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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 17:47, 8 March 2011
, 17:47, 8 March 2011→Door bell / Burglar alarm
The following code is now a built in sample <i>sinewave.py</i>.
The following code is now a built in sample <i>sinewave.py</i>.
def myblock(lc, x):
import os
os.system('speaker-test -t sine -l 1 -f %d' % (int(x)))
How it works: the 1000 and 1100 blocks are input x in the Python code. The -f option in speaker-test is the frequency, {0} gets replaced by x which in turn is replaced by 1000 or 1100 so speaker-test is sent either -f 1000 or -f 1100 giving frequencies of 1000 Hz or 1100 Hz.
How it works: the 1000 and 1100 blocks are input x in the Python code. The -f option in speaker-test is the frequency, {0} gets replaced by x which in turn is replaced by 1000 or 1100 so speaker-test is sent either -f 1000 or -f 1100 giving frequencies of 1000 Hz or 1100 Hz.