Initialize NFC card

In this guide you can initialize any NFC card for use with this app. This means you'll be able to set its balance, PIN and other settings, making it simulate how a real card works.

Set a PIN to enforce an exact match for larger payments. Leave empty to accept any 4+ digit PIN above the threshold.
Payments above this amount require entering a PIN. If no card PIN is set, any 4+ digit PIN is accepted.
Starting fake balance for the card.