30 lines
622 B
Python
30 lines
622 B
Python
global GPIO
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import RPi.GPIO as GPIO
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import time
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GPIO.setmode(GPIO.BOARD)
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GPIO_TRIGGER = 18
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GPIO_ECHO = 24
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GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
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GPIO.setup(GPIO_ECHO, GPIO.IN)
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def get_water_level():
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GPIO.output(GPIO_TRIGGER, True)
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time.sleep(0.00001)
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GPIO.output(GPIO_TRIGGER, False)
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startTime = time.time()
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StopTime = time.time()
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while GPIO.input(GPIO_ECHO) == 0:
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startTime = time.time()
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while GPIO.input(GPIO_ECHO) == 1:
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StopTime = time.time()
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TimeElapsed = StopTime - startTime
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distance = (TimeElapsed * 34300) / 2
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return distance
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print(get_water_level()) |