Ublox XPLR-AOA-3 User manual

UBX-22006906 - R07
C1-Public www.u-blox.com
XPLR-AOA-3
Evaluation kit for ANT-B10 antenna boards
User guide
0
0
3
Abstract
Comprising an ANT-B10 antenna board, EVB-ANT-1 development platform, and C209 tag, the
XPLR-AOA-3 explorer kit provides a complete Angle of Arrival anchor point –and all you need for
developing direction-finding and indoor positioning applications.
This document describes the operation and assembly of the kit components and explains the
procedures for loading the necessary software. It also includes a Quick start guide to get the XPLR-
AOA-3 up and running as quickly as possible.

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Document information
Title
XPLR-AOA-3
Subtitle
Evaluation kit for ANT-B10 antenna boards
Document type
User guide
Document number
UBX-22006906
Revision and date
R07
17-Nov-2023
Disclosure restriction
C1-Public
This document applies to the following products:
Product name
Ordering code
XPLR-AOA-3
XPLR-AOA-3-01
☞ANT-B10 antenna board hosts the NINA-B411-40B, which is a special NINA-B411 variant,
standalone Bluetooth module running the u-connectLocate software that supports the u-blox
angle-of-arrival (AoA) algorithm.
u- blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, or modification of this document or any part thereof is only permitted with the express
written permission of u-blox. Disclosure to third parties is permitted for clearly public documents only.
The information contained herein is provided “as is”. No warranty of any kind, either express or implied, is made in relation to
the accuracy, reliability, fitness for a particular purpose or content of this document. This document may be revised by u-blox
at any time. For most recent documents, please visit www.u-blox.com.
Copyright © u-blox AG.

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Contents
Document information................................................................................................................................2
Contents ..........................................................................................................................................................3
1Quick start guide....................................................................................................................................5
2Product description ..............................................................................................................................6
2.1 Kit includes ................................................................................................................................................... 6
2.2 Assembling the kit......................................................................................................................................7
3ANT-B10 ...................................................................................................................................................8
3.1 Flashing using s-center .............................................................................................................................9
3.2 Flashing from the Command line ..........................................................................................................10
3.3 ANT-B10 configuration and testing......................................................................................................10
3.4 Connecting to a PC ...................................................................................................................................12
3.4.1 Overview .............................................................................................................................................12
3.4.2 Pin description for UART connection ...........................................................................................13
3.4.3 Suggested accessories ...................................................................................................................13
4EVB-ANT-1............................................................................................................................................ 14
4.1 Introduction................................................................................................................................................15
4.2 EVB-ANT-1 overview ................................................................................................................................15
4.3 Main EVB-ANT-1 use cases ....................................................................................................................16
4.3.1 Anchor point ......................................................................................................................................16
4.3.2 Custom antenna support................................................................................................................16
4.4 UART connections to board....................................................................................................................18
4.5 EVB-ANT-1 software................................................................................................................................19
4.5.1 Default software ...............................................................................................................................19
4.5.2 Flashing ..............................................................................................................................................19
4.5.3 Web configuration interface ..........................................................................................................19
4.5.4 SW Reset............................................................................................................................................20
4.6 Boot options ...............................................................................................................................................20
4.7 Powering options.......................................................................................................................................21
4.8 Mechanical specifications.......................................................................................................................21
4.9 Notes ...........................................................................................................................................................22
4.9.1 Hardware and software revisions..................................................................................................22
4.9.2 Limitations and known issues .......................................................................................................22
5C209 tag ................................................................................................................................................ 23
5.1 Overview......................................................................................................................................................23
5.2 C209 Software and flashing ...................................................................................................................25
5.2.1 Installing tag software with the DFU bootloader using s-center............................................25
5.2.2 Installing tag software on the command line with the DFU bootloader................................26
5.2.3 Installing tag software using a debugger ....................................................................................27
5.3 Configuration and handling ....................................................................................................................27
5.3.1 Configuring advertising interval ....................................................................................................27

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5.3.2 Enabling/disabling advertising ......................................................................................................28
5.3.3 Restore Eddystone Instance ID .....................................................................................................28
6u-connectLocate software .............................................................................................................. 29
6.1 Configuration example.............................................................................................................................30
Appendix ....................................................................................................................................................... 31
AGlossary ................................................................................................................................................. 31
BC209 schematics ................................................................................................................................ 32
CEVB-ANT-1 schematics.................................................................................................................... 33
Related documentation ........................................................................................................................... 45
Revision history.......................................................................................................................................... 46
Contact.......................................................................................................................................................... 46

