Linux Boilerplate

Took way more hours than strictly necessary to get linux working.  Bluez is really difficult to work with especially for someone who rarely touches C/C++. Sharing boilerplate code I used to get working to hopefully save next person the hassle.

* Fedora 21.
* bluez (5.29)
* metawear C++ library to drive the device
* gattlib library which I built from source.

Significant gotchas around threading model within gattlib.  BT notifications need to be dispatched to metawear library on a separate thread.

use hcitool lescan to find the device id and then feeds into following C script as a command line arg. Make lights flash waits 5 secs and then wraps up.


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