Re: [Owfs-developers] 1-wire hubs

2019-07-22 Thread Roland Franke 

If you will need an I2C adapter including an 8-channel 1-wire controller,
you may take an look at:
https://www.axiris.eu/en/index.php/1-wire/1-wire-mini-host
Here is an DS2482-800 installed inside regarding the wiring-diagram

Best regards,
Roland Franke

-Ursprüngliche Nachricht- 
From: Mick Sulley

Sent: Monday, July 22, 2019 8:36 PM
To: [email protected]
Subject: Re: [Owfs-developers] 1-wire hubs

Yes indeed, this was the message

I have a Hobyboards 6 channel hub which has been in my drawer for many
years.  I did use it but changed over to a Sheepwalk RPi3 ages ago
because that works directly with a Pi.  I have been meaning to put it on
eBay but never got around to it, do you want it?

Cheers

Mick

On 22/07/2019 14:20, Jim Duda wrote:

Hi,

Someone sent me a private email regards having an extra hobbyboards hub.
I just happened to notice it got into my spam folder.
I went to respond, but somehow lost the email.

If you are listening, can you try again please?
I am indeed interested.

Regards,

Jim


On 7/20/19 10:52 AM, Jim Duda wrote:

Hello,

I have a 6 port 1-wire HUB that I purchased years ago from 
hobbyboards.com

I think the device has finally stopped working.
Hobbyboards hasn't come back online yet.

Can anyone offer any advice on any available 1-wire hub devices for sale?

The only one I can find is from unipi.
https://www.unipi.technology/1-wire-8-port-hub-p31

Any advice appreciated.

Regards,

Jim





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Re: [Owfs-developers] 1-wire hubs

2019-07-22 Thread Mick Sulley 

Yes indeed, this was the message

I have a Hobyboards 6 channel hub which has been in my drawer for many 
years.  I did use it but changed over to a Sheepwalk RPi3 ages ago 
because that works directly with a Pi.  I have been meaning to put it on 
eBay but never got around to it, do you want it?


Cheers

Mick

On 22/07/2019 14:20, Jim Duda wrote:

Hi,

Someone sent me a private email regards having an extra hobbyboards hub.
I just happened to notice it got into my spam folder.
I went to respond, but somehow lost the email.

If you are listening, can you try again please?
I am indeed interested.

Regards,

Jim


On 7/20/19 10:52 AM, Jim Duda wrote:

Hello,

I have a 6 port 1-wire HUB that I purchased years ago from hobbyboards.com
I think the device has finally stopped working.
Hobbyboards hasn't come back online yet.

Can anyone offer any advice on any available 1-wire hub devices for sale?

The only one I can find is from unipi.
https://www.unipi.technology/1-wire-8-port-hub-p31

Any advice appreciated.

Regards,

Jim





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Re: [Owfs-developers] 1-wire hubs

2019-07-22 Thread Jim Duda 
Hi,

Someone sent me a private email regards having an extra hobbyboards hub.
I just happened to notice it got into my spam folder.
I went to respond, but somehow lost the email.

If you are listening, can you try again please?
I am indeed interested.

Regards,

Jim


On 7/20/19 10:52 AM, Jim Duda wrote:
> Hello,
> 
> I have a 6 port 1-wire HUB that I purchased years ago from hobbyboards.com
> I think the device has finally stopped working.
> Hobbyboards hasn't come back online yet.
> 
> Can anyone offer any advice on any available 1-wire hub devices for sale?
> 
> The only one I can find is from unipi.
> https://www.unipi.technology/1-wire-8-port-hub-p31
> 
> Any advice appreciated.
> 
> Regards,
> 
> Jim
> 




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Re: [Owfs-developers] 1-wire hubs

2019-07-21 Thread Stefano Miccoli via Owfs-developers 
I assume that by “1-wire hub” you are referring to a device that allows you to 
access several distinct physical 1-wire busses as a single logical bus. I think 
the hub as a point in which a single 1-wire bus “transparently” branches out 
into several physical distinct busses.

In some cases you do not need a hub, because if you connect multiple bus 
masters to a single owserver host, the “root” view will show you all devices 
found under the different busses:

/26.xxx
/26.yyy
/bus.0/26.xxx
/bus.1/26.yyy

In my opinion you need a 1-wire hub only if the physical location at which the 
different 1-wire buses branch is far from the location at which your owserver 
host is located, but again with the availability of low-cost single board 
computers, it could be easier to place an owserver host at the branching 
location.

This said, iButtonLink sells the linkhube: 
https://www.ibuttonlink.com/products/linkhube 
 (which is a bit expensive, in 
my opinion.)

The unipi product does not seem to be a “1-wire hub” in the sense defined 
above, as already noted by Jan.

Stefano

 
> On 20 Jul 2019, at 16:52, Jim Duda  wrote:
> 
> Hello,
> 
> I have a 6 port 1-wire HUB that I purchased years ago from hobbyboards.com
> I think the device has finally stopped working.
> Hobbyboards hasn't come back online yet.
> 
> Can anyone offer any advice on any available 1-wire hub devices for sale?
> 
> The only one I can find is from unipi.
> https://www.unipi.technology/1-wire-8-port-hub-p31
> 
> Any advice appreciated.
> 
> Regards,
> 
> Jim
> 
> 
> 
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Re: [Owfs-developers] 1-wire hubs

2019-07-20 Thread Jan Kandziora 
Am 20.07.19 um 16:52 schrieb Jim Duda:
> Hello,
>
> I have a 6 port 1-wire HUB that I purchased years ago from hobbyboards.com
> I think the device has finally stopped working.
> Hobbyboards hasn't come back online yet.
>
> Can anyone offer any advice on any available 1-wire hub devices for sale?
>
> The only one I can find is from unipi.
> https://www.unipi.technology/1-wire-8-port-hub-p31
>
If I understand the port wiring given on that site correctly, this is a
purely passive wiring helper.

You have to wire each sensors so it's at the tip of a lobe coming from
the 3+6 GND+DQ pair and going into the 8+7 GND+DQ pair.

Kind regards

Jan



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