u-blox EVK-NINA-B3 User Manual

B3 series

5 low energy modules. It also describes the different options for debugging

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EVK-NINA-B3

Evaluation kit for NINA-B3 modules

User guide

Abstract

This document describes how to set up the EVK-NINA-B3 evaluation kit to evaluate NINAstandalone Bluetooth® and the development capabilities included in the evaluation board.

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EVK-NINA-B3 - User guide

u-blox or third parties 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 thereof is only permitted with the express written permission of u The information contained herein is provided “a implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a par purpose of the information. This document documents, visit www.u Copyright © u

Document information

Title EVK-NINA-B3

Subtitle Evaluation kit for NINA-B3 modules

Document type User guide

Document number UBX-17056481

Revision and date R07 7-Dec-2020

Disclosure restriction C1-Public

This document applies to the following products:

Product name Type number Software support PCN reference

EVK-NINA-B301 EVK-NINA-B301-00 Open CPU EVK-NINA-B311 EVK-NINA-B311-01 u-connectXpress -

EVK-NINA-B302 EVK-NINA-B302-00 Open CPU EVK-NINA-B312 EVK-NINA-B312-01 u-connectXpress -

EVK-NINA-B306 EVK-NINA-B306-00 Open CPU EVK-NINA-B316 EVK-NINA-B316-01 u-connectXpress -

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-blox AG.

-blox.com.

-blox.

s is” and u-blox assumes no liability for its use. No warranty, either express or

may be revised by u-blox at any time without notice. For the most recent

ticular

EVK-NINA-B3 - User guide

1 Product description

1.1 Overview

The u-blox EVK-NINA-B3 evaluation kit is a versatile development platform that allows quick prototyping of a variety of extreme low-power Internet of Things (IoT) applications, using full Bluetooth 5, NFC, and IEEE 802.15.4.

The u-blox EVK-NINA-B3 boards are available in the following variants, depending on the required antenna and software solution:

• EVK-NINA-B301, with an open CPU NINA-B301 module and an antenna connector for connecting to external antennas.

• EVK-NINA-B311, with a u-connect NINA-B311 module pre-flashed with u-connectXpress software, and an antenna connector for connecting to external antennas.

• EVK-NINA-B302, with an open CPU NINA-B302 module that includes an internal antenna (a unique

2.4 GHz metal sheet antenna, soldered onto the module).

• EVK-NINA-B312, with a u-connect NINA-B312 module pre-flashed with u-connectXpress software and an internal antenna (a unique 2.4 GHz metal sheet antenna soldered onto the module).

• EVK-NINA-B306, with an open CPU NINA-B306 module that includes an internal PCB trace antenna.

• EVK-NINA-B316, with a u-connect NINA-B316 module pre-flashed with u-connectXpress software and an internal PCB trace antenna.

Figure 1: EVK-NINA-B301/-B311 evaluation board

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Figure 2: EVK-NINA-B302/-B312 evaluation board

⚠ Take care when handling the EVK-NINA-B302 or EVK-NINA-B312. Applying force to the NINA

module might damage the internal antenna.

Figure 3: EVK-NINA-B306/-B316 evaluation board

The evaluation boards provide access to all the 38 GPIO pins and interfaces available on the NINA-B3 modules through a variety of connectors and interfaces including Arduino™ Uno R3 [1] and Raspberry Pi [2] header connectors.

The stand-alone NINA-B3 modules include an Arm flash and 256 kB RAM, running at a system clock of 64 MHz. This has been integrated inside the Nordic Semiconductor nRF52840 chip that the modules are based on. The evaulation board provides simple USB drag-n-drop programming and a SEGGER J-Link debug interface that can be used with the Open CPU variants of the EVK. Nordic Semiconductors, the manufacturer of the nRF52840 chip that the NINA-B3 series are based on, provides a free Software Development Kit (SDK) with a broad selection of drivers, libraries, and example applications that can be used for rapid prototyping.

®

Cortex®-M4F microcontroller with 1 MB internal

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1.2 Kit includes

The EVK-NINA-B3 evaluation kit includes the following:

• NINA-B3 evaluation board

• 2.4 GHz antenna with U.FL connector (only in EVK-NINA-B301 and EVK-NINA-B311)

• NFC antenna

• USB cable

• Quick start card

1.3 Key features

• u-blox NINA-B3 Bluetooth low energy module based on the Nordic nRF52840 chipset

o Full Bluetooth 5 support o NFC tag functionality o 802.15.4 PHY o Integrated Arm Cortex-M4 microcontroller with 1 MB flash, 256 kB RAM, and 64 MHz

system clock

o USB 2.0 o Wide 1.7-3.6 V supply range

• The NINA-B3 module supports different interfaces that can be configured to any of the 38 available GPIO pin(s):

o 8 analog capable inputs o 12 PWM capable outputs o 3x SPI o 2x UART with HW flow control o 2x I2C o 1x I2S o 1x PDM input o 1x Quadrature decoder

• EVK-NINA-B31x support for u-connectXpress software

• EVK-NINA-B30x support for developing your own software on the Open CPU NINA-B3 module

• Full UART to USB converter with a Virtual COM port, allowing control of the extended UART

features of u-blox u-connectXpress software

• On-board J-Link debugger/programmer

o Mass Storage Device interface to PC for drag-n-drop programming o Debug port o An additional Virtual COM port that, for example, may be connected to add-on boards

or to a debug UART on the NINA-B3

• Dedicated USB connector for the NINA-B3 USB interface

• Additional flash memory can be added to the board for use by the NINA-B3 module

• RGB LED and push buttons

• Arduino UNO R3 and Raspberry Pi compatible pin header interfaces

• Jumper headers and level shifters allow for flexible powering options of the NINA-B3 module, even

with full board support. They isolate the module entirely and control each power net separately in order to precisely measure low power applications or disconnect only unused parts of the board to save battery life.

• Multiple board power supply options

o 5-12 V power plug o 5 V USB supply o 5-12 V Arduino VIN input

• Battery holder supporting CR2032 coin cell batteries

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UART

to USB

USB

conn.

Interface

MCU

(Program &

Debug Unit)

USB Hub

USB

conn.

Batt.

holder

Power

plug

RF

conn.

Vol tage

Level

Shifters

UART

SWD

Flash

Memory

3.3 V VDD_NINA

DC/DC

reg.

Protect.

diodes

NFC antenna connector

Dedicated NINA USB 2.0 conn.

VDD_NINA

Bluetooth 8 0 2 . 15 . 4

Arduino Uno R3 interface

D0D1D2D3D4D5D6

D7

D8D9D10

D11

D12

D13

SCL

SDA

A0

A1

A2

A3

A4

A5

IOREF

3V3

5V

VIN

GND

RESET

ADC/Comp.

GPIO/Dig. Interface GPIO/Dig. Interface

UART

GPIO/Dig. Int.

UART

SW2

Raspberry Pi 40 pin GPIO header

3V3

5V

GND

GPIO/Digital Interface

UART

ID_SC

ID_SD

RPi_3

RPi_4

RPi_5

RPi_6

RPi_7

RPi_2

RPi_8

RPi_9

RPi_10

RPi_11

RPi_12

RPi_13

RPi_14

RPi_15

RPi_16

RPi_17

RPi_18

RPi_19

RPi_20

RPi_21

RPi_22

RPi_23

RPi_24

RPi_25

RPi_26

RPi_27

NINA

Module

User

RGB LED

User

buttons

Reset button

NINA SWD conn.

NINA signal

jumper header

SWD

UART

COM port pin header

Power selector

jumper headers

USB

3.3 V

QSPI

20-pin Trace connector

ETM/ITM Trace

USB

NFC

RF

VBUS

CR2032

3 V

5 - 12 V

NINA COM port

NINA program & debug

Additional COM port

1. 7 - 3 . 6 V

Raspberry Pi pin NINA Open CPU function

NINA Open CPU function

Arduino pin

NINA Connectivity Software function

1.4 EVK-NINA-B3 block diagram

The block diagram in Figure 4 shows the major interfaces and internal connections of the EVK-NINAB3. The following sections describe in detail how the different interfaces are connected and may be used, as well as how the evaluation board may be configured to suit the needs of the user.

Figure 4: EVK-NINA-B3 block diagram

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J5

2

1

1 4

GNDVIN

5 - 12 V

NFC1

GND

NFC2

U.FL RF coax

GND

N/C

VDD_IO

GND

SWDIO

SWDCLK

GPIO_8

N/C

RESET_N

BT1

J17

Power

J8

J16

USB

Debug

J12

Antennas

J11

J10

CR2032

+

3V

2 1

10 9

Micro USB

J17

Debug

Power

Antennas

USB

J8

J5

BT1

J12

J16

J10

J11

Board Connectors

1.5 Connectors

Figure 5 shows the available connectors of the EVK-NINA-B3 and their layout. Table 1 describes the connectors and their uses in detail.

Figure 5: Available connectors and their pinout

Connector annotation

J5 Power supply 2.1 mm power jack, the center pin is the positive terminal. 5 – 12 V input.

J17 Power supply Pin header that can be used to connect external power supplies. 5 – 12 V input.

BT1 Battery holder CR2032 coin cell battery holder. CR2032 usually has a 3 V potential when fully

J11 NFC antenna

J10 2.4 GHz RF antenna

J12 Cortex Debug

J8 Power supply, COM

J16 Power supply and

Table 1: EVK-NINA-B3 connector description

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Function Description

connector

port and debug USB

NINA USB port

charged.

Pin header that connects to the u-blox NFC antenna included in the kit. The antenna can be mounted in either direction.

