Re: TI-H: Radio link.

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Radio link.
From: pea@dalnet.se
Date: Thu, 28 Oct 1999 09:24:37 +0100 (MET)
Reply-To: ti-hardware@lists.ticalc.org

Yes there was rather good RF-modules. That on I have in mind is a transceiver
with a onboard antenna for around $100 (5.5 × 5 cm board). I'm going to put
it on my homepage soon. The protocol I am going to use looks like this.
First I going to have a direct connection. The link looks just like a cable
to the TI.
Then you should be able to switch a switch were the link can recognize
different protocols from TI ex. I2C. Between the links there will be 
RS-232 maybe with some multi-user support. You have transfer rate of 9.6 Kbps.

/pea

At 20:17 1999-10-27 -0500, you wrote:
>
>From: Grant Stockly <gussie@stockly.com>
>> You can -easily- do that with an experimenters gunn from www.shfmicro.com
>
>I was thinking more along the lines of using the transmitter and receiver
>found here:
>
>http://home.att.net/~wzmicro/rf_xmitter_receiver.htm
>
>Its a 418Mc AM transmitter, which "transmit data up to 4KHZ", which I guess
>means it will handle about 4Kbit/s transfer.  That would be pretty darn
>slow, but fairly cheap too.
>
>Along with a micro and associated parts it would probably be about $35 or so
>for parts, and you could probably fit it completely inside the calc if you
>wanted.
>
>For about the same price you could use these 'Ming' boards:
>
>http://www.rentron.com/RF-Remote.htm
>
>Looks like they'll run at about 1200Bps, probably not alot slower than the
>previous version.
>
>Anyway, even if these aren't fast enough for a good TI radio link, they
>could be quite useful for other projects, and they are reasonably priced.
>
>DK
>
>
>
>

Follow-Ups:

Re: TI-H: Radio link.

From: Grant Stockly <gussie@stockly.com>