Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switching Output (0 and 1) |
| Detection Component | High-quality Photoresistor |
| Comparator Chip | LM393 |
| Sensitivity Adjustment | Potentiometer included |
| PCB Size | 32mm x 14mm |
| Mounting Holes | 3mm diameter |
| Response Time | Microsecond level |
| Indicator LED | Power and Trigger status LEDs |
| Application Scope | Arduino, Raspberry Pi, DIY Electronics |
Anonymous
Mar 21, 2026
Rating: 4/5
Good value, clear instructions needed
The hardware quality is solid and the LM393 chip is reliable. However, beginners might struggle slightly without a wiring diagram in the package. Once connected correctly, it performs well.
Anonymous
Mar 19, 2026
Rating: 5/5
Perfect for my Arduino project
This sensor module works exactly as described. The sensitivity potentiometer makes it very easy to calibrate for different lighting conditions. I used it for a night-light automation project and it triggered reliably every time.
Anonymous
Mar 12, 2026
Rating: 5/5
Fast response time
I tested this against a more expensive brand, and the response time is virtually identical. Great for detecting rapid changes in light intensity. Highly recommended for robotics applications.
Anonymous
Mar 06, 2026
Rating: 5/5
Great for school projects
Bought five of these for a class project. All of them worked out of the box. The digital output makes interfacing with microcontrollers very simple compared to analog sensors.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid build quality
The PCB looks clean and the soldering is neat. The only reason for 4 stars instead of 5 is that the mounting holes are a bit tight for standard screws, but it's a minor issue.
Anonymous
Mar 02, 2026
Rating: 5/5
Reliable light detection
Using this to trigger a camera trap at dusk. It has been working consistently for two weeks now without any false triggers. Very happy with the purchase.
Q: Can I connect this directly to a 3.3V microcontroller like ESP32?
A: Yes, the module operates within a 3.3V to 5V range, so it is fully compatible with 3.3V logic systems like the ESP32 or Raspberry Pi GPIO pins.
Q: Does this module output analog or digital signals?
A: This module provides a digital switching output (0 or 1). If you need an analog reading of light intensity, you would need to use the photoresistor directly or look for a specific analog version.
Q: What is the maximum current this module can handle?
A: The output pin is designed for signal logic levels and should not be used to drive high-current loads directly. Please use a transistor or relay module if you need to switch higher power devices.
Q: How do I adjust the sensitivity?
A: There is a blue potentiometer on the board. Turn it clockwise to decrease sensitivity (requiring darker conditions to trigger) or counter-clockwise to increase sensitivity.
Q: Is the photoresistor replaceable if it breaks?
A: Yes, the photoresistor is through-hole soldered, so it can be desoldered and replaced with a standard LDR if damaged, though they are quite durable under normal use.
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
Ulanzi CSS1 Camera Quick-Release Shoulder Strap - Universal Anti-Slip Crossbody Belt for Fujifilm, Sony, and Canon DSLR/Mirrorless Cameras
$109.00
Invisalign Retainer Storage Case Portable Travel Container for Clear Aligners Dentures Orthodontic Appliances Cleaning Q
$6.59
70*275mm Flocked Abrasive Pad Circular Backing Sanding Disc Polishing Sheet Self-Adhesive Scouring Pad Brushed Finish Cloth
$4.05
50/100 Pairs Men's Foot Therapy Short Socks - Odor-Resistant, Low-Cut, Summer Thin, Disposable Street Market Socks
$19.99
Biliansheng No-Shave Hair Transplant - Hairline and Crown Restoration for Men and Women
$100,000.00
![[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)
