Anything you send stays on this device until a camera reads it off the screen.
Denser symbols move more data per frame but need a steadier camera and a closer hold.
Computed before the first frame goes out, from the settings above.
The first pass sends each block once, uncoded. After that the sender keeps going forever, emitting fresh coded combinations — so a receiver can start late, or lose frames, and still finish without anyone restarting anything.
Shortcuts
Space pause or resume · F fullscreen · ↑ ↓ frame rate · Esc leave fullscreen