U.FL coaxial connector that can be used to connect antennas or RF equipment. This connector is only included in the EVK-NINA-B301/EVK-NINA-B311.

10-pin, 50 mil pitch connector that can be used to connect external debuggers to the NINA-B3 module. The NINA-B3 modules support Serial Wire debug (SWD) and Serial Wire Viewer, but not JTAG debug.

The main USB connector that is used to program, debug, and communicate with the NINA module. It can also be used to power the entire board.

Additional USB connector directly connected to the NINA-B3 USB interface. Can also be used to power the entire board.

EVK-NINA-B3 - User guide

2 Setting up the evaluation board

2.1 Evaluation board setup

The EVK-NINA-B311/-B312/-B316 is delivered with the u-connectXpress software installed on the module.

Before connecting the module, download and install the latest u-blox s-center evaluation software from the u-blox website.

To use Bluetooth low energy on the EVK-NINA-B301/-B311, connect a 2.4 GHz antenna to the U.FL antenna connector (J10). The other EVK versions include antennas on the NINA module.

Plug in either an external power supply in the J5 connector or connect to a USB host with a USB cable attached to the J8 connector. You can also power the evaluation board with a CR2032 coin cell battery. The NFC antenna can be connected to the J11 connector.

☞ Make sure that the power configuration jumpers are connected according to your use case.

See Section 3.1 for details, the default configuration shown in section 3.1.2 will work for most use cases.

⚠ Be careful to check polarity before connecting an external power supply to the EVK-NINA-B3

evaluation board. Center conductor is positive (+) and the ring is negative (-).

The operating system will install the correct drivers automatically. The drivers will have to be installed only the first time you connect the unit to a new computer.

⚠ If the drivers are not installed automatically, download nRF Connect from www.nordicsemi.com to

get the J-Link CDC UART driver.

Two COM ports will automatically be assigned to the unit by Windows:

• The COM port labeled ‘USB Serial Port’ is used to communicate with the NINA module’s UART interface.

• The COM port labeled ‘JLink CDC UART Port’ can be used as an extra USB to the UART interface; see section 4.4.2 for more information.

Do the following to view the assigned COM ports on Windows 7:

• Open the Control Panel and click Hardware and Sound.

• Click Device Manager in Devices and Printers. This will open Device Manager window where you

can view the assigned COM ports.

To view the assigned COM ports on Windows 10, right click on the Windows Start button and select Device Manager.

2.2 Starting up

EVK-NINA-B31x

2.2.1.1 General usage

The EVK-NINA-B31 is delivered with u-connectXpress SW, and contains a secure boot that will only allow signed SW from u-blox to boot.

Perform the following steps to enable communication with the module:

1. Start the u-blox s-center evaluation software.

2. Use the default baudrate 115200, 8N1 with flow control.

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EVK-NINA-B3 - User guide

You can now communicate with the module using AT commands.

For a list of available AT commands, see the u-connect AT commands manual [5]. To get started with the basic use case set up of the EVK-NINA-B3 with u-blox u-connect software, see the u-connectXpress user guide [7].

2.2.1.2 u-connect software

Go to the u-blox support webpage to obtain the latest available firmware. Instructions on reflashing the EVK-NINA-B3 can be found in the Software section of the NINA-B3 system integration manual [4].

EVK-NINA-B30x

2.2.2.1 Nordic Semiconductor SDK

The EVK-NINA-B30x is delivered without any SW preflashed,

If you would like to use the EVK-NINA-B3 together with Nordic Semiconductor SDK, refer to the Software section of the NINA-B3 System integration manual [4] that describes how to:

• Create your own board file

• Adapt the examples in the Nordic Semiconductor SDK to use this board file

See also the u-blox short range open CPU github repository [8].

2.2.2.2 Software debug options

You can debug the software using the following two options in EVK-NINA-B3:

• Onboard debug solution available on the USB connector

• Using an external debugger connected to J12 connector

An external debugger connected to the J12 connector is useful when powering the evaluation board with a CR2032 coin cell battery, or through the J5 external power supply connector. It could also be useful in a scenario where the debug MCU interface has been disconnected from the NINA-B3 module using the jumpers on the J19 header. The SEGGER J-Link software [6] is required in order to debug using the onboard J-Link hardware on the EVK-NINA-B3.

2.3 Measuring current consumption

☞ Before starting the current consumption measurement, go through Chapter 3 and identify

which power configuration you will need and if you need to isolate any NINA signals. The jumper connecting J22 pins 1 and 3 must be removed in order to be able to measure current consumption.

Figure 6 shows some suggestions for measuring the current consumption of the NINA-B3 module, and how to connect the various instruments.

Using an ampere meter

An ampere meter should be connected in series with whatever the power source is and what is being measured. It is possible to measure current this way both while supplying the NINA module from the onboard 3.3 V regulator and from an external supply.

Using a volt meter

In order to use a voltmeter to measure current, the EVK must first be modified. Solder a low resistance, high tolerance, 0402 sized resistor to the footprint labeled R6. This resistor will replace the jumper normally positioned between J22 pins - 1 and 3, and any current running through, it will produce a voltage across its terminals. Measure this voltage using the voltmeter and calculate the current using Ohm’s law.

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EVK-NINA-B3 - User guide

J22

VCC_IO

VCC

1

GND

5

A

J22

VCC_IO

VCC

1

GND

5

A

6 4

R6

J22

VCC_IO

VCC

3

1

V

J22

VCC_IO

VCC

3

1

A

Ampere meter

Volt meter

One channel Two channels

GND GND

Onboard

3.3 V supply

DC/DC

External supply

1.7 - 3.6 V

-.-- V

Using an external power supply or power analyzer

Connect the instrument terminals to the EVK pins, as shown in Figure 6. An ampere meter may be added in series. Since an external instrument’s voltage can never perfectly match the EVK’s generated 3.3 V, there will be a very small current leakage whenever a NINA module signal is connected to an EVK peripheral, typically in the order of 100’s of nano amps. To reduce this leakage, use a second external power channel to supply the EVK peripherals. This second channel must also be used to enable PC communication when using NINA supply voltages other than 3.3 V.

Figure 6: Current consumption measuring options

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EVK-NINA-B3 - User guide

Diode protection

3.3 V

DC/DC

Regulator

Fuse

5 V

3.3 V

Diode protection

3 V

2.7 V

J7 Power select jumper header

J22 NINA power select jumper header

VDD_NINA

3.3 V

VIN

1.7 - 3.6 V external supply

J1 and J14 Arduino and Raspberry Pi pin headers

VCC VCC_IO

VDD_IO

NINA

Module

Board

peripherals

BT1

CR2032

3 V

J5

5 - 12 V

J8

5 V

J 16 5 V

J17 pin 2

VIN pin header

5 - 12 V

J1 pin 8

Ardunio VIN pin

5 - 12 V

Diode protection

USB

conn.

Batt.

holder

Power

jack

USB

conn.

3 Board configuration

3.1 Powering options

Power can be supplied to the board in any of the following ways:

• Via any of the USB connectors, J8 or J16

• Using the power jack, J5

• Using the Arduino interface VIN or 5V pin, J1.8 or J1.5

• Using the Raspberry Pi interface 5V pins, J14.2 or J14.4

• Using the pin header J17

• Plugging in a battery to the battery holder BT1

These power supply sources are distributed to the rest of the board as shown in Figure 7.

⚠ Check the jumper positions carefully; if a jumper is connected in a wrong way, it can permanently

Figure 7: Block diagram of the power net distribution

Selecting the power configuration jumpers

The EVK-NINA-B3 offers flexible powering options for the NINA-B3 module and the board itself. To configure this, jumpers are added or removed to pin headers, shorting two of the pins together and connecting or disconnecting different power nets on the evaluation board.

Figure 8 provides an overview of the available EVK power sources and shows the schematic net names to which they are connected.

damage the components that are ON or connected to the board. Also note that some jumpers should not be mounted simultaneously.

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EVK-NINA-B3 - User guide

DC/DC

Onboard 3.3 V

converter

Battery

Battery with

protection diode

MCU

PC communication

HAT

Raspberry Pi

expansion board

NINA module power

Board I/O power:

Level shifters, LEDs etc.

3V3

VBAT_DIODE

VBAT

VDD_MCU

3V3_PI

VDD_IO

VCC VCC_IO

Sources Net names

Targets

Any power net

-.-- V

External supply

iguration

GNDGND

VDD_MCU

VDD_NINA

3V3_PI

3V3

VBAT

VBAT_DIODE

3V3

J7

J22

111

12 2

J7

GNDGND VDD_IO VCC_IO

VDD_NINA

VCC

5

6

2

1

J22

Power Conf

Figure 8: Available EVK power sources and targets

Figure 9 shows the pinout location of power configuration jumper headers J7 and J22.

Figure 9: Jumper headers J7 and J22

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EVK-NINA-B3 - User guide

Table 2 describes the pinout of jumper headers J7 and J22 used to configure the board power nets.

Connector annotation

J7 1 3V3 Regulated 3.3 V net. This net is supplied by the board and will always be

J22 1 VCC NINA module voltage supply that connects to the module VCC pin. Shorted

Table 2: J7 and J22 pin out

Pin number

2 3V3_PI Connects to the Raspberry Pi header’s (J14) 3V3 pins. If a Raspberry Pi is

3 VBAT_DIO

4 VDD_NINA Connects to J22 pin 3, from where it can be connected to the module supply

5 VBAT Battery + terminal

6 VDD_NINA Connects to J22 pin 3, from where it can be connected to the module supply

7 3V3 Regulated 3.3 V net. This net is supplied by the board and will always be

8 VDD_NINA Connects to J22 pin 3, from where it can be connected to the module supply

9 3V3 Regulated 3.3 V net. This net is supplied by the board and will always be

10 VDD_MCU Supply net for the board functions not directly connected to the NINA

11 GND Ground net.

12 GND Ground net.

2 VCC_IO Connects to the NINA module VCC_IO pin. Shorted to the VCC net via 0 Ω

3 VDD_NINA Connects to J7 pins 4, 6 and 8. Short J22 pins 1 and 3 allow the EVK to

4 VDD_IO Supply net for level shifters, LEDs and peripherals connected directly to the

5 GND Ground net.

6 GND Ground net.

Schematic

net name

DE

Description

powered as long as a power source is connected.

connected, this net must be unconnected to prevent back currents. If a HAT is connected, this net can be shorted to the EVK 3.3 V supply to power the HAT.

