STMicroelectronics UM2800, STEVAL-VOICE-UI User Manual

UM2800

User manual

Getting started with the STEVAL-VOICE-UI voice user interface evaluation kit

Introduction

The STEVAL-VOICE-UI Amazon™ qualified evaluation kit is designed to allow evaluation of a cost-effective way to integrate
AVS for AWS IoT Services® into smart devices, so they can implement state-of-art, hands-free voice control based on natural

language comprehension.

Users will therefore enjoy a heightened experience with target IoT end products, with the ability to talk to Amazon Alexa and
control smart home devices, get assistance, listen to the news, check the weather forecast, play music, etc.

The software package implements audio front-end, Amazon wake word, audio playback and Amazon Alexa® communication
protocol software. The SDK runs on internal memories only, offering maximum integration and cost-effective solutions.

The STEVAL-VOICE-UI is built with a modular approach for easy prototyping and debugging purposes as well as easy
adaptation to specific microphone spacings, user interface and audio output requirements.

Figure 1. STEVAL-VOICE-UI voice user interface evaluation kit

UM2800 - Rev 1 - November 2020

For further information contact your local STMicroelectronics sales office.

www.st.com

1 Overview

Cortex-M7F@480MHz

1MB RAM

2MB Flash

STM32H753VIT6E

700mA DC-DC

SPI

Murata 1DX

2MB NOR

Flash

STDC14

Led driver

UART

PDM

Joystick

I2C

40pin
conn
(CN1)

USB-C

STSAFE

I2C

Wi-Fi Module

Wi-Fi sub-system

4 LED

(bypass mode)

Audio OUT

ISSI IS25LP016D

I2S

PDM

I2C

UART

STEVAL-VUIDB01V1STEVAL-VUIMB02V1

I2C

I2S

ST1S12GR

LED

4x RGB

2x Buttons

Speaker

output

connector

LED1202

FDA903D

MP23DB01HP

Digital microphone

(Optional)

(Optional)

The STEVAL-VOICE-UI kit features:

• STM32H753VIT6E high-performance MCU with 2 MB embedded Flash, 1 Mb embedded SRAM and in
cost-effective LQFP package

• 2.4 GHz Wi-Fi subsystem with Murata 1DX module used in bypass mode coupled to ISSI IS25LP016D 2
MBytes NOR Flash memory

• 3 x MP23DB01HP MEMS microphones with 36 and 30 mm spacing

• FDA903D class D digital input automotive audio amplifier

• 8 Ohm loudspeaker

• 4 RGB LEDs and 4 simple LEDs

• Joystick, reset and user push buttons

• High modularity with mother/daughter board

• Small 36x65 mm² footprint with simple and cost-effective PCB design

1.1 Kit components

The STEVAL-VOICE-UI kit package includes:

• STEVAL-VUIMB02V1: VUI mother board embedding the STM32H753VIT6E MCU and the Wi-Fi module

• STEVAL-VUIDB01V1: VUI daughter board including the audio front-end (MP23DB01HP microphones and

FDA903D audio amplifier) and the user interface (buttons, joystick, LEDs and USB)

• 8 Ohm speaker

• Mechanical parts

• STLINK-V3MINI debugger/programmer for STM32 with programming cable

• A to C connector cable

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Overview

1.2

UM2800 - Rev 1

Functional block diagram

Figure 2. STEVAL-VOICE-UI functional block diagram

page 2/34

1.3 System requirements

U4

STM32H7

VBUS

J1

MP23DB01HP

LED1202

USB-C

J2

5V

V_PA

STEVAL-VUIMB01V1

Wi-Fi sub-module

STSAFE

FDA903D

Audio Amplifier

STEVAL-VUIDB02V1

Murata 1DX

2MB NOR

3V3

ST1S12

J8

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System requirements

• Windows® OS (7, 8 and 10), Linux® 64-bit, or MacOS

• html5 web browser version

• Companion app requires Android 7

1.4 Development toolchains

• IAR Systems - IAR Embedded Workbench® EWARM

1.5 Power supply

The easiest way to power the STEVAL-VOICE-UI kit is via the USB-C connector.

J1 J8 Description

CLOSE CLOSE Single power supply from USB. Do not connect V_PA (J2)

CLOSE OPEN Single power supply from V_PA (J2) → up to 5 V

Dual power supply:

OPEN CLOSE

OPEN OPEN 5 V from external source (CN1)

• 5 V from USB

• V_PA from J2 → Up to 18 V

®

Table 1. Power supply options

Figure 3. STEVAL-VOICE-UI power supply block diagram

UM2800 - Rev 1

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1.6 User interfaces

1. 4 LEDs

2. Reset button

3. 4 RGB LEDs

4. J8

5. J1

6. Loudspeaker terminals

7. Programming connector (STDC14)

8. User button

9. Joystick

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User interfaces

Figure 4. STEVAL-VOICE-UI user interfaces

UM2800 - Rev 1

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2 Demo firmware

2.1 Pre-requisites

The pre-installed ST_VOICE_UI flashed demo firmware demonstrates a voice service solution able to connect to
AVS for AWS IoT.

A direct Internet connection is needed (without proxy).

As an Alexa® device, you need an Amazon™ account to connect to AVS for AWS IoT service.

The account can be created on www.amazon.com or other local versions.

The users who have registered to Amazon Music service will be able to play music on the device.

2.2 Device setup

Step 1. Power the device through a USB C cable.

Step 2. Configure the network connection.

Step 3. Register to AVS for AWS IoT service.

2.2.1 Android users

For Android users, the stvsSmartConfig companion app is available on Google Store and allows configuring the
device. The application is also available in the software delivery package for manual installation.

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Demo firmware

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page 5/34

UM2800

Device setup

Step 1. To configure a new device, push the [Onboarding new device] button and follow the instructions.

Figure 5. stvsSmartConfig procedure

2.2.2 Other users - HTTP UI

The device embeds an HTTP service that the consumer can connect to via smartphone or PC and an HTML5
browser (Safari or Chrome). To connect to the server, the smartphone must be connected to the same Wi-Fi spot
of the board.

The HTTP UI interface tab allows checking the service status and changing some configurations.

Two cases must be distinguished:

1. Wi-Fi connection

2. Other connections (Wi-Fi information already logged in)

2.2.2.1 Wi-Fi connection

Step 1. Ensure the device is in Access Point (AP) mode.

Step 1a. Check the current mode using the RGB LEDs (see Table 2).

Step 1b. If not in AP mode, refer to Section 2.9 .

Step 2. Connect your phone/PC navigator to 192.168.0.1.

Step 3. Follow the procedure described in Section 2.2.2.1.1 .

2.2.2.1.1 Wi-Fi configuration

By default, the device comes in Wi-Fi AP mode and offers a hotspot whose name looks like stvs-xxxx.

Step 1. Connect your PC or smartphone to the hotspot and then connect the browser to the address

192.168.0.1.

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Step 2. Go to STVS UI [Setup] tab.

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Device setup

Figure 6. STVS user interface

2.2.2.2

UM2800 - Rev 1

Step 3. Push the [Wi-Fi-Scan] button.

All visible spots will be listed in the scan results.

Step 4. Scroll down and select your home network (in this case the hotspot is called [Netbook]).

Step 5. Scroll back and type the Wi-Fi password.

