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

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The milestone came with bluetooth 5.0, which doubled the speed, extended the range up to 300 metros, and increased broadcast capacity eightfold. Later versions such as bluetooth 5.1 y 5.2 added precise location features and enhanced audio support through EL AUDIO.

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