STMicroelectronics X-NUCLEO-IKS02A1

Overview

X-NUCLEO-IKS02A1 from STMicroelectronics is an industrial motion and audio MEMS sensor expansion board for STM32 Nucleo platforms, featuring ISM330DHCX (±2/±4/±8/±16 g accel + ±125–±2000 dps gyro), IIS2MDC (±50 gauss magnetometer), IIS2DLPC (ultra-low-power ±2/±4/±8/±16 g accel), and IMP34DT05 (−26 dBFS digital microphone). It supports I²C sensor hub operation and Arduino UNO R3 connectivity.

For engineers reviewing the X-NUCLEO-IKS02A1 datasheet, X-NUCLEO-IKS02A1 pinout, X-NUCLEO-IKS02A1 application, or X-NUCLEO-IKS02A1 equivalent, this board enables rapid prototyping of multi-sensor industrial motion tracking, orientation sensing, acoustic event detection, and sensor fusion firmware development with STM32Cube-compatible libraries.

Technical Context

The board implements a hierarchical I²C topology where ISM330DHCX acts as sensor hub master, managing IIS2MDC, IIS2DLPC, and optional DIL24 adapters on shared or configurable I²C buses (I2C1/I2C2). Default address mapping includes ISM330DHCX at 0xD4h/0xD6h, IIS2MDC at 0x30h/0x32h, and IIS2DLPC at 0x3Ch/0x3Eh.

It provides dual interrupt routing (INT1/INT2) per sensor, configurable DRDY-triggered data acquisition, and flexible voltage translation (1.8 V / 3.3 V I/O domains) via dedicated level-shifters and jumpers (JP7, JP8, JP9). The IMP34DT05 interfaces via dedicated PDM clock/data lines routed to STM32's DFSDM or I²S peripherals.

Key Specifications

Availability

X-NUCLEO-IKS02A1 is available at Aetrix Electronics and suitable for industrial condition monitoring, predictive maintenance systems, and portable diagnostic equipment requiring stable component supply and validated sensor integration.

Supply support for X-NUCLEO-IKS02A1 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 devices for industrial, automotive, and consumer applications.

The X-NUCLEO series targets rapid STM32-based prototyping, with the IKS02A1 specifically engineered to accelerate development of sensor-fused industrial motion and acoustic analysis solutions using ST's iNEMO inertial modules.

FAQ

Does X-NUCLEO-IKS02A1 require external power beyond the STM32 Nucleo board?

No. The board draws regulated 3.3 V and 1.8 V from the host Nucleo board via Arduino and Morpho connectors. All onboard voltage translation and level-shifting circuits are self-contained; no external power supply or regulators are needed for standard operation.

Can the ISM330DHCX operate independently as a standalone inertial measurement unit?

Yes. When used without other sensors, ISM330DHCX functions as a fully autonomous 6-axis IMU with embedded FIFO, programmable interrupts, and hardware sensor fusion (e.g., step counter, tilt detection). Its sensor hub mode is optional and only active when additional I²C slaves are connected and enabled.

What firmware resources are provided for sensor calibration and synchronization?

ST provides the X-CUBE-IKS02A1 firmware package with STM32CubeMX-compatible drivers, sensor fusion algorithms (e.g., Madgwick filter), time-aligned multi-sensor data streaming examples, and factory-calibrated offset/temperature compensation parameters for all four integrated sensors.

Is the DIL24 socket electrically compatible with third-party MEMS adapter boards?

Yes. The DIL24 socket exposes standard I²C, SPI, and GPIO signals mapped to the ISM330DHCX's auxiliary interface. Adapter boards must conform to 2.54 mm pitch, 24-pin layout, and match the board's 1.8 V logic levels; ST's AN5053 application note defines signal routing and timing constraints.