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Groups > comp.lang.python > #95819
| From | Dennis Lee Bieber <wlfraed@ix.netcom.com> |
|---|---|
| Subject | Re: RPI.GPIO Help |
| Date | 2015-09-01 02:08 -0400 |
| Organization | IISS Elusive Unicorn |
| References | <lG5Ax.73238$E26.47630@fx20.iad> <e9lebc-nmi2.ln1@oceanview.tundraware.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.36.1441087727.23514.python-list@python.org> (permalink) |
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/
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll 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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