KY-039 Heartbeat sensor module
KY-039 Heartbeat sensor module
Contents 1 Picture ..........................................
KY-039 Heartbeat sensor module
KY-039 Heartbeat sensor module
Contents 1 Picture ................................................................................................................................................................. 1 2 Technical data / Short description ....................................................................................................................... 1 3 Pinout ................................................................................................................................................................... 5 4 Code example Arduino ......................................................................................................................................... 5 5 Code example Raspberry Pi ................................................................................................................................. 7
Picture
Technical data / Short description
While sticking a finger between the infrared diode and the photo
transistor you can detect the pulse at the signal out.
The explanation of the functionality of a photo
transistor is simple: It works like a normal
transistor - you will detect a higher electricity if the control voltage is higher. Instead of the control voltage, the photo
transistor uses the light. If it it's a stronger light, you will measure a higher electricity.
Export: 16.06.2017
Copyright by Joy-IT - Published under CC BY-NC-SA 3.0
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KY-039 Heartbeat sensor mod...