Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Bluetooth low energy (BLE) is a feature of Bluetooth 4.0 wireless radio technology, aimed at new, principally low-power and low-latency, applications for wireless devices within a short range (10 meters / 30 ft). This facilitates a wide range of applications and smaller form factor devices in the healthcare, fitness, security and home entertainment industries. Devices using Bluetooth low energy wireless technology are expected to consume a fraction of the power of classic Bluetooth enabled products. In many cases, products will be able to operate more than a year on a button cell battery without recharging. It will be possible to have sensors such as thermometers operating continuously, communicating with other devices like a mobile phone. This may increase the concerns for privacy, as when the remote, low power, continuously on, sensor would be presence sensors or similar devices.

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