STMicroelectronics STEVAL-MKI136V1

Overview

STEVAL-MKI136V1 from STMicroelectronics is an adapter board for the L3GD20H 3-axis digital gyroscope, enabling plug-in evaluation via standard DIL-24 socket. It provides full pinout access, on-board decoupling (10 nF, 100 nF, 10 µF), RoHS compliance, and direct compatibility with STEVAL-MKI109V2 motherboard for PC-based sensor evaluation using Unico GUI.

For engineers reviewing the STEVAL-MKI136V1 datasheet, STEVAL-MKI136V1 pinout, STEVAL-MKI136V1 application, or STEVAL-MKI136V1 equivalent, this adapter enables rapid MEMS gyroscope prototyping in custom host systems without custom PCB design-critical for motion sensing validation, firmware integration, and interface timing verification.

Technical Context

The board implements a passive breakout interface between the L3GD20H MEMS gyroscope IC and a DIL-24 socket, preserving all signal and power terminals including dual interrupt outputs (INT1, DRDY/INT2), SPI/I²C configurable pins (SCL/SPC, SDA/SDI/SDO), chip select (CS), and digital I/O supply (Vdd_IO). No active logic or level-shifting circuitry is integrated.

It is designed exclusively as a mechanical and electrical adapter-not a standalone sensor module-and requires pairing with STEVAL-MKI109V2 (or equivalent host MCU platform) to enable data acquisition, register configuration, and real-time visualization via ST's Unico GUI software.

Key Specifications

Availability

STEVAL-MKI136V1 is available at Aetrix Electronics and suitable for motion sensor evaluation, embedded inertial measurement unit (IMU) development, and industrial tilt/orientation prototyping requiring stable component supply and documented ST reference design integration.

Supply support for STEVAL-MKI136V1 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 (ST Evaluation) series-reference hardware platforms built to accelerate validation of ST MEMS sensors and simplify integration into customer systems using standardized interfaces and documented firmware stacks.

FAQ

Does STEVAL-MKI136V1 include the L3GD20H sensor IC?

No. The board is a passive adapter only-it does not include the L3GD20H IC. Users must supply the L3GD20H in a compatible DIL-24 socket or mount it separately. The board provides correct footprint, pin mapping, and decoupling for that device.

Can STEVAL-MKI136V1 operate independently without STEVAL-MKI109V2?

No. It lacks power regulation, MCU, USB interface, or firmware. It requires connection to a host platform like STEVAL-MKI109V2 (or custom STM32-based system) to configure registers, read gyro data, and stream output to a PC.

What communication protocols does this adapter support?

The adapter exposes all L3GD20H interface pins, supporting both SPI (4-wire, with CS, SCL/SPC, SDA/SDI/SDO) and I²C (with SCL/SPC and SDA/SDI/SDO shared pins) as defined in the L3GD20H datasheet-no protocol translation or arbitration logic is implemented on-board.

Is STEVAL-MKI136V1 suitable for production use?

No. It is a development-only evaluation tool. ST does not qualify or warrant it for end-product deployment. For production, users must design a custom PCB integrating the L3GD20H with appropriate layout, filtering, and mechanical mounting per application requirements.