38 lines
790 B
Python
38 lines
790 B
Python
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#!/usr/bin/python
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from time import sleep
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import RPi.GPIO as GPIO
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yellowLed = 15
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redLed = 17
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greenLed = 18
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sleepTime = 0.25
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try:
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(yellowLed, GPIO.OUT)
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GPIO.setup(redLed, GPIO.OUT)
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GPIO.setup(greenLed, GPIO.OUT)
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while True:
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GPIO.output(yellowLed, 1)
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GPIO.output(redLed, 0)
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GPIO.output(greenLed, 0)
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sleep(sleepTime)
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GPIO.output(yellowLed, 0)
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GPIO.output(redLed, 1)
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GPIO.output(greenLed, 0)
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sleep(sleepTime)
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GPIO.output(yellowLed, 0)
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GPIO.output(redLed, 0)
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GPIO.output(greenLed, 1)
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sleep(sleepTime)
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except KeyboardInterrupt:
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GPIO.output(yellowLed, 0)
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GPIO.output(redLed, 0)
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GPIO.output(greenLed, 0)
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finally:
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GPIO.cleanup()
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