3-Pin LDR Light Sensor Module for Arduino

The 3-Pin LDR Light Sensor Module is designed to measure ambient light intensity using a photoresistor (LDR). The resistance of the LDR changes with light — decreasing as light increases and increasing as light decreases.
This behavior can be easily read as an analog signal by Arduino or any other microcontroller. It is a great choice for light-sensitive and automation projects.

Features:

• Operating Voltage: 3.3V – 5V

• Output Type: Analog output

• Compact 3-pin design (VCC, GND, OUT)

• Adjustable sensitivity (in some versions with potentiometer)

• Easy to interface with Arduino, ESP32, or Raspberry Pi

Applications:

• Automatic street light systems

• Light-following robots

• Smart home lighting

• Day/night detection

• Security and automation systems