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Re: Implementing a multivibrator function with python

From unknown <unknown@unknown.com>
Subject Re: Implementing a multivibrator function with python
Newsgroups comp.lang.python
References <c763cc2a-83d2-4ed7-9df6-83371e83d841@googlegroups.com> <c763cc2a-83d2-4ed7-9df6-83371e83d841@googlegroups.com> <mailman.2367.1384167379.18130.python-list@python.org> <895644e2-cf9c-45fe-a908-0391b65e8614@googlegroups.com>
Message-ID <Cksgu.53487$F07.50558@fx06.am4> (permalink)
Organization virginmedia.com
Date 2013-11-12 16:04 +0000

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On Tue, 12 Nov 2013 06:44:05 -0800, JL wrote:

> I am actually running python on raspberry pi. The trigger event is a
> button-press.
> 
> On Monday, November 11, 2013 6:56:03 PM UTC+8, Dave Angel wrote:
>> On Mon, 11 Nov 2013 01:41:58 -0800 (PST), JL <lightaiyee@gmail.com>
>> 
>> wrote:
>> 
>> > - If the event happens again before the 5secs expire, the high
>> 
>> duration will be extended by another 5 secs. This works like a
>> 
>> retriggerable multivibrator for those who are into electronics.
>> 
>> 
>> 
>> More precisely a retriggerable monostable multivibrator.
>> 
>> 
>> 
>> The question makes little sense unless you're running in an event
>> 
>> driven environment, such as a gui. Name the environment and somebody
>> 
>> can probably help.
>> 
>> 
>> 
>> --
>> 
>> DaveA

How critical is the output pulse time?
is it a state that can be polled to regularly & changed if the timeout 
has been exceeded or does it need to switch in the background?

if you need to trigger & switch in the background you will probably need 
to start playing with threads or multiprocessing.

greater detail on what you are trying to achieve project wise may assist 
here

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Thread

Implementing a multivibrator function with python JL <lightaiyee@gmail.com> - 2013-11-11 01:41 -0800
  Re: Implementing a multivibrator function with python Dave Angel <davea@davea.name> - 2013-11-11 04:56 -0600
    Re: Implementing a multivibrator function with python JL <lightaiyee@gmail.com> - 2013-11-12 06:44 -0800
      Re: Implementing a multivibrator function with python unknown <unknown@unknown.com> - 2013-11-12 16:04 +0000
      Re: Implementing a multivibrator function with python Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-12 17:37 +0100
      Re: Implementing a multivibrator function with python Joel Goldstick <joel.goldstick@gmail.com> - 2013-11-12 11:47 -0500
      Re: Implementing a multivibrator function with python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-11-12 19:42 -0500
  Re: Implementing a multivibrator function with python Terry Reedy <tjreedy@udel.edu> - 2013-11-11 05:58 -0500
  Re: Implementing a multivibrator function with python Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-11 15:00 +0100

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