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Introduction

The Bosch BMI270 ultra-low power Intelligent Inertial Measurement Unit (IMU) is specifically designed for use in a variety of wearable applications, greatly improving accelerometer performance. The BMI270 includes intuitive gesture, scene and activity recognition and integrates a plug-and-play pedometer optimized for wrist-worn devices. The IMU is also ideal for other types of wearables such as ear worn devices, smart clothing, smart shoes, smart glasses, and ankle straps.

As an ultra-low-power IMU, the BMI270 extends system battery life by handling multiple activity tracking, step counting, and gesture recognition functions, independent of the main system processor without having to wake it up. These processor-independent features include tasks such as sending interrupts when a certain number of steps is reached, or activating GPS via geofencing when the user stands up and starts walking. As a result, powerful and accurate gesture and activity recognition functions run in ultra-low power domains with current consumption of only 30μA. This significantly reduces power consumption and users can benefit from extended battery charging intervals.

The BMI270 is designed to provide maximum flexibility to users, so it can be tailored to specific use cases with gesture and situational/activity capabilities.

Application scenario

Fitness trackers/wearables

wristband

Smart watch

Audible equipment

anklet

Neck strap

Smart clothing

Augmented and virtual reality glasses and controllers

Features

Dimensions: 3.0mm x 2.5mm x 0.8mm3

Typical current consumption: 685μA (10μA - Accelerometer only)

Improved pedometer/detector

Self-calibrating gyroscopes with the static CRT (component realignment) function:

Ensure that the sensitivity error after welding is as low as ±0.4%.

Significantly reduce power consumption:

With the smart power management unit, you can operate in normally on mode in the ultra-low power domain of the IMU

Advanced MEMS sensors are integrated

There are two application-specific versions available:

The "Gesture" version supports navigation of the device using wrist gestures, such as flicking in/out, arm up/down pushing, and wrist shaking.

The "Scenarios and Activities" version has advanced features for identifying situational activities and changes in activity, such as standing, walking, or being in a car.

Backwards-compatible (pin-to-pin) BMI160, BMI260, BMI261 and BMI263