ST X-NUCLEO-IDB05A2 User manual

Introduction

The X-NUCLEO-IDB05A2 Bluetooth low energy expansion board is based on the BlueNRG-M0 BLE network processor module.

The BlueNRG-M0 is Bluetooth v4.2 compliant, FCC and IC certified (FCC ID: S9NBNRGM0AL; IC: 8976C-BNRGM0AL). It

supports simultaneous master/slave roles and can behave as a Bluetooth low energy sensor and hub device at the same time.

The BlueNRG-M0 provides a complete RF platform in a tiny form factor, with integrated radio, antenna, high frequency and LPO

oscillators.

The X-NUCLEO-IDB05A2 is compatible with the ST morpho (not mounted) and Arduino UNO R3 connector layout.

The X-NUCLEO-IDB05A2 interfaces with the STM32 microcontroller via the SPI pin and allows changing the default SPI clock,

SPI chip select and SPI IRQ by replacing a resistor on the expansion board.

Figure 1. X-NUCLEO-IDB05A2 expansion board

Getting started with X-NUCLEO-IDB05A2 BLE expansion board based on the

BlueNRG-M0 module for STM32 Nucleo

UM2700

User manual

UM2700 - Rev 1 - April 2020

For further information contact your local STMicroelectronics sales office.

www.st.com

1Getting started

1.1 Overview

The main features of the X-NUCLEO-IDB05A2 expansion board are:

•STM32 Nucleo expansion board based on the BlueNRG-M0 Bluetooth v4.2 compliant, FCC and IC certified

module (FCC ID: S9NBNRGM0AL; IC: 8976C-BNRGM0AL)

•BlueNRG-M0 main features:

–Embedded Bluetooth low energy protocol stack (GAP, GATT, SM, L2CAP, LL, RFPHY)

– Embedded BlueNRG-MS network processor

– On-board chip antenna

• Small form factor: 11.5 mmx13.5 mm

• Equipped with Arduino UNO R3 connector

• Scalable solution capable of cascading multiple boards for larger systems

• Free comprehensive development firmware library and samples for BlueNRG-MS, compatible with

STM32Cube firmware

• RoHS compliant

1.2 Hardware requirements

The X-NUCLEO-IDB05A2 expansion board can be plugged onto any STM32 Nucleo, although complete testing

has only been performed using the NUCLEO-L053R8 and NUCLEO-F401RE development boards. To function

correctly, the X-NUCLEO-IDB05A2 must be connected to the STM32 Nucleo board as shown below.

Figure 2. X-NUCLEO-IDB05A2 and STM32 Nucleo stack

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Getting started

UM2700 - Rev 1 page 2/18

1.3 System requirements

To use the STM32 Nucleo development boards with the X-NUCLEO-IDB05A2 expansion board, you need:

•a Windows PC/laptop (Windows 10 or above) to install the firmware package (X-CUBE-BLE1)

• 128 MB of RAM

• 40 MB of hard disk free space

• a type A to Mini-B USB cable to connect the STM32 Nucleo board to the PC

• an STM32 Nucleo development board (NUCLEO-F401RE or NUCLEO-L053R8)

• an X-NUCLEO-IDB05A2 expansion board

1.4 Board setup

Step 1. Connect the jumper on J1 connector.

Step 2. Connect the X-NUCLEO-IDB05A2 expansion board to the STM32 Nucleo development board as

shown in Figure 2.

Step 3. Power the STM32 Nucleo board via the Mini-B USB cable.

Step 4. Program the firmware in the STM32 MCU using the firmware example provided.

Step 5. Reset the board MCU using the reset button available on the STM32 Nucleo board.

The evaluation stack is ready to be used.

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System requirements

UM2700 - Rev 1 page 3/18

2Hardware description and configuration

2.1 Connection details

The BlueNRG-M0 module embedded in the X-NUCLEO-IDB05A2 expansion board can be connected to the

STM32 Nucleo development board through connectors CN5, CN6, CN8 and CN9.

Table 1. X-NUCLEO-IDB05A2 and NUCLEO-L053R8 connection details (left connector)

Signal name

NC IOREF RESET 3V3 5V GND GND VIN A0 A1 A2 A3 A4 A5

Connector name

CN6 Power CN8 Analog

Pin number

1 2 3 4 5 6 7 8 1 2 3 4 5 6

NUCLEO-L053R8 MCU port

PA0 PA1 PA4 PB0 PC1/PB9 PC0/PB8

X-NUCLEO-IDB05A2 expansion board signals

3V3 GND GND SPI_IRQ(1) SPI_CSN(1)

1. Alternative pin.

Table 2. X-NUCLEO-EEPRMA2 and NUCLEO-L053R8 connection details (right connector)

Signal name

D15 D14 AREF GND D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Connector name

CN5 Digital CN9 Digital

Pin number

10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

NUCLEO-L053R8 MCU port

PB8 PB9 PA5 PA6 PA7 PB6 PC7 PA9 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3

X-NUCLEO-IDB05A2 expansion board signals

GND

SPI_CLK(1)

SPI_MISO

SPI_MOSI

SPI_CSN(1)

SPI_IRQ(1)

SPI_EEPROM_nS

BlueNRG_RST

SPI_CLK(2)

1. Optional.

2. Alternative pin.

2.2 SPI and GPIO connection options

SPI and GPIO connection options between the STM32 and BlueNRG-MS hosted on the BlueNRG-M0 module

can be used for board operation in different configurations when several expansion boards are used and there is

a conflict of signals.

