STMicroelectronics STEVAL-MKI209V1K

Overview

STEVAL-MKI209V1K from STMicroelectronics is a ready-to-use evaluation board for the IIS2ICLX high-accuracy 2-axis digital inclinometer, featuring embedded machine learning core, 0.005° resolution, ±180° measurement range, and I²C/SPI interface. It mounts directly onto equipment for vibration analysis or industrial alignment tasks using included double-sided adhesives or corner mounting holes.

For engineers reviewing the STEVAL-MKI209V1K datasheet, STEVAL-MKI209V1K pinout, STEVAL-MKI209V1K application, or STEVAL-MKI209V1K equivalent, this board provides full IIS2ICLX signal access via DIL24 socket compatibility, integrated decoupling (1 µF + dual 100 nF), and seamless integration with the STEVAL-MKI109D host platform and MEMS Studio GUI.

Technical Context

The STEVAL-MKI209V1K is an adapter board that hosts the IIS2ICLX sensor and routes all its pins-including INT1/INT2 interrupt outputs, SDO/SDA/SCL/CS I²C/SPI signals, VDD/VDDIO power rails, and GND-to a standard 24-pin DIL socket via flat-cable connection to STEVAL-MKIGIBV2. It includes 1 kΩ pull-up resistors on INT1/INT2 and 33 Ω series resistors on SDA/SCL/SDO lines for signal integrity.

This board operates as a mechanical and electrical interface layer: it positions the IIS2ICLX precisely at PCB center for stable tilt sensing, provides dedicated decoupling (C1/C2/C3), and enables plug-and-play use with STEVAL-MKI109D's 32-bit microcontroller bridge, supporting real-time data streaming and ML-core configuration via MEMS Studio.

Key Specifications

Availability

STEVAL-MKI209V1K is available at Aetrix Electronics and suitable for industrial vibration monitoring, precision equipment leveling, MEMS-based structural health assessment, and factory automation calibration requiring stable component supply and rapid prototyping capability.

Supply support for STEVAL-MKI209V1K includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power ICs, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

The STEVAL-MKI209V1K belongs to ST's professional MEMS evaluation tool family, engineered specifically to accelerate development of inclinometer-based condition monitoring, predictive maintenance, and smart industrial asset management systems.

FAQ

Does STEVAL-MKI209V1K include the IIS2ICLX sensor?

Yes. The board integrates the IIS2ICLX inclinometer sensor soldered at the PCB center. It is not a bare adapter-it is a complete, functional evaluation node with power filtering, signal routing, and mechanical mounting features pre-installed.

What host platforms is STEVAL-MKI209V1K compatible with?

It is fully compatible with the STEVAL-MKI109D evaluation platform via flat-cable connection to STEVAL-MKIGIBV2. The MKI109D provides USB-to-I²C/SPI bridging, real-time data acquisition, and MEMS Studio GUI integration-no additional firmware or drivers required.

Can STEVAL-MKI209V1K operate standalone without STEVAL-MKI109D?

No. The board lacks onboard MCU, USB interface, or firmware. It requires connection to STEVAL-MKI109D (or equivalent host with compatible DIL24 socket and I²C/SPI control) to configure the IIS2ICLX, read data, or access its machine learning core.

What software tools support STEVAL-MKI209V1K?

ST's free MEMS Studio graphical user interface fully supports this board when used with STEVAL-MKI109D. It enables real-time sensor data visualization, register configuration, machine learning core training, and export of calibrated tilt measurements in CSV format.