ST STEVAL-C34KAT2 Manuel utilisateur

Introduction

The STEVAL-C34KAT2 is a multisensing expansion kit that includes the STEVAL-C34AT02 expansion board and a flex cable.

The ISM330IS sensor is soldered at the center of the small 25 x 25 mm board. The STTS22H temperature sensor is placed on

the PCB side and is thermally coupled to the PCB bottom exposed pad through vias.

The ISM330IS is a system-in-package featuring a 3-axis digital accelerometer and a 3-axis digital gyroscope, boosting

performance at 0.59 mA in high-performance mode and enabling always-on low-power features for optimal motion results in

industrial and IoT solutions.

The ISM330IS embeds a new ST category of processing intelligent sensor processing unit (ISPU) to support real-time

applications that rely on sensor data.

The ISPU is an ultra-low-power, high-performance programmable core, which can execute signal processing and AI algorithms

in the edge. The main benefits of the ISPU are C programming and an enhanced ecosystem with libraries and third-party tools/

IDE.

Its optimized ultra-low-power hardware circuitry for real-time execution of the algorithms is a state-of-the-art feature for any

wireless sensor node from small equipment or accessories to enterprise solutions for industry 5.0 (anomaly detection, asset

tracking, factory automation).

The expansion board can be mounted on the equipment for the vibration analysis using the four holes or the double-sided

adhesive tape. This board is compatible with the STWIN.box kit (STEVAL-STWINBX1).

Figure 1. STEVAL-C34KAT2 expansion kit

Getting started with the STEVAL-C34KAT2, iNemo inertial module with

embedded ISPU and temperature sensor expansion kit

UM3192

User manual

UM3192 - Rev 1 - September 2023

For further information contact your local STMicroelectronics sales office. www.st.com

1 Features

• Kit content:

– a STEVAL-C34AT02 multisensing expansion board (25x25mm) with a 34-pin board-to-FPC

connector

– a 34-pin flex cable

• Ideal plug-in for the STEVAL-STWINBX1 evaluation board

• iNEMO inertial module with embedded ISPU (ISM330IS):

– 3-axis accelerometer with selectable full scale: ±2/±4/±8/±16 g

– 3-axis gyroscope with selectable full scale: ±125/±250/±500/±1000/±2000 dps

– Embedded ISPU: ultra-low-power, high-performance programmable core to execute signal

processing and AI algorithms in the edge for a seamless digital-life experience

– Low-power consumption: 0.59 mA in high-performance mode, 0.46 mA in low-power mode

(gyroscope + accelerometer only, ISPU not included)

• Low-voltage, ultra-low-power, 0.5°C accuracy I²C/SMBus 3.0 temperature sensor (STTS22H)

– Programmable thresholds through an interrupt pin

– Ultra-low current: 1.75 µA in one-shot mode

– Operating temperature -40 to +125°C

• Exposed pad on the bottom side to improve the thermal coupling for the temperature sensor

• 1.8 to 3.3 V power supply input

UM3192

Features

UM3192 - Rev 1 page 2/17

2 Precautions for use

Important: This kit is not immune to indirect electrostatic discharges. During the ESD test, the kit has obtained level C. This

means that the expansion board has not been damaged during the test, but the intervention of the operator was

necessary to reset it. When an electrostatic discharge is applied to an adjacent object, the board might interrupt

its functioning. In this case, the intervention of an operator is required to reset the board (that is, to unplug and

replug the power supply line).

If the board is attached to a STEVAL-STWINBX1 (STWIN.box), you can control the power supply of the external

34-pin connector via software, by leveraging the power switch functionality of the STBC02 battery charger IC.

UM3192

Precautions for use

UM3192 - Rev 1 page 3/17

3 How to use the kit

The STEVAL-C34KAT2 expansion board can be used with the STEVAL-STWINBX1 kit (STWIN.box).

The device can be attached to the STWIN.box using the provided flex cable, through the 34-pin connectors

available on both platforms.

Figure 2. Expansion board and flex cable

To plug the flex cable onto the STWIN.box, remove the plastic case cover.

Figure 3. Plugging the flex cable onto the STWIN.box

You can then remount the cover, as it leaves enough space for the flex cable.

Figure 4. Final setup

The easiest way to read data from the STEVAL-C34KAT2 sensors is to flash the STWIN.box with the FP-SNS-

DATALOG2 function pack. The firmware package provides a ready to use, precompiled binary to perform sensor

data acquisition.

UM3192

How to use the kit

UM3192 - Rev 1 page 4/17

Note: Please be careful when you remove the flex cable as you may damage it. The safest way to remove it is by

pulling it next to the connectors using tweezers.

Figure 5. How remove the flex cable

UM3192

How to use the kit

UM3192 - Rev 1 page 5/17

4 Adhesive tape

The kit provides a few samples of 3M™ 9088 high performance, double coated tape. These samples can be used

to mount the board on the equipment for vibration analysis.

Alternatively, you can mount the board through the holes located at each corner of the PCB.

