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Re: how to read serial stream of data [newbie]

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In article 
<e84f3af4-da6d-4ae9-8974-54354ec16307@b18g2000vbz.googlegroups.com>,
 Jean Dupont <jeandupont115@gmail.com> wrote:

> I'd like to read in a stream of data which looks like this:
> the device sends out a byte-string of 11 bytes roughly every second:
> 
>     B0B0B0B0B03131B0B50D8A
>     B0B0B0B0B03131B0B50D8A
>     B0B0B031B63131B0310D8A
>     B0B034B3323432B3310D8A
>     B0B03237B53432B3310D8A
> .
> .
> .
> 
> As you see every string is ended by 0D8A
> How can this be accomplished in Python?

The basic idea would be to open your datastream in binary mode 
(http://docs.python.org/library/functions.html#open), then use read(11) 
to read exactly 11 bytes into a string.

Depending on what the 11 bytes are, you might want to use the struct 
module (http://docs.python.org/library/struct.html) to extract the data 
in a more useful form.

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Thread

how to read serial stream of data [newbie] Jean Dupont <jeandupont115@gmail.com> - 2012-02-06 13:40 -0800
  Re: how to read serial stream of data [newbie] Roy Smith <roy@panix.com> - 2012-02-07 00:07 -0500
    Re: how to read serial stream of data [newbie] Jean Dupont <jeandupont115@gmail.com> - 2012-02-07 04:13 -0800
      Re: how to read serial stream of data [newbie] Antti J Ylikoski <antti.ylikoski@tkk.fi> - 2012-02-07 15:48 +0200
        Re: how to read serial stream of data [newbie] Peter Otten <__peter__@web.de> - 2012-02-07 15:02 +0100
          Re: how to read serial stream of data [newbie] Antti J Ylikoski <antti.ylikoski@tkk.fi> - 2012-02-07 19:44 +0200
        Re: how to read serial stream of data [newbie] Heiko Wundram <modelnine@modelnine.org> - 2012-02-07 15:04 +0100
          Re: how to read serial stream of data [newbie] Jean Dupont <jeandupont115@gmail.com> - 2012-02-07 06:46 -0800
      Re: how to read serial stream of data [newbie] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-02-07 12:44 -0500

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