Step 6. Scroll down and select the connection type ([Wi-Fi STA].

Step 7. To connect the board, scroll up and select [Re-connect].

Step 8. Check RGB LEDs on the board (see Table 2).

After few seconds, the Wi-Fi state should switch from “disconnected” to “connected “.

The board reboots and connects to the network via Wi-Fi using a new IP address.

Connection to Wi-Fi STA

In this case, hotspot Wi-Fi information has already been configured and the board is properly connected to it
(refer to Section 2.2.2.1.1 , step 6).

page 7/34

Step 1. Get the board IP address available in the serial console.

Step 2. Refer to Section 2.11 to access the traces.

Note: Traces with the IP address looks like:

00:00:00 : 192.168.X.X : 06:STVS_EVT_NETWORK_IP(0x3001D5BC)

The IP is no longer in the AP mode (address = 192.168.0.1).

Step 3. Connect to the UI using the given address.

Step 4. If there is no serial console connected to the board, scan the network using a free application.

Once installed, the application shows all STVS devices available in the neighborhood and allows
connecting to them:

– iPhone users can install “Bonjour HTTP search” from the App Store;

– Android users can download “BonjourBrowser” from the Android Store;

– PC users can install “bonjour browser” from www.tildesoft.com.

2.3 Device registration

Step 1. From www.amazon.com or local Amazon server, create an Amazon account.

UM2800

Device registration

Step 2. Under [Setup] tab, click [Registration](HTML5 browser required).

The browser will display a code and a link (amazon.com/code).

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Step 3. Copy the code and click on the link.

Figure 7. CBL device registration code

You will be redirected to an Amazon sign-in page.

UM2800

Device registration

Figure 8. Amazon sign-in page

UM2800 - Rev 1

Step 4. Enter you Amazon credentials.

If credentials are correct, you will be redirected to the following page.

Figure 9. Register device page

page 9/34

Step 5. Past or enter the code given in the previous page and click on continue.

If this step is successful, the board connects to AVS for AWS IoT and the LEDs turns off after few
seconds.

Now you can test the device. You can talk to Alexa (for example, asking: “Alexa, what time is it ?”)

2.4 Privacy mode

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Privacy mode

Figure 10. Successful registration

The device enters privacy mode when you briefly push the white user button.

A red LED switches on and the device does not send any other audio request to the cloud, even when saying
"Alexa".

2.5 Alarms

When an alarm or a timer is set and the device rings, you have to press the joystick to acknowledge and stop the
alert.

Example of voice requests:

• “Alexa set a timer for 2 minutes”;

• “Alexa set an alarm at 5 pm”;

• “Alexa set alarm” → Alexa will ask for details.

2.6 Amazon music control

If the Amazon account used to register the board is registered to Amazon music, it is possible to ask Alexa to play
some songs or playlists and navigate it.

The joystick is also used to navigate music playlists.

2.7 LED UI animations

Table 2. RGB LED animations indicating device state

Effects Color Internal service ID Animation Comment

Blue Restarting Solid

Blue/Cyan Booting Normal beat

Just after the reset.
It remains like this
until the first event is
dispatched.

It remains like this
during the basic
system initialization.

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LED UI animations

Effects Color Internal service ID Animation Comment

It signals a

Cyan/Orange configuration_changes Normal beat

Blue/Yellow has_ip Very fast blinking

Red/Purple error_need_credentials Fast blinking

Green/Red

Yellow/Green connecting Fast counterclockwise rotation

error_need_registration Slow rotation

configuration state,
mainly when the
board is in Access
Point mode.

During the boot, it
signals by a sort
event that the network
has an IP address.

It signals an error,
the system needs
AWS and AVS
credentials. It should
occur only during
test and development
configuration.

It signals an error.
The system needs an
AVS registration (refer
to Section 2.3 ).

It signals a
reconnection to the
AVS for AWS IoT
service.

Red Privacy Very long pulsation

Blue/Black Wakeup Very fast rotation

Black Idle All off

Blue activeListening Very long pulsation

Black stopListening All off Not signalled yet.

Black startListening All off Not signalled yet.

Cyan activeSpeaking Very very long pulsation

Black stopSpeaking All off Not signalled yet.

Black startSpeaking All off Not signalled yet.

Black thinking All off Not signalled yet.

It signals the privacy
mode is ON.

Short signal when a
Wakeup occurs.

It signals the board is
ready for interactions.

The AVS for AWS IoT
service is listening for
utterance.

The AVS for AWS IoT
service is speaking or
playing.

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Red/Black alerting Slow counterclockwise rotation

A timer/alarm/
notification/remember
is triggered.

page 11/34

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Buttons and joystick

Effects Color Internal service ID Animation Comment

Green blinkGreen Slow blinking

Red blinkRed Slow blinking

It signals a
general purpose
event (Debug).

It signals a
general purpose
event (Debug).

Yellow notification Very long pulsation

Purple dnd Very long pulsation

White

2.8 Buttons and joystick

The STEVAL-VOICE-UI has two push buttons and one joystick.

The black (reset) push button reboots the board, whereas the white (user) button is for mute/privacy state.

A long white button push is used to change the board network configuration (see Section 2.9 and

Section 2.10 ).

Click type Mode Reference

Short click Privacy mode See Section 2.4 .

Long click

1 bip or voice: Switch network See Section 2.9 .

2 bips or voice: Factory Reset See Section 2.10 .

SwitchNetwork (6sec)

FactoryReset (10sec)

Very fast rotation

Table 3. User button

It signals a
notification.

It notifies a do not
disturb.

It signals the
user has made
a long push (see

Section 2.9 and
Section 2.10 ).

The joystick is mapped to control play and stop. This mapping is arbitrary and is customizable by the user.

Action Result

Stop Select

Previous Left

Next Right

Down Volume down

Up Volume up

2.9 Network switching

If the device keeps trying to connect to the Wi-Fi and the fast white circular sequence on RGB LEDs occurs or if
you want to connect to Ethernet, you have to re-enter or modify Wi-Fi credentials and the device has to be in AP
mode.

In such cases, follow the below procedure to switch to another network.

UM2800 - Rev 1

Table 4. Joystick default mapping

page 12/34

Step 1. Push the white user button for about 6 seconds.

A circular RGB LED sequence occurs while the button is pushed (see Section 2.7 ).

Note: Do not push for 10 seconds to avoid starting the sequence described in Section 2.10 .

Step 2. After 6 seconds, check the log traces to know what mode you switched to (refer to Section 2.11 ).

If the device does not switch to the desired network, repeat the procedure starting from step 1.

2.10 Factory reset

Step 1. Push the white user button for about 10 seconds.

A first circular sequence on RGB LEDs occurs for 6 seconds, indicating the Wi-Fi configuration is
switching back to AP mode.

Then, a second sequence starts for 4 seconds more.

Step 2. Release the button.

The device reboots with factory default settings.

2.11 Log traces and STLINK-V3MINI connection

Step 1. Connect the provided STLINK-V3MINI between the board and a PC to get some debugging traces.

UM2800

Factory reset

Step 2. Connect with any serial terminal such as Tera Term, for instance.

The UART configuration is:

– Baud rate = 921600

– Data = 8-bit

– Parity = none

– Stop = 1-bit

– Flow control = none

The level of log traces can be tuned through the HTTP UI.

