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Detailed Description:

Gain a simple yet powerful way to detect ambient light with the LDR Sensor – LM393 Photosensitive Light-Dependent Control Sensor module. This versatile sensor is the perfect component for building a wide range of projects, from automatic streetlights and smart home automation to robotics and security systems. The module’s intelligent design combines a Light-Dependent Resistor (LDR) with the precise LM393 voltage comparator, providing you with both a raw light intensity measurement and a clean, binary signal.

The module provides both analog (AO) and digital (DO) outputs. The digital output, which is the core feature of this module, provides a simple HIGH or LOW (1 or 0) signal based on whether the ambient light is above or below a set threshold. This makes it ideal for simple on/off control, such as automatically switching a light or a relay. The trigger point for this digital signal is fully adjustable via an on-board potentiometer, allowing you to easily calibrate the sensor's sensitivity to suit your specific application and environment without changing your code.

For more nuanced projects that require a precise light intensity reading, the module also offers an analog output. This output provides a continuous voltage signal that is inversely proportional to the light intensity, which can be read by an Arduino or any microcontroller's analog input pin. Operating on a voltage range of 3.3V to 5V, this module is fully compatible with most development boards. With its dual output functionality, easy-to-use potentiometer, and built-in indicator LEDs for power and output status, the LM393 LDR sensor module simplifies your circuit design and is a must-have for light-sensitive projects in Pune, Maharashtra, India.

The LDR Sensor Module is a compact and easy-to-use analog light sensor that reacts to changes in ambient light. It uses an LDR (photoresistor) whose resistance decreases with increasing light intensity. The module outputs an analog voltage signal proportional to the light level, which can be read by any microcontroller's ADC pin.

This makes it ideal for applications such as automatic street lighting, smart home systems, light meters, and solar trackers. It also serves as an excellent component for STEM education and beginner electronics projects.

Key Features:

• Based on Light Dependent Resistor (LDR)

• Analog output proportional to light intensity

• Plug-and-play module – easy to interface

• Compatible with Arduino, ESP32, Raspberry Pi, STM32

• Perfect for DIY, hobby, and automation projects

• Can be used for light threshold detection

• Compact design and low power consumption

Technical Specifications:

How to Use:

1. Connect VCC to 5V, GND to ground, and A0 to analog pin of your microcontroller.

2. Read analog values using analogRead() (Arduino) or equivalent.

3. Use code to trigger actions (like turning on a light) when the brightness crosses a set threshold.

4. Can be paired with a relay module for switching AC/DC loads.

Ideal for automatic lighting systems or daylight-triggered controls.

Applications:

• Automatic street lighting systems

• Smart homes & IoT lighting control

• Solar trackers & daylight detectors

• Ambient light sensors for electronics

• Security lighting & intruder detection

• Photo-triggered robots and displays

• STEM education & beginner Arduino projects

Package Includes:

• 1 x LDR Sensor Module (Analog Light Sensor)

• (Jumper wires or mounting screws not included)