LDR Light Sensor Module (3-Pin)
Overview
The LDR Light Sensor Module is a simple, reliable module that detects ambient light intensity using a Light-Dependent Resistor (LDR). It provides an analog output that varies with the surrounding light level, making it ideal for Arduino, ESP32, Raspberry Pi, and other microcontroller projects.
⚙️ Key Features
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Based on a Light Dependent Resistor (LDR)
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Detects ambient light intensity
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Analog output for precise light measurement
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Operates from 3.3V – 5V DC
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Compact and lightweight design
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Easy to interface with Arduino and other microcontrollers
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Suitable for indoor and outdoor light sensing applications
📦 Technical Specifications
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| Sensor Type | LDR (Light Dependent Resistor) |
| Operating Voltage | 3.3V – 5V DC |
| Output Type | Analog (AO) |
| Number of Pins | 3 (VCC, GND, AO) |
| Response Wavelength | Peak at approximately 540 nm |
| Response Time | ≤ 30 ms (Rise), ≤ 30 ms (Fall) |
| Operating Temperature | -30°C to +70°C |
| Dimensions | Approx. 32 × 14 mm (Model dependent) |
📌 Pin Configuration
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| VCC | 3.3V – 5V Power Supply |
| GND | Ground |
| AO | Analog Output |