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1Quick start guide
Install s-center evaluation software
s-center is a powerful and easy-to-use tool for evaluating, configuring, and testing u-blox short range
modules. Running on Windows 10 operating systems, the software allows end users to configure and
assess the performance of u-blox short range modules.
Use the following procedure to download and install the s-center software and documentation. The
software can be downloaded from the u-blox s-center product page and is available free of charge.
1. Download the latest s-center software to your computer.
2. Open the s-center setup installer to install the software.
3. Select Launch button in the installer or open the application from the Windows Start button.
Install the serial port drivers
EVB-ANT-1 includes a mounted FTDI chip that provides the serial port connectivity. The driver for the
UART is normally installed automatically when the board is connected to the PC. If the driver does not
start automatically, the driver files can be retrieved from the manufacturer’s web site at
https://ftdichip.com/.
Connect the ANT-B10 board
Connect the ANT-B10 board to the EVB-ANT-1 board. Physically align the boards and gently plug the
20-pin, male and female header connectors together. See also Assembling the kit.
Install u-connectLocate software on the ANT-B10
u-connectLocate is continuously improved with performance and quality enhancements and it is
strongly recommended to always use the latest available version of the u-connectLocate software.
See also Flashing using s-center.
Install host software on the EVB-ANT-1
See EVB-ANT-1 .
Install tag software
See C209 Software and flashing.
Test the system
See ANT-B10 configuration and testing for a description of setup and running of the system with the
ANT-B10 connected directly to the PC, or EVB-ANT-1 software for a description on how to send the
anchor events to a positioning engine over an ethernet or Wi-Fi network.

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2Product description
Comprising an ANT-B10 antenna board, EVB-ANT-1 development platform and C209 tag, the
XPLR-AOA-3 explorer kit provides a complete Angle of Arrival anchor point –and all you need for
developing direction-finding and indoor positioning applications.
The antenna board runs the u-blox developed u-connectLocate software, while the development
board runs an open-source demonstration software that relays angle events from the antenna board.
The C209 tag runs example, open-source, tag software. All the cables and adapters that are
necessary for mechanically connecting the boards are also included in the kit.
An off-the-shelf pin header on EVB-ANT-1 allows easy connection to ANT-B10. For an overview of the
EVB-ANT-1 board and external connections, see also EVB-ANT-1 overview.
☞The ANT-B11 antenna board [22] features an identical pin header to that used on ANT-B10.
Consequently, all information referencing ANT-B10 in this document is also applicable for
ANT-B11.
Figure 1 shows the main components of the XPLR-AOA-3 kit with mounted ANT-B10 (left), ANT-B10
antenna board (center), and C209 tag (right).
Figure 1: Complete XLPR-AOA-3 kit - showing the EVB-ANT-1 application board (front left), ANT-B10 antenna board (back
left) and C209 tag (right)
☞For information about using the XPLR-AOA-3 kit for indoor positioning and the positioning
engine client software for Windows, see also the Bluetooth indoor positioning guide [21].
For general information about Bluetooth direction finding, watch the u-blox webinars [2] and study
the Bluetooth SIG technical overview [3].
2.1 Kit includes
•EVB-ANT-1 board
•ANT-B10 antenna board (hosting the NINA-B411 Bluetooth Low Energy module)
•C209 tag (hosting the NINA-B406 Bluetooth Low Energy module)
•Mounting materials. For mounting instructions, see Assembling the kit.
oSingle plexiglass mounting panel
oFour 30 mm M3 standoffs
oFour 8 mm M3 standoffs
oFour M3x6 screws

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2.2 Assembling the kit
1. Connect to the ANT-B10 board to the EVB-ANT-1 board. Physically align the boards and gently
plug the 20-pin, male and female, header connectors together. Figure 2 shows the location of the
header connectors on each board.
Figure 2: Assembled XPLR-AOA-3 kit showing EVB-ANT-1 and ANT-1 headers
2. Using the supplied standoffs and screws, assemble the two PCBs to the plexiglass, as shown in
Figure 3. The assembly order of the components (see Kit includes) are as follows:
a. Plexiglass
b. M3 30 mm standoff
c. EVB-ANT-1 PCB (connector side up)
d. M3 8mm standoff
e. ANT-B10 PCB with connector side down, fix the connectors together
f. M3x6 screw
Figure 3: ANT-B10 and EVB-ANT-1 with plexiglass enclosure
☞The plexiglass has a 3/8” UNC thread available in the middle of the panel. This can be used to
connect tripods or via an adapter set use ¼” camera clamps or tripods. It can also be used to
mount the anchor node to a wall or ceiling.
⚠The EVB-ANT-1 PCB is electrostatically sensitive and should not be handled without proper
precautions.