Step 3. Select [Gdb] tabs and click on the additional debug level(s) you need.

Important:
Printing debug info might disturb the state machine. The debug level is not designed to print everything. Only a set of levels
can be printed at once.

UM2800 - Rev 1

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3 Kit layout

3.1 STEVAL-VUIMB02V1 mother board layout

The STEVAL-VUIMB02V1 mother board includes the processing power capabilities and the main connectivity
module.

Figure 11. STEVAL-VUIMB02V1 layout (top view)

UM2800

Kit layout

Figure 12. STEVAL-VUIMB02V1 layout (bottom view)

• U1: STSAFE-A110, authentication and brand protection secure solution (footprint only)

• U2: Murata 1DX, Wi-Fi module

• U3: ISSI IS25LP016D, 2MB QSPI NOR memory

• U4: ST1S12GR 0.7 A, 1.7 MHz adjustable, step-down switching regulator

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page 14/34

• U5: STM32H753VIT6E high-performance ARM Cortex-M7 MCU

• J9: STDC14, STLink-V3 programming connector

• CN3: USB-C socket

3.2 STEVAL-VUIDB01V1 daughter board layout

Figure 13. STEVAL-VUIDB01V1 layout (top view)

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STEVAL-VUIDB01V1 daughter board layout

Figure 14. STEVAL-VUIDB01V1 layout (bottom view)

• U1:ESDA6V1-5SC6 Transil (TVS) array for ESD protection

• U2: FDA903D 45 W class D digital input power amplifier

• U3: HSP061-2N4 2-line ESD protection for high speed lines

• U4: LED1202QTR 12-channel low quiescent current LED driver

• M1, M2, M3: MP23DB01HP

• J2: Audio out power supply connector

• J7: Audio out connector (loudspeaker)

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4 Main devices

4.1 STM32H753VIT6E

STM32H753xI devices are based on the high-performance Arm® Cortex®-M7 32-bit RISC core operating at up to
480 MHz. The Cortex® -M7 core features a floating point unit (FPU) which supports Arm® double-precision (IEEE
754 compliant) and single-precision data-processing instructions and data types. STM32H753xI devices support a
full set of DSP instructions and a memory protection unit (MPU) to enhance application security.

STM32H753xI devices incorporate high-speed embedded memories with a dual-bank Flash memory of 2 Mbytes,
up to 1 Mbyte of RAM (including 192 Kbytes of TCM RAM, up to 864 Kbytes of user SRAM and 4 Kbytes of
backup SRAM), as well as an extensive range of enhanced I/Os and peripherals connected to APB buses, AHB
buses, 2x32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memory
access.

All the devices offer three ADCs, two DACs, two ultra-low power comparators, a low-power RTC, a high-resolution
timer, 12 general-purpose 16-bit timers, two PWM timers for motor control, five low-power timers, a true random
number generator (RNG), and a cryptographic acceleration cell. The devices support four digital filters for external
sigma-delta modulators (DFSDM). They also feature standard and advanced communication interfaces.

4.2 ST1S12GR

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Main devices

The ST1S12 is a step down DC-DC converter optimized for powering low-voltage digital cores in HDD
applications and, generally, to replace the high current linear solution when the power dissipation may cause
high heating of the application environment. It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V.

A high switching frequency (1.7 MHz) allows the use of tiny surface-mount components. In addition to the resistor
divider, only an inductor and two capacitors are required to set the output voltage value. Moreover, a low output
ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors.

The device is thermally protected and the current is limited to prevent damage due to accidental short-circuit.

4.3 STSAFE-A110 (footprint only)

The STSAFE-A110 is a highly secure solution that acts as a secure element providing authentication and secure
data management services to a local or remote host. It consists of a full turnkey solution with a secure operating
system running on the latest generation of secure microcontrollers.

The STSAFE-A110 can be integrated in IoT (Internet of things) devices, smart-home, smart-city and industrial
applications, consumer electronics devices, consumables and accessories.

4.4

FDA903D

The FDA903D is a single bridge class D amplifier, designed in the most advanced BCD technology, intended for
any automotive audio application (car radio, telematics and e-call, noise and tone generators, etc).

The FDA903D integrates a high performance D/A converter together with powerful MOSFET outputs in class D,
so it is very compact and powerful. Moreover, it reaches outstanding efficiency performance (90%).

It has a very wide operating range with standard car battery levels (5.5-18 V operating, compatible to load dump
pulse) and with external step-down generated voltages or emergency battery (since it is compatible to minimum

3.3 V operative).

The feedback loop includes the output L-C low-pass filter allowing superior frequency response linearity and lower
distortion.

FDA903D is configurable through I²C bus interface and integrates a complete diagnostics array specially
designed for automotive applications, including innovative open load and DC offset detection in play mode.

Thanks to the solutions implemented to solve EMI problems, the device can be used in standard single DIN
car-radio boxes together with the tuner.

FDA903D also features a configurable power limiting function and can be optionally operated under no I2C mode
(legacy mode).

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4.5 LED1202

The LED1202 is a 12-channel low quiescent current LED driver which guarantees 5 V output driving capability.
Each channel is able to provide up to 20 mA with a headroom voltage of 350 mV (typ.) only. The output current
can be adjusted separately for each channel by 8-bit analog and 12-bit digital dimming control.

A slow turn-on and turn-off time improves the system low noise generation performance. Moreover, the phase
shifting function helps to reduce the inrush current. Eight patterns can be stored in the internal registers for
automatic sequencing without MCU intervention.

The pattern sequence can be also configured for duration time and number of repetition. For multi-device
applications, a common clock domain can be shared for timing synchronization. The device also includes thermal
shutdown and open LED detection.

4.6 HSP061-2

The HSP061-2 is a 2-channel ESD array with a rail-to-rail architecture specifically designed for the protection of
high speed differential lines.

The ultra-low variation of the capacitance ensures very low influence on signal skew. The large bandwidth makes
it compatible with 5 Gbps.

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LED1202

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page 17/34

PA15

USART1_TX

BOOT0-PC0

NF

PD14

61

PC0

15

I2S2_WS

Assembly Information:

C11

1

ETH_TX_EN

PB2

36

VDD_3

75

EXTI_LINES
EXTI0 --> USR Button
EXTI1 -->
EXTI2 -->
EXTI3 --> WiFi
EXTI4 -->
EXTI5 -->
EXTI6 -->
EXTI7 -->
EXTI8 -->
EXTI9 -->
EXTI10 -->
EXTI11 -->
EXTI12 -->
EXTI13 -->
EXTI14 -->
EXTI15 -->

