Friday, 3 July 2015

Heart Rate Monitor

08:46  Telli k  No comments

I built a relatively simple heart rate monitor circuit that is monitored and controlled by an Arduino Uno. The theory of operation is based on the fact that infrared (IR) light is partially absorbed by blood. When your index finger is placed between the IR emitter and detector, the amount of IR ligh...
By: pureAmericanbrother

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from Instructables: exploring - technology - robots http://ift.tt/1NDfmBX

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