Bluetooth stack

A Bluetooth stack is software used to implement the Bluetooth host protocol stack. Bluetooth stack implementation can be of two types: The first is a general-purpose implementation that is usually for desktop computers, and it is flexible because additional Bluetooth profiles can be added through drivers. The second is an embedded system implementation, which is for devices where resources are limited, like peripheral devices. There are various types of Bluetooth stacks in the market like BlueZ, Bluedroid, Widcomm, Bluecode+, BlueLet, BlueMagic, etc (see Figure 2).