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Hardware description and configuration

UM2700 - Rev 1 page 4/18

Table 3. BlueNRG-MS interface (optional) with the STM32 Nucleo board

BlueNRG-MS signal BlueNRG-M0 pin Default STM32 port Optional STM32 port

BlueNRG-MS_IRQ 4 – SPI_IRQ PA0 PC7

To use the optional connection mount R8, unmount R1

BlueNRG-MS_CSn 10 – SPI_CS PA1 PB6

To use the optional connection mount R7, unmount R2

BlueNRG-MS_SCLK 7 – SPI_CLK PB3 PA5

To use the optional connection mount R6, unmount R4

2.3 Current measurements

To monitor the power consumption of the X-NUCLEO-IDB05A2 board, insert an ammeter probe between pins 1

and 2 of the jumper on the J1 connector.

Since the power consumption of BlueNRG-MS is very low during most of its operating time, an accurate

instrument in the range of a few μA may be required.

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Current measurements

UM2700 - Rev 1 page 5/18

2.4 X-NUCLEO-IDB05A2 component placement

Figure 3. X-NUCLEO-IDB05A2 component placement details

1. Arduino UNO R3 connector

2. Arduino UNO R3 connector

3. Arduino UNO R3 connector

4. Arduino UNO R3 connector

5. ST morpho connector (not mounted)

6. ST morpho connector (not mounted)

7. SPI EEPROM

8. BlueNRG-M0 module

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X-NUCLEO-IDB05A2 component placement

UM2700 - Rev 1 page 6/18

3Component description

3.1 BlueNRG-M0 module

The BlueNRG-M0 is an easy-to-use, Bluetooth v4.2 compliant, BLE master/slave network processor module. It

supports multiple simultaneous roles and can behave as a Bluetooth low energy sensor and hub device at the

same time.

Table 4. BlueNRG-M0 details

Feature Description

Sales type BlueNRG-M0

Package ECOPACK2

Operating voltage 1.7 to 3.6 V

3.2 SPI EEPROM

The M95640-R is a 64 Kbit serial SPI bus EEPROM with high-speed clock interface. The device can be used to

store the configuration parameters related to applications or settings of the BlueNRG-M0 module.

Table 5. SPI EEPROM details

Feature Description

Sales type M95640-RMC6TG

Package MLP8

Operating voltage 1.8 to 5.5 V

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Component description

UM2700 - Rev 1 page 7/18

4Formal notices required by the U.S. Federal Communications

Commission ("FCC")

Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause

harmful interference and void the user’s authorization to operate this equipment.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this

device may not cause harmful interference, and (2) this device must accept any interference received, including

any interference that may cause undesired operation.

This device uses, generates and radiates radio frequency energy. The radio frequency energy produced by this

device is well below the maximum exposure allowed by the Federal Communications Commission (FCC).

The X-NUCLEO-IDB05A2 expansion board embeds the BlueNRG-M0 certifed module (FCC ID:

S9NBNRGM0AL).

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Formal notices required by the U.S. Federal Communications Commission ("FCC")

UM2700 - Rev 1 page 8/18

5Formal notices required by the Industry Canada ("IC")

English:

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following

two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,

including interference that may cause undesired operation of the device.

French:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de

licence. Exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage,

et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est

susceptible d'en compromettre le fonctionnement.

The X-NUCLEO-IDB05A2 expansion board embeds the BlueNRG-M0 certifed module (IC: 8976C-BNRGM0AL).

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Formal notices required by the Industry Canada ("IC")

UM2700 - Rev 1 page 9/18

6Schematic diagrams

Figure 4. X-NUCLEO-IDB05A2 circuit schematic - ST morpho and Arduino UNO R3 connectors

PA1

PC6

PC2

PA9

GND

PB8

IOREF

PA8

GND

PA7

PB11/NC

GND

PA4

VIN

CN5

HEADER 10

Pass-Through: Female on

Bottom and Male on Top

Pass-Through: Female on

Bottom and Male on Top

Pass-Through:

Male on Bottom

and Female on

Top

Pass-Through:

Male on Bottom

and Female on

Top

Pass-Through:

Male on Bottom

and Female on

Top

Pass-Through:

Male on Bottom

and Female on

Top

PB9

NC/PF6

GND

PC12

PA7

PA13

PD8

E5V

PC9

PB1

PA3

PA10

PB10

PB6

PA5

PB15

PB8

RESET

PA4

PC8

VLCD/VBAT

PC10

RESET

PB4

PB12

NC/

PB10

CN9

HEADER 8

PB7

NC/PF4

GND

AGND

GND

PA1

PA0

PA5

BOOT0

PB6

PA14

U5V

VIN

PD2

PB5

PC0

PB2

PC7

PC0

NC/PF5

PA2

+3V3

29 29

NC/

PA3

CN10

HEADER 19x2

+3V3

PA9

PA11

PB4

PH1/PF1/PD1

PC13

PC1

NC/

PC15

AVDD

PB13

CN6

HEADER 8

PC1

GND

1 2

PC5

PC3

PC7

+5V

PC11

PB3

PB9

GND

PA15

PA6

PC4

PA10

+5V

Left morpho connector

AVDD

PA0

PA2

VDD

PB5

NC/PF7

PA12

GND

CN7

HEADER 19x2

PC14

PB0

IOREF

PH0/PF0/PD0

PB3

PA8

PA6

PB14

CN8

HEADER 6

PB0

13 14

Right morpho connector

Left Arduino connector Right Arduino connector

UM2700

Schematic diagrams

UM2700 - Rev 1 page 10/18

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