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Sensor-Arduino Photo Resistor
SKU: ARD-0045-G01
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Availability: In Stock (3 on hand)
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Short Description
The KY-018 Photo Resistor Module detects changes in ambient light using a light-dependent resistor (LDR).
The LDR's resistance reduces as the surrounding light intensity increases.
The module creates a voltage divider with a fixed 10 k Ω resistor and outputs an analogue signal that may be read by an Arduino or other microcontroller.
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Specifications:
Product Type: Photo Resistor / Light Sensor Module.
Sensor Type: LDR (Light Dependent Resistor).
Output Type: Analog.
Operating Voltage: 3.3–5 V DC.
Fixed Resistor: 10 k Ω.
Interface: Signal / VCC / GND.
Number of Pins: 3.
Signal: Analog voltage proportional to the voltage-divider response.
LDR Resistance: Changes according to ambient light intensity.
Typical Dark Resistance: 1 MΩ.
Dimensions: 21 × 15 × 6 mm.
Module Type: PCB Sensor Module.
Compatible Platforms: Arduino, Raspberry Pi, Raspberry Pi Pico, Micro: Bit and other microcontroller platforms.
Applications: Light detection, brightness sensing, automatic lighting, night-light projects, light alarms, robotics, Arduino projects and DIY electronics.