Re: [Contiki-developers] Microcontroller-based router

[Giorgio M. <gio...@gm...>]

Guys, let me just say that we are missing the point here.

I'll try to be as clear as I can:

I'm not going to port Contiki on a different platform (router), or to  
add 6LoWPAN to a linksys,
but to develop a microcontroller-based router that runs with the  
Contiki OS.

Think to a mote that works like a DSL router.

Among the existing motes platform, which one could supply the relative  
needed horse-power? An ARM one?

Best,
Giorgio


Il giorno 15/ago/09, alle ore 18:17, David Kopf ha scritto:

> I  picked up a WRT310N for a dollar, needing replacement of the RJ45  
> block
> which was accomplished using one from an old 10MB/sec hub plus a  
> little
> filing on plastic.  I might flash DD-WRT with ipv6 routing someday  
> although
> ipv6 is working fine with it at the present. No hardware routing is  
> needed
> since all attached devices are in the same /64 subnet.  Radvd on  
> Ubuntu
> configures the addresses and routes everyone through a SixXS tunnel.
>
> There is no USB port but I think implementing TWI to a Raven or  
> Jackdaw
> would not be too difficult.  There wouldn't be much point in doing  
> that
> unless it gave entry into an extended mesh network, but then it  
> would be way
> cool.
>
> --------------------------------------------------
> From: "Jon Smirl" <jon...@gm...>
> Sent: Saturday, August 15, 2009 11:25 AM
> To: "Contiki developer mailing list"
> <con...@li...>
> Subject: Re: [Contiki-developers] Microcontroller-based router
>
>> On Sat, Aug 15, 2009 at 11:06 AM, David Kopf<da...@em...>  
>> wrote:
>>> Have you looked at the
>>> http://en.wikipedia.org/wiki/Linksys_WRT54G_series?
>>> I'd look for more power efficient platforms based on the ease of  
>>> porting
>>> that source code.
>>
>> Something like the WRT54G is the best solution. Check out DD-WRT.
>>
>> Use router hardware with a USB port. Now plug in a Ravenstick into  
>> the
>> router.  Rebuild DD-WRT with ipv6 routing support (it already works,
>> it just isn't enabled).  Now you have a three way router - Ethernet,
>> Wifi, 6lowpan/802.15.4.
>>
>> Router hardware like a WRT54G doesn't take that much power. It will
>> run off from batteries. You can probably lower the clock speed in
>> hardware to reduce power more. But wifi is not very power efficient  
>> so
>> there is a bottom floor. You can probably hack around and run it with
>> Power-over-Ethernet.
>>
>> If you are going for even less power on 802.15.4 you probably need to
>> build your own hardware. Then use something like ROLL on top of
>> 6lowpan. There are new ARM Cortex chips out with USB host support.  
>> Use
>> one of those and a Ravenstick and Wifi stick. This path is a lot more
>> work.
>
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008  
> 30-Day
> trial. Simplify your report design, integration and deployment - and  
> focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Contiki-developers mailing list
> Con...@li...
> https://lists.sourceforge.net/lists/listinfo/contiki-developers