01 · Sender

Transmit a file

Load any binary file, choose a spatial layout (grid) and temporal cadence (frame interval), and broadcast it as a looping QR stream. Point the receiver's camera at the canvas.

Configuration

Payload file

Grid size — spatial multiplexing (N × N)

Frame interval — temporal multiplexing

Chunk size (raw bytes / QR)

QR error-correction level

Loop cyclically (reliability via redundancy)

Load a file to preview the QR stream

Codes / frame

—

Total chunks

—

Frames / cycle

—

Est. cycle time

— s

Frames shown

Cycles

idleraw goodput ≈ — kbps

A META frame carrying file name, size and SHA-256 is sent once per cycle; the receiver needs it plus every data chunk to reconstruct. Denser grids raise raw goodput but demand higher capture resolution and stability.