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3ANT-B10
The ANT-B10 antenna board provides a versatile Bluetooth® direction finding board equipped with
eight, dual-polarized, patch antennas for direction finding, as shown in Figure 4 and Figure 5.
Figure 4: ANT-B10 board –top view showing antennas, traces, and mounting holes
Figure 5: ANT-B10 - bottom view showing NINA-B411 module, switch, and header
The ANT-B10 antenna board hosts a single NINA-B411 Bluetooth Low Energy (LE) module, which
controls the antennas and applies an angle calculation algorithm to the received signals to compute
the tag angles. The angles are calculated by the u-connectLocate software running on the embedded
Microcontroller Unit (MCU) in the module. The angles are delivered over the UART port of the
ANT-B10. Future u-connectLocate software releases are planned to support USB and SPI interfaces.

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For more information about ANT-B10, see the ANT-B10 data sheet [1] and ANT-B10 system
integration manual [17].
3.1 Flashing using s-center
u-connectLocate software is continuously improved with performance and quality enhancements.
The antenna board comes pre-flashed with the software, but updating to the latest available version
is strongly recommended.
☞Flashing u-connectLocate software over the UART interface requires s-center 6.1 or later.
☞To flash the software, you can access the UART on ANT-B10 via the EVB-ANT-1 board when
the kit is fully assembled. Alternatively, you can connect the pin header directly to a PC. See
also UART connections to board and Connecting to a PC.
To flash the software over the UART interface using s-center [7]:
1. Download the u-connectLocate software container from the u-connectLocate product page [4].
2. Open s-center on the correct COM port once the module is in software download mode.
3. Select Software Update.
4. In the “Software Update” dialog select the binary file in the software container, as shown in
Figure 6. Make sure the flashing speed is set to 115200.
5. Select Update.
Figure 6: Updating the software on the board using s-center

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3.2 Flashing from the Command line
To flash the software over the UART interface from the Command line:
1. Download the u-connectLocate software container from the u-connectLocate product page [4].
2. Put the device into firmware update mode; either:
a. Enter the AT+UFWUPD command [11] to select the appropriate baud rate. The following
command sets the baud rate to 1Mbit/s.
AT+UFWUPD=0,1000000
b. Boot the board into Software Update mode by connecting the SWITCH_2 pin to ground
while powering up the board. This sets the default baud rate to 115200.
3. Flash the u-connectLocate software using the bundled (Windows only) newtmgr executable.
Alternatively, follow the Newt Manager Guide [6] to install the newtmgr application tool for MAC
OS, Linux, and Windows.
4. Use newtmgr to install u-connectLocate software on the NINA-B411 module:
newtmgr --conntype=serial --connstring="COMXX,baud=XXX,mtu=512" image upload <binary
image>
5. Press the reset button to reset the application board or reset it with newtmgr:
newtmgr --conntype=serial --connstring="COMXX,baud=XXX" reset
☞Replace COMXX with your actual port number, baud=XXX, to either the default baud rate of 115200
or your chosen baud rate.
3.3 ANT-B10 configuration and testing
A green LED light indicates that the board is powered on.
Having connected the COM port, the board is ready to receive AT commands. For information about
the AT commands to use for configuring direction finding, see the u-connectLocate AT commands
manual [18].
s-center supports specific direction-finding AT commands in the Angle of Arrival tab, as shown in
Figure 8. The COM port can also be used with a terminal emulator to type in AT commands.
Once the system is setup, each anchor reports angle calculation events (+UUDF) over the serial port
connection. When ANT-B10 detects a beacon it reports events like this:
+UUDF:CCF9578E0D8A,-42,20,0,0,37,”CCF9578E0D89”,””,15869,23
+UUDF:CCF9578E0D8B,-41,10,4,0,38,”CCF9578E0D89”,””,15892,24
+UUDF:CCF9578E0D8A,-42,-10,2,0,39,”CCF9578E0D89”,””,15921,25
…
The data reported in these events can be used to estimate a position of the tracked beacon. The
parameters of the +UUDF event are (from left to right):
•Eddystone instance ID
•RSSI of 1st polarization
•Angle 1
•Angle 2
•Reserved
•Detected channel
•Anchor ID as set by AT+UDFCFG tag 4.
•User defined strings as set by AT+UDFCFG tag 2.
•Timestamp
•Periodic advertising sequence number
In the events reported above, the beacon is moving from one side of the anchor to the other as angle1,
which is given as the third parameter in the event (shown in bold).