To protect the battery from current back surges, connect the battery to the NINA module via a protection diode using this pin.

pin or somewhere else.

powered as long as a power source is connected.

pin or somewhere else.

powered as long as a power source is connected.

module; Interface MCU, USB hub, UART to USB converter etc.

to the VCC_IO net via 0 Ω resistor R4 by default.

resistor R4 by default.

power the NINA module.

NINA module. Short J22 pins 2 and 4 use the NINA module I/O voltage as supply.

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EVK-NINA-B3 - User guide

J7

BOARD

NINA

3V3

34

2 1

J22

VCC_IO

VCC

7

8

9

10

NINA module powerboard I/O power

J22: 2-4 J22: 1-3

PC communication

MCU

DC/DC

EVB powered

J7: 9-10J7: 7-8

Default power configuration, 3.3 V

This is the default power configuration for the evaluation board, and the jumpers are installed out of the box with this power configuration. All board peripherals are powered up, the NINA module is directly supplied by the board and everything is running at 3.3 V.

Figure 10: Jumper positions for default power configuration

Connector annotation

J7 7, 8 Selects the board regulated 3.3 V net as source for the VDD_NINA net.

J22 1, 3 Powers up the NINA module. The NINA VCC and VCC_IO pins are connected to the selected

Table 3: Jumper positions for default power configuration

Add jumper to pins

9, 10 Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.

2, 4 Powers up the peripherals directly connected to NINA such as LEDs and external memory with

Description

source for the VDD_NINA net.

the NINA supply voltage.

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EVK-NINA-B3 - User guide

J7

BOARD

BATT

3V3

34

2 1

J22

VCC_IO

VCC

5

6

9

10

NINA module powerboard I/O power

(optional)

J22: 2-4 J22: 1-3

PC communication

(optional)

MCU

J7: 9-10

Battery powered

J7: 5-6

Battery powered, 3 – 1.7 V

Figure 11 shows the default configuration for battery-powered operation, where the jumpers highlighted with dashed lines are optional.

The battery voltage is connected to VDD_NINA, which in turn, is connected to the NINA-B3 VCC supply. If needed, a jumper can be added to J22 pins - 2 and 4 to supply LEDs and other peripherals with power – as long as this does not exceed the maximum current rating of the battery. If the NINA module has to be configured, the VDD_MCU net can be connected to enable PC communications by adding a jumper to the J7 pins 9 and 10.

☞ Jumpers must be connected to both J7: 9-10 and J22: 2-4 to be able to communicate with the

NINA module from a PC. If possible, the EVB power configuration should be switched to the default 3.3 V configuration, as connecting an extra board peripheral might deplete the battery.

⚠ Do not connect jumpers J7: 5-6 and J7: 7-8 at the same time while a battery is connected! This

might cause damage to the battery.

Figure 11: Jumper positions for battery powered operation (jumpers shown with dashed lines are optional)

Connector annotation

J7 5, 6 Selects the battery connected to the battery holder as source for the VDD_NINA net.

J22 1, 3 Powers up the NINA module. The NINA VCC and VCC_IO pins are connected to the selected

Table 4: Jumper positions for battery powered operation (two optional jumpers)

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Add jumper to pins

9, 10 (Optional) Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.

2, 4 (Optional) Powers up the peripherals directly connected to NINA such as LEDs and external

Description

source for the VDD_NINA net.

memory with the NINA supply voltage.

EVK-NINA-B3 - User guide

J7

BOARD

BATT DIODE

3V3

34

2 1

J22

VCC_IO

VCC

3

4

9

10

NINA module powerboard I/O power

(optional)

J22: 2-4 J22: 1-3

PC communication

(optional)

MCU

J7: 9-10

J7: 3-4

Battery powered

with protection

Battery powered with protection diode, 2.7 – 1.7 V

This use case is meant to protect the battery from current back surges. When using the NFC interface, there is a risk that the applied electromagnetic field can cause back surges on the module power supply lines that typically damage a non-chargeable battery. To prevent this potential damage, a schottky diode is added in series with the battery to block any back current surges.

Figure 12 shows the jumper configuration for connecting the diode for battery-powered operation, where the jumper is added to J7 pins 3 and 4 instead of pins 5 and 6. The jumpers shown in dashed lines are optional.

☞ The diode will lower the voltage level of the battery by about 0.3 V.

Figure 12: Jumper positions for battery powered operation using the protection diode

Connector annotation

J7 3, 4 Selects the diode protected battery as a source for the VDD_NINA net.

J22 1, 3 Powers up the NINA module. The NINA VCC and VCC_IO pins are connected to the selected

Table 5: Jumper positions for battery powered operation with a protection diode (two optional jumpers)

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Add jumper to pins

9, 10 (Optional) Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.

2, 4 (Optional) Powers up the peripherals directly connected to NINA such as LEDs and external

Description

source for the VDD_NINA net.

memory with the NINA supply voltage.

EVK-NINA-B3 - User guide

J7

BOARD

NINA

3V3

34

J22

7

8

9

10

board I/O power

(optional)

J22: multiple

PC communication

(optional)

MCU

DC/DC

EVB powered

(optional)

J7: 9-10J7: 7-8

VCC_IO

VCC

12

56

GND

-.-- V

External supply

External supply, 3.6 – 1.7 V

When measuring current consumption or performing other NINA-B3 module characterization measurements, it can be useful to power the module with an external source such as a lab power supply. In such a case, all jumpers can be removed and the required supply nets can be fed externally by connecting to the pin headers. For example, the NINA-B3 module can be powered by connecting an external supply directly to the J22 pin 1 and GND. See section 2.3 for more information on how to connect external power supplies.

☞ Make sure that unpowered parts of the board are properly isolated from the NINA module. If a

voltage is applied to the signal of an unpowered device/component, current might leak through various protection circuits of this device. This might give false readings when measuring current consumption etc. Isolation can be achieved by removing NINA signal jumpers (see section 3.2) for example.

Figure 13 below shows a few optional jumper connections that can be helpful when supplying the module with an external supply.

Figure 13: Optional jumper positons while using an external power supply

Table 6 shows the optional jumper positions for configuring the power up behavior of the board when using an external supply.

Connector annotation

J7 7, 8 (Optional) Selects the board-regulated 3.3 V net as a source for the VDD_NINA net.

J22 3, 4 (Optional) Powers up the peripherals directly connected to NINA such as LEDs and external

Table 6: Optional jumper positions for use with an external supply

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Add jumper to pins

9, 10 (Optional) Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.

Description

memory with the selected source for the VDD_NINA net.

EVK-NINA-B3 - User guide

J7

BOARD

RASP PI 3V3

3V3

34

2 1

J22

VCC_IO

VCC

1

2

9

10

NINA module powerboard I/O power

(optional)

J22: 2-4 J22: 1-3

PC communication

(optional)

MCU

J7: 9-10

NINA

7

8

DC/DC

EVB powered

J7: 7-8

HAT

Raspberry Pi

expansion board

J7: 1-2

3V3

Raspberry Pi HAT

Use the jumper configurations shown in Figure 14 to connect a HAT to the Raspberry Pi interface. Depending on how the NINA module should communicate with a test PC over USB or with the HAT, the VDD_MCU net could be left unpowered. The jumpers shown in dashed lines are optional.

⚠ The 3V3_PI supply net must only be powered when connecting to a Raspberry Pi expansion board

(HAT). The jumper (J7: 1-2) must be disconnected if you are connecting to a Raspberry Pi board.

Figure 14: Configuration for Raspberry Pi HAT connection (optional jumpers shown with dashed lines)

Connector annotation

J7 1,2 Connects the 3V3_PI net to the regulated 3.3 V supply.

J22 1, 3 Powers up the NINA module. The NINA VCC and VCC_IO pins are connected to the selected

Table 7: Jumper configuration when connected to a Raspberry Pi HAT

Add jumper to pins

7, 8 Selects the board regulated 3.3 V net as a source for the VDD_NINA net.

9, 10 (Optional) Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.

2, 4 (Optional) Powers up the peripherals directly connected to NINA such as LEDs and external

Description

source for the VDD_NINA net.

memory with the NINA supply voltage.

3.2 Disconnecting NINA signals from board peripherals

All evaluation board peripherals, such as level shifters, LEDs, and the interface MCU are connected to the NINA-B3 module by default. This might not suit all evaluation scenarios.

All peripherals can be switched off by disconnecting their power supplies (see section 3.1), but if only specific signals have to be isolated, it will require finer control. All the NINA module signals that are connected to board peripherals have thus been routed via jumper headers, so that jumpers can be pulled or added as needed by the evaluation board user, isolating, or connecting specific signals. Figure 15 shows the physical layout of these jumper headers.

