STMicroelectronics STEVAL-MKIT03V1

Overview

STEVAL-MKIT03V1 from STMicroelectronics is a MEMS environmental sensor sample kit comprising four I²C-compatible adapter boards: STEVAL-MKI141V2 (HTS221 humidity/temperature), STEVAL-MKI183V1 (LPS33HW barometric pressure), STEVAL-MKI192V1 (LPS22HH nano pressure), and STEVAL-MKI198V1K (STTS751 local temperature). It supports standalone evaluation via I²C cable or advanced analysis using the STEVAL-MKI109V3 STM32F401-based interface board and ST's GUI.

For engineers reviewing the STEVAL-MKIT03V1 datasheet, STEVAL-MKIT03V1 pinout, STEVAL-MKIT03V1 application, or STEVAL-MKIT03V1 equivalent, this kit enables rapid validation of multi-sensor environmental monitoring systems across industrial, IoT, and portable device designs - with DIL24 socket compatibility, I²C interoperability, and GUI-driven data visualization.

Technical Context

The kit integrates four discrete sensor adapter boards, each designed for plug-in evaluation in a standard DIL24 socket and communicating exclusively over I²C. No shared MCU or onboard processing occurs - all boards operate as independent peripheral nodes.

Each adapter board exposes native sensor functionality without signal conditioning or firmware abstraction: HTS221 delivers 16-bit RH and 16-bit temperature output; LPS33HW provides 24-bit absolute pressure (260–1260 hPa); LPS22HH offers 24-bit pressure with ultra-low power mode; STTS751 supplies 12-bit local temperature with ±0.5 °C accuracy.

Key Specifications

Availability

STEVAL-MKIT03V1 is available at Aetrix Electronics and suitable for environmental sensor prototyping, industrial condition monitoring, IoT edge node development, and academic MEMS education requiring stable component supply and consistent evaluation platform access.

Supply support for STEVAL-MKIT03V1 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 kit belongs to ST's STEVAL (ST Evaluation) series - purpose-built to accelerate customer evaluation of ST's MEMS sensor portfolio through standardized, socket-based, GUI-ready hardware interfaces.

FAQ

Does STEVAL-MKIT03V1 include an onboard microcontroller?

No. STEVAL-MKIT03V1 is a passive sensor adapter kit containing four separate DIL24-mountable boards. It has no integrated MCU, memory, or firmware. Full functionality requires either direct I²C host connection or use of the optional STEVAL-MKI109V3 interface board with STM32F401VET6.

Can the sensor boards be used independently outside the kit?

Yes. Each board - STEVAL-MKI141V2, STEVAL-MKI183V1, STEVAL-MKI192V1, and STEVAL-MKI198V1K - is orderable separately and functions autonomously when connected to any I²C-capable host system, including Arduino, Raspberry Pi, or custom PCBs with appropriate level-shifting.

Is GUI software included with STEVAL-MKIT03V1?

Yes. ST provides the free Unicleo-GUI software, compatible with Windows, which communicates with the sensor boards via STEVAL-MKI109V3. The GUI displays real-time humidity, temperature, and pressure data, supports sensor configuration, and exports logged measurements in CSV format.

What voltage levels are supported for I²C communication?

The adapter boards operate at 1.8 V to 3.3 V logic levels. I²C pull-ups must match the host system's V_{DD_IO}; ST recommends 4.7 kΩ pull-ups to V_{DD_IO} on SDA/SCL. No 5 V-tolerant operation is supported - level-shifting is required for 5 V hosts.