Dual-range motion sensor simplifies IIoT system designs
STMicroelectronics debuts the tiny ISM6HG256X three-in-one motion sensor in a 2.5 × 3-mm package for data-hungry industrial IoT (IIoT) systems, while also supporting edge AI applications. The IMU sensor combines simultaneous low-g (±16 g) and high-g (±256 g) acceleration detection with a high-performance precision gyroscope for angular rate measurement, ensuring the detection from subtle motion or vibrations to severe shocks.
“By integrating an accelerometer with dual full-scale ranges, it eliminates the need for multiple sensors, simplifying system design and reducing overall complexity,” ST said.
The ISM6HG256X is suited for IIoT applications such as asset tracking, worker safety wearables, condition monitoring, robotics, factory automation, and black box event recording.
In addition, the embedded edge processing and self-configurability support real-time event detection and context-adaptive sensing, which are needed for asset tracking sensor nodes, wearable safety devices, continuous industrial equipment monitoring, and automated factory systems.
Key features of the MEMS motion sensor are the unique machine-learning core and finite state machine, together with adaptive self-configuration and sensor fusion low power (SFLP). In addition, thanks to the SFLP algorithm, 3D orientation tracking also is possible with a few µA of current consumption, according to ST.
These features are designed to bring edge AI directly into the sensor to autonomously classify detected events, which supports real-time, low-latency performance, and ultra-low system power consumption.
The ISM6HG256X is available now in a surface-mount package that can withstand harsh industrial environments from -40°C to 105°C. Pricing starts at $4.27 for orders of 1,000 pieces from the eSTore and through distributors. It is part of ST’s longevity program, ensuring long-term availability of critical components for at least 10 years.
Also available to help with development are the new X-NUCLEO-IKS5A1 industrial expansion board with MEMS Studio design environment and software libraries, X-CUBE-MEMS1. These tools help implement functions such as high-g and low-g fusion, sensor fusion, context awareness, asset tracking, and calibration.
The ISM6HG256X will be showcased in a dedicated STM32 Summit Tech Dive, “From data to insight: build intelligent, low-power IoT solutions with ST smart sensors and STM32,” on November 20.
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