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NINA-B31 series - Getting Started 

 

UBX-18022394 - R02 

Configuration

  

Page 7 of 26 

 

 

 

2

 

Configuration 

You can configure the NINA-B31  module according to your specific requirements by means of AT 
commands (see u-blox Short Range Modules AT Commands Manual [1]). The easiest way to get 
started is to use the u-blox s-center, which is a graphical user interface for sending the  
AT-commands (see s-center Product Summary [4]). The u-blox s-center enables easy configuration 
for the most common AT commands. 

2.1

 

Basic settings 

There are some basic commands for controlling the general Bluetooth behavior of the module as listed 
below. 

 

Connection Mode - AT+UBTCM: Configures the module for incoming connections. 

 

Discover Mode - AT+UBTDM: Configures the visibility for remote devices making inquiries. 

 

Pairing Mode - AT+UBTPM: Configures the ability to pair (authenticate) to remote devices. 

 

Bluetooth name -  AT+UBTLN:  Sets the name presented to remote devices making inquiries or 
name requests. 

Once pairing has been done with a remote device, it is recommended to disable both discover and 
pairing mode for security reasons and performance.  

2.2

 

Peers 

A connection consists of a sender and a receiver of data. Every sender and receiver in a setup is 
referred to as a peer. Thus, a peer is capable of either receiving or sending data. 

There are two kinds of peer classes in the serial port adapter:  

 

Local peer 

 

Remote peer 

The local peer is synonymous with the UART. In contrast to the local peer, the remote peer is another 
device. Several remote peers can be defined if a multidrop scenario is needed. 

A remote peer is addressed using a Uniform Resource Locator, URL. These locators are strings 
representing the nodes on internet or on a local net. This is the same addressing technology used in 
case of a web browser. For more information about URLs, see 

http://www.rfc-base.org/txt/rfc-

1738.txt

. 

In general, URLs are written as follows:   

 

<scheme>:<scheme-specific-part> 

Where <scheme> is the scheme or protocol used when communicating and <scheme-specific-part> 
is normally the address and port number of the remote node. For example, a web server on the internet 
can have the following address: 

http://www.u-blox.com/

 

This tells the browser to use the HTTP protocol and connect to the node at address  

http://www.u-blox.com/

. A similar addressing scheme is used by NINA-B31  to pinpoint the remote 

peer. The scheme is not "http", but the node addressing is identical. 

Available schemes: 

 

sps, which is for the Bluetooth low energy u-blox Serial Port Service 

Syntax: 

 

sps://bluetooth_address/ 

Содержание NINA-B31 Series

Страница 1: ...les Getting Started Abstract This document describes how to set up and use the NINA B31 series Bluetooth 5 low energy module with the u blox connectivity software It also provides a technical overview...

Страница 2: ...may hold intellectual property rights in the products names logos and designs included in this document Copying reproduction modification or disclosure to third parties of this document or any part t...

Страница 3: ...1 LED indications and buttons 13 3 2 Restore default serial settings 14 3 3 Restore factory settings 14 3 4 Enter the bootloader 14 3 5 Flashing the module 14 4 Use case examples 15 4 1 Connect two NI...

Страница 4: ...t using default physical layer 21 4 14 2 Define CODED phy using extended advertising and scanning 22 4 15Change Device Information values of NINA B31 22 4 16Write NINA B31 GPIO pin and read NINA B31 G...

Страница 5: ...NINA B31 module to automatically setup a connection and or accept an incoming connection using AT commands For a host this means that an existing serial cable can be replaced by a wireless solution in...

Страница 6: ...e server side sends the number of credits to the client using the credit indication and the client writes the number of credits to the server The credits correspond to the number of packets the remote...

Страница 7: ...eiver of data Every sender and receiver in a setup is referred to as a peer Thus a peer is capable of either receiving or sending data There are two kinds of peer classes in the serial port adapter Lo...

Страница 8: ...server profile NINA B31 has the SPS enabled by default 2 4 2 Mbps physical layer PHY In Bluetooth 5 a new physical layer has been introduced This physical layer doubles the modulation rate as compared...

