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16 lines
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import time
from machine import PWM, Pin
def pulse():
for i in range(0, 101):
p = PWM(0, Pin("P17", mode=Pin.OUT), freq=PWM.FREQ_16MHZ, duty=i, period=16000)
p.init()
time.sleep_ms(10)
p.deinit()
for i in range(0, 101):
p = PWM(0, Pin("P17", mode=Pin.OUT), freq=PWM.FREQ_16MHZ, duty=100 - i, period=16000)
p.init()
time.sleep_ms(10)
p.deinit()