These are simulations. Before a full run, print one card, laminate it, and scan it with two different phones.

Sample code. Add a username to make yours.

Code 37.8 mmModules 1.15 mm

Pinproof

Username

Show @username on the card

Template

Layout

Print-safe mode

Pure black on white, square modules, High error correction. The icon stays, at a safe size.

Quiet zone

4 modules, 4.6 mm

The blank margin phones need to find the code. More margin makes the modules smaller.

Platform icon in the centre

Icon size

20% of the code, covers 6% of data

Error correction

Stays on High while the icon is on.

Rounded modules

Softer look with slightly less scan margin.

Modules

#000000

Background

#ffffff

Corners

#000000

Add a username in step 1 to download.