STMicroelectronics STEVAL-MKI204V1K

Overview

STEVAL-MKI204V1K from STMicroelectronics is a ready-to-use temperature probe evaluation kit built around the STLM75 high-precision digital temperature sensor and thermal watchdog IC, featuring I²C interface, ±0.5 °C accuracy over –25 °C to +100 °C, 9–12-bit programmable resolution, and OS/INT alert outputs - deployed in industrial thermal monitoring and embedded system health diagnostics.

For engineers reviewing the STEVAL-MKI204V1K datasheet, STEVAL-MKI204V1K pinout, STEVAL-MKI204V1K application, or STEVAL-MKI204V1K equivalent, this kit delivers validated signal integrity, plug-and-play compatibility with STEVAL-MKI109V3 motherboards, and direct integration with ST's Unico GUI for real-time temperature profiling and thermal event logging.

Technical Context

The kit implements the STLM75 as a standalone digital temperature sensor with thermal watchdog functionality, using its internal 10-bit ADC and on-chip reference to deliver calibrated 9–12-bit temperature data via standard I²C (SCL/SDA) at up to 400 kHz. The probe's minimal thermal mass and remote mounting capability isolate measurements from PCB self-heating.

Signal conditioning includes dedicated decoupling (1 μF + 100 nF on VDD), configurable interrupt polarity (INT1/INT2), and selectable OS output mode - all routed through the STEVAL-MKIGIBV1 adapter board's DIL24 footprint for standardized motherboard interfacing.

Key Specifications

Availability

STEVAL-MKI204V1K is available at Aetrix Electronics and suitable for industrial thermal monitoring, embedded system health diagnostics, and precision environmental sensing applications requiring stable component supply and rapid prototyping validation.

Supply support for STEVAL-MKI204V1K 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 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 MEMS & sensor evaluation platform family, engineered to accelerate development of thermal, motion, and environmental sensing systems using ST's validated sensor signal chains and GUI-integrated firmware stacks.

FAQ

Does STEVAL-MKI204V1K require external calibration?

No. The STLM75 sensor inside the kit is factory-calibrated across –25 °C to +100 °C with ±0.5 °C accuracy. No user calibration is needed - the probe delivers traceable temperature readings directly via I²C without software compensation or lookup tables.

Which motherboards is STEVAL-MKI204V1K compatible with?

STEVAL-MKI204V1K is fully compatible with STEVAL-MKI109V3 motherboards via the STEVAL-MKIGIBV1 adapter board. It plugs into any standard DIL24 socket on that motherboard and communicates through the STM32F401VET6 bridge microcontroller using I²C protocol.

Can STEVAL-MKI204V1K operate independently without a motherboard?

No. The kit lacks an onboard MCU or USB interface. It requires connection to a compatible motherboard (e.g., STEVAL-MKI109V3) to provide power, I²C host control, and PC communication - the probe itself contains only the STLM75 sensor, passive filtering, and routing circuitry.

What software tools support STEVAL-MKI204V1K?

The kit is supported by ST's free Unico GUI, which enables real-time temperature plotting, threshold configuration, OS/INT event logging, and register-level access to the STLM75. Custom firmware integration is also possible using ST's X-CUBE-MEMS1 software expansion package.