I have written about this topic before:
viewtopic.php?f=65&t=179154
I forgot to mention some PhDs. which solved the problem of an ANT+ or BLE or ECG live-streaming. These where: Andread Bader, PhD, Darren Haghue, PhD, Imran S. Haque, PhD, Dr. Ing. Rainer Blind, Scott S. Harden, PhD, MD with a sound card ECG device, Hugo Plácido da Silva, PhD. from Bitalino. There where others from well known companies, like Dave Lusty from Microsoft UK, Matlab with a BLE example who solved the problem of physiological sensor live-streaming. Also other great programmers offered a solution like Ivor Powell, Niels Knieling any many more. Happy that John Park from Adafruit has also to offer a great solution:
https://learn.adafruit.com/bluetooth-le ... e/overview