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5
C209 tag
The C209 is a tag based on the NINA-B406 Bluetooth LE module. C209 tags are delivered with
bootloader software only and do not include the tag software. Please see
software. The tag runs tag software that sends Bluetooth 5.1 advertisement messages to the ANT-
B10 antenna board, which determine the direction of the tag using the u-connectLocate software.
☞
C209 is an example implementation of a tag, which is not optimized nor available as a separate
product.
5.1 Overview
The C209 provides a versatile beacon example that is suitable for use as an AoA tag. It is advisable to
test ANT-B10 boards together with C209 tags and u-blox C209 tag software [12].
Figure 22: C209 tag in open plastic enclosure
C209 tags are based on the open CPU NINA-B406 module variant. C209 tags run on custom tag
software that advertises an Eddystone beacon using extended advertising and periodic advertising
with a Constant Tone Extension added to the periodic advertising packets. This CTE is used by the
u-connectLocate direction finding software that runs on the antenna application board and calculates
the Angle of Arrival.
The namespace included in the transmitted Eddystone-UID beacon is
the instance ID is based on the MAC address of the NINA-B406 found on the module QR code label.
C209 tags are powered by a single CR2032 battery (
C209 tags include several sensors for use in a multitude of different applications. The on-board
sensors include:
• LIS2DW12 accelerometer
• APDS-9306 ambient light sensor
• BME280 humidity, pressure, and temperature sensor
UBX-22006906 - R07
C1-Public
not included
) or through the USB connector.
C209 tag
XPLR-AOA-3 - User guide
5.2
on how to flash tag
0x4E494E412D4234544147
Page 23 of 46
and
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