Sure, QR code recognision can be done. The vision core of Livera is Hi3518E embedded system, it supports OpenCV Library. Basically, you could just write c/c++ code, invoke QR code recognition API(there are a lot of opensource openCV QR code recognition Libraries), Cross compile it to a program, and put it into the Linux system's onboard flash or SD card via ssh, serial port or save directly into SD card, then run the program). If you need the QR data within Arduino environment(arduino core/32u4). Could use our bridge server to transfer data through Serial communication.
BTW, We will consider to put into our Arduino Library, the library will contain functions like color tracking, line tracking, object and face detect, the library isn't done yet, will release before shipping, Happy hacks!