Seems like overkill? An Arduino should have all the processing power needed for a KISS TNC.
@Sabex this is going to be packet radio with dialup.
It's hopefully going to be a shell people can log into too, so yes, still overkill.
Ah I see, it's a bit more than just a TNC then! I used a raspi running sound modem quite successfully for that purpose. All I needed was one of those cheapass USB sound cards and a Wouxun handheld
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!