LM393 Light Sensor Module Digital Analog Output 4Pin 3.3V 5V Photosensitive Diode Sensor

LM393 Light Sensor Module is a light detection sensor module that can detect the intensity of surrounding light. It works with both 3.3V and 5V power supply and provides analog and digital output signals. The module uses an LM393 comparator IC and a photosensitive sensor for stable and accurate light sensing. Sensitivity can be adjusted using the onboard potentiometer.

It is widely used in automatic lighting systems, smart home projects, robots, and day/night detection applications. The module is easy to interface with Arduino, Raspberry Pi, ESP32, and other microcontrollers.

Features:

• Operating Voltage: 3.3V – 5V
• Analog and Digital Outputs
• Adjustable sensitivity
• LM393 comparator chip
• Power and output indicator LEDs
• Compact and easy to use

Pin Configuration:

• VCC – Power Supply
• GND – Ground
• DO – Digital Output
• AO – Analog Output