Страница 9: ...a terminal window though the characters can also be typically pasted instead The module leaves the command mode and enters data mode using the ATO1 ATO2 command It is also possible to toggle the UART...

Страница 10: ...s also possible to execute AT commands as part of the extended data mode protocol Hence it is not necessary to enter the command mode from the extended data mode Figure 5 Extended data mode No extende...

Страница 11: ...e AT UBTCFG command is used to set the maximum number of Bluetooth connections In data mode data is transmitted over air to all the connected devices and the data received from remote devices is inter...

Страница 12: ...hanged out of band Use the security mode 1 Bluetooth 2 1 auto accept security AT UBTSM 1 to start with It is highly recommended to analyze the security and if appropriate use a more secured solution f...

Страница 13: ...9 Figure 9 EVK NINA B31 Evaluation board The LED indicates what mode is currently active and what activity is currently in progress The following color indications are used See EVK NINA B3 User Guide...

Страница 14: ...seconds during power up the factory settings are restored You can also restore to the factory settings using the AT UFACTORY command followed by power off on 3 4 Enter the bootloader To enter the boot...

Страница 15: ...ss AT UDDRP 0 sps 112233445566 2 Startup NINA B31 in data mode AT UMSM 1 Store configuration AT W Restart NINA B31 AT CPWROFF Set up second NINA B31 as a Peripheral Device B NINA B31 has the u blox Se...

Страница 16: ...re information about Eddystone To change advertise packet on NINA B31 to include the Eddystone URL in this example the URL will point to the u blox home page AT UBTAD 0303AAFE0D16AAFE10F801752D626C6F7...

Страница 17: ...ces and its characteristics can be found at 8 and 9 AT UBTGSER 180D UBTGSER 30 Add a Heart Rate measurement characteristic with notification support AT UBTGCHA 2A37 10 1 1 UBTGCHA 32 33 Optionally cha...

Страница 18: ...handle 65535 from the UBTGDP and Discover all characteristic descriptors AT UBTGDCD 0 32 65535 UBTGDCD 0 32 33 2902 OK After finding the Client Characteristic Configuration descriptor 2902 use the des...

Страница 19: ...enabled smart phone when you touch the NFC antenna of NINA B31 with your smart phone Set URI to NFC tag AT UNFCURI 1 https www u blox com Enable NFC URI AT UNFCEN 2 Touch the NFC antenna of NINA B31 w...

Страница 20: ...orary Key AT UBTOTK 0 Read the random OOB Temporary Key AT UBTOTK UBTOTK 239FBA31E3A435B10AF28B5FEF47DDC1 Note the local address for pairing from Device B AT UMLA 1 UMLA D4CA6EB00613 Set up NINA B31 D...

Страница 21: ...data mode ATO1 4 14 Connect two NINA B31 using Coded PHY 4 14 1 Connect using default physical layer The default physical layer PHY is used when connecting two NINA B31 modules Set preferred PHY on bo...

Страница 22: ...ce A to Device B Create an SPS connection to Device B use AT UMLA 1 to find the address of device B AT UDCP sps 223344556677p Go to data mode on both devices ATO1 4 15 Change Device Information values...

Страница 23: ...PIOC 4 255 UGPIOC 5 255 UGPIOC 24 255 UGPIOC 25 255 UGPIOC 27 255 OK Set pin 2 as an input no resistor activated AT UGPIOC 2 1 0 Read the current value of pin 2 current value is 0 zero AT UGPIOR 2 UGP...

Страница 24: ...a Set Ready DTR Data Terminal Ready EDM Extended Data Mode EDR Enhanced Data Rate GATT Generic Attributes GPIO General Purpose Input Output HTTP Hypertext Transfer Protocol LED Light Emitting Diode NF...

Страница 25: ...cation Document No UBX 14044126 8 https www bluetooth com specifications gatt services 9 https www bluetooth com specifications gatt characteristics 10 u blox Low Energy Serial Port Service Protocol S...

Страница 26: ...onal Office China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox com Support support...

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