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.




Write a review

Please login or register to review

KY-039 3pin Fingertip Heartbeat Sensor for Arduino

  • Product Code: KY-039
  • Availability: In Stock
  • $2.25


Tags: KY-039, 3pin, Fingertip, Heartbeat, Sensor, for, Arduino