how do i write a keypress callback?



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0















I'm trying to write a piece of code for Raspberry Pi in python 3.4.2 that uses callbacks to trigger certain events.



Currently I'm making use of a nifty GPIO command (GPIO.add_event_detect) along with a try/except rule that makes the script pause and wait until something happens.



I want to do something similar at the same time for a keyboard button press (not bothered which one right now), is there a way to do this that's similar to the GPIO.add_event_detect?



an example in code:



import RPi.GPIO as GPIO

receiverPin = 14
quitButton = 17

GPIO.setmode(GPIO.BCM)
GPIO.setup(receiverPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(quitButton, GPIO.IN, pull_up_down=GPIO.PUD_UP)

#FUNCTION ACTIVATED BY DESIRED CODE#
def activate(channel):
#do stuff#

def direct_hit(channel):
#do stuff#

GPIO.add_event_detect(receiverPin, GPIO.BOTH, callback=direct_hit)

#DESIRED CODE BLOCK
keypress.add_event_detect(KEYPRESS_ENTER, callback=activate)

try:
GPIO.wait_for_edge(quitButton, GPIO.FALLING)
print("Exiting")
GPIO.cleanup()
quit()
except KeyboardInterrupt:
GPIO.cleanup()
GPIO.cleanup()


Is there a way to do this? bear in mind I am self taught(poorly).



Thanks in advance for any help.










share|improve this question




























    0















    I'm trying to write a piece of code for Raspberry Pi in python 3.4.2 that uses callbacks to trigger certain events.



    Currently I'm making use of a nifty GPIO command (GPIO.add_event_detect) along with a try/except rule that makes the script pause and wait until something happens.



    I want to do something similar at the same time for a keyboard button press (not bothered which one right now), is there a way to do this that's similar to the GPIO.add_event_detect?



    an example in code:



    import RPi.GPIO as GPIO

    receiverPin = 14
    quitButton = 17

    GPIO.setmode(GPIO.BCM)
    GPIO.setup(receiverPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
    GPIO.setup(quitButton, GPIO.IN, pull_up_down=GPIO.PUD_UP)

    #FUNCTION ACTIVATED BY DESIRED CODE#
    def activate(channel):
    #do stuff#

    def direct_hit(channel):
    #do stuff#

    GPIO.add_event_detect(receiverPin, GPIO.BOTH, callback=direct_hit)

    #DESIRED CODE BLOCK
    keypress.add_event_detect(KEYPRESS_ENTER, callback=activate)

    try:
    GPIO.wait_for_edge(quitButton, GPIO.FALLING)
    print("Exiting")
    GPIO.cleanup()
    quit()
    except KeyboardInterrupt:
    GPIO.cleanup()
    GPIO.cleanup()


    Is there a way to do this? bear in mind I am self taught(poorly).



    Thanks in advance for any help.










    share|improve this question
























      0












      0








      0








      I'm trying to write a piece of code for Raspberry Pi in python 3.4.2 that uses callbacks to trigger certain events.



      Currently I'm making use of a nifty GPIO command (GPIO.add_event_detect) along with a try/except rule that makes the script pause and wait until something happens.



      I want to do something similar at the same time for a keyboard button press (not bothered which one right now), is there a way to do this that's similar to the GPIO.add_event_detect?



      an example in code:



      import RPi.GPIO as GPIO

      receiverPin = 14
      quitButton = 17

      GPIO.setmode(GPIO.BCM)
      GPIO.setup(receiverPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
      GPIO.setup(quitButton, GPIO.IN, pull_up_down=GPIO.PUD_UP)

      #FUNCTION ACTIVATED BY DESIRED CODE#
      def activate(channel):
      #do stuff#

      def direct_hit(channel):
      #do stuff#

      GPIO.add_event_detect(receiverPin, GPIO.BOTH, callback=direct_hit)

      #DESIRED CODE BLOCK
      keypress.add_event_detect(KEYPRESS_ENTER, callback=activate)

      try:
      GPIO.wait_for_edge(quitButton, GPIO.FALLING)
      print("Exiting")
      GPIO.cleanup()
      quit()
      except KeyboardInterrupt:
      GPIO.cleanup()
      GPIO.cleanup()


      Is there a way to do this? bear in mind I am self taught(poorly).



