LDR Sensor Module | Photosensitive Light Detection Sensor Module with LM393 Comparator for Arduino, ESP32, Raspberry Pi & DIY Electronics
⭐ Key Features
🌞 Accurate Ambient Light Detection – Detects surrounding light intensity and provides digital output when the preset light threshold is reached.
⚡ Built-in LM393 Comparator IC – Converts the LDR's analog signal into a stable digital output for easy interfacing with microcontrollers.
🎯 Adjustable Sensitivity – Onboard potentiometer allows precise adjustment of the light detection threshold for different applications.
🔌 Wide Operating Voltage – Operates from 3.6V to 5V DC, making it compatible with both 3.3V and 5V development boards.
💡 LED Status Indicators – Power and output LEDs provide quick visual feedback of module operation and detection status.
🛠️ Easy Installation – Compact PCB with mounting hole enables quick installation in DIY electronics and embedded systems.
🤖 Microcontroller Compatible – Works with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, NodeMCU, and other development boards.
📚 Perfect for Learning & DIY Projects – Ideal for students, hobbyists, makers, and engineers working on automation and IoT projects.
📝 Product Description
The LDR Sensor Module (Photosensitive Light Detection Module) is a compact light-sensing module designed to detect ambient light levels and provide a digital output based on a user-adjustable threshold. It combines a high-quality Light Dependent Resistor (LDR) with the reliable LM393 comparator IC, making it easy to integrate into Arduino, ESP32, Raspberry Pi, and other embedded systems.
The onboard potentiometer allows users to adjust the sensitivity according to their project requirements. When the surrounding light crosses the preset threshold, the module changes its digital output, making it perfect for automatic lighting, solar energy systems, security devices, robotics, and smart home automation.
Its compact design, indicator LEDs, and simple wiring make it an excellent choice for beginners and professionals alike.
📦 Package Includes
1 × LDR Photosensitive Light Detection Sensor Module
📋 Specifications
| Feature | Details |
|---|---|
| Product Type | LDR Light Detection Sensor Module |
| Sensor Type | Light Dependent Resistor (LDR) |
| Comparator IC | LM393 |
| Operating Voltage | 3.6V – 5V DC |
| Output Type | Digital Output |
| Sensitivity | Adjustable via Potentiometer |
| Indicators | Power LED & Output LED |
| Mounting | PCB Mounting Hole |
| Interface | VCC, GND, DO |
🎯 Applications
✔ Automatic Street Lighting
✔ Smart Home Automation
✔ Solar Charging Controllers
✔ Automatic Irrigation Systems
✔ Arduino Projects
✔ ESP32 & ESP8266 Projects
✔ Raspberry Pi Projects
✔ IoT Applications
✔ Ambient Light Monitoring
✔ Light-Activated Alarms
✔ Robotics Projects
✔ Security Systems
✔ Electronic Learning Kits
✔ STEM Education Projects
✔ DIY Electronics
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