Bluetooth Low Energy (BLE) is a wireless technology that enables short-range communication between two devices. It is designed to provide lower power consumption and cost while maintaining a similar communication range to that of Bluetooth Classic. BLE is mainly used for short-range communication between two devices, such as a fitness tracker and a mobile phone, or a beacon and a mobile phone. An example of BLE in action would be a fitness tracker that uses BLE to track the user’s activity and transmit the data to a mobile app for display.

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