Re: WLAN transceiver module for motes?

Hello Iwo,


Meantime I am a bit closer to the goal here. In case anyone else is
going to be in the same boat some day this is really close to what's
needed to talk directly through a WLAN port:

http://www.digi.com/products/wireless/embedded80211.jsp


Hi Joerg,
If that is what you wanted, also take a look at:



http://www.dpactech.com/wireless_products/embedded-802.11-wireless-module.asp


They have the same type of thing, very robust and design for industrial
applications. If you give their support folks a call, tell Joe that
Charlie sent you... 8-)


Thanks, I certainly will. And if Joe answers I'll let him know ;-)

They call their products "Airborne", same as the Quatech folks do. Even
the part numbers are the same. Strange.

Anyway, the downside here is that while the products with CF card
interfaces are cheap ($30-$40) the minute you want RS232 on there it
jumps to around $100 even though it looks like the innards are nearly
the same. That is beyond budget for this case.



The CF card ones expect drivers and a TCP/IP stack on the
host.

The ones with serial port have an integrated host processor
with copious amounts of memory, etc. which runs the drivers,
the TCP/IP stack and some small application which bridges
between TCP/IP and the serial port. Quite often with a
proprietary protocol.

Typically, that device is a ARM-based SBC with uCLinux on it
and one of the CF-card WLAN devices attached.


Thanks, Iwo. Just got off the phone with one company (Digi) and they basically said the same thing. We would not need all that luxury in a RS232 equipped transceiver but that's pretty much the only versions out there. The other concern is product longevity which may be just a few years on CF versions and then you have to re-write. That would not be so cool.

--
Regards, Joerg

http://www.analogconsultants.com
.

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