STMicroelectronics STEVAL-MKI005V1

Overview

STEVAL-MKI005V1 from STMicroelectronics is an evaluation board for the LIS3LV02DL 3-axis ±2g/±6g digital-output MEMS accelerometer, featuring an integrated ST7-USB microcontroller, USB interface, GUI software, LED indicators, and SPI-based sensor communication. It enables rapid functional validation of low-voltage motion sensing in portable electronics and industrial monitoring systems.

For engineers reviewing the STEVAL-MKI005V1 datasheet, STEVAL-MKI005V1 pinout, STEVAL-MKI005V1 application, or STEVAL-MKI005V1 equivalent, this kit provides immediate plug-and-play access to raw acceleration data, real-time visualization via PC GUI, firmware customization support, and hardware-level signal integrity verification for embedded motion-sensing designs.

Technical Context

The board implements a complete sensor-to-PC data path: the LIS3LV02DL delivers 12-bit digital acceleration values over SPI, while the ST7265X_TQFP64 microcontroller handles USB protocol translation, sensor register configuration, and interrupt-driven data acquisition via the DATA_READY signal. All power domains are regulated to 3.3 V for low-noise analog operation.

Hardware design includes dedicated SPI routing (MISO/MOSI/SCK/CS), dual crystal oscillators (12 MHz for MCU, 33 pF load for sensor clock), reset conditioning circuitry, and discrete LED drivers for status indication-enabling deterministic timing control and robust host synchronization without external logic.

Key Specifications

Availability

STEVAL-MKI005V1 is available at Aetrix Electronics and suitable for motion sensing prototyping, industrial condition monitoring, and consumer electronics gesture recognition requiring stable component supply and validated reference hardware.

Supply support for STEVAL-MKI005V1 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 markets.

This evaluation board belongs to ST's STEVAL (ST Evaluation) platform family, engineered to accelerate development of MEMS-based motion sensing applications with pre-validated hardware, driver libraries, and GUI tools.

FAQ

Does STEVAL-MKI005V1 support I²C communication with the LIS3LV02DL?

No. The board routes only the SPI interface (MISO, MOSI, SCK, CS_PAD) between the ST7265X and LIS3LV02DL. The LIS3LV02DL's I²C pins (SDA/SDO/SCL) are not connected on the PCB per the schematic; all sensor register access and data reads occur exclusively via SPI.

What software tools are included with STEVAL-MKI005V1?

The kit ships with a Windows-based GUI executable that displays real-time X/Y/Z acceleration waveforms, allows register read/write, configures full-scale range (±2g/±6g), and sets interrupt thresholds. No separate driver installation is required-USB CDC class enumeration enables plug-and-play operation.

Can the ST7-USB microcontroller be reprogrammed for custom firmware?

Yes. The ST7265X is accessible via the ICP header (J2) using standard ST-Link or compatible debug tools. The board includes reset and ICC programming signals (ICCCLK/ICCDATA), enabling full firmware replacement while retaining USB functionality and sensor interface logic.

Is external power required, or is the board fully USB-powered?

The board operates solely from the 5 V USB bus-no external power supply is needed. Onboard regulators convert USB 5 V to clean 3.3 V for both the LIS3LV02DL and ST7265X, with decoupling capacitors (10 µF, 4.7 µF, 100 nF) placed per IC power pin per the schematic layout.