Seeed 101020492, Manual

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3/18/2019 Grove - 3-Axis Digitial Compass v2.0 - Seeed Wiki
http://wiki.seeedstudio.com/Grove-3-Axis_Digitial_Compass_v2.0/ 14/15
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58 print ( " y: {0:.2f}" .format(data[ 1 ]), end= ' ' )
print ( " z: {0:.2f}" .format(data[ 2 ]), end= ' ' )
print ( " uT" )
xyHeading = math.atan2(data[
0 ], data[ 1 ])
zxHeading = math.atan2(data[ 2 ], data[ 0 ])
heading = xyHeading
if heading < 0 :
h= 2 *math.pi
if heading > 2 *math.pi:
heading -= 2 *math.pi
headingDegrees = heading *
180 /(math.pi);
xyHeadingDegrees = xyHeading * 180 / (math.pi)
zxHeadingDegrees = zxHeading * 180 / (math.pi)
print ( 'heading(axis_Y point to): {0:.2f} degree' .format(hea
time.sleep(. 250 )
if __name__ == '__main__' :
main()
Success
If everything goes well, you will be able to see the following result
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16 pi @raspberrypi :~/grove.py/grove $ python grove_3_axis_compass_bmm15
Magnetometer x: - 34.12 y: 36.71 z: - 21.25 uT
heading(axis_Y point to): 317.10 degree
Magnetometer x: - 34.49 y: 38.20 z: - 16.32 uT
heading(axis_Y point to): 317.92 degree
Magnetometer x: - 34.12 y: 38.20 z: - 9.87 uT
heading(axis_Y point to): 318.23 degree
Magnetometer x: - 32.64 y: 38.94 z: - 5.69 uT
heading(axis_Y point to): 320.03 degree
Magnetometer x: - 31.52 y: 38.20 z: - 2.28 uT
heading(axis_Y point to): 320.47 degree
Magnetometer x: - 29.67 y: 38.20 z: 0.38 uT
heading(axis_Y point to): 322.16 degree
Magnetometer x: - 26.33 y: 38.20 z: 4.55 uT
heading(axis_Y point to): 325.42 degree
^CExiting
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