6.8pF

I2S2_SDI

I2C1_SCL

C5

100nF

PD8

55

19

USART1_RX

DFSDM1_CKOUT

ETH_TXD1

ETH_REF_CLK

C8

1uF

FMC_NOE

25

31

PD4

85

5

VDD_uC

39

PE7
PE8
PE9

77

PA15

100nF

C20

PC5

33

C13

100nF

QSPI_BK1_IO1

SB20R

PA0-WKUP

44

PE14

UART5_TX

13

5V

12

5.6pF

SWDCLK

PA0

3

PC15_EXT

QSPI_BK1_IO3

4

5.6pF

MCU_RESET

VSSA

48

VDD_uC

PE3

2

SW1

SWDIO

PC3_C

18

8

PD5

86

FMC_NE1

USART1_RX

I2S2_MCK

PC9

66

PD11

58

ETH_MDC

11

14

37

3V3

C7

100nF

PC15-OSC32_OUT

9

FTSH-107-01-L-D-RA

FMC_DA1

46

PB1

PB15

USB_OTG_DP

C10

100nF

USART1_TX

74

MCU_RESET

C2

X1

X2

PA8

STM32H7x3VIT

SB18NC

BOOT0-PC0

PB3

NF

PA11

C

U5C

PA2

PA14

PD9

56

PD15

62

BOOT0

94

91

76

STDC14 connector
for STLINK-V3

QSPI_BK1_NCS

PC10

78

42
43

PE12
PE13

1

QSPI_CLK

MCU_RESET

FMC_DA13

SWDIO

6

PA13

VSS_3

99

VSS_4

100nF

C6

PB5

38

PA3

SPI1_MISO

1

4.7uF

29

PA5

DFSDM1_DATIN1

PE1

98

PD6

87

MCU_RESET

PD6

67

PPAA6

7

FMC_A16

ETH_RXD1

NF

PD13

60

SW2

32.7680KHZ

1

PA9

PC12

80

C12

92

PB4
PB5
PB6

24

4

90

I2C1_SDA

PC6

63

C15

SPI1_MOSI

47

PB1

52

54

53

51

PB12
PB13
PB14
PB15

1

0

PC14-OSC32_IN

I2S2_SDO

SB30R

PD3

84

2

USB_OTG_DM USART3_RX

FMC_DA0

C

2.2uF

PB3

89

6

VBAT

PC14_EXT

C17

SWDCLK

U5B

J2

26

68

71

PA12

PD2

83

VDD_uC

STM32H7x3VIT

SB240R

ETH_MDIO

23

PA1

41

PE1

13

PH1-OSC_OUT

QSPI_BK1_IO0

6.8pF

PE0

97

PE2

1

PE4

3

FMC_DA14

8

PE6

5

BOOT0-PC0

95

93

PB7
PB8

2

USART3_CTS

PC13

VSS_

49

VSS_2

PC13

7

PE5

4

C9

100nF

FMC_NL

FMC_A17

VREF+

20

PA8

PA4

FMC_NWE

040PE1

ETH_RXD0

PA10

28

SB26NC

12

PH0-OSC_IN

69

PD1

82

VDD_uC

PD7

88

PD10

57

70

USART3_TX

PD12

59

2.2uF

C14

100nF

C3

PC4

32

NF

PD0

81

PC11

79

SB19

Close to VDD

PB0

34

UART5_RX

1

USART3_RTS

NF

VDDA

21

SPI1_SCK

C1

J3

ETH_CRS_DV

VDD_1

27

30

FMC_DA3

OSC_IN

OSC_OUT

MCU_RESET

OSC32_IN

OSC32_OUT

OSC_IN
OSC_OUT

PB13

PD11

PC14
PC15

OSC32_IN
OSC32_OUT

3

FMC_NBL0
FMC_NBL1

QSPI_BK1_IO2

PE3

DFSDM1_DATIN3

PE5
PE6

FMC_DA4/WL_HOST_WAKE

FMC_DA5/BT_HOST_WAKE

FMC_DA6/BT_EN

FMC_DA7/BT_DEV_WAKE

FMC_DA8

FMC_DA9
FMC_DA10
FMC_DA11
FMC_DA12

PC2_C

17

22

2

2 of 3

I2S2_CK

STM32H7x3VIT

FMC_DA2

73

VCA
VCAP1P2

VDD

11

ETH_TXD0

10

2

PC1

16

FMC_DA15

NRST

14

USART3_CTS

10K

R6

PB1

35

VDD_4

100

96

PB9

PC8

NC

7

NF

PA4

VDD_2

50

PA3

U5A

10

VSS

PC7

64

Current monitoring

1

2

3 of 3

PC8

65

45

PE15

VDD_uC

72

1

16MHz

SB210R

1 of 3

9

UM2800 - Rev 1

5 Schematic diagrams

Figure 15. STEVAL-VUIMB02V1 schematic (1 of 3)

page 18/34

Schematic diagrams

UM2800

N

1

2

TH

5V

FID40RD_80RD

L1

I2C1_SDA

FID40RD_80RD

C18

100nF

3V3

TP3

TH

PWR IN

FMB2

FID40RD_80RD

TP1

3V3

J4

NC#2

6

1

S#

QSPI_CLK

Assembly Information:

2.2uH

C4

15uF

10uF

C19

C

6

N1F

FMT1

1

FMB3

I2C1_SCL

VCC

8

ST1S12GR

DQ1

2

5V

2

NF

FID40RD_80RD

FMT2

J7

3

SW

C16

100nF

U4

GND

4

DQ0

5

3V3

NC#1

3

3V3

QSPI_BK1_IO0

QSPI Flash

SDA

5

4

VIN

10K

R3

QSPI_BK1_NCS

PD6

3V3

-MT25QL512ABB8ESF-0SIT --> SOP2-16 (10x10)

-MT25QL512ABB1EW9-0SIT --> 8-WPDFN (8x6)

-MT25QL128ABA1ESE-0SIT --> 8-SOIC (8x5.5) --> not available

-MT25QL128ABA1EW7-0SIT --> 8-WPDFN (6x5)

FULL VERSION
ONLY

QSPI_BK1_IO3

2

RESET

VCC

EN

1

FMT3

MT25QL128ABA1EW7-0SIT

FID40RD_80RD

QSPI_BK1_IO1

U3

FMB1

15k

R4

3V3

700mA MAX

1

EP

9

FB

5

7

SCL

NF

W#/DQ2

3

NC#3

3V3_DCDC

1

F

STSAFE-A101 (not mounted)

QSPI Flash:

Read: 31mA
Write: 35mA

GND

4

2

QSPI_BK1_IO2

GND

7

DQ3/HOLD#

SB4NC

8

FID40RD_80RD

R568k

U1 STSAFE-A100

UM2800 - Rev 1

Figure 16. STEVAL-VUIMB02V1 schematic (2 of 3)

