Datasheet

BMM150 Geomagnetic Sensor

Page 46

BST-BMM150-DS001-01 | Revision 1.0 | April 2013

Bosch Sensortec

© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to

third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.

Note: Specifications within this document are subject to change without notice.

8.2 Sensing axes orientation

The orientation of the device axes with respect to the applied field is shown in Figure 21. A

remapping of the axes orientation is possible via API.

Figure 21: Orientation of sensing axes

Please note that the planet’s north pole is a magnetic south pole. This means that when the

BMM150’s X axis points towards the north pole, the measured field will be negative.

Table 33: Output signals depending on sensor orientation

9. Sensor Orientation

(magnetic vector )

Output Signal X

0 µT

-|B| µT

0 µT

+|B| µT

0 µT

0 µT

Output Signal Y

-|B| µT

0 µT

+|B| µT

0 µT

0 µT

0 µT

Output Signal Z

0 µT

0 µT

0 µT

0 µT

+|B| µT

-|B| µT

N

S

B

Y

X

z

upright