STEVAL-IDI004V2

Wireless bridge 868 MHz

Data brief

Features



STM32F103 microcontroller as bridge between communication protocols



SPWF01SA.11 module for Wi-Fi communication:



2.4 GHz IEEE 802.11 b/g/n Wi-Fi



Pre-certified RF module (FCC, IC, CE)



Integrated TCP/IP



AT commands



TLS/SSL for end-to-end security



Over-the-air firmware updates



SP1ML-868 module for Sub-GHz RF communication:



868 MHz ETSI-certified module



Based on Sub-GHz SPIRIT1 transceiver, STM32L1 ULP MCU and balun (BALF-SPI-01D3)





Chip antenna

Simple AT commands



SPBT2632 module for Bluetooth communication:



Bluetooth® Classic 3.0 version



AT commands



CE, FCC, IC, TELEC certified



Low-power mode supported



Supports NFC communication with the

CR95HF and 13.56 MHz inductive etched antenna



Configuration using a PC GUI (by request) through USB VCOM



Android application to access sensor node data via Bluetooth on request



Works as a root node for the mesh network using sensor node evaluation board (part number STEVAL -IDI002V2/3V2)



RoHS compliant

Description

The STEVAL-IDI004V2 wireless bridge evaluation kit is an Internet of Things (IoT) Home

Bridge which supports the Wi-Fi, Sub-GHz,

Bluetooth and NFC communication protocols.

The device is suitable for various smart home, smart city and industrial applications.

The system uses an STM32F103 microcontroller as a bridge between the various communications modules. The Wi-Fi, Bluetooth and Sub-GHz certified modules are connected through a UART interface to the STM32 microcontroller. The NFC transceiver module is connected through an SPI interface.

December 2015 DocID028388 Rev 2

For further information contact your local STMicroelectronics sales office

1/7

www.st.com

Schematic diagrams STEVAL-IDI004V2

Detailed description

The evaluation kit supports the following communication protocols:

1. Wi-Fi communication @ 2.4 GHz IEEE 802.11 b/g/n using the SPWF01SA

2. Sub GHz communication @ 868 MHz low power RF using the SP1ML-868

3. Bluetooth communication @ 2.4 GHz, v3.0 compliant using the SPBT2632C2A

4. NFC communication @ 13.56 MHz using the CR95HF

The board can be connected to the PC through a USB VCOM interface. The Wi-Fi configuration parameters and the mesh node configuration can be programmed through the available PC GUI (by request). Debug log messages can also be collected through the

GUI. The sensor data from any node in the mesh network (6LowPAN Contiki 3.0) is accessible through an Android application over a Bluetooth interface. The board is powered by a 5 V, 1 A wall adapter. The status of the various communication interfaces is indicated using five LEDs mounted on the board.

