ST STEVAL-C34KAT2 Manuale utente
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
VDD
VDD
VDD
VDD
VDD_U2 VDD
VDD_U2
VDD_U2
TVS1
ESDALC6V1-1M2
12
SB4 0R
R4 0R
SB100R
SB70R
R3 0R
U2 STTS22HTR
SDA 6
Addr 4
SCL 1
VDD
3
GND
5INT 2
EXP
7
C4
10uF
R1
7.5k
GND
R2 0R
C5
330pF
SB30R
U1 ISM330IS
GND1
6VDDIO
5
INT1
4SCx
3SDx
2SDO/SA0
1
VDD 8
INT2 9
OCS_Aux 10
SDO_Aux 11
CS 12
SCL 13
GND2
7
SDA 14
SB1NC
C1
100nF
SB2NC
SB9NC
C3
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
C2
100nF
SB6NC
C6
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_INT2
C34_INT1U1_INT2
U1_INT1
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
J3
CON34-Socket
12
34
56
78
910 1112
1314
1516
1718
1920 2122
2324
2526
2728
2930 3132
3334
J2
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
J1
CON34-Socket
12
34
56
78
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
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
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
8J
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
1D
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
mm
FLEX Support-
DUPONT Kapton
Polyimide Film
DUPONT
UM3192
Bill of materials
UM3192 - Rev 1 page 10/17
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