Photosensitive Light Intensity Sensor Module for Arduino
Photosensitive Light Intensity Sensor Module for Arduino
Photosensitive Light Intensity Sensor Module for Arduino
Detect and measure ambient light intensity with precision using this compact Photosensitive Brightness Resistance Sensor Module. Designed for seamless compatibility with Arduino and other popular microcontroller platforms, this analog sensor module is ideal for hobbyists, students, and electronics engineers looking to add light-sensing capability to their DIY projects.
Whether you're building an automatic night light, a smart street lamp controller, a weather station, or any light-responsive automation project, this module delivers reliable analog output for accurate brightness readings.
Key Features
- Analog Output: Provides smooth, continuous voltage output proportional to ambient light intensity — perfect for precise ADC readings on Arduino and compatible boards.
- Resistance Sensor Technology: Uses a photoresistor (LDR) principle — resistance changes based on detected light levels, enabling real-time brightness monitoring.
- Wide Compatibility: Works with Arduino Uno, Nano, Mega, Raspberry Pi, ESP8266, ESP32, and most 3.3V/5V microcontroller development boards.
- Compact & Easy to Use: Small form factor with standard pin headers — simply wire up VCC, GND, and signal, then start reading values immediately.
- Polymer Construction: Durable polymer material ensures reliable performance across a variety of environments.
- Customizable: Supports project customization for a range of DIY electronics and automation builds.
Specifications
- Sensor Type: Photoresistor / LDR (Light Dependent Resistor)
- Output Type: Analog Signal
- Operating Voltage: 3.3V – 5V DC
- Material: Polymer
- High-Concern Chemicals: None
- Country of Origin: Made in China
Ideal Applications
- Automatic lighting control systems
- Smart home and IoT projects
- Sunlight / daylight detection
- Weather monitoring stations
- Robotics and automation
- STEM education and electronics learning kits
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Frequently Asked Questions
Q: Is this photosensitive sensor module compatible with Arduino Uno and Nano?
A: Yes! This light intensity sensor module is fully compatible with Arduino Uno, Nano, Mega, and most other Arduino-based boards. Simply connect VCC to 5V (or 3.3V), GND to ground, and the analog output pin to any analog input (A0–A5) on your Arduino to start reading light values immediately.
Q: What kind of output does this sensor produce — analog or digital?
A: This module produces an analog output signal, providing a continuous voltage range that corresponds to the detected light intensity. This allows for more nuanced and precise readings compared to simple digital (on/off) sensors, making it ideal for applications that require graduated light level measurements.
Q: Can this sensor be used outdoors or in bright sunlight?
A: Yes, this photoresistor-based sensor can be used in various lighting environments, including bright outdoor conditions. It is suited for daylight detection, smart lighting systems, and similar outdoor automation projects. For best results, protect the PCB from direct water exposure by housing it in an appropriate enclosure.