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38 lines
884 B
Python
38 lines
884 B
Python
import time
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import sys
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import RPi.GPIO as GPIO
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PATH_OPEN = 0
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PATH_BLOCKED = 1
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LIMIT_LOWER_RIGHT = 19
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LIMIT_LOWER_LEFT = 20
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LIMIT_UPPER_RIGHT = 21
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(LIMIT_LOWER_RIGHT, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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GPIO.setup(LIMIT_LOWER_LEFT, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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GPIO.setup(LIMIT_UPPER_RIGHT, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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# True = optical path blocked, False = open
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def test():
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while True:
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try:
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print(
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'Lower Right (GPIO19):', GPIO.input(LIMIT_LOWER_RIGHT) == PATH_BLOCKED,
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'| Lower Left (GPIO20):', GPIO.input(LIMIT_LOWER_LEFT) == PATH_BLOCKED,
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'| Upper Right (GPIO21):', GPIO.input(LIMIT_UPPER_RIGHT) == PATH_BLOCKED,
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)
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time.sleep(1)
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except KeyboardInterrupt as e:
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sys.exit()
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if __name__ == '__main__':
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test()
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