Re: RF in TINI

http://www.laipac.com

Their 434Mhz modules cost less than US$10 for the receiver/transmitter...and
accept "raw" input via a single pin. These are simplex devices,
however...I'm still not 100% sure if you want duplex operation.

If you want full-duplex, Laipac have some solutions as do other vendors.


-marc

On 26/6/03 13:32, "Suresh Purini" 
<suresh1-rEkehDDEPI54piUD7e9S/g@xxxxxxxxxxxxxxxx> wrote:

> 
> 
> Marc,
> 
>> What sort of range and bandwidth/latency can you live with? You've got a lot
>> of options -- the requirements you've listed only really cover the
>> application layer, not the link layer ;-)
> 
> 
> :) ..  Its an experimental system where we will be testing our stuff in a
> lab(room). So 30m range is good enough for us.
> 
> Regarding bandwidth and latency requirements, there are really no hard
> constraints. Something which is cheap(btwn 100-200$) will serve.
> 
> What I am wondering if its a blutooth device, will the MAC protocol be
> built into the device in which case I cannot experiment with my MAC
> protocols. I want something on which I have explicit control like when I
> can put the device into sleep mode or send/receive data, things like that.
> 
> Suresh
> 
> 
> 
>> -marc
>> 
>> 
>> On 26/6/03 12:46, "Suresh Purini" 
>> <suresh1-rEkehDDEPI54piUD7e9S/g@xxxxxxxxxxxxxxxx> wrote:
>> 
>>> 
>>> Thanks a lot for all of you.
>>> 
>>> I am giving more details about my project.
>>> 
>>> 
>>> We are trying to develop "Reconfigurable MiddleWare(based on CORBA)" for
>>> embedded systems. As a part of this project we are looking at protocol
>>> stack composability depending on user requirements. For example the user
>>> can choose a naive MAC protocol or some power aware MAC protocol as a part
>>> of his application development.
>>> 
>>> And we statically compose the middleware depending on the users QOS
>>> requirements(so that the memory footprint will be small).
>>> 
>>> We want to demonstrate the aforementioned project using few embedded
>>> devices.
>>> 
>>> So I am just wondering whether I can find a very easy way to hook up an RF
>>> interface to TINI(I am not expert in desigining circuits :( :)).  Also I
>>> want to measure the power consumption of the system.
>>> 
>>> I will try to look in the directions pointed by you.
>>> 
>>> Thanks once again.
>>> 
>>> Sincerely
>>> Suresh
>>> 
>>> On Thu, 26 Jun 2003, Marc Nicholas wrote:
>>> 
>>>> Well, yes it's possible to use various types of embedded radios...
>>>> 
>>>> However, if you're planning on selling a commercial product with an
>>>> embedded
>>>> radio module (and not a device such as a radio modem), do bear in mind that
>>>> you'll need to have the whole unit FCC certified.
>>>> 
>>>> If it's just a private use project, you can just use an ISM band radio
>>>> modem...although most of the ISM modules don't generally have enough power
>>>> to be useful for remote telemetry applications (what's your application?).
>>>> 
>>>> 
>>>> -marc
>>>> 
>>>> On 26/6/03 08:19, "Suresh Purini" 
>>>> <suresh1-rEkehDDEPI54piUD7e9S/g@xxxxxxxxxxxxxxxx> wrote:
>>>> 
>>>>> 
>>>>> Hi-
>>>>> 
>>>>> I am new to TINI and embedded systems in general. Is it possible to have
>>>>> an RF network interface for TINI. I also want the embedded system to be
>>>>> powered by battery as i want to measure the power usage(working on some
>>>>> power aware protocols).
>>>>> 
>>>>> Any help in this regard is well appreiciated.
>>>>> 
>>>>> Thanks in Advance.
>>>>> 
>>>>> Sincerely
>>>>> Suresh
>>>>> 
>>>>> 
>>>>> _______________________________________________
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>>>>> 
>>>> 
>>>>  
>>>> --------------------------------------------------
>>>> Marc Nicholas Geekythings Inc. C/416.543.4896
>>>> UNIX, Database, Security and Networking Consulting
>>>> 
>>>> 
>>> 
>>> 
>> 
>>  
>> --------------------------------------------------
>> Marc Nicholas Geekythings Inc. C/416.543.4896
>> UNIX, Database, Security and Networking Consulting
>> 
>> 
> 
> 

 
--------------------------------------------------
Marc Nicholas Geekythings Inc. C/416.543.4896
UNIX, Database, Security and Networking Consulting

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