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Bosch BHI360 Programmable IMU Smart Sensor System

Bosch BHI360 Programmable Inertial Measurement Unit (IMU) Smart Sensor System is a highly integrated, ultra-low-power, customizable sensor consisting of a best-in-class 6-axis IMU, a 32-bit programmable controller (Fuser2 Core), and a second ultra-low-power MCU. The 2.5mm x 3mm LGA-packaged BHI360 features a robust software framework containing pre-installed sensor fusion and other sensor data processing software and is Pin2pin backward compatible with Bosch IMUs. The Fuser2 Core is intended to be a co-processor, offloading the main CPU from sensor data processing tasks and significantly reducing overall system power consumption. These tasks include sensor fusion, position tracking, and activity/gesture detection with high precision and low latency.

Features

  • Hardware
    • ARC EM4 CPU (up to 3.6 CoreMark/MHz)
    • Floating Point Unit (FPU)
    • Memory Protection Unit (MPU)
    • 4-channel micro-DMA controller
    • ARCv2 16/32-bit instruction set
  • Low-power CPU optimized for accelerometer-based always-on algorithms
  • Memory
    • 256kB on-chip SRAM
    • 144kB on-chip ROM preloaded with software
  • Connectivity
    • SPI or I2C configurable host interface
    • 2x secondary master interfaces (1x I2C interface and 1x selectable SPI or I2C)
    • Up to 14x GPIOs
    • Fast I/O operations
      • SPI and GPIOs up to 50MHz
      • I2C up to 3.4MHz
  • Integrated sensor (6-DoF IMU)
    • 16-bit 3-axis accelerometer
    • 16-bit 3-axis gyroscope
  • Software
    • Open sensor platform for the development of custom embedded algorithms for Fuser2 Core (MCU)
    • Integrated event-driven software framework and OpenRTOS™ with virtual sensor stack
    • Integrated BSX sensor fusion software library, including dynamic offset auto-calibration algorithms, 6DoF, and 9DoF 3D device orientation, gravity vector, etc.
    • Support for high-performance mode and several low-power modes
    • Integrated head orientation algorithm featuring sensor fusion and head misalignment correction
    • Optimized algorithms running on an ultra-low-power Bosch Core including step counter, tap detection, gesture detection, and activity recognition
    • Powerful SDK for easy customization with support for:
      • Metaware C Compiler for ARC
      • GNU C Compiler for ARC

Applications

  • Wrist wearables
    • Smartwatches
    • Fitness bands
    • Smart hybrid watches
  • Smartphones and other mobile communication devices
  • Head-mounted devices
    • Headsets
    • Truly wireless in-ear devices
    • Smart sunglasses
  • AR/VR/MR headset and controller devices

Specifications

  • Current consumption
    • Fuser2 (running CoreMark)
      • 950µA long run mode at 20MHz
      • 2.8mA turbo mode at 50MHz
    • Sensor Fusion (Hub + IMU) operation (calculating Game Rotation Vector)
      • 1.2mA, 800Hz ODR
      • 1.0mA, 100Hz ODR
    • 8µA standby current
  • 1.8V operating voltage
  • Sensor Fusino performance
    • 2, 2, 2 degrees static accuracy (heading, pitch, roll)
    • 7, 2, 2 degrees dynamic accuracy (heading, pitch, roll)
    • <1s calibration time
    • 0.2s orientation stabilization time

Related Development Tools

BHI360 Multiple Function Shuttle Board 3.0

Bosch BHI360 Multiple Function Shuttle Board 3.0

For the evaluation of BMM150, BMM350, BME688, BMP580, and BHI360 sensors.

Learn Moreabout Bosch BHI360 Multiple Function Shuttle Board 3.0 View Productsrelated to Bosch BHI360 Multiple Function Shuttle Board 3.0
Published: 2023-06-14 | Updated: 2023-07-20