UBX-17056481 - R07 Board configuration Page 20 of 41 C1-Public

EVK-NINA-B3 - User guide

J9

J19

J9

J19

12

11

2 1

12 11

2

1

RESET_MCURESET_N

SWDIO

SWDCLK

GPIO_8

GPIO_7

GPIO_1

GPIO_16

GPIO_17

GPIO_20

GPIO_21

GPIO_22

GPIO_23

SWDIO_MCU

SWDCLK_MCU

RGB_BLUE

RGB_GREEN

RGB_RED

UART DTR

UART DSR

UART RTS

UART CTS

UART TXD

UART RXD

NINA Signal Jumper Headers

Figure 15: Jumper headers J19 and J9 used to isolate specific NINA signals

Table 8 describes the pinout for the jumper headers, J19 and J9, used for isolating or connecting specific evaluation board peripherals that are connected to the NINA-B3 module by default.

Connector annotation

J19 1 RESET_N NINA reset signal, active low

J9 1 GPIO_16/

Pin number Schematic net name Description

2 RESET_N_I Connects to the Interface MCU’s reset line

3 SWDIO SWD data signal

4 SWDIO_I Interface MCU SWD data signal, used to program/debug the NINA

module

5 SWDCLK SWD clock signal

6 SWDCLK_I Interface MCU SWD data signal, used to program/debug the NINA

module

7 GPIO_8 NINA-B30: GPIO or TRACE

NINA-B31: BLUE signal

8 BLUE RGB diode blue signal, active low

9 GPIO_7/

SWITCH_1

10 GREEN RGB diode green signal, active low

11 GPIO_1 NINA-B30: GPIO, can be used as user LED output

12 RED RGB diode red signal, active low

UART_DTR

2 UART_DTR_I UART to USB DTR signal

3 GPIO_17/

UART_DSR

4 UART_DSR_I UART to USB DSR signal

5 GPIO_20/

UART_RTS

NINA-B30: GPIO, can be used as either user LED output or push-button input NINA-B31: SWITCH_1 and GREEN signal

NINA-B31: RED signal

NINA-B30: analog capable GPIO signal NINA-B31: UART DTR output

NINA-B30: analog capable GPIO signal NINA-B31: UART DSR input

NINA-B30: analog capable GPIO signal NINA-B31: UART RTS output

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EVK-NINA-B3 - User guide

Connector annotation

Table 8: Pinout of the jumper headers - J19 and J9

Pin number Schematic net name Description

6 UART_RTS_I UART to USB RTS signal

7 GPIO_21/

UART_CTS

8 UART_CTS_I UART to USB CTS signal

9 GPIO_22/

UART_TXD

10 UART_TXD_I UART to USB TXD signal

11 GPIO_23/

UART_RXD

12 UART_RXD_I UART to USB RXD signal

NINA-B30: GPIO signal NINA-B31: UART CTS input

NINA-B30: GPIO signal NINA-B31: UART TXD output

NINA-B30: analog capable GPIO signal NINA-B31: UART RXD input

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EVK-NINA-B3 - User guide

☞

SW0

SW1

SW2

DS6

DS5

DS1

DS2

DS7

DS8

DS9

DS3

DS4

Buttons and LEDs

SW0

Reset

User button

SW1

SW2

DS3

Interface MCU LED

Status LED

DS4

TXD LED

RXD LED

RTS LED

CTS LED

DTR LED

DSR LED

DS9

DS8

DS7

DS2

DS1

DS5

DS6

4 Interfaces and peripherals

4.1 Buttons and LEDs

Figure 16: Position of the push buttons and LEDs on the evaluation board

Annotation Function Description

SW0 Reset button Connected directly to the NINA RESET_N pin.

SW1 User button Push button for application use. Connected directly to the NINA SWITCH_1 (GPIO_7) pin

SW2 User button Push button for application use. Connected directly to the NINA SWITCH_2 (GPIO_18)

pin.

Table 9: EVK-NINA-B3 buttons

Annotation Function Description Color

DS1 UART CTS LED Connected to the NINA UART_CTS (GPIO_21) pin via jumper header J9 Green

DS2 UART RTS LED Connected to the NINA UART_RTS (GPIO_20) pin via jumper header J9 Orange

DS3 Interface MCU LED Blinks on USB enumeration and activity, lit when the Interface MCU is

connected via USB

DS4 Interface MCU LED Error LED Orange

DS5 UART DTR LED Connected to the NINA UART_DTR (GPIO_16) pin via jumper header J9 Orange

DS6 UART DSR LED Connected to the NINA UART_DSR (GPIO_17) pin via jumper header J9 Green

DS7 UART TXD LED Connected to the NINA UART_TXD (GPIO_22) pin via jumper header J9 Orange

DS8 UART RXD LED Connected to the NINA UART_RXD (GPIO_23) pin via jumper header J9 Green

DS9 RGB LED Connected to the NINA RED (GPIO_1), GREEN (GPIO_7) and BLUE (GPIO_8)

Table 10: EVK-NINA-B3 LED indicators

pins via jumper header J19. The RGB LED shows the status for the uconnect applications.

See the NINA-B3 data sheet [3] for additional information.

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Green

RGB

EVK-NINA-B3 - User guide

J1

J2

J3

J4

Mounting Holes

Arduino Interface

J1

1

8

N/C VDD_IO RESET_N 3V3 5 V GND GND VIN

J2

1

6

A0/GPIO_25 A1/GPIO_24 A2/GPIO_27 A3/GPIO_18 A4/GPIO_17 A5/GPIO_16

J3

1

8

D5/GPIO_32 D4/GPIO_1 D3/GPIO_20 D2/GPIO_21 TX/D1/GPIO_22 RX/D0/GPIO_23

D6/GPIO_28

D7/GPIO_29

J4

1

10

SCL/GPIO_5 SDA/GPIO_4 N/C GND D13/GPIO_45 D12/GPIO_8 D11/GPIO_3 D10/GPIO_2 D9/GPIO_46 D8/GPIO_33

4.2 Arduino interface

The EVK-NINA-B3 includes a set of pin headers and mounting holes that are compatible with certain Arduino or Arduino inspired shields. Figure 17 shows the layout of the Arduino interface and Table 11 explains the pinout in more detail. Section 4.2.1 describes what specifications must be met for a shield to be compatible for use with the EVK-NINA-B3.

Figure 17: Pin headers that are compatible with some Arduino shields

Conn. Pin

J1 1 N/C Not Connected - - Not connected

Arduino

No.

2 IOREF I/O reference voltage level.

3 RESET NINA reset signal input. Active low

4 3.3V 3.3 V DC regulated supply output 3V3 -

5 5V 5 V regulated supply output 5V - Cannot be used as supply input, use

Description Schematic

Selectable by user to 1.7 – 3.6 V

logic

net name

VDD_IO - See section 3.1

RESET_N P0.18

nRF52 pin

6 GND Ground GND GND

7 GND Ground GND GND

8 VIN External DC supply input, 5 – 12 VDC VIN -

J2 1 A0 Analog input GPIO_25 P0.04 Analog function capable GPIO

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Alternate functions and notes

VIN instead. Only supplied by USB VBUS.

EVK-NINA-B3 - User guide

Conn. Pin

J3 1 D0/RX Digital I/O, UART RX UART_RXD/

J4 1 D8 Digital I/O GPIO_33 P1.09

Table 11: Pinout of the Arduino UNO R3 compatible interface

Arduino

No.

2 A1 Analog input GPIO_24 P0.30 Analog function capable GPIO

3 A2 Analog input GPIO_27 P0.05 Analog function capable GPIO

4 A3 Analog input SWITCH_2/

5 A4 Analog input UART_DSR/

6 A5 Analog input UART_DTR/

2 D1/TX Digital I/O, UART TX UART_TXD/

3 D2 Digital I/O UART_CTS/

4 D3 Digital I/O UART_RTS/

5 D4 Digital I/O GPIO_1 P0.13

6 D5 Digital I/O GPIO_32 P0.11

7 D6 Digital I/O GPIO_28 P0.09 Signal not connected by default.

8 D7 Digital I/O GPIO_29 P0.10 Signal not connected by default.

2 D9 Digital I/O GPIO_46 P0.12

3 D10 Digital I/O GPIO_2 P0.14

4 D11 Digital I/O GPIO_3 P0.15

5 D12 Digital I/O GPIO_8 P1.00

6 D13 Digital I/O GPIO_45 P0.07

7 GND Ground GND

8 AREF Analog reference voltage level - - Not connected

9 SDA I2C data signal GPIO_4 P0.16

10 SCL I2C clock signal GPIO_5 P0.24

Description Schematic

net name

GPIO_18

GPIO_17

GPIO_16

GPIO_23

GPIO_22

GPIO_21

GPIO_20

nRF52 pin

P0.02 Analog function capable GPIO,

P0.28 Analog function capable GPIO,

P0.03 Analog function capable GPIO,

P0.29 UART_RXD signal on NINA-B31

P1.13 UART_TXD signal on NINA-B31

P1.12 UART_CTS signal on NINA-B31

P0.31 UART_RTS signal on NINA-B31

Alternate functions and notes

SWITCH_2 on NINA-B31. This signal is pulled low when the button SW2 is pressed.

UART_DSR signal on NINA-B31

UART_DTR signal on NINA-B31

Configured for NFC use.

Arduino shield compatibility

☞ The EVK-NINA-B3 has an I/O voltage range of 1.7-3.6 V. It can therefore be used only with

shields that also support an I/O voltage within this range.

The EVK-NINA-B3 has a pinout that is compatible with some Arduino, or Arduino inspired, shields. This section describes the features of certain EVK pins that a shield must comply with:

• IOREF: The I/O voltage level of the NINA-B3 module is 3.3 V by default, but the EVK can be modified to allow other voltages (1.7-3.6 V).

• RESET: Is connected to the RESET button (SW0).

