Since its invention by Ericsson in 1994, Bluetooth has transformed the way devices communicate wirelessly. Early versions like ブルートゥース 1.0 そして 1.1 introduced basic wireless connectivity, while ブルートゥース 2.0 + edr enabled faster data rates and better audio transmission. と ブルートゥース 3.0 + HS, high-speed data became possible, そして ブルートゥース 4.0 marked the arrival of Bluetooth低エネルギー (ble) for power-sensitive IoT devices.

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The milestone came with ブルートゥース 5.0, which doubled the speed, extended the range up to 300 メーター, and increased broadcast capacity eightfold. Later versions such as ブルートゥース 5.1 そして 5.2 added precise location features and enhanced audio support through LE Audio.

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Modern Bluetooth 無線モジュール 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.