Idea of an Android app to display spool info

[thomasfla]

Hi, thanks for the nice reverse engineering,

We have a lot of bambu spools and we refill them ourselves. It happened that we forget to glue the new label on.

I did a simple test/POC with my android phone, reading a UID with MIFARE Classic Tool app, then running the key generator python code provided here on my PC, writing the keys to a key file back on my phone, and now I can read and decode a tag with it:

It would be cool to create an android app to automate this and parse the spool ! WDYT?
I might give it a try if it makes sense…

[thomasfla]

I did a POC :
https://github.com/thomasfla/3DSpoolScanner

Can try it here:
https://github.com/thomasfla/3DSpoolScanner/releases/download/v0.1/3dSpoolScanner.apk

[mrambossek]

this looks really cool. i have zero experience with android development - is it feasable to run the key generation code right inside the app?

[thomasfla]

Hi, yes, this is what I did.
I have also zero experience with android, but I've spent an afternoon with ChatGPT...
The app scan the UID, derives the key and read block 4 and 5 right now.

[Amerzel]

I did a POC : https://github.com/thomasfla/3DSpoolScanner

Can try it here: https://github.com/thomasfla/3DSpoolScanner/releases/download/v0.1/3dSpoolScanner.apk

This is awesome, worked great. Nice first steps!

[cherryduck]

Bit of duplication, I've also created an android application which does the same but also dumps the whole tag, and exports the dump and the key files. Feel free to try it out!

https://github.com/cherryduck/BambuTagScanner

[MrB-PrintingFun]

Hello, based on cheryduck's excellent work, I've made a proxy in python to fill SpoolMan database
RFID scan through phone -> API call to my proxy -> complete decoding -> colors and manufacturer infos from spoolman DB -> spoolman calls to add spool.
If an actual weight spool is given, everything is computed to give spoolman the right information

If interested in, I'll publish it soon

Maybe some work in common to make a cool app?