ST X-NUCLEO-IDB05A1 User manual

July 2015
DocID028033 Rev 1
1/16
www.st.com
UM1912
User manual
Getting started with X-NUCLEO-IDB05A1 BLE expansion board
based on the SPBTLE-RF module for STM32 Nucleo
Introduction
The X-NUCLEO-IDB05A1 is a Bluetooth Low Energy evaluation board based on BlueNRG-MS RF
module, SPBTLE-RF, to allow expansion of the STM32 Nucleo boards. The SPBTLE-RF module is FCC
(FCC ID: S9NSPBTLERF) and IC certified (IC: 8976C-SPBTLERF). The BlueNRG-MS is a very low
power Bluetooth Low Energy (BLE) single-mode network processor, compliant with Bluetooth
specification v4.1. X-NUCLEO-IDB05A1 is compatible with the ST Morpho and Arduino UNO R3
connector layout.
This expansion board can be plugged into the Arduino UNO R3 connectors of any STM32 Nucleo
board. The user can mount the ST Morpho connectors if required. The different expansion boards can
be easily stacked to allow evaluation of different devices with Bluetooth Low Energy connectivity.
The board has the following features:
On-board SPBTLE-RF module based on the BlueNRG-MS single mode BLE network processor
SPI EEPROM for parameter saving
Jumper at 3V3 for checking the current consumption of STM32 expansion board
Figure 1: Bluetooth Low Energy expansion board based on SPBTLE-RF module for STM32 Nucleo

Contents
UM1912
2/16
DocID028033 Rev 1
Contents
1Getting started................................................................................3
1.1 Hardware requirements....................................................................3
1.2 System requirements.......................................................................3
1.3 Setting up the board.........................................................................4
2Hardware description.....................................................................5
2.1 X-NUCLEO-IDB05A1 board.............................................................5
2.2 SPI and GPIO connection options....................................................6
2.3 Current measurement......................................................................7
2.4 X-NUCLEO-IDB05A1 component placement...................................7
3Component description .................................................................8
3.1 SPBTLE-RF module.........................................................................8
3.2 SPI EEPROM...................................................................................8
4Formal notices required by the U.S. Federal Communications
Commission ("FCC") ..............................................................................9
5Formal notices required by the Industry Canada ("IC") ............10
6Hardware schematic diagrams....................................................11
7Bill of material...............................................................................13
8Revision history ...........................................................................15

UM1912
Getting started
DocID028033 Rev 1
3/16
1 Getting started
This section describes the hardware requirements for the X-NUCLEO-IDB05A1 evaluation
board.
1.1 Hardware requirements
The X-NUCLEO-IDB05A1 is an expansion board for use with STM32 Nucleo boards. To
function correctly, the X-NUCLEO-IDB05A1 must be connected to the STM32 Nucleo
board as shown in Figure 2: "X-NUCLEO-IDB05A1 plugged into an STM32 Nucleo board
through the Arduino UNO R3 connector" below.
The STM32 Nucleo firmware and related documentation is available at
http://www.st.com/stm32nucleo
Figure 2: X-NUCLEO-IDB05A1 plugged into an STM32 Nucleo board through the Arduino UNO
R3 connector
The interconnection between the STM32 Nucleo and the X-NUCLEO-IDB05A1 has been
designed to permit the use of any STM32 Nucleo board, although complete testing has
been performed using the NUCLEO-L053R8 hosting the ultra-low power STM32, and the
NUCLEO-F401RE hosting the dynamic efficiency STM32.
1.2 System requirements
Using the Nucleo boards with the X-NUCLEO-IDB05A1 expansion board requires the
following software and hardware:
Windows PC (XP, Vista, 7, 8) to install the firmware package
USB type A to Mini-B USB cable to connect the Nucleo board to the PC
Installation of the board firmware package (order code: X-CUBE-BLE1) and the BlueNRG
graphical user interface utility on the user's PC requires the following:

Getting started
UM1912
4/16
DocID028033 Rev 1
128 MB of RAM
40 MB of hard disk space
The X-CUBE-BLE1 firmware and related documentation is available on www.st.com
1.3 Setting up the board
To set up the board, perform the following steps:
1. Check that the jumper on the J1 connector is connected. This jumper provides the
required voltage to the devices on the board
2. Connect the X-NUCLEO-IDB05A1 on the Nucleo board from the top as shown in
Figure 2: "X-NUCLEO-IDB05A1 plugged into an STM32 Nucleo board through the
Arduino UNO R3 connector"
3. Power the Nucleo board using the Mini-B USB cable
4. Program the firmware in the STM32 on the Nucleo board using the firmware example
provided
5. Reset the MCU board using the reset button available on the Nucleo board
6. The evaluation kit is ready to be used

