ptc1 had a .txt to qr converter online, but ptc3 doesnt have camera access. that audio transfer might work to get it off a 3ds but not back on since the 3ds headphone jack is only headphones and mic interaction seems to only be able to pick up audio spikes but someone might get it to eventually.
if you need a physical keyboard just wait for the wiiu smilebasic thats on its way
1そうだね プレイ済み