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.
Biliansheng Hair Transplant: Hairline Restoration and Top Density Enhancement
$10,000.00
Yingtou NO.9 Nylon Scouring Pad Roll - Industrial Rust Removal and Cleaning Cloth Manufacturer
$84.00
PELICAN 1170 Safety Protective Case Outdoor Waterproof Case Pelican Small Moisture-Proof Bracelet Case Free Shipping
$595.00
Disposable Face Towel Storage Box Wall-Mounted for Bathroom
$8.42
Traditional Handmade Sheepskin Rattle Drum for Babies - Wooden Non-Toxic Teething Toy for Early Education (Intangible Cultural Heritage)
$25.90
Commercial Vegetable Cutter for Chili, Branches, Pandan Leaves; Dicing and Slicing Machine; 304 Stainless Steel Bean Cutter
$18,630.00
Heavy-Duty Paper Cutter Parts - 20-Year Shandong Store Blade Holder Wooden Block Replacement Pad
$50.00
Ammonia Decomposition Hydrogen Production Equipment, Ammonia Cracking Furnace, Liquid Ammonia to Hydrogen System, Air Separation Unit
$15,479.00
Strawberry Planting Trough - Soil-Free A-Frame Vertical Planter for Vegetables and Fruits
$14.80
Forged Steel Wheel Hub Bolts Grade 12.9 Extended Screws Fade-Resistant for VW, Audi, Mercedes-Benz, BMW
$95.00
Retainer Storage Case Orthodontic Appliance Soaking Cleaning Box Portable Invisible Aligner Holder for Dentures
$2.80
Baby Sheepskin Rattle and Shaker Stick - Brass and Peach Wood, Old-Style Handmade, Chewable, Newborn Gift Box
$74.00
Portable Orthodontic Retainer Cleaning Case - Rotating Travel Box for Invisible Aligners
$17.60
Full Denture Soaking and Storage Box with Filter Net for Retainers and False Teeth
$4.80
Anka Bella Face Painting Pen Facial Special Brush Embossing Pen Line Drawing Petal Professional Pigment Pen
$4.17
Balloon Warm Star Pre-sale: Do You Have an Illness? Phase 1 - Clash of Hearts Little Chu Su Series Merchandise
$16.00
Car Tire Stone Removal Hook - Portable Multi-function Tool for Cleaning Gravel from Tire Treads
$7.00
Imported TRANS Gearbox Eccentric Bearing 614 59 7187 616 0608 11-15 11 YSX
$183.00
Sichuan Rongxian Earthware Minfeng Wine Jar, Home Pottery with Porcelain Liner, 600-Jin Unglazed Sealed Fermentation Vessel for Homemade Liquor
$901.00
Garlic Drum Sorting Machine - Single-Clove Garlic Grading Separator and Onion Sizing Sorter - Factory Direct Sales
$38,080.00
Aizaofang Food-Grade Soft Silicone Handmade Soap Mold Korean Rectangular 3D Tree Shadow Silicone Mold
$23.00
JMC Yusheng & Yuhu Parts – Crankshaft Position Sensor, Signal Sensor, Original Equipment
$95.00
![[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set](https://www.gosteppe.com/cache/small/product/269490/legacy-main-410a655856aab1e0462d6c84.webp)
[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set
$6.63
Leak-Proof Retainer Case with Double-Layer Filter for Braces, Aligners, and Dentures - Portable Cleaning and Soaking Box
$22.50
Car Tire Stone Removal Hook Tool, Explosive Tire Prevention Gadget, Durable Zinc Alloy Tire Cleaning Hook for Automotive Care
$10.90
![[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline](https://www.gosteppe.com/cache/small/product/269486/legacy-main-da7e0cd07f3b7d2f88646684.webp)
[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline
$4,500.00
Japan Original FEC Lifting Chain - Specialized for Electric Hoist, 6.3mm Diameter Carburized Lifting Chain
$223.00
X-RAY Coating Thickness Gauge - Desktop Tianrui Professional Analyzer for Metal Electroplating Layers
$9,589.60
Heavy Truck Tire Cleaning Strips - Wear-Resistant Mud Flaps and Inner Tube Skirts - Decorative Tire Tassels
$9.05
Mixue Bingcheng Tanned Snow King Blind Box Figure Girls Gift Birthday Cute Plush Keychain Holiday Present
$21.01
![[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)
