Seems like overkill? An Arduino should have all the processing power needed for a KISS TNC.
@Sabex I'm sure I could do it that way, but I've only ever had pain with vox, etc., etc.
I've already got one TNC-Pi running an APRS node and it's been stable and reliable for months.
I bought two of these originally anyway, with the intent of being able to talk to myself!
Yeah I started out using VOX but then used one of the raspi lines to drive a 2N2222 to switch the PTT. I always fancied using a relay for the click-clunk but never got around to it.
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