accellog.py 996 B

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  1. # log the accelerometer values to a .csv-file on the SD-card
  2. import pyb
  3. accel = pyb.Accel() # create object of accelerometer
  4. blue = pyb.LED(4) # create object of blue LED
  5. log = open('/sd/log.csv', 'w') # open file to write data - /sd/ is the SD-card, /flash/ the internal memory
  6. blue.on() # turn on blue LED
  7. for i in range(100): # do 100 times (if the board is connected via USB, you can't write longer because the PC tries to open the filesystem which messes up your file.)
  8. t = pyb.millis() # get time since reset
  9. x, y, z = accel.filtered_xyz() # get acceleration data
  10. log.write('{},{},{},{}\n'.format(t,x,y,z)) # write data to file
  11. log.close() # close file
  12. blue.off() # turn off LED