Classic Bluetooth
Classic Bluetooth is a wireless communication standard for short-range data exchange between devices, operating in the 2.4 GHz ISM band. It enables point-to-point and point-to-multipoint connections for applications like audio streaming, file transfer, and peripheral connectivity. It is defined by the Bluetooth Special Interest Group (SIG) and has evolved through versions like Bluetooth 1.x to 3.0, with data rates up to 3 Mbps.
Developers should learn Classic Bluetooth for building applications that require reliable, low-power wireless communication over short distances, such as connecting headphones, keyboards, or IoT sensors. It is essential in scenarios where audio streaming (e.g., A2DP profile) or data transfer (e.g., FTP profile) is needed, and it remains relevant for legacy device support and industrial applications. Use it when Bluetooth Low Energy (BLE) is insufficient for higher bandwidth needs.