STMicroelectronics STEVAL-MKI245KA

Overview

STEVAL-MKI245KA from STMicroelectronics is a demonstration board kit comprising the ISM330BX 6-axis inertial measurement unit (IMU), mounted on a square PCB with precise center alignment for adhesive or mechanical mounting, and connected via flat cable to the STEVAL-MKIGI06A DIL24 adapter board. It delivers wide-bandwidth (up to 6.7 kHz accelerometer ODR), low-noise (70 µg/√Hz) motion sensing, embedded sensor fusion, and AI-capable edge processing for industrial condition monitoring.

For engineers reviewing the STEVAL-MKI245KA datasheet, STEVAL-MKI245KA pinout, STEVAL-MKI245KA application, or STEVAL-MKI245KA equivalent, this kit enables rapid evaluation of the ISM330BX IMU's real-time orientation estimation, vibration analytics, and machine learning inference capabilities when interfaced with STM32-based platforms including STEVAL-MKI109D, X-NUCLEO-IKS02A1, and STEVAL-STWINBX1.

Technical Context

The kit implements a two-board architecture: the STEVAL-MKI245A carrier hosts the ISM330BX in a 14-pin LGA package with dedicated decoupling (1 µF + 100 nF on VDD/VDDIO), while the STEVAL-MKIGI06A provides full DIL24 socket compatibility and exposes all 14 ISM330BX signals-including dual interrupt outputs (INT1/INT2), I²C (SCL/SDA), SPI (CS/SDO/SDA), and advanced timing interfaces (BCLK/WCLK/TDMOUT).

It supports both I²C and SPI host communication, features configurable FIFO with 8 kB depth, hardware-accelerated finite-state machine (FSM) with up to 16 states, and machine learning core (MLC) capable of running user-trained decision trees directly on sensor data-enabling autonomous anomaly detection without host CPU intervention.

Key Specifications

Availability

STEVAL-MKI245KA is available at Aetrix Electronics and suitable for industrial condition monitoring, predictive maintenance prototyping, and edge AI sensor development requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for STEVAL-MKI245KA 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, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and analog devices for industrial, automotive, and consumer applications.

The STEVAL-MKI245KA belongs to ST's professional MEMS evaluation tool family, engineered specifically to accelerate development of intelligent motion-sensing systems using their high-performance IMUs with embedded AI and sensor fusion capabilities.

FAQ

What host platforms is STEVAL-MKI245KA compatible with?

STEVAL-MKI245KA is natively supported by the STEVAL-MKI109D evaluation platform (STM32-based bridge), and also plugs directly into X-NUCLEO-IKS02A1 and STEVAL-STWINBX1 (STWIN.box). Its DIL24 adapter interface ensures compatibility with any custom carrier board implementing the same pinout and voltage levels.

Does the kit include firmware or software tools?

Yes - the kit is fully supported by ST's MEMS Studio GUI (Windows/macOS/Linux), which provides real-time sensor data visualization, register configuration, MLC/FSM setup, and firmware update capability. ST also provides open-source drivers and example code for STM32Cube and Arduino IDE.

Can the ISM330BX on this board run machine learning models independently?

Yes - the ISM330BX integrates a programmable Machine Learning Core (MLC) that executes trained decision trees directly on-chip. The STEVAL-MKI245KA enables full access to MLC registers and memory, allowing users to deploy custom models for tasks like bearing fault classification or motor imbalance detection without host CPU involvement.

What mounting options does the PCB provide?

The STEVAL-MKI245A board features a symmetrical square layout with the ISM330BX centered for optimal inertial measurement. It supports double-sided adhesive mounting for temporary equipment attachment, and includes four corner mounting holes (M2.5) for permanent mechanical fixation using screws or standoffs.