[Elecraft] [K3] GPIO input to switch output power with external amplifier on?

[Thomas Horsten]

Ok, external control box it is then. I suppose a small AVR will do the job,
but now to figure out enough of the 1-wire serial protocol to be able to do
this.. Does anyone have a KXPA500, a Bus Pirate, and an hour or so?

73, Thomas M0TRN

On 4 September 2012 14:12, Joe Subich, W4TV <lists at subich.com> wrote:

> I don't see how ... the K3 has only two (2) GPIO lines.  One is FSK
> the other is the already overloaded pin 7 (transverter control/TX
> Inhibit).
>
> 73,
>
>     ... Joe, W4TV
>