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How to use rain sensor in raspberry pi

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The rain sensor works, but there is no change in the output, it is constantly showing False all the time. Again, the sensor itself works, the light glows when water is detected on the sensor.

def isitwet():
 from time import sleep
 import os
 import RPi.GPIO as GPIO

 GPIO.setmode(GPIO.BCM)
 GPIO.setup(4, GPIO.IN)
 state = GPIO.input(4)

 if (state == 0):
 return True
 else:
 return False

Expected output is to show True if the sensor detects water on it. Actual output comes as True, no matter if water is there on the sensor or not.

python-3.x raspberry-pi3 gpio

share|improve this question

asked Mar 24 at 18:28

GTSGTS

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Is the sensor has open-drain output? If it is — is external pullup present? (There are no pull_up_down=GPIO.PUD_UP in your code).
  
  – ReAl
  Mar 25 at 8:01
  

  
  
  
  

add a comment | 

0

0

The rain sensor works, but there is no change in the output, it is constantly showing False all the time. Again, the sensor itself works, the light glows when water is detected on the sensor.

def isitwet():
 from time import sleep
 import os
 import RPi.GPIO as GPIO

 GPIO.setmode(GPIO.BCM)
 GPIO.setup(4, GPIO.IN)
 state = GPIO.input(4)

 if (state == 0):
 return True
 else:
 return False

Expected output is to show True if the sensor detects water on it. Actual output comes as True, no matter if water is there on the sensor or not.

python-3.x raspberry-pi3 gpio

share|improve this question

asked Mar 24 at 18:28

GTSGTS

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Is the sensor has open-drain output? If it is — is external pullup present? (There are no pull_up_down=GPIO.PUD_UP in your code).
  
  – ReAl
  Mar 25 at 8:01
  

  
  
  
  

add a comment | 

The rain sensor works, but there is no change in the output, it is constantly showing False all the time. Again, the sensor itself works, the light glows when water is detected on the sensor.

def isitwet():
 from time import sleep
 import os
 import RPi.GPIO as GPIO

 GPIO.setmode(GPIO.BCM)
 GPIO.setup(4, GPIO.IN)
 state = GPIO.input(4)

 if (state == 0):
 return True
 else:
 return False

Expected output is to show True if the sensor detects water on it. Actual output comes as True, no matter if water is there on the sensor or not.

python-3.x raspberry-pi3 gpio

share|improve this question

asked Mar 24 at 18:28

GTSGTS

1

def isitwet():
 from time import sleep
 import os
 import RPi.GPIO as GPIO

 GPIO.setmode(GPIO.BCM)
 GPIO.setup(4, GPIO.IN)
 state = GPIO.input(4)

 if (state == 0):
 return True
 else:
 return False

share|improve this question

asked Mar 24 at 18:28

GTSGTS

1

share|improve this question

asked Mar 24 at 18:28

GTSGTS

1

asked Mar 24 at 18:28

GTSGTS

1

asked Mar 24 at 18:28

GTSGTS

1