Experiences and Measurements with Bluetooth Low Energy (BLE) Enabled and Smartphone Controlled Embedded Applications

Since its early beginnings in 1999, the Bluetooth standard is known for its good stability, its real-time characteristics, and its low power consumption in active mode. Bluetooth Low Energy extends the Bluetooth standard in version 4.0 for ultra-low energy applications through the extensive usage of low-power sleeping periods, which inherently difficult in frequency hopping technologies. This paper gives an introduction into the specifics of the Bluetooth low energy protocol, shows a sample implementation, where an embedded device is controlled by an Android Smartphone, and shows the results of timing and current consumption measurements.

Provided by: Engineering and Technology Publishing Topic: Hardware Date Added: Aug 2014 Format: PDF

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