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Merge pull request #71 from kattni/circuitpython-quick-start

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adding PWM piezo examples
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Kattni 2018-03-08 20:13:59 -05:00 committed by GitHub
commit f96270e883
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2 changed files with 23 additions and 0 deletions
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14
CircuitPython_Quick_Starts/CircuitPython_PWM_Piezo.py Normal file
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import pulseio
import time
import board
piezo = pulseio.PWMOut(board.A2, duty_cycle=0, frequency=440, variable_frequency=True)
while True:
for f in (262, 294, 330, 349, 392, 440, 494, 523):
piezo.frequency = f
piezo.duty_cycle = 65536 // 2 # On 50%
time.sleep(0.25) # On for 1/4 second
piezo.duty_cycle = 0 # Off
time.sleep(0.05) # Pause between notes
time.sleep(0.5)

9
CircuitPython_Quick_Starts/CircuitPython_PWM_Piezo_simpleio.py Normal file
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import time
import board
import simpleio
while True:
for f in (262, 294, 330, 349, 392, 440, 494, 523):
simpleio.tone(board.A2, f, 0.25) # on for 1/4 second
time.sleep(0.05) # pause between notes
time.sleep(0.5)