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



In article
<e84f3af4-da6d-4ae9-8974-54354ec16307@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Jean Dupont <jeandupont115@xxxxxxxxx> 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.
.