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| The Following User Says Thank You to misiak For This Useful Post: | ||
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2016-04-01
, 22:46
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Community Council |
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Joined on Sep 2010
@ Mbabane
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#192
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Thanks for the help and ideas misiak 
I am 100% sure that the ELM327 'speaks' ascii. You can see this in pyobd code, and also earlier posts in this thread, e.g.
Post 66
Post 53
I'll look deeper in pyobd code as you suggested.
I am 100% sure that the ELM327 'speaks' ascii. You can see this in pyobd code, and also earlier posts in this thread, e.g.
Post 66
Post 53
I'll look deeper in pyobd code as you suggested.
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2016-04-01
, 22:55
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Community Council |
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#193
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Originally Posted by misiak
exactly what i'm doing, with no success so far. i would say it's N900 problem, but minicom/screen on pc doesn't get anywhere too. 1AM here .. I should sleep and maybe will have clearer mind in the morning
....
edit: have you read http://gersic.com/connecting-your-ra...bd-ii-adapter/ and tried reproducing that on N900 instead of raspberry?
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2016-04-02
, 14:19
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Community Council |
Posts: 685 |
Thanked: 1,235 times |
Joined on Sep 2010
@ Mbabane
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#194
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i can now send/receive data via
and the output is caught in another terminal with
AT L1 command is very useful with the above setup so the ELM sends line feeds after each response. Now I don't need to depend on an Android device finally 
Will be further investigating why pyobd eventually stops reading data
Last edited by sicelo; 2016-04-02 at 14:25.
Code:
echo -n -e "<elm cmd>" > /dev/rfcomm0 ## e.g. AT@1, ATI
Code:
tail -f /dev/rfcomm0
Will be further investigating why pyobd eventually stops reading data
Last edited by sicelo; 2016-04-02 at 14:25.
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2016-04-03
, 18:53
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Community Council |
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#195
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In the meantime, decided to build obdgpslogger for the N900. works very well for what I want to do
http://talk.maemo.org/showthread.php...33#post1502733
Probably because it's C based, it logs faster than pyOBD. Not to say or suggest that pyOBD is inferior in any way
Last edited by sicelo; 2016-04-03 at 20:37.
http://talk.maemo.org/showthread.php...33#post1502733
Probably because it's C based, it logs faster than pyOBD. Not to say or suggest that pyOBD is inferior in any way
Last edited by sicelo; 2016-04-03 at 20:37.
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Maybe start with some simple python code, based on /opt/pyobd/obd_io.py around lines 75-90 (class OBDPort, init method seems to set connection parameters) and build some simple debug tool on that?
edit: have you read http://gersic.com/connecting-your-ra...bd-ii-adapter/ and tried reproducing that on N900 instead of raspberry?