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The beacon moves from a positive value (20) to a negative value (-10). The movement of the tag for
these events is shown in Figure 7.
Figure 7: Tag movement
☞The optimal distance between anchor nodes and tags is approximately 2–15 m.
☞A slight degradation in the accuracy of the reported angle can be expected close to the outer limits
of the angle range. To maximize accuracy, the anchor should normally point to the center of the
area of interest.
For information describing how the u-connectLocate algorithm calculates the direction or angles of
moving tags, see u-connectLocate software.
Angle events can also be visualized in the s-center [7] using the “IoT > Angle of Arrival”tab, as shown
in Figure 8.
Figure 8: s-center with Angle of Arrival tab

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☞By default, the “Print UUDF events on console”check box is deselected. This means that +UUDF
angle events are not printed on the console.
3.4 Connecting to a PC
3.4.1 Overview
A host PC can communicate directly with ANT-B10 over UART interface (TX, RX, CTS, RTS) through
EVB-ANT-1. The pin-headers connecting the two boards together is physically located in the center
of each board. See also Assembling the kit.
To test ANT-B10 as a standalone unit independently of EVB-ANT-1, the host PC can also attach to
the UART interface through an expansion board fitted to the underside of the antenna board.
Attaching a USB-to-TTL serial adapter to the expansion board with an adjoining cable harness allows
convenient access and control of the UART interface from the PC through the ANT-B10 header.
Figure 9 shows the USB adapter attached to ANT-B10 through the standard 1.27 mm pin header.
Figure 9: ANT-B10 with UART to USB serial converter
☞As ANT-B10 is powered by the USB-to-Serial Adapter there is no need for external power
supply.
To connect ANT-B10 to the host PC:
1. Plug in the USB-to-Serial adapter
2. Open the Windows Device Manager to identify the COM port number of the board.
3. Use s-center [7] or your preferred terminal emulator to establish the serial connection to the COM
port.
4. Connect the COM port to the s-center tool [7] or the terminal emulator with the following port
settings:
•115200 kbps
•8 data bits, no parity, 1 stop bit (8N1)
•Flow control enabled using RTS/CTS

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3.4.2 Pin description for UART connection
Using the cable harness, connect the following pins from the ANT-B10 header to USB-to-Serial
adapter:
•UART_TXD (pin 16)
•UART_RXD (pin 18)
•UART_CTS (pin 14) –optional for UART flow control
•UART_RTS (pin 12) –optional for UART flow control
•GND (pin 15 or 17)
•+3V3 (pin 2)
☞If flow control is not used the UART_CTS pin is internally pulled down, but it is good practice to
connect UART_CTS to GND.
Figure 10 shows the pin positions on the ANT-B10 connector.
Figure 10: ANT-B10 connector pin assignment (top view)
3.4.3 Suggested accessories
Figure 11 shows (from left to right) the components needed to connect ANT-B10 directly to the
host PC.
•USB adapter cable with male USB Type-A connector to male mini-B connector
•FTDI FT232RL USB-to-TTL Serial Converter Adapter Module 5 V and 3.3 V for Arduino
•Female-to-female jumper set
•Dual-row, 1.27 mm pitch, 20-pin, female adapter (to avoid pin damage on the ANT-B10 board)
Figure 11: Components required for PC connection

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4EVB-ANT-1
The EVB-ANT-1 application board offers developers a quick and easy way to evaluate the ANT-B10
and ANT-B11 antenna boards. It features the NXP i.MX RT1062 Microcontroller Unit (MCU) for
configuring and developing direction finding applications, as well as an Ethernet PHY chip and u-blox
MAYA-W1 Wi-Fi module.
Figure 12 shows the modules, jumpers, and connectors on the board that are referenced throughout
this document.
J7:
Custom antenna header
SW3:
Boot options (Internal boot/serial downloader)
SW2:
Antenna board connector button (SWITCH1)
SW5:
MCU (NXP i.MX RT1062) user button/reset
SW4:
Antenna board connector button (SWITCH2)
SW6:
System reset
SW1:
Antenna board connector button (RESET)
SW7:
MCU (NXP i.MX RT1062) MCU reset
J11:
Select NINA UART on-board EVB (remove)
J13:
USB type C
J12:
Select NINA UART on ANT-B1 host (remove)
J15:
USB type C
J6:
Barrel jack power connector (auxiliary jack,
DC 9-57V)
T1:
RJ45 Ethernet connector (PoE)
Figure 12: EVB-ANT-1 board showing mounted plexiglass base enclosure, modules, jumpers, and connectors

