[Elecraft] KAT500 serial cable

[F4GXG]

Hello,
I have built the first prototype of my interface and everything works very
well!
It opens to me a new dimension in the use of the KAT500, via serial commands
and Arduino microcontroler. 

What I have done is :

Arduino TTL serial TX/RX connected to a classic MAX232 IC (TTL pins)
MAX 232 TX/RX RS232 pins side connected to the stereo Jack for KAT500 serial
connector.

Jack 3.5 connector :
 - tip : TX coming from the Arduino
 - ring : RX coming from the Arduino
 - ground :.....ground (HI)

And with 15 software lines in the Arduino, it's OK.
Remains to do the final hardware in a small box, and finalization of the
software.

So : Thank you very much for your help and advices!

73's QRO from Jean F4GXG




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