Integration Manual

ANNA-B4 series - System integration manual
UBX-21000517 - R03 Contents Page 6 of 76
C1-Public
1 Functional description
1.1 Overview
The ANNA-B4 series are small, stand-alone Bluetooth 5.1 Low Energy (LE) wireless module that are
particularly suited for harsh professional environments.
Based on the Nordic Semiconductor nRF52833 chip that includes an integrated RF core and powerful
Arm® Cortex®-M4 with FPU processor, ANNA-B4 operates in all Bluetooth 5.1 modes – as well as
802.15.4 (Thread and Zigbee) and Nordic proprietary modes (ANNA-B402 only).
Featuring Angle of Arrival (AoA) and Angle of Departure (AoD) transceivers, ANNA-B402 supports the
Bluetooth 5.1 Direction Finding service. The service can for example be used for indoor positioning,
wayfinding, and asset tracking.
ANNA-B4 modules need only a single supply voltage in the range of 1.7–3.6 V and, as the supply voltage
level can also be used as the I/O reference level, can be easily integrated into simple, single voltage rail
systems. The broad supply voltage range makes ANNA-B4 particularly useful in battery powered
systems. To use the USB interface VBUS 5 V supply is required.
With the same physical size and mechanical design as the ANNA-B112 module, ANNA-B4 offers a
natural upgrade path for existing ANNA-B1 applications. Four additional pins on ANNA-B4, included
to increase the number of supported GPIOs module, can be conveniently accommodated within a
common module footprint. ANNA-B4 also extends the operating temperature range to +105 °C,
beyond the +85 °C specified for ANNA-B1.
Table 1 describes the various models in the ANNA-B4 series.
Model
Description
ANNA-B402
ANNA-B4 open CPU module, that enables customer applications to run on the built-in Arm®
Cortex®-M4 with FPU. Equipped with an integrated chip antenna but can also be used with an
external antenna via the antenna pin.
ANNA-B412
ANNA-B4 module with pre-flashed u-connectXpress software application. Equipped with an
integrated chip antenna but can also be used with an external antenna via the antenna pin.
Table 1: ANNA-B4 series models
See also the ANNA-B402 and ANNA-B412 data sheets [5] [6] and ANNA-B402 and ANNA-B412 product
summaries [3] [4].
1.2 Example applications
The ANNA-B4 modules are applicable for a wide range of different applications:
• Industrial automation
• Smart buildings and cities
• Low power sensors
• Wireless-connected and configurable equipment
• Point-of-sales
• Health devices
• Real-time Location, RTLS
• Indoor positioning
• Asset tracking
• Wearables