LDR 5MM LM393 Module – 4 Pin ADC

The LDR 5MM LM393 Module (4 Pin ADC) is a compact and reliable light-sensing module designed for precise ambient light detection. Built with a 5mm Light Dependent Resistor (LDR) and the LM393 comparator IC, this module converts light intensity into both analog and digital output signals, making it ideal for microcontroller-based projects.

It features an onboard potentiometer for adjustable sensitivity, allowing accurate threshold setting for different lighting conditions. The 4-pin interface ensures easy connection with Arduino, Raspberry Pi, ESP8266/ESP32, PIC, and other development boards.

Perfect for automation, robotics, and IoT applications, this module offers stable performance, low power consumption, and simple integration.

Key Features

• 5mm LDR for accurate light intensity detection

• LM393 high-precision voltage comparator

• Analog (ADC) and Digital output support

• Adjustable sensitivity via onboard potentiometer

• LED indicators for power and signal status

• 4-pin interface for easy wiring

Applications

• Automatic street light systems

• Light-controlled switches

• Smart home automation

• Robotics and line-following projects

• IoT and embedded system projects