UM1912
Hardware description
DocID028033 Rev 1
5/16
2 Hardware description
This section describes the X-NUCLEO-IDB05A1 features and provides information which
could be useful to understand the board schematic diagrams.
2.1 X-NUCLEO-IDB05A1 board
The board allows the user to test the functionality of the SPBTLE-RF module. The
SPBTLE-RF hosts the BlueNRG-MS, a very low power Bluetooth Low Energy (BLE) single-
mode network processor, compliant with Bluetooth specification v4.1. The module also
embeds the innovative BALF-NRG-01D3 (balun with integrated harmonic filter) and a chip
antenna.
Its functionality can be exploited using the firmware package contained in the X-CUBE-
BLE1. It is fundamental to program the microcontroller on the STM32 Nucleo board. Please
refer to user manuals UM1724 and UM1725, available on www.st.com.
The SPBTLE-RF module and the STM32 Nucleo board are connected through connectors
CN5, CN6, CN8 and CN9 (see Table 1: "Interconnection between STM32 Nucleo board
and X-NUCLEO-IDB05A1 left-side connectors" for details). The pins indicated with an
asterisk (*) allow an alternative pin for that specific function, i.e. SPI_IRQ could be moved
from CN8.1 to CN5.2.
Table 1: Interconnection between STM32 Nucleo board and X-NUCLEO-IDB05A1 left-side
connectors
Signal
Name
NC
IOREF
RESET
3V3
5V
GND
GND
VIN
A0
A1
A2
A3
A4
A5
Left connector
Connector
Name
CN6 Power
CN8 Analog
Pin#
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-IDB05A1
expansion board
3V3
GND
GND
SPI_IRQ (*)
SPI_CSN (*)

Hardware description
UM1912
6/16
DocID028033 Rev 1
Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO-IDB05A1 right-side
connectors
Signal
Name
D15
D14
AREF
GND
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Right connector
Connector
Name
CN5 Digital
CN9 Digital
Pin#
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-IDB05A1
expansion board
GND
SPI_CLK (Opt)
SPI_MISO
SPI_MOSI
SPI_CSN (Opt)
SPI_IRQ (Opt)
SPI_EEPROM_nS
BlueNRG_RST
SPI_CLK (*)
Opt = Optional connection.
2.2 SPI and GPIO connection options
Table 3: "BlueNRG-MS interface (optional) with the STM32 Nucleo board" shows the SPI
and GPIO connection options between the STM32 and BlueNRG-MS hosted on the
SPBTLE-RF module. These can be used for operation of the board in different
configurations in cases where different expansion boards are utilized and there is a conflict
of signals.
Table 3: BlueNRG-MS interface (optional) with the STM32 Nucleo board
BlueNRG-MS
Signal
SPBTLE-RF
Pin
Default
STM32
port
Optional STM32
port
BlueNRG-MS_IRQ
4 –SPI_IRQ
PA0
PC7
To use optional connection
mount R8, demount R1

UM1912
Hardware description
DocID028033 Rev 1
7/16
BlueNRG-MS
Signal
SPBTLE-RF
Pin
Default
STM32
port
Optional STM32
port
BlueNRG-MS_CSn
10 –SPI_CS
PA1
PB6
To use optional connection
mount R7, demount R2
BlueNRG-MS_SCLK
7 –SPI_CLK
PB3
PA5
To use optional connection
mount R6, demount R4
Refer to the schematic diagrams for details.
For the optional connections, modify the firmware for the correct use of the STM32
resources to be used.
2.3 Current measurement
To monitor the power consumption of the BlueNRG-MS X-NUCLEO-IDB05A1 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.
2.4 X-NUCLEO-IDB05A1 component placement
The following diagram shows the component placement on the X-NUCLEO-IDB05A1
board.
Figure 3: X-NUCLEO-IDB05A1 component placement details

Component description
UM1912
8/16
DocID028033 Rev 1
3 Component description
The board has the following devices.
3.1 SPBTLE-RF module
The SPBTLE-RF is an easy-to-use Bluetooth Low Energy module. It is based on the
BlueNRG-MS device, which is a very low power Bluetooth Low Energy (BLE) single-mode
network processor, compliant with Bluetooth specification v4.1. The SPBTLE-RF has the
following certifications:
FCC (FCC ID: S9NSPBTLERF)
IC (IC: 8976C-SPBTLERF)
The interface of the device to the STM32 Nucleo boards is through SPI interface and
GPIOs.
The SPBTLE-RF integrates a balun BALF-NRG-01D3 and a chip antenna. It embeds 32
MHz and 32.768 kHz crystal oscillators for the BlueNRG-MS.
The part numbers used to develop this application are shown in Table 4: "SPBTLE-RF
details".
Table 4: SPBTLE-RF details
Feature
Description
Sales type
SPBTLE-RF
Package
SMD 11 pin
Operating voltage
2 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 SPBTLE-RF module
The part numbers used to develop this application are shown in Table 5: "SPI EEPROM
details".
Table 5: SPI EEPROM details
Feature
Description
Sales type
M95640-RMC6TG
Package
MLP8
Operating voltage
1.8 to 5.5 V

UM1912
Formal notices required by the U.S. Federal
Communications Commission ("FCC")
DocID028033 Rev 1
9/16
4 Formal 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 authority 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 radiated radio frequency energy. The radio frequency
energy produced by this device is well below the maximum exposure allows by Federal
Communications Commission (FCC).
The X-NUCLEO-IDB05A1 contains FCC certified module SPBTLE-RF (FCC ID:
S9NSPBTLERF).

Formal notices required by the Industry Canada
("IC")
UM1912
10/16
DocID028033 Rev 1
5 Formal notices required by the Industry Canada
("IC")
English:
This device complies with Industry Canada licence-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-IDB05A1 contains IC certified module SPBTLE-RF (IC: 8976C-
SPBTLERF).