Figure 1: Wireless Bridge WiFi/NFC/BT/RFSubGHz scenario

2/7 DocID028388 Rev 2

STEVAL-IDI004V2

1 Schematic diagrams

Figure 2: Microcontroller section

Schematic diagrams

GSPG170915 1155SG

3V3

C10

4.7uF/10V

C11 C12 C13 C14

100nF 0402 100nF 0402 100nF 0402 100nF 0402

C15

100nF 0402

3V3 1

3

2

R9

10K

Shor t 2 and 3 t o boot f r om f l ash

DNM, SWD

C18

20pF

C19

20pF

Y1

8MHz

R10

390

BOOT0

SYS_OSC_IN_PD0

SYS_OSC_OUT_PD1

PC13_SPW_SWDIO

PC14_SPW_SWCLK

PC15_SPW_BOOT0

SYS_OSC_IN_PD0

SYS_OSC_OUT_PD1

NRST

PC1_WAKEUP

PC2_WF_RESET

3V3

PA0_USART2_CTS

PA1_USART2_RTS

PA2_USART2_TX

NRST

C25

100nF 0402

R11

10K

3V3

R16

3.3K 1%

VPS _MAIN

R18

3.3K 1%

R17

DN M, 3.3K 1%

PB4_SP I3_ MISO

PB 5_ SP I3_ MOSI

PB3_SP I3_ SCK

PA15_ SP I3_ NSS

PC11_ UART4_ RX

PC10_ UART4_ TX

U6

21

ST_R1

19

20

SS I_0

SS I_1

16

17

18

15

SP I_MISO

SP I_MOSI

SP I_SCK

SP I_SS

14

12

UART_TX/IRQ_O UT

UART_RX/IRQ_IN

R19

10K

R23

3.3K 1%

R20

3.3K 1%

VPS _MAIN

C49

10 pF

50 V

1

Y3

2

3 27.12 MHz

C50

10pF

50V

10

11

8

9

6

7

4

5

12

13

14

15

16

1

2

3

VBAT

PC13_ANTI_TAMP

PC14_OSC32_IN

PC15_OSC32_OUT

PD0_OSC_IN

PD1_OSC_OUT nRST

PC0

PC1

PC2

PC3

VSSA

VDDA

PA0_WKUP

PA1

PA2

U4

VDD_2

VSS_2

PA13

PA12

PA11

PA10

PA9

PA8

PC9

PC8

PC7

PC6

PB15

PB14

PB13

PB12

48

47

46

41

40

39

38

45

44

43

42

37

36

35

34

33

3V3

SYS_JTMS_SWDIO_PA13

PA12_USB_DP

PA11_USB_DM

PA10_USART1_RX

PA9_USART1_TX

PA8_WKUP_SP1MOD

R30

D8

1K

PC7_MODE1_SP1MOD

PC6_GPIO0_SP1MOD

TEST_LED2

PB15_MODE0_SP1MOD

PB14_UART3_RTS

PB13_UART3_CTS

PB12_USB_PU

Configure as OUT_OD pins,

PA7_NRESET_SP1MOD,

PC12_BT_RESET and

PC2_WF_RESET

STM32F103RET6

Figure 3: NFC section

R3

300 R

RX1

TX1

5

1

TX2

RX2

2

6

L1 2

560 nH

L1 4

560 nH

C42

120 pF

0402 50V

C43

120 pF

0402 50V

C45

DN M

R22

300 R

C46

DN M

C47

43 pF

50 V

C52

C48

43 pF

50 V

82 pF

50 V

C53

DN M

50V

C51

DN M

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

3

4

7

10

11

23

24

25

26

27

28

3V3

GSPG1709151400SG

R21

1K8

L1 3

1.1µH 13 .56 MHz , PCB Antenna

VPS _MAIN

3V3

L1 6

FERR ITE BEA D

VPS _TX

C54

100 nF

50 V

C55

100 nF

50V

C56

10 µF 080 5

C57

100 nF

50V

C58

100 nF

50 V

C59

10µF 080 5

CR95HF

DocID028388 Rev 2 3/7

Schematic diagrams STEVAL-IDI004V2

Figure 4: BT section

D6 R28

CONN_STATUS

PC1_WAKEUP

D7

1K

ACT_STATUS

R29 1K

PB7_I2C_SDA

PB6_I2C_CLK

3V3

5

6

3

4

7

1

2

U2

GPIO1

GPIO2

GPIO3

GPIO4

GPIO5

GPIO6

GND

STBT2632

C6

10uF 0805

C7

100nF 0402

U7

TX

RX

RTS

CTS

RESET

BOOT

VIN

14

13

12

11

10

9

8

3V3

SW3

DNM

PA10_USART1_RX

PA9_USART1_TX

R4 4K7

PD2_BT_BOOTLOADER

PC12_BT_RESET

C5

100nF 0402

STBT2632

GSPG1709151430SG

Figure 5: Wi-Fi section

25

24

23

22

21

20

19

18

17

16

30

29

28

27

26

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

TDO_SCK3

TCK

TRST_MISO3

TDI

TMS

Ground Paddle

3.3 V

Ground

GPIO6_ADC0

GPIO15_DAC

GPIO5_TXD3

GPIO2_SPICS

GPIO4_RXD3

GPIO1_MOS1

GPIO0_MISO

GPIO13

GPIO14

