# Connect to Circuit Playground board on specified port.
board = CircuitPlayground(port)
# Define a C major scale of frequencies (C4, D4, E4, F4, G4, A4, B4) up & down.
# Tone frequency values from:
# https://www.arduino.cc/en/Tutorial/ToneMelody?from=Tutorial.Tone
scale = [262, 294, 330, 349, 392, 440, 494, 440, 392, 349, 330, 294, 262]
# Set the duration of each note (in milliseconds)
duration = 500
# Loop through the scale and play each note.
print('Playing scale...')
for note in scale:
# Play the note using the tone function.
board.tone(note, duration)
# Wait for the tone to finish playing, and add a small delay between notes
# (100 ms).
time.sleep(
(duration + 100.0) /
1000.0) # time.sleep expects seconds, so divide duration by 1000.
# Demonstrate continuous tone playback and no_tone to stop playback.
print('Playing note, then stopping after 1 second.')
board.tone(scale[0]) # This will start playing the first not forever.
time.sleep(1.0) # Now wait 1 second.
board.no_tone() # Stop tone playback.
# Close Firmata board connection when done.
board.close()
port = sys.argv[1]
# Connect to Circuit Playground board on specified port.
board = CircuitPlayground(port)
# Define a C major scale of frequencies (C4, D4, E4, F4, G4, A4, B4) up & down.
# Tone frequency values from:
# https://www.arduino.cc/en/Tutorial/ToneMelody?from=Tutorial.Tone
scale = [262, 294, 330, 349, 392, 440, 494, 440, 392, 349, 330, 294, 262]
# Set the duration of each note (in milliseconds)
duration = 500
# Loop through the scale and play each note.
print('Playing scale...')
for note in scale:
# Play the note using the tone function.
board.tone(note, duration)
# Wait for the tone to finish playing, and add a small delay between notes
# (100 ms).
time.sleep((duration+100.0)/1000.0) # time.sleep expects seconds, so divide duration by 1000.
# Demonstrate continuous tone playback and no_tone to stop playback.
print('Playing note, then stopping after 1 second.')
board.tone(scale[0]) # This will start playing the first not forever.
time.sleep(1.0) # Now wait 1 second.
board.no_tone() # Stop tone playback.
# Close Firmata board connection when done.
board.close()