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4.1 Introduction
EVB-ANT-1 is a versatile application board for evaluating a system setup, using the ANT-B10 antenna
board [1] or other antenna boards.
The EVB-ANT-1 application board can be used as:
•an anchor point passing raw or processed angle events from the antenna board to a server.
See also Anchor point.
•a host board for evaluating other antenna boards,. See also Custom antenna support.
•a positioning engine server
•a preprocessor applying filtering or other reformatting of the angle events from the antenna board
before passing them on to the network
EVB-ANT-1 has a connector and mechanical dimensions that make it suitable for mounting an
ANT-B1x-board. The board is protected with an enclosed plexiglass, as shown in Figure 2.
4.2 EVB-ANT-1 overview
Figure 13 EVB-ANT-1 block diagram
The main components of the EVB-ANT-1 include:
•MAYA-W1 Wi-Fi module for Wi-Fi and Bluetooth connectivity
•Arm® Cortex®-M7 Core MCU (NXP i.MX RT1060 family)
•Ethernet controller for ethernet connectivity
•Power over Ethernet (PoE) controller for powering the board using an Ethernet cable
•NINA-B411 Bluetooth module running u-connectLocate software for evaluating external antenna
boards
•Quad UART-to-USB converter providing access to the serial interfaces of the MCU, ANT-B10, and
the onboard NINA-B4 module
Ethernet
MCU
SDIO
MAYA-W1
UART
UART
SPI
GPIO
NINA-B4
GPIO
RF
UART
SPI
GPIO
FTDI
USB
UART
USB
ANT-B1x
connector
Custom
antenna
board
FTDI USB
connector
ANT-B1x
USB
connector
Ethernet
connector
(PoE+)
Power
controller
DC power
connector
Wi-Fi
Bluetooth
EVB-ANT-1

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4.3 Main EVB-ANT-1 use cases
4.3.1 Anchor point
In this use case, the EVB-ANT-1 primarily supports ANT-B family antenna boards and routes direction
finding data to a position engine. For this purpose, the microcontroller must communicate with the
ANT-B family antenna board Bluetooth module using UART (or SPI) through the ANT-B family
connector. Direction finding data is then forwarded through the chosen communication interface –
either Ethernet or Wi-Fi using the MAYA-W1 module.
The highlighted areas in Figure 14 show the EVB-ANT-1 components involved in this use case.
Figure 14: EVB-ANT-1 components involved in the anchor point use case
4.3.2 Custom antenna support
EVB-ANT-1 also supports custom antenna boards that contain an antenna array and an RF switch.
To support the use case, an onboard NINA-B411 Bluetooth module can connect to a custom antenna
board through a 2.54 mm pitch connector. The module includes the power, the RF switch control
signals, and the U.FL connector for the RF signals. The MCU connects to the onboard NINA-B411
through the UART or SPI (pending software support), and GPIOs. Direction finding data can be
communicated to a host through the chosen communication interface –either Ethernet or Wi-Fi using
the MAYA-W1 module.
Ethernet
MCU
SDIO
MAYA-W1
UART
UART
SPI
GPIO
NINA-B4
GPIO
RF
UART
SPI
GPIO
FTDI
USB
UART
USB
ANT-B1x
connector
Custom
antenna
board
FTDI USB
connector
ANT-B1x
USB
connector
Ethernet
connector
(PoE+)
Power
controller
DC power
connector
Wi-Fi
Bluetooth
EVB-ANT-1