page 19/34

Schematic diagrams

UM2800

UART5_RX

C21

TBD

BT_HOST_WAKE

4

ETH_MDIO

R7

0

40

41

ANT

PB5

23

NF

39

38

26

11

38

BT_EN

LQM18PN2R2MGH

I2C1_SDA

2

GND

FMC_DA7/BT_DEV_WAKE

FMC_DA7

SB31NC

GND

17

FMC_DA10

PC15_EXT

21

5

SWDIO

34

5

PE3

FMC_DA14

ETH_MDC

.7uF

MANDATORY SIGNALS

NF

39

BT_HOST_WAKE

GND

FMC_NWE

3

WIFI_EN

WIFI_SCK

WIFI_MISO

WIFI_MOSI

WIFI_CS

BT_EN

FMC_DA8

SWDCLK

37

22

SB30

39

SB170R

SB100R

RF2

I2C1_SCL

SB22

25

I2S2_SDO

LBEE5KL1DX

FMC_A16

28

SPI1_MISO

FMC_NBL1

NF

19

PC8

4

C28

BT_UART_CTS_N

1

18

40

PC14_EXT

FULL VERSION
ONLY

BT_GPIO_5

35

PE6

BT_UART_RTS_N
BT_GPIO_3

6

DF17(2.0)-40DP-0.5V(57) Plug
ON BOTTOM

PC13

SB160R

FMC_NBL0

6

U2

I2S2_CK

I2S2_SDI

FMC_DA4

FMC_DA4/WL_HOST_WAKE

FMC_DA4

WL_HOST_WAKE

BT_UART_TXD

2

FMC_DA15

CN2

WIFI_INT

40

‐

15

24

NF

25

NC

23

SB35NC

36

VIO

FMC_DA12

29

33

4

FMC_DA6/BT_EN

FMC_DA6

9

BT_PCM_IN

SB120R

CN1

34

PA15

SB80R

32

21

3

ETH_RXD0

7

USART1_TX

31

22

DFSDM1_DATIN1

NF

1

FMC_DA0

C27

USB_OTG_DM

WIFI_32KHZ

29

I2C1_SDA

0R

14

BT_REG_ON

MCU_RESET

16

22

DF17(4.0)-40DS-0.5V(57) Socket
ON TOP

ETH_TXD1

24

NF

32

SB33NC

VDD

4

8

0

R9

FMC_DA5/BT_HOST_WAKE

C26

TBD

RF1

9

CON40A

15

WL_HOST_WAKE

DFSDM1_DATIN3

BT_DEV_WAKE

33

5V

16

BT_I2S_dO

SPI1_MOSI

USART3_CTS

33

PE5

2.2uF

PB15

18

WL_GPIO_1

GND

DESIGN NOTE:
L2, R8 and C23 symbols changed to reflect
the actual component after antenna tuning
process.

30

FMC_DA9

FMC_DA7

SPI1_MISO

BOOT0-PC0

FMC_A17

SB36

NF

4.7k

23

PA4

15

WL_GPIO_4

GND

35

GND (SR_PVSS)

10

1112

BT_PCM_SYNC

8

31

PC13

FMC_DA3

GNDGG

G

NNN

DDD

14

USART1_RX

SB110R

TBD

C24

ETH_CRS_DV

3V3

ETH_RXD1

26

SB90R

27

SPI1_SCK

USB_OTG_DP

FMC_DA13

SB32

26

GND (SR_PVSS)

USART3_RTS

12

17

WL_GPIO_2

3V3_WiFi

36

35

I2C1_SCL

R1

37

3V3

PA8

VBAT

30

20

SPI_CLK

GND

13

FMC_DA2

1112

30

RF3

14

BT_HOST_WAKE

C23

3nH

SB10R

.7uF

1

SB140R

3V3_WiFi

18

PD6 ETH_REF_CLK

883

BT_PCM_CLK

SPI1_SCK

5V

I2S2_MCK

L2

0

X3
ECS-327MVATX-1-CN-TR

3V3

C

4

29

FMC_DA11

FMC_DA5

20

NF

ETH_MDIO

ETH_TXD0

19

36

BT_GPIO_4

7

38

ETH_TX_EN

BT_DEV_WAKE

0R

3V3_WiFi

20

0R

29

9

BT_EN

FMC_DA6

8

28

13

MCU_RESET

R8

3pF

SB150R

4.7k

454443

42

17

DFSDM1_CKOUT

3

OUT

2

R2

VIN_LDO

32

16

PA0

34

SR_VLX

L3

GND

WL_REG_ON

WL_GPIO_0_HOST_WAK

SPI_INT

SPI_CS

SPI_MISO

SDIO_DATA2

SPI_MOSI

25

1

21

LPO_IN(32kHz)

46

GND

5

19

I2S2_WS

BT_PCM_OUT

10

FMC_NOE

27

6

BT_DEV_WAKE

SB29NC

CON40A

UART5_RX

27

PA3

C30

10nF

3V3

USART3_TX

37

SB34

2

GND
BT_UART_RXD

FMC_NL

SPI1_MOSI

SB130R

0R

13

UART5_TX

7

10

A1

L ANTENNA

BT_EN

28

3

NF

FMC_NE1

FMC_DA1

FMC_DA5

SB23NC

PB3

3V3

4

USART3_RX

2

31

24

EN

1

J1

UM2800 - Rev 1

Figure 17. STEVAL-VUIMB02V1 schematic (3 of 3)

page 20/34

Schematic diagrams

UM2800

2

2

B5

B10

100nF

USB_OTG_DP

VBUS2

A9

C4

B4

D-2
D+2
CC2

RX2-

VBUS

RX1+

USB_OTG_DP

5k1

VBUS5V

FMT1

GND1

A2

B2

B6

TX1-

R4

VBUS

J2

A1

C35

TH

1

FMB1

B1

TP2

A5

D+1

2

FID40RD_80RD

CN3

B11

FMB2

VBUS

J3

2

USB_OTG_DM

U3

1

IO1

Amplifier
power supply

VBUS1

CC1

B12

USB TYPE-C

1

TH

1

ESDA7P60-1U1M

TP1

SBU2

B7

1

GND

FID40RD_80RD

1

FID40RD_80RD

J1

1

3

IO2

A10

100nF

J8

FID40RD_80RD

1

CON2

A11

GND2

VBUS4

B8

VBUS

V_PA

FID40RD_80RD

D3

3V3

A12

RX2+

USB_OTG_DM

EP

VBUS3
TX2­TX2+
GND3

TX1+

GND4

2

5k1

FMT2

VBUS

A3
A4

TP3

TH

V_PA5V

USB_OTG_DM

GND

B3

HSP061-2N4

FMB3

1

FID40RD_80RD

RX1-

B9

4

4

FMT3

R5

A6

D-1

A7

SBU1

A8

2

USB_OTG_DP

UM2800 - Rev 1

Figure 18. STEVAL-VUIDB01V1 schematic (1 of 3)