• 3.3 V: A regulated 3.3 V output. Should not be used as a voltage supply input, use the VIN pin

instead.

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EVK-NINA-B3 - User guide

• 5 V: Is only a 5 V supply output if the EVK is being powered by USB. If any other power configuration is used, this pin will be unconnected (floating). It is safe to connect an external 5 V supply to this pin even when a USB cable is connected. This pin may be used to power the board.

• VIN: May be used as a 5 -12 V supply input to power the EVK-NINA-B3.

• Pin 0 (RX): Is connected to the NINA-B3 UART RX pin (NINA pin 23).

• Pin 1 (TX): Is connected to the NINA-B3 UART TX pin (NINA pin 22).

Note on SCL/SDA: On some Arduino boards, the I

2

C signals, SCL, and SDA are connected to the pins A4 and A5 and to the SCL and SDA pins in the top right hand corner. Since these pins will be shorted together it might cause problems when connected to the EVK-NINA-B3, which has not shorted these pins together.

Note on digital I/O pins: Some of the digital I/O pins can be connected to the on-board debug MCU, thus allowing serial communication and flashing/debugging over USB. This can cause interference on the signals that are also used by an Arduino shield, see section 3.2 on how to disconnect these signals from the debug MCU.

4.3 Raspberry Pi compatible interface

The EVK-NINA-B3 includes a 40-pin GPIO header that can be used to interface with either a Raspberry Pi computer board or with a Raspberry Pi expansion board (HAT). The EVK-NINA-B3 uses different hardware and software configurations depending on if it is connected to a Pi or a HAT; the differences are covered in this section. The default configuration is to connect to a Pi.

Not all the Raspberry Pi versions and HATs are supported, since it requires the 40-pin GPIO header, which older versions did not have. Table 12 lists the compatible Raspberry Pi versions.

Compatible Raspberry Pi boards

Raspberry Pi 1 Model A+

Raspberry Pi 1 Model B+

Raspberry Pi 2 Model B

Raspberry Pi 3 Model B

Raspberry Pi Zero

Raspberry Pi Zero W

Table 12: Compatible Raspberry Pi boards

Figure 18 shows the layout of the Raspberry Pi interface and Table 13 explains the pinout in detail. There are three mounting holes that can be used for increased mechanical stability. The two holes on either side of connector J14 are common to all Raspberry Pi boards, but the third one is only compatible with the Pi Zero boards.

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EVK-NINA-B3 - User guide

J14

MOUNTING HOLES

Raspberry Pi Interface

3V3_PI GPIO_5 GPIO_4 GPIO_3

GND

GPIO_2

GPIO_52

GPIO_51

3V3_PI

GPIO_48

GPIO_47 GPIO_45

GND GPIO_42 GPIO_40 GPIO_39

GPIO_37 GPIO_36 GPIO_34

GND

5 V 5 V GND RASP_T XD RASP_RXD GPIO_1 GND GPIO_50 GPIO_49 GND GPIO_46 GPIO_44 GPIO_43 GPIO_41 GND GPIO_38 GND GPIO_35 GPIO_33 GPIO_32

J14

2

1

39 40

PULL-UP RESISTORS

R63

R62

R57

R58

R59

R60

UART RESISTORS

R44

R50

Figure 18: Pin header J14 that is compatible with the Raspberry Pi GPIO connectors

Conn. Pin

J14 1 3.3 V 3.3 V supply pin 3V3_PI - Not connected by default. See section 3.1.

UBX-17056481 - R07 Interfaces and peripherals Page 27 of 41 C1-Public

No.

Raspberry Pi pin

Description Schematic

net name

nRF52 pin

Alternate functions and notes

2 5 V 5 V supply pin 5V - Cannot be used as supply input. Supplied

by USB VBUS and protected from back powering.

3 GPIO02 Digital I/O GPIO_5 P0.24

4 5 V 5 V supply pin 5V - Cannot be used as supply input. Supplied

by USB VBUS and protected from back powering.

5 GPIO03 Digital I/O GPIO_4 P0.16

6 GND Ground GND GND

7 GPIO04 Digital I/O GPIO_3 P0.15

8 GPIO14 Digital I/O, UART TX/RX RASP_TXD P0.29 Connected to NINA UART_RXD pin by

9 GND Ground GND GND

10 GPIO15 Digital I/O, UART RX/TX RASP_RXD P1.13 Connected to NINA UART_TXD pin by

11 GPIO17 Digital I/O GPIO_2 P0.14

12 GPIO18 Digital I/O GPIO_1 P0.13

13 GPIO27 Digital I/O GPIO_52 P0.19 Connected to NINA through a solder bridge.

14 GND Ground GND GND

15 GPIO22 Digital I/O GPIO_51 P0.17 Connected to NINA through a solder bridge.

default. See section 4.3.2.

If the solder bridge is cut this pin is left floating.

EVK-NINA-B3 - User guide

Conn. Pin

Table 13: Pinout of the Raspberry Pi compatible interface

Raspberry

No.

Pi pin

16 GPIO23 Digital I/O GPIO_50 P0.20 Connected to NINA through a solder bridge.

17 3.3 V 3.3 V supply pin 3V3_PI - Not connected by default. See section 3.1.

18 GPIO24 Digital I/O GPIO_49 P0.22 Connected to NINA through a solder bridge.

19 GPIO10 Digital I/O GPIO_48 P0.21 Connected to NINA through a solder bridge.

20 GND Ground GND GND

21 GPIO09 Digital I/O GPIO_47 P0.23 Connected to NINA through a solder bridge.

22 GPIO25 Digital I/O GPIO_46 P0.12

23 GPIO11 Digital I/O GPIO_45 P0.07

24 GPIO08 Digital I/O GPIO_44 P0.27

25 GND Ground GND GND

26 GPIO07 Digital I/O GPIO_43 P0.06

27 ID_SD EEPROM config I2C data

28 ID_SC EEPROM config I2C clock

29 GPIO05 Digital I/O GPIO_40 P1.15

30 GND Ground GND GND

31 GPIO06 Digital I/O GPIO_39 P1.11

32 GPIO12 Digital I/O GPIO_38 P1.10

33 GPIO13 Digital I/O GPIO_37 P1.03

34 GND Ground GND GND

35 GPIO19 Digital I/O GPIO_36 P1.02

36 GPIO16 Digital I/O GPIO_35 P1.01

37 GPIO26 Digital I/O GPIO_34 P1.08

38 GPIO20 Digital I/O GPIO_33 P1.09

39 GND Ground GND GND

40 GPIO21 Digital I/O GPIO_32 P0.11

Description Schematic

signal

nRF52

net name

GPIO_42 P0.26 Should only be used to read or simulate

GPIO_41 P1.14 Should only be used to read or simulate

Alternate functions and notes

If the solder bridge is cut this pin is left floating.

HAT EEPROMs. See section 4.3.3.

Powering considerations

There are two voltage nets used in the Raspberry Pi interface - 3V3_PI and 5V. Both the 3V3_PI and 5V nets can be used to power HATs, but should not be used when connecting to a Raspberry Pi. For

more information, see section 3.1.6.

⚠ The 3V3_PI power net must not be connected to the 3.3 V supply when connected to a Raspberry

Pi board. It could damage both the boards.

UART

The Raspberry Pi interface provides two pins that can be used for UART communications GPIO14 and GPIO15. In UART communications, signals are always connected RX <-> TX and vice versa. This

means that on a Raspberry Pi board GPIO14 will be TX and on a HAT it will be RX. To support talking

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EVK-NINA-B3 - User guide

J20

UART

U10

C54

Flash Memory

VDD_IO QSPI_D3 QSPI_CLK QSPI_D0

U10

GND

CTS

RTS

RXD

TXD

1

J20

5

346

5

8

7

TRACE_D1

TRACE_D2

TRACE_D0

TRACE_D3

TRACE_CLK

GND

N/C

J21

TRACE_D0

N/C

SWDCLK

RESET_N

SWDIO

GND

N/C

GND

VDD_IO

19

20

1 2

Additional Interfaces

Trace

J21

QSPI_D2

QSPI_D1

GND

QSPI_CS

External Flash

Debug and Trace

UART

1 2

to both HATs and Pi boards, the zero Ω resistors - R57, R58, R59 and R60 can be used to toggle the NINA TX and RX pins between GPIO14 and GPIO15. If a NINA-B30 is used, this switch can also be made in the software. By default, the EVK-NINA-B3 will be configured to simulate a HAT, and GPIO14 is connected to the NINA UART_RXD pin and GPIO15 is connected to the NINA UART_TXD pin.

EEPROM support

The Raspberry Pi interface supports a unique EEPROM solution to store the HAT specific GPIO configurations on the HAT board, to be read by the Raspberry Pi before configuring its GPIOs. The two pins used for this - ID_SD and ID_SC, are connected to the NINA-B3 module. The NINA module can thus either read the GPIO configuration from a HAT, or simulate an EEPROM and send configurations to a connected Pi. This requires a NINA-B30 module and a custom built application.

It is not mandatory to use this EEPROM solution; if not used, the two NINA pins GPIO_42 and GPIO_41 should be left unconfigured.

Two pull-up resistors - R44 and R50, can be added to the I the evaluation board by default.

2

C lines if needed. They are not mounted on

Visit https://github.com/raspberrypi/hats/blob/master/designguide.md

for more information on the

ID EEPROM specification.

4.4 Additional Interfaces

In addition to the normal interfaces most commonly used, there are a few expansion options available for the user. These extra interfaces require some modifications of the EVB before they can be used. Figure 19 shows the additional interfaces – that require some soldering before use.

