STMicroelectronics STEVAL-MKI108V1

Overview

STEVAL-MKI108V1 from STMicroelectronics is an evaluation adapter board for the L3G4200D 3-axis gyroscope and LSM303DLHC 6-axis e-compass (3-axis accelerometer + 3-axis magnetometer), forming a complete 9-axis motion sensing module. It provides full pin access via a standard DIL24 socket, includes on-board decoupling capacitors, and supports rapid prototyping in embedded motion-tracking applications such as handheld device orientation and inertial navigation.

For engineers reviewing the STEVAL-MKI108V1 datasheet, STEVAL-MKI108V1 pinout, STEVAL-MKI108V1 application, or STEVAL-MKI108V1 equivalent, this board enables direct integration with existing DIL24-compatible host systems, simplifies sensor substitution across ST's MEMS evaluation ecosystem, and delivers ready-to-use power conditioning for dual-sensor operation without external BOM additions.

Technical Context

The STEVAL-MKI108V1 implements a passive breakout interface-no active logic, level-shifting, or signal conditioning-preserving native electrical behavior of both the L3G4200D (I²C/SPI gyro, ±2000 dps range) and LSM303DLHC (I²C accelerometer/magnetometer, ±2/±4/±8 g & ±1.3/±1.9 G ranges). All supply pins (VDD, VDD_IO, VDDA) are routed with dedicated 100 nF ceramic decoupling.

Its DIL24 footprint matches ST's standardized adapter form factor, ensuring mechanical and electrical interoperability with other STEVAL-MKxx series boards (e.g., STEVAL-MKI109V2, STEVAL-MKI113V1), allowing seamless sensor swapping during algorithm development and firmware validation.

Key Specifications

Availability

STEVAL-MKI108V1 is available at Aetrix Electronics and suitable for motion sensor evaluation, embedded IMU prototyping, and industrial tilt/orientation testing requiring stable component supply and legacy ST MEMS compatibility.

Supply support for STEVAL-MKI108V1 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 devices for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL (ST Evaluation) platform family, engineered specifically to accelerate sensor evaluation and firmware development by providing standardized, drop-in-ready hardware interfaces for its MEMS portfolio.

FAQ

Is STEVAL-MKI108V1 still in production?

No. STEVAL-MKI108V1 is marked obsolete by STMicroelectronics as of its original 2011 release. It remains available through authorized distributors and Aetrix Electronics' legacy inventory for design continuity and maintenance of existing systems relying on L3G4200D/LSM303DLHC-based motion sensing.

Does STEVAL-MKI108V1 include firmware or drivers?

No. This is a passive hardware adapter only - no onboard MCU, flash memory, or preloaded firmware. Users must provide their own host processor (e.g., STM32 Nucleo) and implement I²C drivers using ST's official motion sensor libraries (e.g., X-CUBE-MEMS1) or custom code.

Can STEVAL-MKI108V1 be used with Arduino or Raspberry Pi?

Yes, when interfaced via a compatible DIL24 carrier or breadboard adapter that breaks out I²C (SDA/SCL), power (3.3 V), and ground. Direct connection requires matching voltage levels and pull-up resistors; no logic-level translation circuitry is included on the board itself.

What is the purpose of the DIL24 socket footprint?

The DIL24 socket allows mechanical and electrical interchangeability with other ST evaluation adapters (e.g., STEVAL-MKI109V2, STEVAL-MKI113V1), enabling users to test multiple MEMS sensors on the same host board without PCB redesign or soldering changes.