BMC150 eCompass (6-axis digital compass)


General description

Housed in an LGA package with a footprint of 2.2 x 2.2 mm2 and 0.95 mm height, BMC150 is an extremely small low power and low noise 6-axis digital compass. It measures the earth’s geomagnetic field as well as dynamic and static acceleration in all three dimensions and outputs tilt-compensated heading or orientation information. The integrated accelerometer provides all functionalities of Bosch Sensortec’s leading-edge 12bit digital accelerometer, including a 32 frame FIFO buffer storing acceleration data.

Due to its small package size and its advanced power management, BMC150 is ideally suited for virtual reality and navigation applications or motion tracking in handhelds like mobile phones, tablet PCs, notebooks, portable media players, man-machine interfaces and game controllers. With an increased magnetic measurement range, BMC150 offers high PCB placement flexibility to the developer of handheld devices.


  • Augmented reality applications and location based services
  • Indoor and outdoor navigation, e.g. map rotation or step counting (pedometry)
  • Motion tracking
  • Gesture recognition e.g. tap and double tap sensing, Display profile switching
  • Gaming
  • Air mouse applications, pointing devices

Technical data

Parameters Technical data
Digital interfaces I²C, SPI (3/4wire) 4 interrupt pins
Current consumption (regular mode) 540 μA @10 Hz
Current consumption (low power mode) 190 μA @10 Hz
Supply voltage 1.62 V … 3.6 V
Supply voltage I/O 1.20 V … 3.6 V
Operating temperature -40 °C … +85° C
Package (LGA type) 2.2 x 2.2 x 0.95 mm³
Geomagnetic sensor
Measurement range ± 1300 μT (x-,y-axis) ± 2500 μT (z-axis)
Resolution 0.3 μT
Acceleration sensor
Stand-alone operation supported
Resolution 12 bit
Programmable g-range ±2g / ±4g / ±8g / ±16g
Zero-g offset ±80 mg
Sensitivity tolerance ±4 %
Interrupt engine
Accelerometer interrupts Orientation/ flat detection, any motion, tap/ double tap, sensing, low-/ high-g threshold, slow motion / no motion detection, data ready
Magnetometer interrupts magnetic data ready, magnetic threshold detection
FIFO data buffer accelerometer 32 sample depth for each axis

Pin configuration








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