KY-039 3pin Fingertip Heartbeat Sensor for Arduino:
The KY-039 heartbeat sensor is designed to detect a pulse while a human finger is place between the infrared diode and the photo transistor. The pulse will be represented on the signal output pin.
This sensor works by using a photo transistor to detect the presence of light, in this case how much light is passing through a finger. When blood moves, the amount of light changes and that change can be detected as a pulse.
This can be easily modified to Oximeter by replacing the IR led with a Red colour LED.
KY-039 3pin Fingertip Heartbeat Sensor for Arduino
- Product Code: KY-039
- Availability: In Stock
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$2.25
Tags: KY-039, 3pin, Fingertip, Heartbeat, Sensor, for, Arduino