[Elecraft] Feature Request: Assert KX3 ACC2 GPIO line on tune

[Bruce Nourish]

Hi folks,

I'm building an Arduino-based mag-loop autotuner, and I have a feature
request for better integration with the KX3. Would it be possible to create
a new mode for the ACC2 GPIO line, to go high when the radio is in
transmitting a carrier in response to a user pushing TUNE, and low at all
other times (specifically including when the user pushes ATU tune)? I'm
open to more sophisticated or bidirectional communication on that line too,
but this seems like an easy place to start.

I don't have a K3, and I don't know which ACC line would be most suitable
for that radio, but if this is a good idea for the KX3, please consider a
similar request for this feature on that radio.

Thanks!

Bruce