STMicroelectronics STEVAL-MKI184V1

Overview

STEVAL-MKI184V1 from STMicroelectronics is a DIL24 socket-compatible adapter board for the ISM303DAC 3-axis accelerometer and 3-axis magnetometer, providing full pin access, on-board decoupling (10 µF + 220 nF + 2×100 nF), and direct plug-in capability into the STEVAL-MKI109V3 motherboard for sensor evaluation and eCompass prototyping.

For engineers reviewing the STEVAL-MKI184V1 datasheet, STEVAL-MKI184V1 pinout, STEVAL-MKI184V1 application, or STEVAL-MKI184V1 equivalent, this board enables rapid integration of ISM303DAC-based motion sensing in embedded navigation, tilt-compensated compassing, and industrial orientation systems using Unico GUI on Windows, Linux, or macOS.

Technical Context

The board implements a passive breakout interface with no active logic or signal conditioning - all ISM303DAC signals (SCL, SDA, CS_XL, INT1_XL, INT2_XL, DRDY_MAG, INT_MAG, VDD, VDDIO, GND) are routed 1:1 to dual-row DIL24 headers. Power filtering includes bulk (10 µF) and high-frequency (220 nF, 2×100 nF) decoupling per ST's ISM303DAC layout recommendations.

It is mechanically and electrically designed for interoperability with the STEVAL-MKI109V3 motherboard's DIL24 sensor carrier slot, enabling I²C/SPI communication via the onboard STM32F401RE MCU bridge and real-time data streaming to PC-hosted Unico GUI for register-level configuration and live sensor output visualization.

Key Specifications

Availability

STEVAL-MKI184V1 is available at Aetrix Electronics and suitable for embedded motion sensing, eCompass development, and industrial orientation prototyping requiring stable component supply and immediate evaluation readiness.

Supply support for STEVAL-MKI184V1 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.

This board belongs to ST's STEVAL sensor evaluation platform family, engineered to accelerate time-to-prototype for MEMS motion sensors by delivering standardized, GUI-ready hardware interfaces aligned with their respective device pinouts and power requirements.

FAQ

Does STEVAL-MKI184V1 include the ISM303DAC sensor IC?

No. The board is an adapter only and does not include the ISM303DAC IC. Users must source and mount the ISM303DAC separately, as the board provides a DIL24 socket footprint and full signal routing for that device. It ships unpopulated.

Can STEVAL-MKI184V1 operate standalone without STEVAL-MKI109V3?

No. It lacks power regulation, USB interface, or MCU - it requires connection to the STEVAL-MKI109V3 motherboard (or equivalent host with DIL24 socket and I²C/SPI bridge) to provide power, communication, and GUI connectivity.

What software tools support STEVAL-MKI184V1?

ST's Unico GUI (v2.0+) is the primary tool, supporting Windows, Linux, and macOS. It enables real-time register read/write, sensor data plotting, calibration setup, and firmware update for ISM303DAC when used with STEVAL-MKI109V3 as the host interface.

Are jumpers or configuration required to select I²C vs. SPI mode?

No. Mode selection is handled entirely by the ISM303DAC's internal configuration registers and external pull-up/pull-down resistors on the host motherboard (STEVAL-MKI109V3). The adapter board routes all necessary control and data lines without hardware mode switches.