RFID identification

Creality CFS: encode on the server, then write and verify in the browser (memory test or OF1 Web Serial / USB). OpenPrintTag is a separate NFC format with NDEF/CBOR encode and Web NFC write path where supported. QR and search stay equal options.

Browser write + verify

Connect reader only after you click a button (permission prompt). ACR122U / PC/SC remains optional helper.

Web Serial not available — memory PoC still works.

OpenPrintTag Web NFC

Encode an OpenPrintTag NDEF/CBOR payload for a variant and write it on supported Android Chrome NFC devices. This is separate from Creality CFS.

Variant UUID

Web NFC is not available in this browser.