Programming Arduino proc in Hilltopper-20


Hi, all.

While I try to whittle away at the loud "pop" each time I send a CW character and get more RX audio out of the volume knob, I'm also reading up on a mod for different tuning steps & even an LCD screen (for learning purposes only, really).  How does one actually connect to the processor to download/upload sketches to it? 

Does one connect to one of the un-pinned ports in the radio such as J6 or does the proc have to come out and sit on a burner type board?   I know just enough about Arduino programming to really make a mess but we have to start somewhere. 

Tnx in advance,


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