| br>You can get by with software serial, using D0 or D1 works fine.
there's a small example at github.com/eclectics/ardcore -- the e18_quneo patch. Im using midi out to control leds on the quneo.
I posted about that here https://www.muffwiggler.com/forum/viewtopic.php?t=130015
Haven't yet done anything more with it. br> br>