I have been controlling my radio, rotator, SteppIR, and a commercial
relay/ADC board over my LAN and internet for 5-6 years now. I now also
control/monitor my own LP-100 wattmeter and LP-Remote relay/logic/ADC
board over the network. I wrote an article several years ago in QST on
how to do this, and there is more info on my website about the process.
The hardware is not very expensive, especially if you pick it up on
eBay, and the software programs are mostly free downloads on my website
and others.
73,
Larry N8LP
www.telepostinc.com
Ian Stirling wrote:
On Monday 04 June 2007 11:27:17 Brian Lloyd wrote:
What we really need is a general purpose device that interfaces on
the network and may be easily addressed by software.
It's not widely known that the Linksys WRT54G series wireless
routers have two serial ports that are brought to a board connector
at logic levels. There are no RS-232 level changers on the board
and it follows that Linksys doesn't support them in the firmware.
http://openwrt.org
This site has open source GPL firmware that runs an embedded
gnu/linux system, replacing the Linksys firmware. It runs on many
wireless routers, not only Linksys. The two serial ports are
supported as /dev/ttyS0 and /dev/ttyS1.
I was disappointed to find that my WRT54G is version 5 and has
only half the flash and ram that versions 1 to 4 have, and consequently
is minimally supported by OpenWRT. So I replaced it with a WRT54GL,
Linksys's acknowledgment that there are tinkerers in the world who
want the original flash and ram back, at a higher price of course.
There is a serial over Bluetooth standard.
All that's needed is Simon's HRD to invent, or use a serial over Wifi
and connect our serial enabled radios to a router's serial port.
With the router's firmware open source and clever people so minded,
operating the radio over the network isn't so distant a dream.
Then there's Tentec's Omni VII, an already network enabled
transceiver with an Ethernet connection, easily added to a consumer
network.
I think Elecraft missed an opportunity in the design of the K3
regarding networking.
Ian, G4ICV, AB2GR, K2 #4962
--
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