You can think of it like the OSI model in networks, where each layer has a specific job. Bluetooth has several protocol layers which form a stack. Probably, this is the first term you will read in most resources. So let’s demonstrate the most important terminologies. However, “Bluetooth Smart Ready” refers to dual-mode device, and “Bluetooth Smart” refers to BLE single-mode device.īluetooth documentation uses a lot of terminologies, this tutorial intends to keep things simple and practical. Single-mode devices support only BLE, while dual-mode ones can operate in BLE or Classic Bluetooth protocol. ![]() The Bluetooth 4.0 specification permits either or both of single-mode and dual-mode devices. So starting from version 4.0 back in 2010, Bluetooth has three protocols: Classic Bluetooth, Bluetooth high speed and Bluetooth Low Energy (BLE). ![]() Bluetooth has announced in Bluetooth Version 4.0 a new protocol called Bluetooth Low Energy (BLE) targeting mainly IoT devices powered from very low capacity batteries. Bluetooth has evolved over the years to meet the new requirements of the technology market. Back in 2001, Sony Ericsson T36 mobile phone was the first mobile phone with built-in bluetooth connectivity. Bluetooth is quite known wireless protocol used intensively in mobile phones industry.
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