[Elecraft] Relay boards for remote control?

[William Evans]

I have used the denkovi 16 relay set and the 8 relay set with ethernet access to design and build a controller which automatically selects either my normal antenna for each band or an alternate antenna for that band.  I use the K3's BCD outputs to determine the band, and a arduino programmed to decipher which relay to kick in.  The unit also will switch my two radios over to a dummy load (all done through relay switching of 12 volt lines).  I use the ethernet module to control the relays when I have a radio in my living room (as opposed to the one in my shack).
With the denkovi relays, you can choose from ethernet controlled, USB control, or serial control, and they have some excellent software for each module. The ethernet module has a built-in web site which you can set up to access from your computer.

I have not found any negatives with these units.  They are well-built and well documented.    

Bill
W4ISH

> On Tue, Jul 16, 2013 at 1:06 PM, Tom <tomb18 at videotron.ca> wrote:
>> Can anyone tell me what would be the most popular rs232 (or USB) relay board for use in computer control of a k3 setup? I use the canakit 4 relay USB board. Are there others?