GATT services and characteristics
In contrast with ?classic?
The actual functionality of a BLE device is implemented by means of attributes which can be read, written, or enabled for notification/indication, depending on the attribute type.
Reverse Engineering the Estimote
They?re also predicting a battery life of up to 2 years. However our beacon arrived at 55 percent charge, and it is now at 33 percent after just a month, so that seems somewhat of an optimistic prediction?and makes that sealed enclosure more of a liability than an asset.