      Thanks in advance for any help.










      share|improve this question














      I'm trying to write a piece of code for Raspberry Pi in python 3.4.2 that uses callbacks to trigger certain events.



      Currently I'm making use of a nifty GPIO command (GPIO.add_event_detect) along with a try/except rule that makes the script pause and wait until something happens.



      I want to do something similar at the same time for a keyboard button press (not bothered which one right now), is there a way to do this that's similar to the GPIO.add_event_detect?



      an example in code:



      import RPi.GPIO as GPIO

      receiverPin = 14
      quitButton = 17

      GPIO.setmode(GPIO.BCM)
      GPIO.setup(receiverPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
      GPIO.setup(quitButton, GPIO.IN, pull_up_down=GPIO.PUD_UP)

      #FUNCTION ACTIVATED BY DESIRED CODE#
      def activate(channel):
      #do stuff#

      def direct_hit(channel):
      #do stuff#

      GPIO.add_event_detect(receiverPin, GPIO.BOTH, callback=direct_hit)

      #DESIRED CODE BLOCK
      keypress.add_event_detect(KEYPRESS_ENTER, callback=activate)

      try:
      GPIO.wait_for_edge(quitButton, GPIO.FALLING)
      print("Exiting")
      GPIO.cleanup()
      quit()
      except KeyboardInterrupt:
      GPIO.cleanup()
      GPIO.cleanup()


      Is there a way to do this? bear in mind I am self taught(poorly).



      Thanks in advance for any help.







      callback raspberry-pi3 python-3.4






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      asked Nov 15 '18 at 14:14









      Steve JenkinsSteve Jenkins

      41




      41






















          1 Answer
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          I made some research for you and found this library: https://github.com/boppreh/keyboard#keyboard.on_press which have event method on_press



          Just add:



          import keyboard
          keyboard.on_press = yourCallback


          Hope it will help you.






          share|improve this answer























          • many thanks for your effort. I appreciate it

            – Steve Jenkins
            Nov 25 '18 at 12:34











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          I made some research for you and found this library: https://github.com/boppreh/keyboard#keyboard.on_press which have event method on_press



          Just add:



          import keyboard
          keyboard.on_press = yourCallback


          Hope it will help you.






          share|improve this answer























          • many thanks for your effort. I appreciate it

            – Steve Jenkins
            Nov 25 '18 at 12:34















          0














          I made some research for you and found this library: https://github.com/boppreh/keyboard#keyboard.on_press which have event method on_press



          Just add:



          import keyboard
          keyboard.on_press = yourCallback


          Hope it will help you.






          share|improve this answer























          • many thanks for your effort. I appreciate it

            – Steve Jenkins
            Nov 25 '18 at 12:34













          0












          0








          0







          I made some research for you and found this library: https://github.com/boppreh/keyboard#keyboard.on_press which have event method on_press



          Just add:



          import keyboard
          keyboard.on_press = yourCallback


          Hope it will help you.






          share|improve this answer













          I made some research for you and found this library: https://github.com/boppreh/keyboard#keyboard.on_press which have event method on_press



          Just add:



          import keyboard
          keyboard.on_press = yourCallback


          Hope it will help you.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 20 '18 at 12:35









          KoxoKoxo

          34728




          34728












          • many thanks for your effort. I appreciate it

            – Steve Jenkins
            Nov 25 '18 at 12:34

















          • many thanks for your effort. I appreciate it

            – Steve Jenkins
            Nov 25 '18 at 12:34
















          many thanks for your effort. I appreciate it

          – Steve Jenkins
          Nov 25 '18 at 12:34





          many thanks for your effort. I appreciate it

          – Steve Jenkins
          Nov 25 '18 at 12:34



















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