Dongle type of blood glucose meter

Gmate smart

https://www.youtube.com/watch?v=WI4GEtjm9dE
http://mobihealthnews.com/35934/philosys-receives-fda-clearance-for-iphone-connected-glucometer/


Dario
http://mydario.com/

糖护士
http://www.leiphone.com/news/201501/ITLU1T4OvNBxHFxA.html

 shift keying (FSK) modulation
http://scholarworks.uni.edu/cgi/viewcontent.cgi?article=1009&context=agss