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STEVAL-MKI141V2
HTS221 humidity sensor adapter board for standard DIL24 socket
(full pinout)
Data brief
Description
The STEVAL-MKI141V2 is an adapter board
designed to facilitate the evaluation of MEMS
devices in the HTS221 product family. The board
offers an effective solution for fast system
prototyping and device evaluation directly within
the user’s own application.
The board also offers an example reference
design for custom PCB implementation.
The STEVAL-MKI141V2 can be plugged into a
standard DIL 24 socket. The adapter provides the
full HTS221 pinout and comes ready-to-use with
the required decoupling capacitors on the VDD
power supply line.
Features
• Complete HTS221 pinout (SPI & I²C interface)
for a standard DIL 24 socket
• Fully compatible with STEVAL-MKI109V2
motherboard
• RoHS compliant
This adapter is supported by the STEVALMKI109V2 motherboard which includes a highperformance 32-bit microcontroller functioning as
a bridge between the sensor and a PC, on which
it is possible to use the downloadable graphical
user interface (Unico GUI), or dedicated software
routines for customized applications.
The STEVAL_MKI109V2 must be upgraded to
eMotion V3.0.7 FW or later, and the Unico GUI
must be rel. 3.0.1.6beta or later.
Note that to obtain accurate measurements, it is
recommended to connect the STEVAL-MKI141V2
to the STEVAL-MKI109V2 using cables of 20-30
cm in length, in order to exclude any thermal
effects from devices on the main board.
March 2014
DocID026084 Rev 1
For further information contact your local STMicroelectronics sales office.
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Schematic diagram
1
STEVAL-MKI141V1
Schematic diagram
Figure 1. STEVAL- MKI141V2 circuit schematic
VDD
R1
Do not mount
CS
CS
U1
HTS221
VDD
1
SCL
2
VDD
GND
SCL
SDA
5
GND
4
SDA
VDD
3
GND
C2
2.2uF
INT
C1
100nF
6
VDD
R2
Do not mount
DocID026084 Rev 1
JP1
1
2
3
4
5
6
7
8
9
10
11
12
JP2
24
23
22
21
20
19
18
17
16
15
14
13
Header 12Header 12
INT
2/4
VDD
SDA
SCL
CS
INT
GND
STEVAL-MKI141V1
2
Revision history
Revision history
Table 1. Document revision history
Date
Revision
17-Mar-2014
1
Changes
Initial release.
DocID026084 Rev 1
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STEVAL-MKI141V1
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