STMicroelectronics STEVAL-MKI177V1

Overview

STEVAL-MKI177V1 from STMicroelectronics is an adapter board for the LPS35HW MEMS pressure sensor, enabling plug-in evaluation via standard DIL24 socket interface, with full pinout access, integrated 100 nF + 10 µF VDD decoupling, and RoHS compliance.

For engineers reviewing the STEVAL-MKI177V1 datasheet, STEVAL-MKI177V1 pinout, STEVAL-MKI177V1 application, or STEVAL-MKI177V1 equivalent, this board supports rapid prototyping of barometric pressure sensing in embedded systems using STEVAL-MKI109V2/V3 motherboards and Unico GUI software.

Technical Context

The STEVAL-MKI177V1 implements a passive breakout interface between the LPS35HW's 10-pin DFN package and a 24-pin DIL socket, preserving all signal paths including I²C (SCL/SDA), SPI (SCL/SDO/Cs), interrupt (INT1), and dual power domains (VDD, Vdd_IO). No active logic or level-shifting circuitry is present.

It is mechanically and electrically designed to mate exclusively with ST's STEVAL-MKI109V2 and STEVAL-MKI109V3 evaluation motherboards, leveraging their onboard STM32 microcontroller bridge and USB-to-serial interface for sensor register access and real-time data streaming.

Key Specifications

Availability

STEVAL-MKI177V1 is available at Aetrix Electronics and suitable for MEMS sensor evaluation, industrial environmental monitoring, and consumer-grade altitude tracking applications requiring stable component supply and rapid hardware validation.

Supply support for STEVAL-MKI177V1 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 components for industrial, automotive, and consumer markets.

This adapter belongs to ST's STEVAL (ST Evaluation) product line, engineered specifically to accelerate development and validation of ST MEMS motion and environmental sensors in real-world system environments.

FAQ

Does the STEVAL-MKI177V1 include the LPS35HW sensor?

No. The STEVAL-MKI177V1 is a passive adapter board only - it provides the socket and routing for the LPS35HW but does not include the sensor IC itself. Users must source and mount the LPS35HW separately or obtain it pre-mounted through special ordering channels.

Which host interfaces does the board support?

The board supports both I²C and SPI communication modes via exposed pins: SCL/SDA for I²C, and SCL/SDO/Cs for SPI. Signal routing matches the LPS35HW's native pin functions without translation or buffering, requiring correct protocol selection in host firmware.

Can the STEVAL-MKI177V1 be used without a STEVAL-MKI109V2/V3 motherboard?

Yes, but with hardware modification. The board has no onboard voltage regulation or USB interface; standalone use requires external 1.7–3.6 V power applied to VDD/Vdd_IO, plus discrete I²C/SPI signal connections and interrupt handling - no default PC connectivity.

What software tools are compatible with this adapter?

ST's Unico GUI is fully supported when used with STEVAL-MKI109V2/V3 motherboards. Custom firmware can also access the LPS35HW via ST's X-CUBE-MEMS1 software expansion package, which provides HAL drivers and example projects for STM32-based hosts.