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The highlighted areas in Figure 15 show the EVB-ANT-1 components involved in this use case.
Figure 15: EVB-ANT-1 components involved in antenna evaluation
High speed GPIOs from the onboard NINA-B411 module are broken out to a 20 pin (2x10), 2.54 mm
pitch header along with 5 V and 3.3 V power supplies. These GPIOs can be used to drive RF switches
that facilitate custom switching of the antenna array. The connector pinout is shown in Figure 16.
Table 1 shows the available signals on the antenna header. These signals are the same as those used
on the NINA-B411 hosted on ANT-B family antenna board. Access to these pins from the header pin
make it easier to test custom antenna boards.
NINA-B4 pin
Pin name
Header pin
Note
IO 47
SWITCH_D0
4
High speed GPIO
IO 48
SWITCH_D1
8
IO 49
SWITCH_D2
12
IO 50
SWITCH_D3
16
IO 51
SWITCH_D4
18
IO 52
SWITCH_EN
12
IO 44
GPIO1
3
General purpose I/O
IO 46
GPIO2
7
General purpose I/O
IO 45
GPIO3
11
General purpose I/O
Table 1: Pins on the NINA-B411 connected to the custom antenna header
Ethernet
MCU
SDIO
MAYA-W1
UART
UART
SPI
GPIO
NINA-B4
GPIO
RF
UART
SPI
GPIO
FTDI
USB
UART
USB
ANT-B1x
connector
Custom
Antenna
Board
FTDI USB
connector
ANT-B1x
USB
connector
Ethernet
connector
(PoE+)
Power
controller
DC Power
connector
Wi-Fi
Bluetooth
EVB-ANT-1

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The RF signal can be connected to the antenna board through the onboard NINA-B4 U.FL connector,
with control signals, as shown in Figure 16.
Figure 16: NINA-B4 connector to custom antenna board
4.4 UART connections to board
EVB-ANT-1 supports a quad-channel UART interface that connects to:
•MCU
•NINA-B411 module hosted on the ANT-B family
•onboard NINA-B411 module hosted on EVK-ANT-B1
Figure 17: UART connections over USB

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The UART connections on the ANT-B family and onboard NINA-B411 are connected to the MCU by
default. It is possible to connect directly from the USB connector to either:
•NINA-B411 hosted on the ANT-B family board (with jumper J12 removed)
•onboard NINA-B411 (with jumper J11 removed)
The connection options make it possible to perform software updates or configuration through the
UART interface. For jumper locations, see Figure 12.
4.5 EVB-ANT-1 software
4.5.1 Default software
The board comes flashed with example software that implements the Anchor point use case.
The software is developed using NXP’s MCUXpresso Software and Tools and is available as an
open-source resource from the dedicated GitHub repository [19].
Follow the README file in the GitHub repository for further instructions.
4.5.2 Flashing
EVB-ANT-1 is normally flashed over the JTAG interface on the board. A debugger and a cable for the
19-pin JTAG interface is needed.
The code is stored on a NOR flash connected to the MCU.
It is also possible to use the Serial downloader over USB. This is done by changing the boot
configuration to start up in Serial downloader mode, see Boot options.
4.5.3 Web configuration interface
EVB-ANT-1 supports an Ethernet web interface that is preconfigured with IP address 192.168.1.102
and subnet mask 255.255.255.0. To connect EVB-ANT-1 to a router or directly to a PC, enter
"http://192.168.1.102/" in your browser and configure the platform with the same subnet as the
connected device. The network parameters are configured from the web interface on port 80 of each
device, as shown in Figure 18. For further information about configuring the platform, see also the
README.md notes in EVB-ANT-1 software GitHub repository [19].
Figure 18: EVB-ANT-1 default software configuration interface with Ethernet network configuration
☞The Anchor point is enabled in the default software on EVB-ANT-1.

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From the web configuration interface, you can:
•Configure network settings for Wi-Fi and ethernet. The default IP address of EVB-ANT-1 is a fixed
IP address of 192.168.1.102.
•Send UDP packets containing angle events generated by the anchor. It is often convenient to
broadcast the address of the network, as shown in Figure 19.
•Configure the active NINA-B411 module as either the NINA-B411 mounted on the ANT-B10 board
or the onboard NINA-B411 (connected to the custom antenna header).
Figure 19: Configuring the active NINA-B411 and destination for angle events
After updating the configuration, select Submit to send it to the MCU and save it to flash. Select Read
to retrieve current configuration.
4.5.4 SW Reset
To reset EVB-ANT-1 software settings, press and hold the SW5 button for 2 seconds during board
bootup. The location of SW5 and other buttons is shown in Figure 12.
4.6 Boot options
Use the SW3 DIP switches to set the board in regular boot mode or serial downloader mode, as shown
in Table 2.
Switch/Boot option
Switch 1
Switch 2
Switch 3
Switch 4
Boot from flash
Off
Off
On
Off
Serial Downloader
Off
Off
Off
On
Table 2: Boot options using switch SW3