STMicroelectronics STEVAL-MKI231KA Industrial Board Instruction Manual
- May 15, 2024
- STMicroelectronics
Table of Contents
STMicroelectronics STEVAL-MKI231KA Industrial Board
Specifications
- ST sensor with Qvar. example of products: STHS34PF80
- Evaluation board: STEVAL-MKI231KA
- Optical lens: TMOS63-10
- Low-power, high-sensitivity infrared (IR) sensor for presence and motion detection
- The evaluation kit is composed of STHS34PF80 industrial board and standard DIL24 adapter
- Pir sensor fresnel lens
Product Usage Instructions
Purpose and Benefits
The STHS343PF80 demo kit includes an electronic section (evaluation board,
interface for DIL24, interface cable) and a mechanical section (planned
plastic holder screws and nuts) along with a TMOS63-10 lens from a fresnel
factory.
Mounting Holder
The PF63-10 lens has two different surfaces: one smooth and the other
rough. The holder consists of three parts:
- Base holder for placing the PCB containing the sensor (STEVAL-MKI231AA board)
- Lens positioning for holding the lens in the correct location
- Holder closure to secure the lens position
The smooth part of the lens should face outward to capture light effectively. The holder has an insertion key that should align with the top of the board near the connector.
Final Mounting
After mounting the holder, secure it using screws at the bottom and nuts at
the top. Consider using adhesive to prevent variations in thickness at the
base of the holder.
FAQ
Q: Can I use the STHS34PF80 without the lens?
A: While possible, it has been verified that using a lens can enhance
performance in certain applications.
Q: What is the purpose of the insertion key in the holder?
A: The insertion key helps in the proper alignment and positioning of the lens
on the board.
Introduction
The STEVAL-MKI231KA electronic part must be manually assembled to have better
performance in terms of data acquisition. It is possible to use STHS34PF80
itself but has been verified that in some applications, the performance is
better if a lens is applied over the sensor. The purpose of the holder is to
maintain the correct distance between the lens and sensor as per the figure
below:
Main components
Main components
ST sensor with Qvar. example of products
STHS34PF80| Low-power, high-sensitivity infrared (IR) sensor for presence and
motion detection
Evaluation board
STEVAL-MKI231KA| Evaluation kit composed by STHS34PF80 industrial board and
standard DIL24 adapter
OpticaL lens
TMOS63-10| Pir sensor fresnel lens
Purpose and benefits
The STHS343PF80 demo kit is composed by an electronic section (evaluation
board, interface for DIL24, interface cable), and mechanical section
(unplanned plastic holder screws and nuts) and a particular lens TMOS63-10
coming from a fresnel factory.
Mounting holder
The PF63-10 lens has been designed with two different surfaces: one part is
smooth and the other face is rough.
The holder is created with a special black resin and it is composed by three
parts:
- Base holder where is possible to place the PCB containing the sensor (STEVAL-MKI231AA board)
- Lens positioning where is possible to hold the lens in the proper location
- Holder closure is the part of the holder that closes the lens position and lens
Figure 3. Commercial electrode for seat occupancy detection
The smooth part is the part that captures the light and for this reason, must
be put versus the external respect to the board.
Lens positioning and holder closure have a proper insertion key visible at the
bottom. This “special” must be put in the top of the board close to the
connector.
The final solution after mounting is shown in the next picture
:
It is possible to put the screws on the bottom side (and nuts on the top). In this last case, it is possible to lock the system using a proper adhesive avoiding different thicknesses on the base of the holder.
Revision history
| Date | Revision | Changes |
|---|---|---|
| 08-Feb-2024 | 1 | Initial release. |
IMPORTANT NOTICE – READ CAREFULLY
- STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold under ST’s terms and conditions of sale in place at the time of order acknowledgment.
- Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products.
- No license, express or implied, to any intellectual property right is granted by ST herein.
- Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
- ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks. All other product or service names are the property of their respective owners.
- Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2024 STMicroelectronics – All rights reserved
AN6074 – Rev 1 – February 2024
For further information contact your local STMicroelectronics sales office.
www.st.com
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>