Bluetooth Low Energy, as the basis of data transmission with ultra-low energy consumption

Abstract

The article describes Bluetooth Low Energy as the basis for data transmission with ultra-low energy consumption. The areas of application of the technology are described in detail. It is emphasized that in BLE, communication between devices can take place according to two main patterns of channel-level interaction: two devices can act either as a broadcaster and a scanner, when the broadcaster unidirectionally transmits data that can be received by the scanner; or as host and host, while a connection is established between the devices, and they can exchange data in two directions. It is emphasized that the Bluetooth Low Energy specification allows you to flexibly configure arbitrary data collection modes, taking into account the required speed of their collection and the desired level of energy saving. The levels of implementation of Bluetooth Low Energy are graphically presented, the advantages of the technology and its disadvantages are suggested. At the same time, it was emphasized that electricity consumption can vary widely. It depends on the device implementation, various protocol parameters and chipset. The typical consumption of a BLE transceiver during data transmission usually does not exceed 15 mA. It is noted that Bluetooth Low Energy is designed to transmit data over a low-bandwidth channel, and using Bluetooth Low Energy for applications with a large volume of frequently transmitted data significantly increases power consumption and negates the main advantage of BLE. Thus, it is emphasized that minimizing the use of radio communication as much as possible allows to achieve the minimum level of energy consumption. The BlueNRG-LP controller is described, which is recommended for Bluetooth Low Energy technology, as a result of its use - high performance with extremely low consumption. The hardware features of BlueNRG-LP are emphasized, which provide advanced hardware support for security