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STMicroelectronics STEVAL-MKI187V1

Name: STEVAL-MKI187V1
Brand: STMicroelectronics
SKU: STEVAL-MKI187V1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STEVAL-MKI187V1

Manufacturer:: STMicroelectronics

Category:: Expansion Boards, Daughter Cards

Package:

Datasheet:: STEVAL-MKI187V1.pdf

Description:: ARGONKEY MEZZANINE SENSOR BOARD

Quantity:: RFQ Add To RFQ list

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Inventory:2,913

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Product details

Overview

STEVAL-MKI187V1 from STMicroelectronics is a 96Boards-compliant ArgonKey mezzanine sensor hub board based on the STM32F412CG microcontroller, integrating LSM6DSL (6-axis inertial), LIS2MDL (3-axis magnetometer), LPS22HB (pressure), HTS221 (humidity/temperature), MP34DT05-A (digital microphone), VL53L0X (ToF gesture detector), and ISL29034 (ambient light sensor). It supports I²C, SPI, I²S, UART, and SWD interfaces for IoT edge sensing applications.

For engineers reviewing the STEVAL-MKI187V1 datasheet, STEVAL-MKI187V1 pinout, STEVAL-MKI187V1 application, or STEVAL-MKI187V1 equivalent, this board serves as a validated reference platform for rapid prototyping of multi-sensor fusion systems in smart home, wearable, and industrial monitoring designs - with full schematic documentation, onboard debug headers, and dual power rails (1.8 V / 3.3 V).

Technical Context

The board implements a centralized sensor aggregation architecture using the STM32F412CG's dual I²C (I2C1/I2C2/I2C3), dual SPI (SPI1/SPI2), and I²S peripherals to concurrently interface with six heterogeneous MEMS sensors and a ToF detector. All sensors operate at standardized I²C addresses (e.g., 0x5D for LSM6DSL, 0x1E for LIS2MDL, 0x5F for LPS22HB) and share interrupt lines routed to GPIOs for synchronized data acquisition.

Power management includes two LDS3985 LDOs delivering regulated +1.8 V (for sensors and MCU I/O) and +3.3 V (for analog peripherals and LEDs), with dedicated decoupling networks per IC. The board features bootloaders accessible via BOOT0/NRST and supports firmware updates over UART1 or SWD using the onboard 16 MHz crystal and 32.768 kHz RTC oscillator.

Key Specifications

Parameter	Value and Actual Design Meaning
Core MCU	STM32F412CG: ARM Cortex-M4 @ 100 MHz, 1024 KB Flash, 256 KB RAM, integrated FPU and DSP instructions.
Sensor Suite	LSM6DSL (6DoF IMU), LIS2MDL (±50 G 3-axis mag), LPS22HB (260–1260 hPa pressure), HTS221 (0–100% RH / -40–+120°C), MP34DT05-A (64 dB SNR digital mic), VL53L0X (25 mm–2 m ToF range).
Interface Support	I²C (3 channels, up to 400 kHz), SPI (2 channels, up to 37.5 MHz), UART (2 ports), I²S (1 channel), SWD (debug), GPIO (32+ configurable pins).
Power Rails	+1.8 V (150 mA max, for sensors & MCU I/O), +3.3 V (250 mA max, for analog/peripherals); input via 5 V USB or 96Board expansion connector.
Mechanical Format	96Boards Mezzanine (ArgonKey form factor), 52.5 × 30 mm, 2×20-pin low-speed expansion header (P3), 10-pin JTAG/SWD (P4), 6-pin UART (P5).
Onboard Peripherals	12 user LEDs (RGB + monochrome), 2 tactile buttons (Reset + User), LP3943 LED driver, M24C02-F EEPROM (2 KB I²C), AMR hall-effect sensor (U7), ambient light sensor (ISL29034).

Availability

STEVAL-MKI187V1 is available at Aetrix Electronics and suitable for IoT edge node development, multi-sensor fusion validation, and 96Boards-based embedded prototyping requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for STEVAL-MKI187V1 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, MEMS sensors, power ICs, and automotive-grade components for industrial, consumer, and automotive markets.

This board belongs to ST's STEVAL (ST Evaluation) product line, engineered to accelerate hardware-software co-development for sensor-rich embedded systems by providing fully documented, production-ready reference platforms with open schematics and firmware examples.

FAQ

Is STEVAL-MKI187V1 compatible with HiKey 96Boards baseboards?

Yes - STEVAL-MKI187V1 is designed to the Linaro 96Boards specification and mechanically/electrically interoperates with the LeMaker HiKey board via its 96Board LS Expansion Connector (P3). Power, I²C, SPI, UART, and GPIO signals are mapped per 96Boards v1.3 requirements, enabling plug-and-play integration without adapter hardware.

What software support is provided for sensor fusion on this board?

ST provides the X-CUBE-MEMS1 software package, including HAL drivers, sensor APIs, and example projects for real-time 6DoF fusion (LSM6DSL + LIS2MDL), pressure/temperature compensation (LPS22HB + HTS221), and gesture-triggered wake-up (VL53L0X). Firmware is delivered as Keil MDK, IAR EWARM, and STM32CubeIDE-compatible projects.

Can the onboard microphone be used for voice activity detection?

Yes - the MP34DT05-A omnidirectional digital microphone delivers 64 dB SNR and -26 dBFS sensitivity, sampled via the STM32F412CG's I²S peripheral at up to 48 kHz. ST's X-CUBE-AUDIO1 middleware includes pre-validated VAD algorithms optimized for this signal chain, supporting low-power wake-on-voice use cases.

Does the board support over-the-air (OTA) firmware updates?

Yes - the STM32F412CG's dual-bank flash architecture and built-in bootloader enable secure OTA updates. ST's STM32CubeProgrammer and X-CUBE-SBSFU (Secure Boot & Secure Firmware Update) package provide signed image generation, encrypted transmission, and authenticated flashing via UART1 or custom BLE/Wi-Fi gateway firmware running on the host baseboard.

STEVAL-MKI187V1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Active

Platform:: 96Boards

Type:: Sensor

Function:: Accelerometer, Gyroscope, Humidity, Magnetometer, Pressure, Temperature

Utilized IC / Part:: HTS221, LIS2MDL, LPS22HB, LSM6DSL, MP34DT05-A, STM32F412CG, VL53L0X

Contents:: Board(s)

STEVAL-MKI187V1 FAQ

1.How can I place an order for STEVAL-MKI187V1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STEVAL-MKI187V1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STEVAL-MKI187V1 reliable?

The price and inventory of STEVAL-MKI187V1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-MKI187V1 is usually 5 days.

3.What payment methods are accepted for STEVAL-MKI187V1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-MKI187V1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STEVAL-MKI187V1?

STEVAL-MKI187V1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STEVAL-MKI187V1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STEVAL-MKI187V1?

For technical support, including STEVAL-MKI187V1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-MKI187V1 requirements.

6.How does Aetrix verify that STEVAL-MKI187V1 is sourced from the original manufacturer or authorized distributors?

All STEVAL-MKI187V1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STEVAL-MKI187V1 meets industry standards.

7.What is the process for return or replacement of STEVAL-MKI187V1?

All STEVAL-MKI187V1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-MKI187V1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STEVAL-MKI187V1 part is unused and in its original packaging.

Return procedure for STEVAL-MKI187V1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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