Understanding BLE Connection

This post looks at Bluetooth Low Energy (BLE) link layer states. There are two forms of Bluetooth wireless technology systems. They are Basic Rate(BR) and Low Energy (LE) communication. This article summaries the connection procedure and its corresponding states . Basically BLE is a star topology network in which master device manages the connection, and can be connected to multiple slaves and slave device can only be connected to one master. Based on the different states, link layer in BLE stack is classified into below sates.

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