Figure 6. Adhesive tape

UM3192

Adhesive tape

UM3192 - Rev 1 page 6/17

5 Schematic diagrams

Figure 7. STEVAL-C34KAT2 circuit schematic: STEVAL-C34AT02

iNemo 3xAcc + 3xGyro + ISPU

I 2C Addr : 0111000b

Temperature

Orientation:

odd pins should be on the side of the bcp

VDD

VDD_U2 VDD

VDD_U2

TVS1

ESDALC6V1-1M2

SB4 0R

R4 0R

SB100R

SB70R

R3 0R

U2 STTS22HTR

SDA 6

Addr 4

SCL 1

VDD

GND

5INT 2

EXP

10uF

7.5k

GND

R2 0R

330pF

SB30R

U1 ISM330IS

GND1

6VDDIO

INT1

4SCx

3SDx

2SDO/SA0

VDD 8

INT2 9

OCS_Aux 10

SDO_Aux 11

CS 12

SCL 13

GND2

SDA 14

SB1NC

100nF

SB2NC

SB9NC

100nF

SB80R

CN1

CON34-Plug

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

21 22

23 24

25 26

27 28

29 30

31 32

33 34

100nF

SB6NC

330pF

SB5NC

R6 0R

R5 0R

R7 0R

SPI_CS

SPI_CLK

SPI_MOSI

SPI_MISO

I2C_SCL

I2C_SDA

U2_INT

I2C_SCL

SPI_MISO

SPI_MOSI

SPI_CS

C34_INT1

SPI_CLK

C34_INT2

I2C_SDA

C34_INT2

C34_INT1U1_INT2

U1_INT1

U1_INT2 C34_INT1

U2_INT C34_INT2

C34_INT2

34 pin-expansion

connector

UM3192 - Rev 1 page 7/17

UM3192

Schematic diagrams

Figure 8. STEVAL-C34KAT2 circuit schematic: STEVAL-FLTCB02

Assembly on bottom

CON34-Socket

910 1112

1314

1516

1718

1920 2122

2324

2526

2728

2930 3132

3334

CON34-Header

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

21 22

23 24

25 26

27 28

29 30

31 32

33 34

CON34-Socket

910 1112

1314

1516

1718

1920 2122

2324

2526

2728

2930 3132

3334

34 33

32 31

30 29

28 27

26 25

24 23

22 21

20 19

18 17

16 15

14 13

12 11

10 9

8 7

6 5

4 3

2 11

UM3192 - Rev 1 page 8/17

UM3192

Schematic diagrams

6 Bill of materials

Table 1. STEVAL-C34KAT2 bill of materials

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

1 1

Table 2. Expansi

on board bill of

materials

STEVAL-

C34AT02

Vibrometer and

temperature

expansion board

ST Not available for

separate sale

2 1

Table 3. Flex

cable bill of

materials

STEVAL-

FLTCB02

34-pin, 15 cm

flex cable ST Not available for

separate sale

34- 3M 9088 - 25x25

mm, 25x25 mm

3M™ high-

performance,

double coated

tape

3M 9088

Table 2. Expansion board bill of materials

Item Q.ty Ref. Value Description Manufacturer Order code

1 1 CN1 CON34-Plug

CONN SOCKET

34POS SMD

GOLD

8Panasonic

Electric Works AXF6G3412A

2 C1,C2,C3 C1,C2,C3

100nF, 0402

(1005 Metric),

+/-10%

CAP CER 0.1UF

16V X7R 0402

Murata

Electronics North

America

GRM155R71C104KA8

3 1 C4

'10uF, 0402

(1005 Metric),

+/-20%

CAP CER 10UF

10V X5R 0402

Samsung

Electro-

Mechanics

America, Inc.

CL05A106MP8NUB8

4 2 C5,C6

330pF, 0402

(1005 Metric),

+/-10%

CAP CER 330pF

Murata

Electronics North

America

GRM1555C1H331GA0

5 1 GND TP (not

mounted)

TEST POINT

1MM SMD

PADSTASCK

6 1 R1 7.5k, 0402 (1005

Metric), +/-5%

RES SMD 7.5K

OHM 5% 1/16W

0402

Yageo RC0402JR-077K5L

7 10

R2,SB3,R3,R4,R

5,R6,SB7,R7,SB

8,SB10

0R, 0402 (1005

Metric)

RES SMD 0

OHM 0402 Vishay Dale CRCW04020000Z0ED

85SB1,SB2,SB5,S

B6,SB9

NC, 0402 (1005

Metric), (not

mounted)

RES SMD 0

OHM 0402 Vishay Dale CRCW04020000Z0ED

9 1 SB4 0R, 1206 CHIP RES. 0R

1206 1/4W 5% Yageo AF1206JR-070RL

10 1 TVS1 ESDALC6V1-1M

2, SOD882

DIODO TVS

TRANSIL

UNIDIR. 50W

6.1V

ST ESDALC6V1-1M2

11 1 U1 ISM330ISNTR,

LGA-14L

Accelerometor

Ultra Wide

Bandwidth

ST ISM330ISNTR

12 1 U2 STTS22HTR,

UDFN-6L

Digital

temperature

sensor

ST STTS22HTR

UM3192

Bill of materials

UM3192 - Rev 1 page 9/17

Table 3. Flex cable bill of materials

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

1 1 J1

CON34-Socket,

1 A/pin (for

power) 0.5 A/pin

(for signal)

CONN SOCKET

34POS SMD

GOLD

Panasonic

Electric Works AXF5G3412A

2 1 J3

CON34-Socket,

1 A/pin (for

power) 0.5 A/pin

(for signal)

CONN SOCKET

34POS SMD

GOLD

Panasonic

Electric Works AXF5G3412A

3 1 J2

CON34-Header,

1 A/pin (for

power) 0.5 A/pin

(for signal)

CONN HDR

34POS SMD

GOLD

Panasonic

Electric Works AXF6G3412A

41FLEX PCB, Not

Reference

FLEX PCB 3

LAYER, size

9.95x150x0.337

FLEX Support-

DUPONT Kapton

Polyimide Film

DUPONT

UM3192

Bill of materials

UM3192 - Rev 1 page 10/17

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