Among the most basic forms of biometric data we may collect from ourselves is the heart beat.Wether to control our body response to sports activities, keep track of our health or to observe involuntary response to external interaction, this is one of the important parameters that is collected by physicians, and specialists of a multitude of health-related areas. What I am describing in this post is just the implementation of one of simplest forms of obtaining a waveform that represents the heart beat of an individual.
