Even though this may not appear to be an Arduino question, perhaps the only solution is with an Ethernet Shield...
The problem: I have a PC that is connected using WLAN, that is tucked away in a cabinet that I need to keep on. Wake On Lan (WOL) would be a great solution, but wireless WOL is not available.
Fortunately, there is an unused ethernet port on the PC that supports WOL....(wiring up to the main network isn't possible, but having a little device near the PC is OK)
So, question is: Does anyone know of a device that exists that does nothing but send broadcast WOL signals over ethernet? Would the Ethernet Shield be a good candidate for such a device? The library doesn't seem too compatible with what I'm attempting, or is it?
I would envisage that the arduino would be externally powered and just sends broadcast WOL packets ever (?) seconds/minutes. (I could even connect the USB to the arduino and tell it to stop broadcasting after ? minutes once the PC is up and running again....)
...Or any other suggestions? Again, all I really want to achieve is to power the PC on if it's off! (PS: the PC's BIOS has absolutely no ACPI settings other than WOL)
Many thanks, Craig.