SPECIFICATIONS

Brand Name: NONE

Choice: yes

High-concerned chemical: none

Origin: Mainland China

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🎯 Product Highlights & Description

【Precise Light Sensing】: Equipped with a high-sensitivity 5516 photoresistor, this module accurately detects ambient light intensity changes, making it the perfect "eye" for your smart devices.

【Stable Digital Signal】: The built-in LM393 voltage comparator provides a clean, jitter-free digital (0/1) signal output. It's easier to read by microcontrollers and has stronger driving capability (＞15mA) than a bare photoresistor.

【Adjustable Sensitivity】: The onboard precision potentiometer allows you to easily fine-tune the light detection threshold, adapting to various application scenarios.

【Wide Compatibility & Easy Use】: Operates at 3.3V-5V, making it perfectly compatible with Arduino, ESP32, ESP8266, Raspberry Pi and other development boards. Only 3 pins to connect!

📝 Technical Specifications

Core Sensor: 5516 Photoresistor

Signal Chip: LM393 Voltage Comparator

Operating Voltage: DC 3.3V - 5V

Output Signal: Digital Switch (HIGH/LOW)

Drive Capacity: > 15mA

Detection Angle: ~60 degrees

🛠️ How to Use & Wiring Guide

Connection is incredibly simple (3 Wires):

VCC → 3.3V or 5V on your board

GND → GND on your board

DO → Any Digital Input Pin (e.g., D2 on Arduino)

How it Works:

When the light intensity falls below the threshold you set (by adjusting the potentiometer), the DO pin outputs LOW (0).

When the light intensity rises above the threshold, the DO pin outputs HIGH (1).

💡 Application Ideas

Smart Night Light: Automatically turns on LED strips when it gets dark.

Auto-Balcony Garden Light: Illuminate your plants at night without manual intervention.

Camera Auto-Shutter: Trigger photos when a shadow or light appears.

Weather Station: Detect sunrise and sunset.

Security Alarm: Trigger an alarm when a light beam is interrupted.

📦 Package Includes

5 x 5516 Light Sensor Modules (Your customers will love this bulk value!)

🔔 Friendly Note

Rotate the potentiometer clockwise to make it trigger in brighter conditions (increase sensitivity).

Rotate counter-clockwise to make it trigger in darker conditions (decrease sensitivity).

We provide beginner-friendly tutorials and code examples. Feel free to contact us if you need any help!