page 21/34

Schematic diagrams

UM2800

6

D1

I2C1_SCL

SPI1_MOSI

2

R

31

A1

18

MCU_RESET

SB3

PA0

4

632

0R

1314

22

R3

5V

7

CS5

1615

26

DOWN

UP

4

ESDALC6V1-1U2

SB10

1

CENTER

SH1

7

D4

5

0R

UART5_TX

B4

G4

PB5

B

RGB4

1

RESET

SPI1_SCK

4

CS1

3

3V3

4

DFSDM1_CKOUT

D2

3

C5

A

1

USB_OTG_DP

3

SDA

19

R100R

I2S2_SDI

I2S2_SDO

Green

2

R

8

5

CS3

1314

SPI1_MOSI

B

U1

UART5_RX

5

G3

DFSDM1_DATIN1

2

J9

B3

CENTER

3

Red

4

10

11

RIGHT

SH2

8

5

1

PC15

PA0

3

G

CON14A

2

100nF

PE3

DFSDM1_CKOUT

8

USART1_RX

7

LED2

SCL

33

3

4

5

USR

1

USART1_RX

RIGHT

2

R3

A

1

100nF

R3

12

7

6

CS4

PE6

3V3

R120R

G2

23

B1

Joystick

1

LEFT

D2

1

SPI1_NSS

8

C8

9

3V3

MCU_RESET

SWDCLK

C9

1k

I2S2_MCK

3

RGB1

R1

B

UP

1

PA0

PE3

I2C1_SCL

32

DFSDM1_DATIN3

7

13

CS11

R23

LED2

i2C Addr: 58h

4

PA8

COMMON

6

2

R

I2S2_MCK

3V3

ESDA6V1-5SC6

GND

2

3V3

1

STDC14

2

R

U4

SB11

C7

3

LED1

UART5_RX

10k

CS8

11

19

UP

PA15

A

1

LED4

LED3

PC8

CS10

R4

CENTER

1uF

3V3

R2

I2C1_SDA

14

VIN

15

6

R2

SW1

CON40A

G3

DF17(2.0)-40DP-0.5V(57) Plug

ON BOTTOM

Orange

0R

ESDALC6V1-1U2

C6

1

2728

390R

PB15

SPI1_MISO

LED1202

1

CS9

12

B2

G2

C36

100nF100nF

SB12

4

20

8

GND

3738

LED3

3V3

R13

4

DOWN

2

3V3

B3

0R

USART1_TX

3

G

2

2

CS6

9

SWDCLK

PC13

B4

DFSDM1_DATIN3

10

11

B2

PC14

2

B1

SB9

SPI1_SCK

9

IRQn
CS0

2

2

20

21

R6
560R

9

17

UART5_TX

J5

PC15

39

10k

1

34

35

RGB3

PB5

SWDIO

PA8

3V3

R4

1

36

100R

R11

PE6

R90R 1uF

SPI1_MISO

R7
1k

NC

CS7

10

SB16

I2S2_CK

BOOT0-PC0

3

G

A

1

CN1

RGB2

DFSDM1_DATIN1

3

G

D1

1

RIGHT

R1

C37

D3

4

40

R14

I2S2_WS

LED4

4

G1

Blue

18

To MotherBoard

PC14

2

D5

6

USART1_TX

12

Expansion

Programming connector

PA15

12

BOOT0-PC0

USR/BOOT

5

3V3

VLDO

16

2

MCU_RESET

0R

29

100nF

30

G1

I2C1_SDA

24

LED1

1

SWDIO

R8

4

CS2

LEFT

LEFT

SPI1_NSS

B

4

25

1

2

G4

10

11

DOWN

0R

5V

USB_OTG_DM

6

A0

17

1314

PE3

PC8

PB3

2

UM2800 - Rev 1

Figure 19. STEVAL-VUIDB01V1 schematic (2 of 3)

page 22/34

Schematic diagrams

UM2800

C2

49.9K

DFSDM1_CKOUT

100nF

1uF

3

VCCM

EN2

11

VDD

5

100nF

V_PA

3V3

3V3

0R

R23

XAL5050-103ME

4.7nF

C14

I2S2_CK

LR

2

25

AVDD

26

V_PA

15

CDDIAG

C20

10k

27

A5VSVR

10R

0R

100nF

4

OUTM

M2_PDM

100nF

C19

R24

L1

I2Stest

22

NC#34

34

VCCP

35

10k

M1

AGND

0R

R22

R21

GNDP

THSENS

SB5

C33

DFSDM1_CKOUT

C21

M3_PDM

C25 C27

1uF

V_PA

DVDD
EN1

10

1

CH1-

I2Sdata

L2

EN2

C22

330uF/25V

C15

VDD

5

NC

VDD

5

330pF

R16

EN2

1

DOUT

MP23DB01HP

EP

20

21

C31

M2_PDM

36

1uF

5

OUTM

SB14

3V3

9

2

GND

3

3V3

51RR18

I2S2_WS

49.9K

R19

1uF

C3

C12

3.3uF 10V

SB8

10k

I2C1_SDA

3V3

100nF

M3

1uF

1

28

AGSVR

SVR

29

6

FBM

M3_PDM

LR

2

4

CLK

SB6

100nF

C24

19

SCL

NC

CLK

4

CH1+

14

CH1+

C28

330pF

SB4

4.7uF

M2

NC

7

DOUT

MP23DB01HP

C29

EN4

13

I2S2_SDI

C18

C32

DOUT

MP23DB01HP

DFSDM1_DATIN1

CH1-

0R

J7

R15

C11

100nF

HWMUTE

V_PA

1uF

LR

2

I2S2_SDO

SB15

0R

3.3uF 10V

SB7

C23

1uF

37

NC

8

DGND

100nF

C10

NC#16

16
17

23

I2Sclk

I2Sws

24

100nF

U2

1

SPKR

+

FDA903D

1

TAB

C13

HWMUTE

10R

1uF

51R

I2C1_SCL

XAL5050-103ME

R20

V_PA

DVDD

VCCM

100nF

V_PA

18

SDA

31

OUTP

32

C16

499K

R17

DIV8SVR
DGSVR

C30

EN3

12

DFSDM1_CKOUT

C17

SB13

PB15

2

GNDM

CLK

4

C34

C26

30

HWMUTE

FBP

1uF

PB3

4.7uF

OUTP

33

GND

3

3

GND

VCCP

AVDD

UM2800 - Rev 1

Figure 20. STEVAL-VUIDB01V1 schematic (3 of 3)

Schematic diagrams

page 23/34

UM2800

6 Bill of materials

Table 5. STEVAL-VOICE-UI bill of materials

Item Q.ty Ref. Part/Value Description ManµFacturer Order code

1 1

2 1

Item Q.ty Ref. Part/Value Description Manufacturer Order code

1 3 C3, C17, C27

2 1 C4

3 10

4 1 C8

5 3

6 2 C12, C15

7 1 C19

8 1 C23

9 1 C30

10 1 CN1 CON40A

11 1 CN2 CON40A

12 1 J1

13 1 J2

14 2 J3, J4

Table 6. STEVA
L-VUIMB02V1

Table 7. STEVA
L-VUIDB01V1

C5, C6, C7,
C9, C10,
C13, C14,
C16, C18,
C20

C11, C28,
C29

Main board ST Not available for separate sale

Daughter board ST Not available for separate sale

Table 6. STEVAL-VUIMB02V1 bill of materials

2.2µF, 0402 (1005
Metric)

15µF, 0402 (1005
Metric)

100nF, 0402 (1005
Metric)

1µF, 0402 (1005
Metric)

4.7µF, 0402 (1005
Metric)

6.8pF, 0402 (1005
Metric)

10µF, 0402 (1005
Metric)

3nH, 0402 (1005
Metric)

10nF, 0402 (1005
Metric)

FTSH-107-01-L-D-RA,
not mounted

CAP CER 2.2µF
10V X5R 0402

CAP CER 15µF

6.3V X5R 0402

CAP CER 0.1µF
16V X7R 0402

CAP CER 1µF
10V X5R 0402

CAP CER 4.7µF
10V X5R 0402

CAP CER 6.8PF
10V C0G/NP0
0402

CAP CER 10µF
10V X5R 0402

FIXED IND 3NH

1.35A 63 MOHM
SMD

Cap Ceramic

0.01µF 50V X7R
10% SMD 0402
125C Paper T/R

40pin B-to-B
Socket

40pin B-to-B
plug

RES SMD 0
OHM 0603

STDC14 - 90deg
TH

RES SMD 0
OHM 1206 or

2.54 Jumper

Wurth
Electronics Inc.

Murata GRM155R60J156ME05D

Murata
Electronics
North America

Taiyo Yuden JMK105BJ105KV-F

Murata
Electronics
North America

Murata
Electronics
North America

Samsung
Electro­Mechanics
America, Inc.

