The original post: /r/3dprinting by /u/deusrex_ on 2024-12-29 03:03:22.

RFID for CFS is an Android App that allows you to create Creality K2 Plus and CFS compatible RFID tags for all your spools of filaments - so the RFID functionality is no longer limited to just Creality filament! Thank you testers for helping me get it to this point!

https://play.google.com/store/apps/details?id=com.lot38designs.cfsrfid

You need Mifare Classic 1k tags - something like this: https://www.amazon.com/BABIQT-Sticker-Classic-Self-Adhesive-Stickers/dp/B0BZRS35CT

Currently only Creality and Generic brands are available in the CFS and K2 Plus, so for now those are the only brands available in the app. We are working on a filament database that will allow you to select your filament brands and load the ones you use to Creality Print, the K2, the CFS, and this App.

For non-android users, I am working with the OpenSpool team to include Creality RFID Read and Write support into their project - so follow OpenSpool for updates on that. You will need to order a Wemos D1 Mini s3 and a PN532 RFID reader. https://github.com/spuder/openspool/

Some tips:

  • You want two tags per spool, one on either side. These tags should have all the same data.
  • Batch, Serial number, and Supplier should be randomized between spools, and the random button does that for you.
  • There are 3 color pickers:
    • The Creality one which should mostly match the color picker on the printer (let me know if any colors don’t exactly match).
    • A basic color picker (below the Creality one) which has better primary colors than the Creality one. This one will probably be updated again later.
    • The third color picker appears when you check Advanced mode and is a full color wheel.
  • If you want to match colors, it’s probably easiest to read a tag from another spool and then randomize the batch/serial/supplier.
  • When you finish a spool, you can reuse your tags - don’t throw them away!
  • It will only read unencrypted tags, not official ones from Creality that come on their spools.
  • If you want the CFS to automatically switch filaments when one runs out, you just need to make sure the color and type matches on the RFID tags on both spools.