Dummies Guide for Bluetooth LE lol

Is there a Dummies Guide to Bluetooth LE out there? I'm trying to understand how to use it with an Arduino 101 and Android. Understanding the UUID numbering is confusing. Controlling multiple outputs also. There's a lot of great videos out there showing one LED being controlled by Android.

Swear it's the "Can't see the forest for the trees syndrome" lol

Any guidance would be appreciated. Thanks.

Mike

This might help Reliable Bluetooth LE Comms Between Arduino and MIT App Inventor (AI2) – Arduino++