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Reference Design for Bluetooth Smart Beacons

Published: Apr 09,2014

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Ultra low power (ULP) RF specialist Nordic Semiconductor ASA announces the release of a reference design for Bluetooth Smart beacons based on Nordic's nRF51822 multiprotocol Bluetooth Smart and proprietary 2.4GHz System-on-Chip (SoC).

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Bluetooth Smart beacons are low-cost, low-power Bluetooth low energy wireless transmitters that can advertise their location to Bluetooth Smart Ready smartphones in close proximity.

The nRF51822 Beacon Kit allows developers and engineers to develop their own beacon applications using Apple’s iBeacon standards, or create their own beacons based on their own specifications using Bluetooth Smart. This kit is an ideal starting point for OEMs and ODMs to begin development of beacon hardware to be used together with associated back-end services that they will typically offer as complete beacon solutions to their customers.

The kit works straight out of the box with companion smartphone apps for iOS and Android (4.1/4.3) smartphones. The firmware is available as source code from Nordic and allows example beacon scenarios to be set up quickly and easily to test out product ideas. This kit leverages the ability of the nRF51822 SoC to support full Over-The-Air Device Firmware Upgrade (OTA-DFU) enabling all beacon firmware to be updated in-situ in a transparent manner.

The Android and iOS apps have a use-case scenario based around paintings in an art gallery. The content of these apps is very quickly and easily modified and added to, so as to create as rich and populated a user environment as desired. The example scenario is easily tailored to whatever the particular application may be, for example retail and public information. By adding contextual files (for example text and images) to the smartphone app a realistic use-case example can be created.

The nRF51822 Beacon Kit employs Nordic-developed hardware, firmware, and software and supports both iOS 7 and Android (4.3/4.1) operating systems. As each brand and model of smartphone exhibits different RSSI levels the nRF51822 Beacon Kit has a tuning function that allows consistent performance regardless of phone model.

“Beacons represent a use case that has an immediate draw to the commercial world,” comments Thomas Embla Bonnerud, Nordic Semiconductor's Director of Product Management.

“Nordic Semiconductor has always led the field in cutting-edge application support for developers with ultra low power wireless. With the nRF51822 Beacon kit we are continuing that track record for Bluetooth Smart beacons.”

The nRF51822 Bluetooth Smart Beacon Kit includes one beacon and full access to software and design files. It is available from April 8 and will retail for $29.95. Contact Nordic Semiconductor for more information.

Features:

- Ultra small form factor beacon (20mm diameter)

- Powered by CR1632 coin cell battery

- iOS App

- Android App

- Source code for beacon firmware and smart phone apps

- Support Over-The-Air Device Firmware Upgrade (OTA-DFU)

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