Re: Re: Raspberry Pi in HA?

[Stuart Poulton <stuart@xxxxxxxxxxxxxx>]

Simon,

The key is the use of the DS2482-800, this provides 8 1-wire busses, so no
need for a hub.
As you correctly point out there are some power restrictions with the Pi.

I've done some initial designs for breakout boards

http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/

I'm willing to take suggestions and ideas though.
I'm also looking at i2c i/o options for example i2c relay modules.

Stuart


On 20 May 2012, at 12:37, Simon Haslam wrote:

> Yes, interesting work Stuart. One thing I'm not clear on is why go to
this trouble as compared to using a USB 1-wire interface (puce baboon, Link
USB etc)? To save the USB port or power?
>
> I'm thinking if it's worth making a PCB perhaps it should be a 1-wire
hub with, say, 4 networks. To me sounds useful for serious HA projects
using 1-wire as some devices (in my case my Hobbyboards 8 channel relay
controlling my heating) and some parts of a house will justify separate a
separate network to improve reliability.
>
> It's great to see active HA stuff happening on Raspi though!
>
> Simon
>
> [Non-text portions of this message have been removed]
>
>



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