Table Of Contents; Contents - Ublox NINA-B3 Series System Integration Manual

Stand-alone bluetooth 5 low energy modules

Table of Contents

Document information ................................................................................................................................ 2

Contents .......................................................................................................................................................... 3

System description ............................................................................................................................... 6

1.1 Overview and applications ........................................................................................................................ 6

1.2 Architecture ................................................................................................................................................. 8

1.2.1 Block diagrams .................................................................................................................................... 8

1.2.2 Hardware options ............................................................................................................................... 8

1.2.3 Software options ................................................................................................................................ 8

1.3 Pin configuration and function ................................................................................................................. 9

1.4 Supply interfaces ........................................................................................................................................ 9

1.4.1 Main supply input ............................................................................................................................... 9

1.4.2 Digital I/O interfaces reference voltage (VCC_IO) ........................................................................ 9

1.4.3 VCC application circuits .................................................................................................................... 9

1.5 System function interfaces ....................................................................................................................10

1.5.1 Module reset ......................................................................................................................................10

1.5.2 Internal temperature sensor ..........................................................................................................10

1.6 Debug - Serial Wire Debug (SWD) .........................................................................................................10

1.7 Serial interfaces ........................................................................................................................................10

1.7.1 Universal Asynchronous Serial Interface (UART) ......................................................................10

1.7.2 Serial Peripheral Interface (SPI) .....................................................................................................11

1.7.3 Quad serial peripheral interface (QSPI) ........................................................................................11

1.7.4 I2C interface.......................................................................................................................................12

1.7.5 USB 2.0 interface ..............................................................................................................................12

1.8 GPIO pins .....................................................................................................................................................12

1.8.1 Analog interfaces ..............................................................................................................................13

1.9 Antenna interfaces ...................................................................................................................................14

1.9.1 Antenna pin - NINA-B3x1 ................................................................................................................14

1.9.2 Integrated antenna - NINA-B3x2/B3x6........................................................................................15

1.9.3 NFC antenna ......................................................................................................................................15

1.10 Reserved pins (RSVD) ..............................................................................................................................15

1.11 GND pins .....................................................................................................................................................15

Software ................................................................................................................................................ 16

2.1 u-connectXpress software ......................................................................................................................16

2.2 Open CPU ....................................................................................................................................................17

2.2.1 Nordic nRF5 SDK ..............................................................................................................................17

2.2.2 Zephyr .................................................................................................................................................21

2.2.3 Saving Bluetooth MAC address and other production data ....................................................22

2.2.4 Support - Nordic development forum ..........................................................................................23

2.3 Updating NINA-B31 software .................................................................................................................23

2.3.1 Updating over UART.........................................................................................................................23

UBX-17056748 - R13

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NINA-B3 series - System integration manual

Contents

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