Mouser Electronics stocks the BMI270 smart inertial measurement unit from Bosch. This ultra-low-power unit offers strongly improved accelerometer offset and sensitivity performance based on Bosch’s MEMS process technology. Designed specifically for wearables and augmented reality/virtual reality applications, it includes intuitive gesture, context and activity recognition with an integrated plug-and-play step counter.

It incorporates a 16-bit triaxial gyroscope and 16-bit triaxial accelerometer in two application-specific versions. The “gesture” version, designed for Wear OS by Google, allows users to navigate the device by using wrist gestures such as flick in/out, arm up/down and wrist tilt. The “context and activity” version has advanced features for recognising context activity and activity change such as standing, walking and being in a vehicle. It features the industry’s first self-calibrating gyroscope using Bosch’s unique and motionless component retrimming feature, which compensates for MEMS soldering drifts and saves OEMs time and costs during testing and manufacturing.

The device extends system battery life by handling multiple activity tracking, step counting and gesture recognition functions independently of the main system processor, without having to wake it up. These processor-independent functions include tasks such as sending an interrupt when a certain number of steps is reached, or geofencing to activate GPS when the user stands and begins walking. Through its intelligent power management system, powerful and accurate gesture and activity recognition features run in the ultra-low-power domain, with a current consumption of just 30μA.

The 2.5 x 3 x 0.8mm BMI270 is pin-to-pin compatible with Bosch’s BMI160, BMI260, BMI261 and BMI263 inertial measurement units, simplifying drop-in replacement in existing designs.

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