Figure 19: Additional interfaces and expansion options

Connector annotation

Pin number

Schematic net name nRF52 pin Description

U10 1 QSPI_CS/GPIO_51 P0.17 Chip select input signal, active low

2 QSPI_D1/GPIO_48 P0.21 MISO in single SPI mode, or data I/O signal in dual/quad mode

3 QSPI_D2/GPIO_49 P0.22 Data I/O signal in quad mode (optional)

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Connector annotation

J20 1 MCU_TXD - Interface MCU data output signal

J21 1 VDD_IO - Supply net for LEDs and peripherals connected directly to the

Table 14: Pinout of the additional interfaces

Pin number

4 GND GND Ground

5 QSPI_D0/GPIO_50 P0.20 MOSI in single SPI mode, or data I/O signal in dual/quad mode

6 QSPI_CLK/GPIO_52 P0.19 Chip clock input signal, up to 32 MHz supported

7 QSPI_D3/GPIO_47 P0.23 Data I/O signal in quad mode (optional)

8 VDD_IO - Supply net for LEDs and peripherals connected directly to the

2 MCU_RXD - Interface MCU data input signal

3 MCU_RTS - Interface MCU flow control output signal

4 MCU_CTS - Interface MCU flow control input signal

5 GND GND Ground

2 SWDIO SWDIO Serial Wire Debug data I/O signal

3 GND GND Ground

4 SWDCLK SWDCLK Serial Wire Debug clock signal

5 GND GND Ground

6 TRACE_D0/SWO/

7 N/C - Not connected

8 N/C - Not connected

9 GND GND Ground

10 RESET_N P0.18 NINA reset signal, active low

11 N/C - Not connected

12 TRACE_CLK/GPIO_45 P0.07 Parallell trace clock signal

13 N/C - Not connected

14 TRACE_D0/SWO/

15 GND GND Ground

16 TRACE_D1/GPIO_46 P0.12 Parallell trace data signal

17 GND GND Ground

18 TRACE_D2/GPIO_32 P0.22 Parallell trace data signal

19 GND GND Ground

20 TRACE_D3/GPIO_33 P0.23 Parallell trace data signal

Schematic net name nRF52 pin Description

NINA module. Supply for the external memory chip.

P1.00 Serial trace data signal / Parallell trace data signal

GPIO_8

P1.00 Serial trace data signal / Parallell trace data signal

GPIO_8

Extra memory – external Flash

The NINA-B3 series module supports adding extra memory outside of the module. This memory space can be used to store data and/or expand the application code size. QSPI and Quad Serial Peripheral Interface is used by the NINA-B3 module to communicate with the external flash memory. Information about the QSPI interface, the supported modes and supported clock frequencies can be found in the NINA-B3 series Data sheet [1].

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EVK-NINA-B3 - User guide

The signals used in the QSPI interface are shared with other interfaces and GPIO functions. These have been routed both to the flash memory footprint on the bottom side of the evaluation board and to the GPIO pin header J14 (Raspberry Pi interface). To reduce the risk of interference on the QSPI interface, solder bridges have been added to the signal lines. The bridges should be cut to isolate the copper traces routed to J14 before soldering the flash memory to the board. Figure 20 shows where to cut the solder bridges.

Figure 20: Cut these solder bridges before soldering the external memory

The PCB footprint has been designed for SOIC-8 packages with 5.3 mm body width. A 0402 size decoupling capacitor footprint has also been added (labeled C54 in the schematics), typically 100 nF should be used.

Extra USB to UART interface

If the evaluation board is connected to a PC using the USB connector J8, two serial COM ports will be available. The COM port labeled “JLink CDC UART” (on a Windows PC) is not normally connected to anything but is routed as a 4-pin UART interface to the pin header J20. This interface could be connected to a secondary UART interface on the NINA-B3 module, or to a UART interface on an Arduino shield etc.

A secondary UART can, as of NINA-B31-SW3.0.0, be configured using the u-connectXpress

AT+UMRSCFG command, see the u-connect AT commands manual [5].

CPU trace interface

The Arm Cortex-M4Fprocessor of the NINA-B3 modules supports tracing of CPU instructions via Cortex Debug+ETM connector 20-pin, 50 mil pitch connector. This extended connector has the same features as J12, but also allows for instruction trace operations via the Embedded Trace Macrocell (ETM) of the Cortex-M4 microcontroller inside the NINA-B3 module. This requires a special external debugger. Note that the 50 mil pitch pin header is not soldered onto the evaluation board by default.

UBX-17056481 - R07 Interfaces and peripherals Page 31 of 41 C1-Public

EVK-NINA-B3 - User guide

R1

C11

SW2

C10

SW1

C9

SW0

J2

J1

C49

SW3

C6

DS3

DS4

R41

D1

J8

J18

R12

R13

C12

C15

X2

C14

C1

R21

C4

R17

C33

R53

C53

D3

DS9

R19

R20

U3

R28

R29

C44

C43

R14

C42

C41

R15

R3

R2

X1

C34

C16

U2

R56

D2

D6

DS8

R39

U7

C28

R33

C21

C22

R55

R54

R61

L1

C50

DS2

DS7

R11

R40

U5

R45

C35

R25

Q2

R52

C3

F1

DS1

DS5

R10

R7

J19

J12

C26

R42

R36

R51

C2

C5

J5

DS6R8

R37

R30

U6

C36

R32

R34

Q1

Q3

U1

J17

C37

R9

C7

C25

R24

R22

R31

R38

C27

C38

C39

Q4

R43

R5

J11

C19

C48

R47

R48

C29

C30

C32

C40

L2

C51

U9

C31

R16

C55

C24

R23

R18

J9

R49

R46

J20

J7

BT1

C47

C20

C23

C45

D4

U4

U8

C46

C17

C18

R4

J22

R27

R35

C13

J3

J4

J10

C52

D8

R6

R26

R60

R58

R57

M1

C8

R59

J14

J16

1

2

1

2

1

2

1

2

1

2

TP9

TP26

TP24

TP27

TP38

TP8

TP35

TP17

J21

TP18

TP13

TP19

TP14

TP16

TP12

TP5

TP4

TP6

TP7

TP15

C56

SB3

SB1

SB6

C54

R44 R50

R62

R63

TP1

SB4

U10

SB5

SB2

TP10

TP11

TP2

2

1

Top view

Bottom view (mirrored)

Appendix

A Schematics

UBX-17056481 - R07 Appendix Page 32 of 41 C1-Public

CURRENT MEASU REMENT AND NINA POWE R SUPPLY

VDD_NI NA VCC_IO VDD_ IO

E

DNI

R6

VCC

R4

0R

J22

21

43

65

DEFAULT JUMPE R CONFIG: POS 1-3 AND 2-4 SEE THE EVK-NINA- B3 USE R GUIDE FOR

CONFIGURA TION OPT IONS

D

GPIO_4 7

BI

GPIO_4 8

BI

GPIO_4 9 GPIO_4 6

BI

GPIO_5 0

BI

GPIO_5 1

BI

GPIO_5 2

BI

USB_DP

BI

USB_DM

BI

GPIO_1

BI

GPIO_2

BI

GPIO_3

BI

GPIO_4

BI

GPIO_5

BI

SWITCH _1

BI

GPIO_8

BI

GPIO_3 2

BI

GPIO_3 3

BI

GPIO_3 4

BI

GPIO_3 5

BI

GPIO_3 6

BI

SWDCLK

C

VBUS_N INA

B

(QSPI _D3)

(QSPI _D1)

(QSPI _D2)

(QSPI _D0)

(QSPI _CS)

(QSPI_ CLK)

(RED)

VCC

VCC_IO

(GREEN / BOOT)

(BLUE/ SWO/

TRACE_ D0)

10%

C52

C17

100N

(TRACE _D2)

10%

(TRACE _D3)

C18

100N

GPIO_50

GPIO_51

47

GPIO_47

GPIO_48

GPIO_49

ublox_nina_b3

SWDCLK

GND_12

11

30

GND_30

ANT

292827

GPIO_29

GND_14

141213

15

GPIO_28

SWDIO

5251504948

53

54

55

GND_53

USB_DP

GPIO_52

USB_DM

1

GPIO_1

2

GPIO_2

3

GPIO_3

4

GPIO_4

5

GPIO_5

6

GND_6

7

GPIO_7

8

GPIO_8

9

VCC_IO

10

VCC GPIO_16

31 32

GPIO_32

33

GPIO_33

34

GPIO_34

35

GPIO_35

36

GPIO_36

NFC_2

NFC_1

26

GPIO_27

GND_26

GPIO_2 9

GPIO_2 8

464544

GPIO_44

GPIO_45

GPIO_46

GPIO_21

RESET_N

GPIO_41

43

GPIO_43

GPIO_25

GPIO_24

GPIO_23

GPIO_22

GPIO_20

GPIO_18

GPIO_17

GPIO_42VBUS

GPIO_40

GPIO_39

GPIO_38

GPIO_37

12345678

J19

21

RESET_ N SWDIO SWDCLK GPIO_8 SWITCH _1 GPIO_1

UART_D TR UART_D SR UART_R TS UART_C TS UART_T XD UART_R XD

JUMPER H EADERS USED TO CONNECT GPIOS T O VARIOUS BOAR D FUNCTIONS ALL POSISTION S MOU NTED BY DEFAULT

VDD_IO VDD_MCU

R18

0R

DNI

R22

0R

DNI

0

GPIO_2 7

C24

330P 10%

R23

0R

0

J11

C51

330P

DNI

10%

R24

0

0R

C25

330P 10%

1 2 3 4

NFC ANTENNA

CONNECTOR

BI

1 2 3 4

SWDIO_ I SWDCLK _I BLUE RESET_ N_I

10%

(TRACE _D1)

