Steve, I've run that idea by a few Arduino guys including AD7C himself. They
say yes, you can use one of the analog pins and you can "map" the 0-5VDC to
say, an offset of +/- 1000 Hz but they say it's not smooth enough to use as
RIT. I would like to try but I don't know enough about writing the code to add
that function.
Regarding your PIC controller, I have a PIC ordered so I can copy your circuit.
I'd rather use an AVR since I have some and also a programmer. Is there any way
you could port your PIC code to an AVR, or would you be willing to release your
source code so I can try to do it?
Curt K8AI
>Curt,
>
>Can you not simply connect the RIT line to one of the Arduino analogue
>inputs and use that to generate a proportional frequency offset? That's
>what I did in my PIC controller.
>
>Steve G3TXQ
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