Description
About this item:
The KY-027 is an Arduino-compatible light detection module designed for interactive and educational projects. It’s often used in the popular “magic light cup” demo, where an LED lights up or reacts based on the ambient light level detected by the onboard phototransistor.
Key Features:
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Phototransistor: Detects ambient light levels
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LED Indicator: Provides visual feedback
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Comparator IC (LM393): Converts light signals into digital output
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Sensitivity Adjustment: Onboard potentiometer for threshold tuning
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Operating Voltage: 3.3V to 5V
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Interface: 3 pins → VCC, GND, DO (Digital Output)
Applications: Fun DIY electronics projects, Arduino learning kits, interactive light-controlled systems
Proximity Sensor
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