Lf read From merlokk #216

xianglin1998 · 2024-06-13T07:47:04Z

Strengthen low-frequency related functions

github-actions · 2024-06-13T07:47:23Z

You are welcome to add an entry to the CHANGELOG.md as well

taichunmin · 2024-06-14T04:29:37Z

software/script/chameleon_enum.py

@@ -72,6 +72,7 @@ class Command(enum.IntEnum):

    EM410X_SCAN = 3000
    EM410X_WRITE_TO_T55XX = 3001
+    DATA_CMD_LF_READ = 3010


maybe rename to LF_READ?

taichunmin · 2024-06-14T04:31:53Z

software/script/chameleon_enum.py

@@ -116,6 +117,8 @@ class Status(enum.IntEnum):
    LF_TAG_OK = 0x40
    # Unable to search for a valid EM410X label
    EM410X_TAG_NO_FOUND = 0x41
+    # Unable to search for a valid LF tag
+    LF_TAG_NO_FOUND = 0x42


maybe rename EM410X_TAG_NO_FOUND to LF_TAG_NO_FOUND and reuse 0x41?

maybe rename EM410X_TAG_NO_FOUND to LF_TAG_NO_FOUND and reuse 0x41?

At present, this PR is in the testing phase, and all code formats and naming conventions will be corrected before merging.

augustozanellato · 2024-06-17T11:36:43Z

A notice should probably be added stating that this code is at least partly based on the Flipper lfrfid library

shayya · 2024-06-17T16:33:45Z

can we start working on HID26 protocol emulation. It's by far the most common LF protocol. I'm not as familiar with the chameleon ultra codebase. If you tell me what are the files that are need I'd be happy to contribute

xianglin1998 · 2024-07-08T04:17:37Z

A notice should probably be added stating that this code is at least partly based on the Flipper lfrfid library

I will confirm some copyright related issues with the author, which is indeed very important.

xianglin1998 · 2024-07-08T04:21:36Z

can we start working on HID26 protocol emulation. It's by far the most common LF protocol. I'm not as familiar with the chameleon ultra codebase. If you tell me what are the files that are need I'd be happy to contribute

Within the "firmware/application/src/rfid", you can see the 'nfctag' and 'reader' dir, if you are want to implement a tag, you can view the nfctag dir's file.

github-actions · 2024-07-24T10:23:35Z

Built artifacts for commit `8dab924`

Firmware

Client

merlokk · 2024-07-24T10:42:16Z

A notice should probably be added stating that this code is at least partly based on the Flipper lfrfid library

I will confirm some copyright related issues with the author, which is indeed very important.

yes, it GPL3. license will be added later.

yarreg · 2024-09-21T22:42:22Z

What is the status of this PR? We are waiting for a new code base to support more LF protocols. Thanks.

merlokk · 2024-09-22T09:35:39Z

im working on it. i think in several weeks I will publish it

yarreg · 2024-09-22T09:54:06Z

im working on it. i think in several weeks I will publish it

Thanks for your work!

Xample · 2024-10-25T18:36:41Z

Hello, here is my feedback:
I recently purchased a Chameleon Ultra which one I immediately updated with the latest FW but reading the LF never worked. I first thought the Chameleon to be faulty and therefore purchased another one supposed to be genuine. On delivery, it was loaded with the FW 1.0, I tried loading a LF card and the new Chameleon was able to detect it. I then tried to upgrade it to the v2.0.0 but then my Chameleon is not reading LF anymore. I saw many users experienced the same issue (which is the reason why I'm here). I therefore tried your firmware (based on the artefact) on at least one device but, it is still not reading any card. I therefore rebased your branch on master and rebuilt the firmware. Something like

git clone https://github.com/merlokk/ChameleonUltra.git
cd ChameleonUltra
git remote add upstream https://github.com/RfidResearchGroup/ChameleonUltra.git
git fetch upstream
git checkout lf_read
git rebase upstream/main
docker run --rm --platform=linux/amd64 -v "$(pwd)":/workdir -w /workdir ghcr.io/rfidresearchgroup/chameleonultra-fw-builder:pr-233 bash -c "./firmware/build.sh"

For the curious, the builds will be in ChameleonUltra/firmware/objects/bootloader
I then updated my 2 Chameleons (using MTools BLE using my iPhone), but I'm still unable to read any lf card.

