[Coco] Arduino question

Joel Ewy jcewy at swbell.net
Mon Oct 3 00:05:54 EDT 2011


On 10/02/2011 09:48 PM, Aaron Wolfe wrote:
> DW4 works fine on the two ARM based devices I have tried it on, the
> Linksys NSLU2 and the Nokia N800 tablet, both of which are
> considerably less powerful than cpu in the Raspberry Pi.
> The NSLU2 has only a 266Mhz CPU and 32MB ram, yet works well, so I
> have high hopes of a tiny and efficient solution for running the
> server in the near future.
>

Very nice -- I'm glad to know that.  I may have been confusing my Java 
story with some other program.

JCE

> On Sun, Oct 2, 2011 at 10:27 PM, Joel Ewy<jcewy at swbell.net>  wrote:
>> Gene, the Arduino is AVR, as others have mentioned.  Someone on this list
>> mentioned the Raspberry Pi board as a possible Drivewire server.  It is a
>> small ARM-based computer that is intended to sell for $25 @128M, $35 @256M
>> (RAM) and is supposed to be available by the end of the year.  Maybe that'
>> the ARM device you were thinking of.  It can already boot Debian and other
>> Linux distros, and I believe they're working on customized versions that
>> play nice with its relatively modest specs.  I'll definitely be getting one
>> or two when they become available.
>>
>> As for using them as a Drivewire server (which would be absolutely
>> fantastic, and unbeatable when you look at the intersection of price, size,
>> and power consumption (about 1W)) I think the only hitch is that the Open
>> Source Java runtime environments available for ARM might not quite be
>> suitable for the DW4 server.  I seem to have vague memories of being unable
>> to get DW4 running under (x86) Ubuntu until I installed that bad old
>> proprietary JRE -- though I may be confusing that with something else....
>>   But maybe Aaron could help find a way to make it work.
>>
>> JCE
>>
>> On 10/02/2011 02:10 PM, gene heskett wrote:
>>> On Sunday, October 02, 2011 03:05:23 PM jdagget at gate.net did opine:
>>>
>>>> Gene
>>>>
>>>> in addition to makerbot there is Sparkfun which has a lot of Arduino
>>>> stuff. The standard Arduino boards are somewhat I/o limited as the
>>>> boards are basically 2.7 inch by 2.7 inch. The Mega format boards do
>>>> offer more I/O.
>>>>
>>>> The Arduino main boards are Atmel AVR based. So most likely the TCP/IP
>>>> stack is written around that. There is also a variant that is called
>>>> Esduino which is based on a Freescale HC12 processor. The MC9S12NE64
>>>> could be used instead of the MC9S12C32 chip with a board layout change.
>>>> There is also a TCP/IP software for that chip.
>>>>
>>>> james
>>>>
>>> Thanks James.  Am I getting the wrong impression that the faster varieties
>>> of the arduino were ARM based?  Some of those (ARM stuff) are being
>>> offered
>>> at 400mhz clock rates.  Being on the lkml list, I see an awful lot of
>>> patches to make ARM builds work like the x86 stuff does.
>>>
>>> Cheers, Gene
>>
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