Murata LQW15AN3N0C80D

Murata GCM155R71H103KA55D

Hirose DF17(4.0)-40DS-0.5V(57)

Hirose DF17(2.0)-40DP-0.5V(57)

Yageo AC0603JR-070RL

Samtec FTSH-107-01-L-D-RA

Yageo AF1206JR-070RL

Wurth-885012105013

GRM155R71C104KA88J

GRM155R61A475MEAAD

GRM0225C1E6R8CA03L

CL05A106MP8NUB8

UM2800

Bill of materials

UM2800 - Rev 1

page 24/34

UM2800

Bill of materials

Item Q.ty Ref. Part/Value Description Manufacturer Order code

15 1 L1 2.2uH,

16 3 L2, R7, R9 Fixed resistors Vishay Dale CRCW04020000Z0ED

17 1 L3

18 2 R1, R2

19 2 R3, R6

20 1 R4

21 1 R5

22 1 R8

SB1, SB2,
SB3, SB8,
SB9, SB10,
SB11, SB12,

23 19

24 2 SW1, SW2 TDD01H0SB1R

25 1 U1

26 1 U2 LBEE5KL1DX‐883 Wi-Fi module Murata LBEE5KL1DX‐883

27 1 U3 IS25LP016D-JKLE Flash Micron MT25QL128ABA1EW7-0SIT

28 1 U4 ST1S12GR

29 1 U5 STM32H7x3VIT

30 1 X1 16MHz

31 1 X3

SB13, SB14,
SB15, SB16,
SB17, SB21,
SB24, SB30,
SB32, SB34,
SB36

4.7k, 0402 (1005
Metric)

10K, 0402 (1005
Metric)

15k, 0402 (1005
Metric)

68k, 0402 (1005
Metric)

3pF, 0402 (1005
Metric)

0R

STSAFE-A110, not
mounted

ECS-327MVATX-1­CN-TR

2.2 uH, 20%,

1.3A

Inductor, 2.2µH,
20%, Isat 0.35A,
DCR 0.2Ohm,
0603

RES SMD 4.7K
OHM 1% 1/16W
0402

RES SMD 10K
OHM 1% 1/16W
0402

RES SMD 15K
OHM 1% 1/16W
0402

RES SMD 68K
OHM 1% 1/16W
0402

CAP CER 3PF
50V C0G/NP0
0402

RES SMD 0
OHM 1% 1/16W
0402

SWITCH SLIDE
DIP SPDT 25MA
24V

Authentication,
state-of-the-art
security for
peripherals and
IoT devices

Step-down
switching
regulator

ARM Cortex-M7
core MCU

16.00MHz
Crystal 8pF

Wurth Wurth-74438323022

Murata LQM18PN2R2MGH

TE Connectivity
Passive Product

Yageo RC0402FR-0710KL

TE Connectivity
Passive Product

TE Connectivity
Passive Product

Murata GJM1555C1H3R0CB01D

Vishay Dale CRCW04020000Z0ED

ITT C&K TDD01H0SB1R

ST STSAFE-A110

ST ST1S12GR

ST STM32H753VIT6E

NDK

ECS
International

CRG0402F4K7

CRG0402F15K

CRG0402F68K

NX3225GA-16MHZ-STD­CRG-1

ECS-327MVATX-1-CN-TR

UM2800 - Rev 1

page 25/34

Table 7. STEVAL-VUIDB01V1 bill of materials

Item Q.ty Ref. Part/Value Description Manufacturer Part Number

1 1 CN1 CON40A

2 1 CN3 USB Type-C

C2,C3,C4,C5,

3 17

4 11

5 2 C13,C20

6 2 C14,C18

7 2 C15,C19

8 1 C22

9 1 C29

10 2 D1,D2

11 1 D3

12 2 J1,J8 CON5_0

13 1 J2 CON2

14 1 J3 GND, not mounted

15 1 J5

16 1 J7 SPKR

17 1 J9 STDC14

C6,C7,C8,C9,
C10,C12,C21,
C23,C26,C28,
C30,C34,C35

C11,C16,C17,
C24,C25,C27,
C31,C32,C33,
C36,C37

100nF, 0402 (1005
Metric), X7R V, 10
%,

1µF, 0402 (1005
Metric), X5R V, 10
%,

4.7µF, 0402 (1005
Metric), X5R V, 20
%,

330pF, 0402 (1005
Metric), C0G/NP0 V,
±5 %

3.3µF 10V, 0402
(1005 Metric), X5R
V, ±10 %

4.7nF, 0402 (1005
Metric), X7R V, ±10
%

330µF/25V, 8x8x10,
±20 %

ESDALC6V1-1U2,
ST0201

ESDA7P60-1U1M,
1610

CON14A, not
mounted

40pin B-to-B
plug

CAP CER

0.1UF 16V
X7R 0402

CAP CER X5R
0402

CAP CER 10V
X5R 0402

CAP CER
C0G/NP0 0402

CAP CER

3.3UF 10V
X5R 0402

CAP CER

4.7nF 10V X7R
0402

CAP ALUM
330UF 20%
25V SMD

Single-line low
capacitance
Transil for ESD
protection

High power
transient
voltage
suppressor

Header p2.54
M

Morsettiera a 2
vie, passo

2.54mm

Test Point
Through Hole

Morsettiera a 2
vie, passo

2.54mm

STDC14 ­ARM MIPI10
compatible

Hirose DF17(2.0)-40DP-0.5V(57)

