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Re: RPI.GPIO Help

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From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: RPI.GPIO Help
Date Tue, 01 Sep 2015 02:08:35 -0400
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On Mon, 31 Aug 2015 14:07:58 -0500, Tim Daneliuk
<tundra@bogus-city.tundraware.com> declaimed the following:

>On 08/16/2015 02:40 PM, John McKenzie wrote:
>> 
>>  Hello, all. I am hoping some people here are familiar with the RPi.GPIO 
>> python module for the Raspberry Pi.
>
>
>I am not familiar with the module, but I am quite familiar with dealing
>with hardware interfacing, mostly in assembler.
>
>One thing you need to ensure is that either the module or your
>code implents software debounce.  When a button is pressed or switched moved,
>there is mechanical bounce for a some period of time immediately thereafter.
>In the time right after the switch/button is pressed, the mechanical closure
>"bounces" between "on" and "off" for a little while, until it settles down
>to the position you've selected.
>
	Since the OP's intent seems to be for accumulative time for each
button, debounce likely isn't needed. If it were triggering some
significant action (issuing a serial-numbered ticket, say), debounce would
be needed... 
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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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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