GPIO_4 5

GPIO_4 4

GPIO_4 3

M1

BI

(TRACE _CLK)

UART_D TR_I UART_D SR_I UART_R TS_I UART_C TS_I UART_T XD_I UART_R XD_I

C47

100N

10%

25 24 23 22 21 20 19 18 17 16

42 41 40 39 38 37

GPIO_2 5 GPIO_2 4 UART_R XD UART_T XD UART_C TS UART_R TS RESET_ N SWITCH _2 UART_D SR UART_D TR

GPIO_4 2 GPIO_4 1 GPIO_4 0 GPIO_3 9 GPIO_3 8 GPIO_3 7

SWDIO

BI

C19

100N

BI

NOTE! DNI = NOT MOUNTED

BI

BIBI

PRODUCT VARIANTS

BOM B311: NINA-B311 WITH ANTENNA PIN: MOUNT NINA-B311 ON M1

BOM B312: NINA-B311 WITH INTERNAL ANTENNA:

8 2 3 4 5

1

14

10

19

10%

C20

1

3

5

7

9

11

J9

1

3

5

7

9

11

ti_txs0104epwr

OE

A1 B1

A2

A3

A4

VCCA

VCCB

GND=GN D

10%

C48

100N

TXS0108

OE

1

A1

3

A2 B2

4

A3

5

A4

6

A5

7

A6

8

A7

9

A8

2

VCCA

VCCB GND

100N

RESET_ N_I

2

43

SWDIO_ I

4

65

SWDCLK _I

6

87

BLUE

8

109

GREEN

10

1211

RED

12

21

UART_D TR_I

2

43

UART_D SR_I

4

65

UART_R TS_I

6

87

UART_C TS_I

8

109

UART_T XD_I

10

1211

UART_R XD_I

12

U9

13

SWDIO_ LVL

12

SWDCLK _LVL

B2

11

SWO_LV L

B3

10

RESET_ N_LVL

B4

TO INTERFACE M CU

U4

20

UART_D TR_LVL

B1

18

UART_D SR_LVL

17

UART_R TS_LVL

B3

16

UART_C TS_LVL

B4

15

UART_T XD_LVL

B5

14

UART_R XD_LVL

B6

13

B7

12

B8

TO FTDI CHI P

11

BI

LEVEL SHIFTERS

E

D

C

B

MOUNT NINA-B312 ON M1 J10 DNI

A A

BOM_B312=DNI

1

ADD2GND

GND=GN D

J10

ANTENNA U .FL CONNECTOR

ANT

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NINA MODULE

A3

EVB-NINA-B3

PAGE 1 OF 6

VERSION :PROJECT :

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03

B

1

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E

D

E

D

THIS PAGE IS INTENTIONALLY LEFT BLANK DUE TO LICENSE AGREEMENTS

C

B

A A

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03

B

1

B

12345678

SB1

QSPI_C LK

E

NOTE! DNI = NOT MOUNTED

QSPI_C S

QSPI_D 0

QSPI_D 1

QSPI_D 2

QSPI_D 3

GPIO_5 2

BI

GPIO_5 1

BI

GPIO_5 0

BI

GPIO_4 9

BI

GPIO_4 7

BI

GPIO_5 2_SB

SB2

GPIO_5 1_SB

SB3

GPIO_5 0_SB

SB4

GPIO_4 8_SBGPIO_4 8

SB5

GPIO_4 9_SB

SB6

GPIO_4 7_SB

BI

E

SOLDER BRIDGES

VDD_IO

U10

25

GPIO_4 9

D

VBUS_M CU

R51

1%

100K

C

B

BI

USB_HU B_DM

USB_HU B_DP

8P2

+/-0.5 P

X2

24.000 MHZ 30PPM

+/-0.5 P

C15C14

8P2

HUB_DE TECT

R52

100K 1%

XTAL1 XTAL2

VDD_MC U

C53

100N 10%

U2

19

USBDM_UP OCS2_N

20

USBDP_UP

21

XTALOUT

22 9

XTALIN

23

PLLFILT

24

RBIAS

R53

12K

1%

VDD_MC U

C16

100N 10%

VDD_MC U

R61

10K 1%

181

16

SMBCLK

RESET_N

SUSP_IND

VBUS_DET

microchip_usb2422

USBDP_DN2

USBDM_DN2

USBDP_DN1

USBDM_DN1

VDD33_1 VDD33_18

534

2 17

39R

VDD_MC UVDD_MC U

R55

100K 1%

NON_RE M0 NON_RE M1 CFG_SE L

131415

SMBDATANC

PRTPWR2

CRFILT

VDD33_9

OCS1_N

PRTPWR1

12 11 10

8 7

100K

C21 C22

1U1U

10%

R54 R56

1%

6

DHSD_P

DHSD_N CBUS3

R2

5%

DFSD_P

DFSD_N

5%

R3

BI

BOOT STRAPPING CONFIG

100K 1%

USB_FT DI_DM USB_FT DI_DP

VDD_MC U

C45

4U7 20%

C23

100N 10%

10

9 8

11

C46

100N 10%

U8

3V3OUT

USBDM

USBDP

RESET_N

12

VCC

ftdi_ft231x

GND_3

GND_13

3

13

20

VCCIO

GND_21

21

RTS_N

CTS_N

DTR_N

DSR_N

DCD_N

CBUS0

CBUS1

CBUS2

CBUS3

TXD

RXD

RI_N

GPIO_4 7

GPIO_5 2 GPIO_5 1

17

UART_R XD_LVL

1

UART_T XD_LVL

19

UART_C TS_LVL

6

UART_R TS_LVL

18

UART_D SR_LVL

4

UART_D TR_LVL

5 2

15

CBUS0

14

CBUS1

7

CBUS2

16

3

SIO2

7

SIO3

6

SCK

1

CE_N

4

GND

DNI

200 MIL PITCH 8 -PIN SOP FOOTPRINT F OR EXTERNAL ME MORY

BI

RXLED# B LINKS WHEN RECEIVING D ATA VIA USB, I E. NINA RX

SO/SIO1SI/SIO0

VDD

BI

TP4

TP6

RXLED#

BI

TXLED#

TP7

TP5

GPIO_4 8GPIO_5 0

D

8

C54

100N 10%

DNI

C

B

A A

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EVB-NINA-B3

PAGE 3 OF 6

VERSION :PROJECT :

PCB_VER.:

ICM:

