Figure 1.
(a) BLE protocol stack; (b) structure of a BLE data unit (note: the size of each field is expressed in bytes).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.