GPIO7_ADC1

GPIO12_SDA

GPIO11_SCL

RTS1_DP

CTS1_DN

RXD1

GPIO9_ADC3

TXD1

GPIO10

GPIO8_ADC2

RESETn

BOOT0

GPIO3_SCLK

PC14_SPW_SWCLK

PC13_SPW_SWDIO

PA4_GPIO6_WIFI

PA0_USART2_CTS

PA1_USART2_RTS

PA2_USART2_TX

PA3_USART2_RX

PC15_SPW_BOOT0

Note : Add plenty of ground vias

C37

100nF 0402

SW4

DNM

3V3

C38

10µF 0805

LED_DRIVE WiFi Link

LED_DRIVE WiFi_PowerUP

GPIO10 LED_DRIVE Running

R15

4K7

C39

100nF 0402

PC2_WF_RESET

3V3

PC13_SPW_SWDIO

PC14_SPW_SWCLK

PC2_WF_RESET

R12

1K

R13

1K

R14

1K

D1

LINK

D2

PUP

D3

RUN

1

2

3

4

5

J12

DNM, SWD

SPWF01SA.11

GSPG1709151520SG

3V3

C34

10µF 0805

Figure 6: Sub GHz section

R25

1K

3V3

D5

1

PA8_WKUP_SP1MOD

TEST_LED2

PC6_GPIO0_SP1MOD

PA6_GPIO1_SP1MOD

2

3

4

PB15_MODE0_SP1MOD

PC7_MODE1_SP1MOD

5

6

7

8

C35

100nF 0402

C36

100pF 0402

U5

TXRXLED

WKUP

GPIO0

GPIO1

MODE0

MODE1

VDD

GND

CTS

RTS

RXD

TXD

RESET

BOOTMODE

SWCLK

SWDIO

12

11

10

9

16

15

14

13

SP1MOD

PB14_UART3_RTS

PB13_UART3_CTS

PB10_UART3_TX

PB11_UART3_RX

PA7_NRESET_SP1MOD

PC4_BOOTMODE_SP1MOD

SP1MOD_SWCLK

SP1MOD_SWDIO

3V3

SP1MOD_SWDIO

SP1MOD_SWCLK

PA7_NRESET_SP1MOD

J11

3

4

1

2

5

DNM, SWD

PC4_BOOTMODE_SP1MOD

PA7_NRESET_SP1MOD

R27

DNM, 10K

SW2

DNM

C26 SP1ML-868

3V3

R26

4K7 100nF 0402

GSPG1709151540SG

4/7 DocID028388 Rev 2

STEVAL-IDI004V2

J3

1

2

3

Figure 7: Power supply section

F1

3

U8 LD1117ADT33TR

2

VIN VOUT

0ZCJ0100FF2E

C60

100nF

SMAJ5.0

3V3

3 V 3

C61

10µF 0805

Schematic diagrams

1

TP1

1

TEST POINT

TP3

3V3

PC5_LED_ERROR

Power Supply

R24 160 E

3

1

R33

160 E

D4

2

LED BI-COLOUR

GSPG1709151550SG

Figure 8: NFC transceiver section (1 of 2)

TP2

1

J1

TEST POINT

1

TP4

1

4

5

2

3

3V3

SYS_JTMS_SW DIO_PA13

SYS_JTCK_SW CLK

NR ST

TEST POINT TEST POINT

MOUNTING HOLES SWD CONNECTOR

J10

3

4

1

2

5

C9

4.7nF

PB6_ I2C_CLK

PB7_ I2C_SDA

PB8_ SW _CN TRL

3V3

3V3

R31

4K7

R32

4K7

GSPG1709151600SG

Figure 9: NFC transceiver section (2 of 2)

PA10_ USART1_ RX

PA9_ USART1_ TX

PA0_ USART2_ CTS

PA1_ USART2_ RTS

PA2_ USART2_ TX

PA3_ USART2_ RX

3V3 1

4

5

2

3

6

9

10

7

8

J8

CON10

J9

1

4

5

2

3

6

7

8

9

10

PB10_ UART3_ TX

PB11_ UART3_ RX

PB14_ UART3_ RTS

PB13_ UART3_ CTS

PB5_ SPI3_ MOSI

PB4_ SPI3_ MISO

PB3_ SPI3_ SCK

PC12_ BT_RESE T

PC11_ UART4_ RX

PC10_ UART4_ TX

CON10

I2C CONNECTOR

R7

1M

6

7

J2

SHELL

SHELL

USB_VCC

USBDM

USBDP

ID

USB_GND

1

2

3

4

5

DBG CONNECTOR

Figure 10: USB section

C2

4.7µF/10V

C3

4.7nF

USB5V

USB5V

USB_DM

GSPG1709151620SG

USB5V

USB_DM

USB_DP

3

U3

I/O1

2

GND

1

I/O1

I/O2 I/O2

USBLC6-2P6

4

6

R8

1.5k

R5

22

USB_DM

USB_DP

R6

22

PB12_USB_PU

PA11_USB_DM

C4

15pF

PA12_USB_DP

C8

15pF

USB

GSPG1709151630SG

DocID028388 Rev 2 5/7

Revision history

2 Revision history

Date

Table 1: Document revision history

Version Changes

01-Oct-2015

17-Dec-2015

1

2

Initial release.

Updated title on the cover page.

STEVAL-IDI004V2

6/7 DocID028388 Rev 2

STEVAL-IDI004V2

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