37 lines
787 B
Python
37 lines
787 B
Python
import sys, getopt
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import RPi.GPIO as GPIO
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import time
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import threading
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ledPin = 5
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def setup():
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global pwm
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GPIO.setmode(GPIO.BOARD)
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GPIO.setup(ledPin, GPIO.OUT)
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GPIO.output(ledPin, GPIO.LOW)
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pwm = GPIO.PWM(ledPin, 1000) # Set Frequency to 1 KHz
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pwm.start(0) # Set the starting Duty Cycle
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def loop():
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while True:
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for dc in range(0, 101, 1):
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pwm.ChangeDutyCycle(dc)
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time.sleep(0.01)
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time.sleep(1)
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for dc in range(100, -1, -1):
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pwm.ChangeDutyCycle(dc)
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time.sleep(0.01)
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time.sleep(1)
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def destroy():
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pwm.stop()
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GPIO.output(ledPin, GPIO.LOW)
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GPIO.cleanup()
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if __name__ == '__main__':
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setup()
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try:
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loop()
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except KeyboardInterrupt:
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destroy() |