KY-018 LDR Sensor Module

Description

About this item:

• Function: It detects ambient light levels and provides an output signal proportional to the light intensity.
• Components: The module primarily consists of a Light Dependent Resistor (LDR), also known as a photoresistor, and a fixed resistor, forming a voltage divider circuit.
• Working Principle: The LDR’s resistance changes significantly with light intensity; its resistance decreases with increasing light and increases in darkness, allowing the module to sense light variations.
• Technical Specifications:
  • Operating Voltage: 3.3V to 5V DC.
  • Output Type: Analog (variable voltage depending on light intensity)
• Applications: Commonly used for ambient light detection, automatic lighting systems, light intensity measurement, and various DIY projects requiring light-sensing capabilities.