Re: RF in TINI

Marc,

  Thanks a lot. I checked the site and they do have duplex modules. Can I 
ask you one more question. How can I interface the module thru TINI. Like 
can I just plug in the module to the serial port or does it require 
anything more. Sorry if its very trivial. I know very little about these 
low level stuff.

Suresh


On Thu, 26 Jun 2003, Marc Nicholas wrote:

> 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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