LDR Photosensitive Light Sensor Module – 4-Pin Analog and Digital Output Light Detection Module for Arduino
LDR Photosensitive Light Sensor Module – 4-Pin Analog and Digital Output Light Detection Module for Arduino
The LDR Photosensitive Sensor Module (4-Pin) is a simple and effective light detection module designed for Arduino and other microcontroller platforms. Using a Light Dependent Resistor (LDR), this module can detect the intensity of ambient light and convert it into corresponding analog or digital signals. With both analog output (AO) and digital output (DO), it provides flexible integration for a variety of applications such as smart lighting systems, automatic night lights, solar tracking, and light-activated devices.
Whether you're building an energy-efficient automation system or experimenting with light-based controls, this module offers a compact and beginner-friendly solution.
🔍 Key Features:
Light Detection using LDR: Responds to ambient light intensity by varying resistance based on light exposure
Dual Output:
Analog Output (AO): Provides variable voltage based on light intensity
Digital Output (DO): Outputs HIGH or LOW signal depending on the brightness threshold (set by the onboard potentiometer)
Adjustable Sensitivity: Onboard potentiometer allows users to set custom threshold levels for digital output
Onboard Indicator LED: Visual feedback when light level crosses the set threshold
Standard 4-Pin Interface: VCC, GND, AO, DO for easy wiring and compatibility
Operating Voltage: 3.3V to 5V – works well with Arduino, ESP32, Raspberry Pi, and other boards
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PCB Layout & Design Services
We provide professional PCB layout and design services for electronics projects, prototypes, and small to medium production needs. Our goal is to deliver accurate, manufacturable, and well-documented PCB designs tailored to your specific requirements.
How to Request a PCB Layout/Design:
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- We will assess your diagram and provide a quotation based on the complexity and requirements.
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How to Request a PCB Layout / Design
- Send your complete schematic or diagram via our Facebook page.
- Our team will review your diagram carefully to understand the design scope and requirements.
- A detailed quotation will be provided based on:
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PCB Layout & Design Requirements
To ensure quality and accuracy, please note the following:
- All schematics must be clear, complete, and properly labeled
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✅ Bill of Materials (BOM)
✅ Component Placement List (CPL / Pick-and-Place file)
✅ Wiring diagram (PDF)
✅ PCB board layout (PDF)
All files are prepared to be manufacturer-ready and easy to review.
Pricing Information
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- Board size and layer count
- Types of components used (SMD, through-hole, fine-pitch, BGA, etc.)
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Design Review & Approval Process
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Payment Methods
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