Smart sensor: BHI160B
The BHI160B is a small, low-power smart sensor with an integrated 3-axis gyroscope, an integrated 3-axis accelerometer and a microcontroller. Containing pre-installed software and algorithms for activity recognition, it is specifically designed to enable always-on motion sensing.
- Low power smart sensor
- Integrated data sensor fusion
- Highly accurate
Not recommended for new design
Technical data
Package dimension
3.0 × 3.0 × 0.95 mm³
Temperature ranges
-40 °C ...+85 °C
Supply voltage (VDDI0)
1.6 V … 3.3 V
Supply voltage (VDD)
1.71 V ... 3.6 V
Microcontroller Bosch Sensortec "fuser core"
32-bit floating-point ARC EM4 MCU running at 10 MHz
1.6 DMIPS/MHz performance, 3.41 CoreMarks/MHz
96 kByte ROM, 48 kByte shared RAM for FIFO, features & extension
optimized for ultra-low power sensor data fusion
1.6 DMIPS/MHz performance, 3.41 CoreMarks/MHz
96 kByte ROM, 48 kByte shared RAM for FIFO, features & extension
optimized for ultra-low power sensor data fusion
Typ. current consumption
- Full 9DoF Fusion @100 Hz ODR¹
- Hub+IMU @100 Hz ODR
- Hub+Gyro @100 Hz ODR
- Hub+Acc @100 Hz ODR
- Activity recognition
- Significant motion
- Step detector
- Suspend mode
- Full 9DoF Fusion @100 Hz ODR¹
- Hub+IMU @100 Hz ODR
- Hub+Gyro @100 Hz ODR
- Hub+Acc @100 Hz ODR
- Activity recognition
- Significant motion
- Step detector
- Suspend mode
1,6 mA
1,2 mA
1 mA
310 μA
150 μA
128 μA
131 μA
11 μA
Sensor fusion performance
- Static accuracy
- Dynamic accuracy
- Calibration time¹
- Orientation stabilization time
- Step counting error
- Activity recognition accuracy
- Static accuracy
- Dynamic accuracy
- Calibration time¹
- Orientation stabilization time
- Step counting error
- Activity recognition accuracy
[Head., Pitch, Roll] = 2, 2, 2, degrees
[Head., Pitch, Roll] = 7, 2, 2, degrees
<1 second
0.2 seconds
<5%³
Precision: 85...97%⁴ Recall: 83...95%⁴
[Head., Pitch, Roll] = 7, 2, 2, degrees
<1 second
0.2 seconds
<5%³
Precision: 85...97%⁴ Recall: 83...95%⁴
Implemented Sensor Types² with integrated IMU only
Accelerometer, gravity, linear acceleration,gyroscope, gyroscope uncalibrated, game rotation vector, step counter, step detector, significant motion, tilt detector, pickup gesture, wake up gesture, glance gesture,activity recognition of standing, running, biking, in vehicle
Implemented Sensor Types² with attached magnetometer
Geomagnetic field, magnetic field uncalibrated, orientation vector, rotation vector, geomagnetic rotation vector
Full Android sensor stack is supported by connecting additional sensors to the BHI160
³ False positives <9 counts within 5 min while driving
⁴ Dependent on activity
