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micropython/examples/accellog.py
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# log the accelerometer values to a .csv-file on the SD-card | |
import pyb | |
accel = pyb.Accel() # create object of accelerometer | |
blue = pyb.LED(4) # create object of blue LED | |
# open file to write data - /sd/ is the SD-card, /flash/ the internal memory | |
log = open("/sd/log.csv", "w") | |
blue.on() # turn on blue LED | |
# 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.) | |
for i in range(100): | |
t = pyb.millis() # get time since reset | |
x, y, z = accel.filtered_xyz() # get acceleration data | |
log.write("{},{},{},{}\n".format(t, x, y, z)) # write data to file | |
log.close() # close file | |
blue.off() # turn off LED |