RF-STAR Bluetooth modules with nRF52811 provide fast BLE for communication between customer products and smart mobile devices solution

PublishTime： 2021-12-10 Article Source：RF-STAR

Nordic nRF52811 SOC inherits the successful foundation of Nordic nrf52 Series platform, and can bring more rich connection performance for applications adopting advanced wireless Internet of things functions (such as Bluetooth 5.1 direction finding, thread and ZigBee).

This SOC device combines Nordic's entry-level nrf52810 SOC's low-cost features with mainstream nrf52832 and high-end nrf52840 SOC's multi protocol support capabilities. nRF52811 is also the first Nordic low-power wireless connection product in the product family to support Bluetooth 5.1, adding direction finding function for Bluetooth 5 with high throughput, long distance and enhanced coexistence function.nRF52811 SOC can realize the latest and most powerful functions of Bluetooth 5.1, the most prominent is the direction finding function, which pushes the Bluetooth positioning to a new height. nRF52811 chip provides strong basic support for RF-Star Bluetooth positioning scheme.

nRF52811 SOC's Bluetooth 5.1 direction finding function makes the positioning solution not only rely on the received signal strength value (RSSI), but also based on the actual direction of the signal, which significantly improves the positioning accuracy and opens up a new application space. There are two methods to determine the direction of the signal: one is to calculate the angle of arrival (AOA) of the received signal, the other is to calculate the angle of departure (AOD) of the transmitted signal. The DF function can be used in two-dimensional or three-dimensional space, which depends on the selected design complexity and antenna array. nRF52811 SOC with built-in Bluetooth 5.1 hardware function is the ideal transceiver choice for AOA or AOD application scenarios.

The RF-STAR Bluetooth modules can be used to develop consumer electronic products based on Bluetooth 4.0/4.2/5 (BLE low energy Bluetooth) /5.1 (indoor positioning), mobile peripheral products, etc., to provide fast BLE for communication between customer products and smart mobile devices solution.

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