I therefore think about downgrading the FW to 1.0 to start testing my Chameleons with a firmware from scratch. But having no XXXLink (based on the only artefact available for 1.0) I just don't know how to load or pack this ultra.hex to load it into my chameleon. I will open a ticket to ask for help.

To summarize: My issue has not been fixed (yet?) by this branch's code. I will continue digging on my side to see if my device is "corrupted" and if so, why.

whywilson · 2024-10-29T02:37:28Z

Hello, here is my feedback: I recently purchased a Chameleon Ultra which one I immediately updated with the latest FW but reading the LF never worked. I first thought the Chameleon to be faulty and therefore purchased another one supposed to be genuine. On delivery, it was loaded with the FW 1.0, I tried loading a LF card and the new Chameleon was able to detect it. I then tried to upgrade it to the v2.0.0 but then my Chameleon is not reading LF anymore. I saw many users experienced the same issue (which is the reason why I'm here). I therefore tried your firmware (based on the artefact) on at least one device but, it is still not reading any card. I therefore rebased your branch on master and rebuilt the firmware. Something like
git clone https://github.com/merlokk/ChameleonUltra.git
cd ChameleonUltra
git remote add upstream https://github.com/RfidResearchGroup/ChameleonUltra.git
git fetch upstream
git checkout lf_read
git rebase upstream/main
docker run --rm --platform=linux/amd64 -v "$(pwd)":/workdir -w /workdir ghcr.io/rfidresearchgroup/chameleonultra-fw-builder:pr-233 bash -c "./firmware/build.sh"
For the curious, the builds will be in ChameleonUltra/firmware/objects/bootloader I then updated my 2 Chameleons (using MTools BLE using my iPhone), but I'm still unable to read any lf card.

I therefore think about downgrading the FW to 1.0 to start testing my Chameleons with a firmware from scratch. But having no XXXLink (based on the only artefact available for 1.0) I just don't know how to load or pack this ultra.hex to load it into my chameleon. I will open a ticket to ask for help.

To summarize: My issue has not been fixed (yet?) by this branch's code. I will continue digging on my side to see if my device is "corrupted" and if so, why.

If you have the issues below, it can be the antenna issues.
FW 1.0 return all 00 when run lf read no matter if there is a EM4100 tag there or not. FW 2.0 doesn't return anyting.

merlokk added 20 commits March 31, 2024 19:51

add command

dc2854a

lf read command sketch

086cb5b

add lf read sketch

504a885

lf read command sketch

7b57a54

add debug to lf_read

d77551e

rename and optimize irq

a3c0bb4

fix buffer

9819d6c

small fix in capture

ea36aaa

em4100 import from flipper

8267762

add spstring

759c8d4

fix spstring

d26f92a

fix compilation errors

0be2c25

protocol search sketch

2cafab7

add decoder to makefile

cbadac7

move protocol.h to the protocols folder

8bef0fa

protocol loop

feb384f

add protocol decoder

0050e79

add bitarray

7e1842a

bitarray clear

77590e7

manchester decoder sketch

892edaa

taichunmin reviewed Jun 14, 2024

View reviewed changes

merlokk added 4 commits July 24, 2024 12:58

add bit_buffer

1c3181e

add bit_buffer logger

a2c9077

fix bit_array

93bdccf

fix manchester decoder

a7d08eb

add em4100 protocol decoder

32f6ab8

merlokk added 3 commits July 24, 2024 13:56

Merge branch 'RfidResearchGroup:main' into lf_read

28107fc

fix conditions

c206e8c

add em decode error check

8dab924

Provide feedback

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Lf read From merlokk #216

Lf read From merlokk #216

xianglin1998 commented Jun 13, 2024

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whywilson commented Oct 29, 2024

Lf read From merlokk #216

Are you sure you want to change the base?

Lf read From merlokk #216

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xianglin1998 commented Jun 13, 2024

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github-actions bot commented Jul 24, 2024 • edited Loading

Built artifacts for commit 8dab924

Firmware

Client

merlokk commented Jul 24, 2024

yarreg commented Sep 21, 2024

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Built artifacts for commit `8dab924`

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Xample commented Oct 25, 2024 •

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