03

B

1

12345678

5V

3V3

BI

ARDUINO I NTERFACE

GPIO_2 5 GPIO_2 4 GPIO_2 7 SWITCH _2 UART_D SR UART_D TR

VDD_IO

J1

1

2

3

RESET_ N

3

4

E

5

6

7

8

J2

1

2

3

4

5

6

D

VDD_IO

J12

21

1

3

5

7

SWDIO

2

43

SWDCLK

4

65

GPIO_8 GPIO_8

6

87

8

109

RESET_ N

109

CORTEX DEBUG

C

DEBUG C ONNECTORS

VIN

J4

GPIO_5

10

9 8 7 6 5 4 3 2

1

GPIO_4

9 8 7

GPIO_4 5

6

GPIO_8

5

GPIO_3

4

GPIO_2

3

GPIO_4 6

2

GPIO_3 3

1

BI

BOOT JUMPER

J18

DNI

2 1

SWITCH _1

RESET_ N

BI

J3

GPIO_2 9

8

8 7 6 5 4 3 2

1

GPIO_2 8

7

GPIO_3 2

6

GPIO_1

5

UART_R TS

4

UART_C TS

3

UART_T XD

2

UART_R XD

1

BI

SWITCH _1

BI

C10

1

3

10%

C9

100N

430 481 031 816

1

3

10%

DNI

100N

430 451 031 836

SW0

2

4

RESET

SW1

2

4

SWITCH 1

BI

SWITCH _2

VDD_MC U

IMCU_B OOT

R41

10K 1%

BUTTONS

430 481 031 816

TP26TP24

1

3

10%

DNI

100N

SWITCH 2

430 481 031 816

TP27

1

3

10%

DNI

C49 C11

100N

MCU BOOT

DNI

SW3

SW2

2

4

2

4

E

D

VDD_IO

J21

21

BI

1

3

5

7

9

11

13

15

SWDIO

2

43

SWDCLK

4

65

6

87

8

109

RESET_ N

10

1211

GPIO_4 5

12

1413

GPIO_8

14

1615

GPIO_4 6

16

1817

GPIO_3 2

181917

2019

GPIO_3 3

20

BI

DNI

CORTEX D EBUG + ETM

R44

DNI

I2C PULL UP S

UART_T XD

BI

UART_R XD

BI

R50

R63

R62

DNI

GPIO_5 GPIO_4

GPIO_4 2 GPIO_4 1

R57

RASP_T XD

DNI

R58

RASP_R XD

0R

R59

RASP_T XD

0R

R60

RASP_R XD

DNI

3V3_PI

J14

GPIO_4

BI

GPIO_5 UART_R TS

BI

UART_C TS

BI

GPIO_5 2_SB GPIO_5 1_SB

BI

GPIO_4 8_SB

BI

GPIO_4 7_SB GPIO_4 5

BI

GPIO_4 2 GPIO_4 1

BI

GPIO_4 0 GPIO_3 9

BI

GPIO_3 7 GPIO_3 6

BI

GPIO_3 4

1

3

5

7

9

11

13

15

17

19

21

23

25

27

29

31

33

35

37

39

DNI

5V

21

2

43

4

65

6

87

8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

RASP_T XD

109

RASP_R XD

1211

RESET_ N

1413 1615

GPIO_5 0_SB

1817

GPIO_4 9_SB

2019 2221

GPIO_4 6

2423

GPIO_4 4

2625

GPIO_4 3

2827 3029 3231

GPIO_3 8

3433 3635

GPIO_3 5

3837

GPIO_3 3

4039

GPIO_3 2

BI

C

RX/TX SELECTION

RASPBERRY P I INTERFACE

VDD_IO

B

GREEN

BI

RED

BI

BLUE

BI

DS9

wurth_150141m173100

B

1

R

A

G

74LVC3G07

1

VCC=VD D_IO;GND=G ND

2

3

4

R19 R20 R21

2K7

71

53

26

1K01K0 5%

5%5 %

BI

BI BI

A A

NOTE! DNI = NOT MOUNTED

LEDS

74LVC3G07 74LVC3G07

UART_C TS_I CTS_LE D

UART_D TR_I

VCC=VD D_IO;GND=G ND

71

1

53

RTS_LE DUART_R TS_I

1

26

DTR_LE D

1

VDD_IO

A

DS1

GREEN

C A

1K0 1K0

5% 5%

DS5

DS2

ORANGE

C

R11R10

1K0

ORANGE

C A

1K0

5%

BI

UART_R XD_I

UART_T XD_I

UART_D SR_I

U7U3 U5

71

1

53

1

26

1

VCC=VD D_IO;GND=G ND

RXD_LE D

TXD_LE D

DSR_LE D

DS8

DS7

GREEN

ORANGE

1K0 5%

C A

R39R40

1K0 5%

C A

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DS6

GREEN

C A

R8R7

5%

DRAWING TITLE :

HEADERS & BUTTONS

A3

EVB-NINA-B3

PAGE 4 OF 6

VERSION :PROJECT :

PCB_VER.:

ICM:

03

B

1

B

E

EXTERNAL SU PPLY

D

IF USED, T HE 5V NET MUST BE SUPPLIED

BY AN EX TERNA L SOURCE, USB ETC.

5-12 V

CON_PWR_03_SWITCH

VBAT VB AT

3V

100U

BT1

J5

20%

5V

VIN

1 2 3

VBAT

C56C55

DNI

D2

CA

DCDC_IN

F1

FUSE

21

J17

CATAN

D6

COIN C ELL BATTERY AT 3V

12345678

L1

2U2 30 %

C50

4U7 10%

10%

C3

C2

10U

100N

D3

CA

11

PVIN_1

12

PVIN_2

10

AVIN

SW_1

SW_2

SW_3

VOS

13

EN

9

SS/TR

10%

8

C5

3N3

DEF

7

FSW

PG

FB

AGND

PGND_1

PGND_2

L2

2U2 20 %

1

2

3

14

4

5

6

15

16

U1TPS6213X

3.3V REGULATED

C7

22U

R5

100K 1%

10%

BATTERY PRO TECTI ON: NFC CAN CAUSE R EVERSE CURRENT FLO W

GND=GND

62132 3 .3V VERSION

3V3

VBAT 3V3_P I

D4

J7

2121

1

2

CA

43

3

4

65

5

6

87

7

8

109

9

10

1211

12

11

POWER S OURCE SELECTOR

VDD_NI NA

E

VDD_MC U

D

C

J8

1

VUSB

USB MICRO B

2

DM

3

DP

4

N.C.

5

GND

SGND=G NDA

SUSB_M ICRO_B_4TH GND

R1

10M

5%

C6

GNDA

100N

B

10%

TP35

USB_DM _MCUCON USB_DP _MCUCON

TP38

TP8

TP9

USBLC6 2SC6

I/O1 I/O1 I/O2 I/O2

2

VBUS_M CUVBUS_M CU

D1

61 43

5

VCCGND

USB_HU B_DM

USB_HU B_DP

BI

J16

VUSB

USB MICRO B

DM

DP

N.C.

GND

SGND=A GND

SUSB_M ICRO_B_4TH GND

10%

C1

100N

GNDA

USB

1 2 3 4 5

100N

R26

C8

VBUS_N INA

USB_DM _CON

5%10M

10%

TP2

TP1

USBLC6 2SC6

I/O1 I/O1 I/O2 I/O2

2

VBUS_N INA

D8

61 43

5

VCCGND

C13

USB_DM _RES USB_DP _RESUSB_DP _CON

10%

100N

TP10

TP11

39R

R27

5%

R35

USB_DM

5%

USB_DP

BI

'ZERO V OLT DIODE' - PROTECTS FROM BACK CURRENT ON VBUS LINES

5V 5V

P_CHANNEL _MOSFET

DMG2305UX

21

4

E2 C2

5 2

A A

BASE_1

5%10K

6

3

B1

1

E1C1

VBUS_M CU

P_CHANNEL _MOSFET

DMG2305UX

3

D

G S

5%

47K

R25

R36R9

10K

5%

4

5 2

BASE_2

6

Q3Q1

E2 C2

B2

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POWER SUPPLY

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EVB-NINA-B3

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EVK-NINA-B3 - User guide

B Glossary

Abbreviation Definition

API Application programming interface

CTS Clear To send

EVK Evaluation kit

GND Ground

GPIO General-Purpose Input/Output

LED Light-Emitting Diode

MCU Micro controller unit

MSD Mass storage device

NFC Near Field Communication

U.FL Coaxial RF connector

USB Universal serial bus

RTS Request To send

SDK Software development kit

SPA Serial port application

UART Universal Asynchronous Receiver/Transmitter

Table 15: Explanation of the abbreviations and terms used

UBX-17056481 - R07 Appendix Page 38 of 41 C1-Public

EVK-NINA-B3 - User guide

Revision history

Revision Date Name Comments

R01 07-Feb-2018 cmag, ajoh, kgom Initial release.

R02 6-Jul-2018 kgom Included reference to NINA-B31 Getting Started guide in section 2.2.1.

R03 13-Sep-2018 mape

Windows 10 host (section 2.1).

R04 16-Apr-2019 ajoh, fbro Included information about the EVK-NINA-

2.2. Added information about debugging options (section 2.2.2.2 current consumption (section 2.3) and additional interfaces (section 4.4).

R05 23-Sep-2019 flun Clarified information about RGB LED status in Table 10 (section 4.1).

R06 7-Jul-2020 mape Removed references to u-connectScript. Improved EVK-NINA-

instructions in chapter 2.2.2. Added information abo UART in u-connectXpress (4.4.2).

R07 7-Dec-2020 mape Corrected formatting in Table 10

section 1.1, added schematics, and included other editorial updates.

UBX-17056481 - R07 Revision history Page 40 of 41

C1-Public

EVK-NINA-B3 - User guide

Contact

For complete contact information, visit us at www.u-blox.com.

u-blox Offices

North, Central and South America

u-blox America, Inc.

Phone: +1 703 483 3180 E-mail: info_us@u-blox.com

Regional Office West Coast:

Phone: +1 408 573 3640 E-mail: info_us@u-blox.com

Technical Support:

Phone: +1 703 483 3185 E-mail: support@u-blox.com

Headquarters Europe, Middle East, Africa

u-blox AG

Phone: +41 44 722 74 44 E-mail: info@u-blox.com Support: support@u-blox.com

Asia, Australia, Pacific

u-blox Singapore Pte. Ltd.

Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com

Regional Office Australia:

Phone: +61 2 8448 2016 E-mail: info_anz@u-blox.com Support: support_ap@u-blox.com

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Phone: +86 21 6090 4832 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

Regional Office China (Shenzhen):

Phone: +86 755 8627 1083 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

Regional Office India:

Phone: +91 80 405 092 00 E-mail: info_in@u-blox.com Support: support_in@u-blox.com

Regional Office Japan (Osaka):

Phone: +81 6 6941 3660 E-mail: Support: support_jp@u-blox.com

Regional Office Japan (Tokyo):

Phone: +81 3 5775 3850 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com

Regional Office Korea:

Phone: +82 2 542 0861 E-mail: info_kr@u-blox.com Support: support_kr@u-blox.com

Regional Office Taiwan:

Phone: +886 2 2657 1090 E-mail: info_tw@u-blox.com Support: support_tw@u-blox.com

info_jp@u-blox.com

UBX-17056481 - R07 Contact Page 41 of 41 C1-Public

u-blox EVK-NINA-B3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Abstract

Document information

Contents

1 Product description

1.1 Overview

1.2 Kit includes

1.3 Key features

1.4 EVK-NINA-B3 block diagram

1.5 Connectors

2 Setting up the evaluation board

2.1 Evaluation board setup

2.2 Starting up

EVK-NINA-B31x

2.2.1.1 General usage

2.2.1.2 u-connect software

EVK-NINA-B30x

2.2.2.1 Nordic Semiconductor SDK

2.2.2.2 Software debug options

2.3 Measuring current consumption

Using an ampere meter

Using a volt meter

Using an external power supply or power analyzer

3 Board configuration

3.1 Powering options

Selecting the power configuration jumpers

Default power configuration, 3.3 V

Battery powered, 3 – 1.7 V

Battery powered with protection diode, 2.7 – 1.7 V

External supply, 3.6 – 1.7 V

Raspberry Pi HAT

3.2 Disconnecting NINA signals from board peripherals

4 Interfaces and peripherals

4.1 Buttons and LEDs

4.2 Arduino interface

Arduino shield compatibility

4.3 Raspberry Pi compatible interface

Powering considerations

UART

EEPROM support

4.4 Additional Interfaces

Extra memory – external Flash

Extra USB to UART interface

CPU trace interface

NINA MODULE

INTERFACE MCU

HUB, FTDI AND FLASH

POWER SUPPLY

B Glossary

Related documents

Revision history

Contact