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What is Classic Bluetooth BR/EDR?

Last Updated on：2024-12-12 07:32:35

Classic Bluetooth, also known as BR/EDR (Basic Rate/Enhanced Data Rate), refers to traditional Bluetooth technology used for establishing wireless personal area networks (WPAN) and data communication. This technology supports voice and data transmission and is widely used in mobile phones, headsets, car audio systems, computers, and their peripherals. The main features of BR/EDR Bluetooth include:

Basic Rate (BR): It provides a maximum data transfer rate of 1 Mbps and is primarily used for voice transmission and lower-rate data communication.
Enhanced Data Rate (EDR): Introduced in Bluetooth version 2.0, EDR can provide data transfer rates of up to 2 Mbps or 3 Mbps through improved modulation methods.
Connectivity: Classic Bluetooth establishes continuous, reliable connections suitable for applications with continuous data streams, such as audio streaming and file transfer.
Power Consumption: Compared to Bluetooth Low Energy (BLE), Classic Bluetooth has higher power consumption, making it more suitable for short-term but high-bandwidth communication.
Compatibility: Since Classic Bluetooth technology has been around for many years, it has widespread support and compatibility in the market.

Classic Bluetooth and BLE (Bluetooth Low Energy) are two different protocol stacks in the Bluetooth technology specification. Although they share the same radio hardware, their design goals and application scenarios differ. Classic Bluetooth is more suitable for applications requiring continuous data streams, while BLE focuses more on providing low-power periodic data transmission. With the development of Bluetooth technology, many devices now support both Bluetooth modes to meet different application needs.