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Re: RPI.GPIO Help

From John McKenzie <davros@bellaliant.net>
Subject Re: RPI.GPIO Help
Newsgroups comp.lang.python
References <lG5Ax.73238$E26.47630@fx20.iad>
Message-ID <0yHFx.3758$_H1.2845@fx23.iad> (permalink)
Date 2015-09-02 18:50 +0000

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 Hakugin: Thanks for the correction. Someone elsewhere showed me example 
code that was very close to yours, with that being the main difference. 
His gave an error message that red_button was undefined so I moved the 
code block below the callbacks. After that it ran without producing 
errors but it was unresponsive. Will try your updated version tomorrow 
and will keep fiddling with his.

 Thank you all for warning me about debouncing. The RPi.GPIO library has 
built in debouncing. You can even adjust the timing of it.

 Turns out I got one thing right. Someone who knows better than I 
explained that GPIO.Cleanup() does go at the bottom and outside the def 
exit_handler() code block like I had it originally.

 Johannes: Thanks for sharing that. I will take a look at it when I have 
more time. Must head to the hospital for my treatment in a few minutes.

>Are you still calling GPIO.add_event_detect in a while loop?

 MRAB, apparently yes. Hakugin noticed and update his example code.

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Thread

RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-08-16 19:40 +0000
  Re: RPI.GPIO Help MRAB <python@mrabarnett.plus.com> - 2015-08-16 21:15 +0100
    Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-08-20 15:12 +0000
      Re: RPI.GPIO Help MRAB <python@mrabarnett.plus.com> - 2015-08-20 16:45 +0100
        Re: RPI.GPIO Help alister <alister.nospam.ware@ntlworld.com> - 2015-08-20 15:54 +0000
      Re: RPI.GPIO Help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-08-20 21:27 -0400
        Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-08-28 17:40 +0000
          Re: RPI.GPIO Help hakugin.gin@gmail.com - 2015-08-28 13:56 -0700
          Re: RPI.GPIO Help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-08-29 14:21 -0400
  Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-08-31 17:41 +0000
    Re: RPI.GPIO Help hakugin.gin@gmail.com - 2015-08-31 11:25 -0700
    Re: RPI.GPIO Help MRAB <python@mrabarnett.plus.com> - 2015-08-31 19:34 +0100
    Re: RPI.GPIO Help Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-09-01 10:58 +0200
  Re: RPI.GPIO Help Tim Daneliuk <tundra@bogus-city.tundraware.com> - 2015-08-31 14:07 -0500
    Re: RPI.GPIO Help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-09-01 02:08 -0400
  Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-09-02 18:50 +0000
  Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-09-09 19:03 +0000
    Re: RPI.GPIO Help MRAB <python@mrabarnett.plus.com> - 2015-09-09 20:29 +0100
  Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-09-10 15:56 +0000
    Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-09-11 18:24 +0000
      Re: RPI.GPIO Help MRAB <python@mrabarnett.plus.com> - 2015-09-11 19:49 +0100
      Re: RPI.GPIO Help hakugin.gin@gmail.com - 2015-09-11 12:00 -0700
      Re: RPI.GPIO Help hakugin.gin@gmail.com - 2015-09-11 12:24 -0700
      Re: RPI.GPIO Help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-09-11 21:10 -0400
  Re: RPI.GPIO Help John McKenzie <davros@bellaliant.net> - 2015-09-13 06:08 +0000
    Re: RPI.GPIO Help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-09-13 12:24 -0400
    Re: RPI.GPIO Help hakugin.gin@gmail.com - 2015-09-14 05:53 -0700

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