Seeed 101020492, Руководство пользователя

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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/ 13/15
Step 3. Excute below commands to run the code.
Following is the grove_3_axis_compass_bmm150.py code.
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2 cd grove.py/grove
python grove_3_axis_compass_bmm150.py
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36 from __future__ import print_function
import time , sys , signal , atexit , math
try :
from upm import pyupm_bmm150 as sensorObj
except ImportError :
print ( 'Error: Please install python-mraa python-upm module. \r\n
'See instruction here https://github.com/Seeed-Studio/pi_
def main ():
# Instantiate a BMP250E instance using default i2c bus and addr
sensor = sensorObj.BMM150( 0 , 0x13 )
# For SPI, bus 0, you would pass -1 as the address, and a valid
# BMM150(0, -1, 10);
## Exit handlers ##
# This function stops python from printing a stacktrace when yo
def SIGINTHandler (signum, frame):
raise SystemExit
# This function lets you run code on exit
def exitHandler ():
print ( "Exiting" )
sys.exit( 0 )
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
# now output data every 250 milliseconds
while ( 1 ):
sensor.update()
data = sensor.getMagnetometer()
print ( "Magnetometer x: {0:.2f}" .format(data[ 0 ]), end= ' ' )
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