This code:
 1) Blinks an LED to User's Live Heartbeat PIN 13
 2) Fades an LED to User's Live HeartBeat  PIN 5
 3) Determines BPM
 4) Prints All of the Above to Serial
How do you print the fact that an LED is blinking to the serial port?
How about fading?
You failed to post all of your code, so we can't see just of much of that last comment is nonsense. Nor can we tell you how to read and parse data in some other application, when we can't see what data needs to be read and parsed.