5
Connecting to the Host
When the Aimtrak is powered up, or when trigger is activated, the board will start
to advertise its presence to the host system. During this time, the host needs to
be told to search for devices. It should discover the device:
The next step is to select the device and pair with it. A temporary key is
exchanged and an encrypted connection is set up.
When the device loses connection, or resumes from power-saving mode, it will
automatically reconnect without intervention. The stored encryption keys are re-
used.