Wurth Electronics
Inc

Murata
Electronics North
America

Taiyo Yuden JMK105BJ105KV-F

Murata
Electronics North
America

Murata
Electronics North
America

TDK C1005X5R1A335M050BC

Murata
Electronics North
America

Nichicon UUD1E331MNL1GS

ST ESDALC6V1-1U2

ST ESDA7P60-1U1M

Any

Amphenol VN02A1500000G

Any

Any

Amphenol VN02A1500000G

Samtec FTSH-107-01-L-DV-K

632723x00011

GRM155R71C104KA88J

GRM155R61A475MEAAD

GCM1555C1H331JA16D

GCM155R71H472KA37D

UM2800

Bill of materials

UM2800 - Rev 1

page 26/34

Item Q.ty Ref. Part/Value Description Manufacturer Part Number

18 1 LED1 Green, LED_0402 GREEN LED

19 1 LED2 Red, LED_0402 RED LED Any

20 1 LED3 Blue, LED_0402 BLUE LED Any

21 1 LED4 Orange, LED_0402 ORANGE LED Any

Fixed Inductors
10uH 20%

4.9A
45mOhms

MEMS audio
sensor multi­performance
mode digital
microphone

Push Button
Black

RGB LEDs OSRAM

RES SMD 1K
OHM 1%
1/16W 0402

RES SMD 390
OHM 1%
1/16W 0402

RES SMD 5k1
OHM 1%
1/16W 0402

RES SMD 560
OHM 1%
1/16W 0402

RES SMD 100
OHM 1%
1/16W 0402

RES SMD 0
OHM 1%
1/16W 0402

RES SMD 10K
OHM 1%
1/16W 0402

RES SMD 10
OHM 1%
1/16W 0402

RES SMD 51
OHM 1%
1/16W 0402

RES SMD

49.9K OHM
1% 1/16W
0402

22 2 L1,L2

23 3 M1,M2,M3

24 1 RESET

25 4

26 2 R2,R7

27 1 R3

28 2 R4,R5

29 1 R6

30 1 R8

31 4

32 5

33 2 R15,R17

34 2 R16,R18

35 2 R19, R23

RGB1,RGB2,
RGB3,RGB4

R9,R10,R11,R
12

R13,R14,R20,
R21,R22

XAL5050-103ME,
6x6

MP23DB01HP,
RHLGA 3.5x2.65

SW PUSHBUTTON­SPST-2,

4.2x3.2x2.5mm

1k, 0402 (1005
Metric), 100ppm/C
V, ±1 %

390R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

5k1, 0402 (1005
Metric), 100ppm/C
V, ±1 %

560R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

100R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

0R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

10k, 0402 (1005
Metric), 100ppm/C
V, ± 1 %

10R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

51R, 0402 (1005
Metric), 100ppm/C
V, ±1 %

49.9K, 0402 (1005
Metric), 100ppm/C
V, ±1 %

Panasonic
Electronic
Components

COILCRAFT XAL5050-103ME

ST MP23DB01HP

ALPS SKRPADE010

Yageo RC0402FR-071KL

Yageo RC0402FR-07390RL

Yageo RC0402JR-075K1L

Yageo RC0402FR-07560RL

Yageo RC0402JR-07100RL

Vishay Dale CRCW04020000Z0ED

Yageo RC0402FR-0710KL

Yageo RC0402JR-0710RL

Yageo RC0402JR-0751RL

Yageo RC0402FR-0749K9L

LNJ347W83RA

LRTBR48G­P9Q7-1+R7S5-26+N5P-68

UM2800

Bill of materials

UM2800 - Rev 1

page 27/34

Item Q.ty Ref. Part/Value Description Manufacturer Part Number

36 1 R24

SB3,SB4,SB6

37 10

38 4

39 1 SW1 Joystick Alps SKRHADE010

40 1 TP1 TH

41 2 TP2,TP3 TH, not mounted

42 1 USR

43 1 U1 ESDA6V1-5SC6 ESD Protection ST ESDA6V1-5SC6

44 1 U2 FDA903D

45 1 U3

46 1 U4

,SB7,SB9,SB
10,SB11,SB12
,SB13,SB14

SB5,SB8,SB1
5,SB16

499K, 0402 (1005
Metric), 100ppm/C
V, ±1 %

0R, 0402 (1005
Metric), Jumper

NC, 0402 (1005
Metric) Jumper, not
mounted

SPST-2,

4.2x3.2x2.5mm

HSP061-2N4,
uQFN-4L

LED1202, QFN20
3x3

RES SMD

49.9K OHM
1% 1/16W
0402

RES SMD 0
OHM 1%
1/16W 0402

RES SMD 0
OHM 1%
1/16W 0402

Test Point
Through Hole

Test Point
Through Hole

Push Button ALPS SKRPABE010

Class D digital
input
automotive
audio amplifier

2-line ESD
protection for
high speed
lines

12-channel
current LED
driver

Yageo RC0402FR-0749K9L

Vishay Dale CRCW04020000Z0ED

Vishay Dale CRCW04020000Z0ED

Keystone
Electronics

Any

ST FDA903D

ST HSP061-2N4

ST LED1202QTR

5001

UM2800

Bill of materials

UM2800 - Rev 1

page 28/34

Revision history

UM2800

Table 8. Document revision history

Date Version Changes

18-Nov-2020 1 Initial release.

UM2800 - Rev 1

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UM2800

Contents

Contents

1 Overview ..........................................................................2

1.1 Kit components ................................................................2

1.2 Functional block diagram ........................................................2

1.3 System requirements ...........................................................3

1.4 Development toolchains .........................................................3

1.5 Power supply ..................................................................3

1.6 User interfaces ................................................................4

2 Demo firmware ....................................................................5

2.1 Pre-requisites..................................................................5

2.2 Device setup ..................................................................5

2.2.1 Android users ...........................................................5

2.2.2 Other users - HTTP UI ....................................................6

2.3 Device registration .............................................................8

2.4 Privacy mode.................................................................10

2.5 Alarms ......................................................................10

2.6 Amazon music control .........................................................10

2.7 LED UI animations ............................................................10

2.8 Buttons and joystick ...........................................................12

2.9 Network switching .............................................................12

2.10 Factory reset .................................................................13

2.11 Log traces and STLINK-V3MINI connection .......................................13

3 Kit layout .........................................................................14

3.1 STEVAL-VUIMB02V1 mother board layout ........................................14

3.2 STEVAL-VUIDB01V1 daughter board layout .......................................15

4 Main devices .....................................................................16

4.1 STM32H753VIT6E ............................................................16

4.2 ST1S12GR...................................................................16

4.3 STSAFE-A110 (footprint only) ...................................................16

4.4 FDA903D ....................................................................16

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UM2800

Contents

4.5 LED1202 ....................................................................17

4.6 HSP061-2....................................................................17

5 Schematic diagrams ..............................................................18

6 Bill of materials...................................................................24

Revision history .......................................................................29

UM2800 - Rev 1

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UM2800

List of figures

List of figures

Figure 1. STEVAL-VOICE-UI voice user interface evaluation kit .........................................1

Figure 2. STEVAL-VOICE-UI functional block diagram ...............................................2

Figure 3. STEVAL-VOICE-UI power supply block diagram .............................................3

Figure 4. STEVAL-VOICE-UI user interfaces ...................................................... 4

Figure 5. stvsSmartConfig procedure ...........................................................6

Figure 6. STVS user interface ................................................................7

Figure 7. CBL device registration code ..........................................................9

Figure 8. Amazon sign-in page................................................................9

Figure 9. Register device page................................................................9

Figure 10. Successful registration.............................................................. 10

Figure 11. STEVAL-VUIMB02V1 layout (top view) .................................................. 14

Figure 12. STEVAL-VUIMB02V1 layout (bottom view)................................................ 14

Figure 13. STEVAL-VUIDB01V1 layout (top view) .................................................. 15

Figure 14. STEVAL-VUIDB01V1 layout (bottom view) ................................................ 15

Figure 15. STEVAL-VUIMB02V1 schematic (1 of 3) ................................................. 18

Figure 16. STEVAL-VUIMB02V1 schematic (2 of 3) .................................................19

Figure 17. STEVAL-VUIMB02V1 schematic (3 of 3) .................................................20

Figure 18. STEVAL-VUIDB01V1 schematic (1 of 3) .................................................21

Figure 19. STEVAL-VUIDB01V1 schematic (2 of 3) .................................................22

Figure 20. STEVAL-VUIDB01V1 schematic (3 of 3) .................................................23

UM2800 - Rev 1

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UM2800

List of tables

List of tables

Table 1. Power supply options .................................................................3

Table 2. RGB LED animations indicating device state ................................................ 10

Table 3. User button ....................................................................... 12

Table 4. Joystick default mapping.............................................................. 12

Table 5. STEVAL-VOICE-UI bill of materials ...................................................... 24

Table 6. STEVAL-VUIMB02V1 bill of materials ..................................................... 24

Table 7. STEVAL-VUIDB01V1 bill of materials ..................................................... 26

Table 8. Document revision history ............................................................. 29

UM2800 - Rev 1

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UM2800

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UM2800 - Rev 1

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