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LDR Light Sensor Module | Photoresistor Light Detection Sensor for Arduino, ESP32 & Raspberry Pi
Product Description
The LDR Light Sensor Module is a photoresistor-based sensor designed to detect ambient light intensity. As the surrounding light level changes, the resistance of the Light Dependent Resistor (LDR) changes, allowing the module to detect brightness variations.
The module includes an LM393 comparator, providing both analog and digital outputs. It is compatible with Arduino, ESP32, ESP8266, Raspberry Pi (with ADC for analog output), STM32, and other microcontroller platforms, making it ideal for smart lighting, automatic street lights, solar tracking systems, security systems, robotics, and IoT applications.
The adjustable sensitivity allows users to set the light detection threshold according to their project requirements.
Features
- Detects ambient light intensity
- High-sensitivity photoresistor (LDR)
- Analog and digital outputs
- Adjustable sensitivity via onboard potentiometer
- Onboard LM393 comparator
- Power and status indicator LEDs
- Low power consumption
- Compact PCB with mounting holes
- Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other microcontrollers
- Easy 4-pin interface
Specifications
| Feature | Specification |
|---|---|
| Sensor Type | LDR (Photoresistor) |
| Operating Voltage | 3.3V–5V DC |
| Output | Analog (A0) & Digital (D0) |
| Comparator IC | LM393 |
| Detection | Ambient Light Intensity |
| Sensitivity | Adjustable via Potentiometer |
| Interface | VCC, GND, A0, D0 |
| Operating Temperature | -20°C to +70°C |
| Module Dimensions | Approx. 32 × 20 mm |
Applications
- Automatic Street Lights
- Smart Lighting Systems
- Solar Tracking Systems
- Day/Night Detection
- Smart Home Automation
- Robotics
- IoT Projects
- Environmental Monitoring
- Educational Electronics
- DIY Electronics
Product Details
- Category
- Sensors & Modules
- Type
- Light Sensor
- Vendor
- Passion 3D World
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