Paper Blending Pen Set for Soft Sketches and Pastels - Professional Art Student Tools Including Blending Knives, Balls, Sponges, and Egg-Shaped Blenders for Oil Pastels and Drawing on Newsprint or Xuan Paper
$3.80
Toilet Storage Rack, Bathroom Floor-Standing Shelf, No-Drill Organizer for Toilet and Washing Machine
$26.00
Xiaoyaoyou Calligraphy Tracing Scroll - Antique-Style Mechanized Copybook for Beginners, Universal Kai Script Practice
$9.90
Commercial Tunnel Dryer - Conveyor Line for Drying Vegetables, Fruits, Herbs, and Agricultural Products
$36,019.00
Stainless Steel Over-Toilet Storage Rack – Floor-Standing Bathroom Organizer for Narrow Spaces Near Toilet or Washing Machine
$8.42
240 Drum Kit Techniques
$15.00
ZITAY D-TAP to DC Male Connector Power Cable for V-Mount Battery, Atomos Monitor Power Supply
$59.00
2025 New Flexible Silicone Food Warmer Plate - Multi-Functional and Rollable
$185.00
Michelin Tires 225 235 245 255 275/45 50 55 60R17 18 19 20 21 Run-Flat
$400.00
Narrow Gap Storage Rack for Behind Toilet - Bathroom Organizer Cabinet, Plastic Floor-Standing Unit for Restroom or Balcony
$24.20
Authentic Kayou Ultraman Cards - Zero & Tiga Classic Edition Full Box Deluxe Set with Max Star Cards (10 Yuan Pack)
$8.50
![[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics](https://www.gosteppe.com/cache/small/product/269958/legacy-main-ec3c299e01aeec8ca2d4d9fb.webp)
[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics
$287.00
Aromatherapy Candle Essential Oil, Soluble Fragrance Oil, Lily and Mint Scent, High Concentration Diffuser Stone and Soap DIY Material
$3.90
Disiple Commercial Fried Chicken Warmer with Heat Lamp for Egg Tarts, Chestnuts, and Sweet Potatoes
$1,045.00
Baby Rattle with Chewable Goat Skin - Traditional Wooden Hand-Shaken Toy for Newborns
$8.42
Low-Temperature 3D Stereoscopic Drawing Pen for Kids, 3D Printing Pen Consumables PCL Filament Coil
$10.20
GHL Small Wet Mixing Granulator Chicken Essence Feed Pelletizer Lab High-Speed Wet Mixing Granulator
$36,000.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[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)
