Within this Instructable i will show you, how to implement a simple PPG (photoplethysmogram) sensor for arduino. This device uses infrared light to measure you pulse. You may know this technique from the fingertip pulse sensors in hospitals. This techniques gets more and more important again in wear...By: Marc_Escobaem
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from Instructables: exploring - technology - robots http://ift.tt/1xZxiS7
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