circuitpython/ports/stm/boards/swan_r5/tests/pwnio.py

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2021-09-28 10:06:52 -04:00
import time
import pwmio
def fade(pin):
led = pwmio.PWMOut(pin, frequency=5000, duty_cycle=0)
# LED setup for QT Py M0:
# led = pwmio.PWMOut(board.SCK, frequency=5000, duty_cycle=0)
while True:
for i in range(100):
# PWM LED up and down
if i < 50:
led.duty_cycle = int(i * 2 * 65535 / 100) # Up
else:
led.duty_cycle = 65535 - int((i - 50) * 2 * 65535 / 100) # Down
time.sleep(0.01)