RE: TINI wireless link - IR or RF?

Dear Simon - Re: "Can anyone tell me of any off-the-shelf ready-to-go gear
for this kind of thing?".

You might want to start here:

"IrDA functionality (plus a lot more) is now provided by STEP+ with SBX2 and
the IrDA serial adapter."

http://www.systronix.com/tini/step.htm

On this same page, also see:

STEP.IR schematics (200 KB)

IrDA code for STEP and PalmOS ->  http://www.systronix.com/irda/irda.htm


The STEP+ socket board works great, with the DalSemi TINI 80C390, Systronix
TStik 80C400, or Imsys SNAP.

Also, see:

http://www.systronix.com/expansion/simmserial/simmserial.htm

...which canuse the IrDa adapter:

http://www.systronix.com/expansion/serialadapters/serialadapters.htm

My preffered choice for wireless RF MODEMs (and "quick connect to a STEP+
serial port!), are at:

http://www.maxstream.net/

IMHO, I would go "wireless RF"... and you could still expand your serial I/O
with the "SIMMSerial board and DCE\DTE adapters (above).

Best regards, Kelly Smith

-----Original Message-----
From: tini-admin-6tN4nzCoH/[email protected] [mailto:tini-admin-6tN4nzCoH/[email protected]]On Behalf Of
Simon Melhuish
Sent: Tuesday, June 29, 2004 2:28 AM
To: tini-6tN4nzCoH/[email protected]
Subject: [TINI]TINI wireless link - IR or RF?


Hi.

I've been given with an urgent interfacing job, that will require
communicating wirelessly with a battery-powered TINI (or similar). Can
anyone
suggest where I should start?

The basic requirement is short range (< 3m) so I'm thinking IR. Also it's
going to be pretty dark (South Pole during the winter) which I suppose may
help. If I went RF I'd have to take care about interference. The data rate
need not be high (say 9600 Baud), but should be bidirectional.

I've seen some mention of irDA on this list in the past, but most often as a
work in progress. Can anyone tell me of any off-the-shelf ready-to-go gear
for this kind of thing? I need to have something running by Christmas at the
latest.

Thanks very much,

Simon

--
Dr. Simon J. Melhuish
http://melhuish.info/simon/
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