Since its invention by Ericsson in 1994, Bluetooth has transformed the way devices communicate wirelessly. Early versions like 蓝牙 1.0 和 1.1 introduced basic wireless connectivity, while 蓝牙 2.0 + EDR enabled faster data rates and better audio transmission. 跟 蓝牙 3.0 + HS, high-speed data became possible, 和 蓝牙 4.0 marked the arrival of 蓝牙低能 (BLE) for power-sensitive IoT devices.

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The milestone came with 蓝牙 5.0, which doubled the speed, extended the range up to 300 仪表, and increased broadcast capacity eightfold. Later versions such as 蓝牙 5.1 和 5.2 added precise location features and enhanced audio support through LE Audio.

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Modern Bluetooth radio modules are built on these advancements, supporting both Classic Bluetooth (for audio streaming and voice) and BLE (for low-energy IoT applications). Their evolution ensures broader compatibility, stronger performance, and more diverse use cases across industries.