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splitting P1 to 2 device's

Posted: Thu Apr 18, 2013 9:20 am
by Ruud
Is there a simple way to use two device's over one P1 port.
I have two device's i want to use Toon (eneco) and Smile (plugwise)

Re: splitting P1 to 2 device's

Posted: Thu Apr 18, 2013 1:11 pm
by vanisher
Good question. In the near future I'll get a 'Laadpaal' for my hybrid car.. That Laadpaal can be connected to a smartmeter.

Re: splitting P1 to 2 device's

Posted: Thu Apr 18, 2013 2:38 pm
by marcelr
Google for "serial splitter"

grtz,

marcelr

Re: splitting P1 to 2 device's

Posted: Thu Apr 18, 2013 3:42 pm
by mo046
Hi there,

I use a simple telephone splitter. The thing is, one of the signal lines is being used to "trigger" the P1 port to start sending the datagrams. The trigger line is (whenI remember well) pulling up the input of the P1 port to 5 Volt. This is done by the device connected to the P1 port.
However, you will be attaching two devices that both trigger the P1 port. I'm not shure if this will cause problems, that's why I have a master device that triggers the P1 port. The second device is only listening, I disconnected the trigger port from the connector of the second device in order to avoid any electrical interference with the master device.

Hope this helps.

Re: splitting P1 to 2 device's

Posted: Wed Nov 06, 2013 3:59 pm
by pklijnjan
I use a simple splitter. I read the P1 port with a homeseer script and also connect my Toon In the splitter I cut the wire from the toon meter reader (trigger)
It work fine for both devices.

Re: splitting P1 to 2 device's

Posted: Sat Nov 09, 2013 10:37 am
by PietjeNL
The Smile P1 could have the "old" hardware.
They replaced my P1 wire and now i dont have any problems anymore.
Using a normal telephone splitter aswell.

Re: splitting P1 to 2 device's

Posted: Sat Jun 14, 2014 7:20 pm
by sincze
mo046 wrote:Hi there,

I use a simple telephone splitter. The thing is, one of the signal lines is being used to "trigger" the P1 port to start sending the datagrams. The trigger line is (whenI remember well) pulling up the input of the P1 port to 5 Volt. This is done by the device connected to the P1 port.
However, you will be attaching two devices that both trigger the P1 port. I'm not shure if this will cause problems, that's why I have a master device that triggers the P1 port. The second device is only listening, I disconnected the trigger port from the connector of the second device in order to avoid any electrical interference with the master device.

Hope this helps.
I can confirm this is fully working for 2 Raspberrys reading the P1 ;-) and dealing with the data. :)

Re: splitting P1 to 2 device's

Posted: Sun Jun 15, 2014 2:23 am
by Ruud
Witch pin number ??