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 Post subject: Doc for RS485 modules
PostPosted: Fri Apr 08, 2016 1:43 pm 

Joined: Fri Apr 08, 2016 1:39 pm
Posts: 3
Hi,

I'm looking for RS485 modules doc for raspberry. I'm looking for sub-d9 wire connection scheme.

Can you give a link to the documentation

Thanks in advance


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 Post subject: Re: Doc for RS485 modules
PostPosted: Mon Apr 11, 2016 7:23 am 

Joined: Mon Sep 28, 2009 12:06 pm
Posts: 11366
Hello Iber72,
Our RS485 module only support two wires half duplex interface. The DB9 pinout is:

Pin1 -> NC
Pin2 -> NC
Pin3 -> +/-TX
Pin4 -> +/-RX
Pin5 -> NC
Pin6 -> NC
Pin7 -> NC
Pin8 -> NC
Pin9 -> NC

Regards


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 Post subject: Re: Doc for RS485 modules
PostPosted: Mon Apr 11, 2016 8:09 am 

Joined: Fri Apr 08, 2016 1:39 pm
Posts: 3
It is written full duplex here :
https://www.cooking-hacks.com/documenta ... l-galileo/


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 Post subject: Re: Doc for RS485 modules
PostPosted: Mon Apr 11, 2016 12:17 pm 

Joined: Mon Sep 28, 2009 12:06 pm
Posts: 11366
Hello Iber72,
This is the description of the RS485 protocol, our module is half duplex.
Regards.


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 Post subject: Re: Doc for RS485 modules
PostPosted: Mon Apr 11, 2016 12:46 pm 

Joined: Fri Apr 08, 2016 1:39 pm
Posts: 3
Where is module description then?


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 Post subject: Re: Doc for RS485 modules
PostPosted: Tue Apr 12, 2016 8:12 am 

Joined: Mon Sep 28, 2009 12:06 pm
Posts: 11366
Hi Iber72,

All the information available of the module is in the tutorial:

https://www.cooking-hacks.com/documenta ... l-galileo/

Also, you can see the information available of the manufacturer of the module:

http://www.libelium.com/downloads/docum ... _guide.pdf

Regards


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