Description
About this item:
The KY-039 is a basic pulse sensor module that detects heartbeats by measuring changes in blood flow through a fingertip using an infrared LED and photodetector. It is commonly used in beginner electronics, Arduino health-monitoring projects, and DIY biomedical experiments.
Specifications & Features:
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Operating Voltage: 5V DC
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Sensor Type: Photoplethysmograph (PPG) using IR light
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Components:
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IR LED (transmitter)
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Phototransistor (receiver)
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Output: Analog output (voltage varies with heartbeat signal)
Applications:
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Heartbeat/pulse monitoring
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DIY health electronics
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Arduino-based biomedical projects
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Educational experiments on biosignals
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