How to develop context-aware applications with STEVAL-MKI109D

Summary

This article showcases the recently released STEVAL-MKI109D evaluation board, designed for all ST MEMS sensors. This evaluation board can be used to evaluate a sensor for a new application, analyze data from different sensors, and build and test a configuration for ST MEMS sensors. Users can thus develop context-aware applications with MEMS sensors more quickly, powerfully and flexibly.

Introduction

The new STEVAL-MKI109D board is the new evaluation board for all ST MEMS sensors and it allows:

• Plugging different MEMS sensors through DIL24 adapter boards.
• Showing sensor outputs in a graphical user interface, perform data logging and data analysis.

Figure 1: MEMS Studio - Sensor Evaluation, Line Charts

• Setting up a sensor configuration, or configuring the advanced features available in the latest MEMS sensors.

Figure 2: MEMS Studio - Sensor Evaluation, FFT

The STEVAL-MKI109D is the successor of the STEVAL-MKI109V3, and it continuously supports functionalities like:

• A programmable voltage power supply.
• An on-board dedicated circuitry for current measurement tests.
• Communication protocol changes on the fly.

Figure 3: MEMS Studio - Sensor Evaluation, switch communication interface

Compared to the previous STEVAL-MKI109D generation, some additional features are available:

Figure 4: STEVAL-MKI109D

• A STM32H5 MCU controls the board. 
• A USB Type-C® cable establishes a connection to the PC.

Figure 5: Connecting STEVAL-MKI109D to the PC through a USB type C cable

• STEVAL-MKI109D now supports I3C in addition to I²C, SPI, and TDM.
• An SD card slot is available on the back side of the board.

Figure 6: An SD-card slot is available on STEVAL-MKI109D

• The board can be programmed with different tools like STM32CubeProgrammer or MEMS.

Exploring STEVAL-MKI109D with MEMS-Studio

Plug an ST MEMS DIL24 adapter board on the STEVAL-MKI109D, as shown in the following figure. You can choose one among the large portfolio of adapters which ST offers for every sensor in production.
For example, here we use the STEVAL-MKI227KA DIL24 adapter board with the LSM6DSV16X. 

Figure 7: STEVAL-MKI227KA with LSM6DSV16X  plugged on STEVAL-MKI109D

Now MEMS-Studio and select STEVAL-MKI227KA (LSM6DSV16X) as the device name, shown in the picture below: