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  • May 14 00:11
  • May 14 00:11
  • May 14 00:06

    pazaan on master

    Update README.md (compare)

  • May 14 00:06

    pazaan on master

    Update README.md (compare)

  • May 12 22:02
    pradoalejandro opened #307
  • Mar 06 19:31
    DrCR77 commented #301
  • Jan 31 17:29
    rizso commented #284
  • Jan 31 15:15
    Pogman commented #284
  • Jan 30 09:29
    rizso commented #284
  • Jan 14 23:36
    pazaan closed #20
  • Dec 30 2021 07:59
    taavili closed #306
  • Dec 30 2021 07:58
    taavili opened #306
  • Dec 19 2021 21:52
    pazaan commented #7
  • Dec 11 2021 21:56
    MeisterQ commented #7
  • Nov 18 2021 01:18
    pazaan commented on 1471e6f
  • Nov 17 2021 01:20
    IsabelaZago commented on 1471e6f
  • Nov 17 2021 01:15
    IsabelaZago commented on 1471e6f
  • Nov 17 2021 01:14
    IsabelaZago commented on 1471e6f
  • Oct 14 2021 19:06
    Sven-needs-help commented #269
  • Oct 12 2021 12:46

    pazaan on master

    Adding support for parsing squa… rename duration Update main.yml and 2 more (compare)

oldsterIL
@oldsterIL
and change it to select "days" ago
ga-zelle
@ga-zelle
I revitalized my old pump and got it connected to the CNL. The pump still shows 2 longer periods of SG graphs, so the data should still be available. I'll give it a try over the weekend. Thanks for the help.
oldsterIL
@oldsterIL
@ga-zelle Happy to help :)
roeescdev
@roeescdev
I have just discovered this amazing app and group and would like to know whether the 600SeriesAndroidUploader app can work with Contour plus link 2.4 as well
oldsterIL
@oldsterIL
@roeescdev yes.
oldsterIL
@oldsterIL
I want to disassemble the CNL, remove the display, USB connector and buttons. If I do this, then in the future I will not be able to pair the pump and the CNL if it is necessary. Therefore, I want to know who the realties tried to pair the CNL and the pump through the software?
Pogman
@Pogman
The CNL can only be paired using the CNL itself via it's menu. Pre-pairing the CNL and pump before any hacks is all you need to do.
If you need to pair later the screen can be reattached, it just clips into it's tiny socket. Buttons can be triggered by shorting their connectors on the pcb or just leave those attached as they are tiny.
oldsterIL
@oldsterIL
Thanks for the answer, very sorry :(
I wonder how the CareLink USB MMT-7306 is pair to the pump?
psit
@psit
At least here in Austria, the MMT-7306 is no longer available.
psit
@psit
I guess it is somehow paired via the driver, but I'm sorry I could not find any manuals on how this is done. It is also not in the list of supported devices for carelink uploader: https://carelink.minimed.eu/crs/ocl/14.02/media/en/EMEA/faq.pdf
ga-zelle
@ga-zelle
RIght at the beginning I stumble because I cannot install some libraries like crc16: not found. Where do these come from?
Djuric
@dircsem
@oldsterIL As far as I know to CNL pair it should be through usb, so if you wan't to dissassemble it, you need to let usb active somehow. I know a guy who is doing it, it has attached a pi0 board to cnl, and he is using it to send bolus and to get bg data from cnl.
oldsterIL
@oldsterIL
@psit I can buy this device in Russia, but it costs much more than CNL :( I will try to install CareLink and I'll try to look at its code. Perhaps I can find the code I am interested in there :)
@ga-zelle If we are talking about my driver, then you can see how to install the necessary libraries to run here.
@dirceusemighini it's a good idea to emulate button presses. But I would like to be able to do this not through emulation.
Djuric
@dircsem
What do you wan't to do @oldsterIL ? My main desire was that someone could break it's cryptography, as Jesous has done, but he didn't share his code.
oldsterIL
@oldsterIL
@dirceusemighini I want to make an analogue of the "600 Series Uploader" but on PRI Zero + add some feature. As for breaking cryptography, I tend to believe that this is not possible. At least, I do not know how to do this and there is an opinion that it is not possible to hack Renesas chips.
I'm not comfortable walking with my phone and CNL.
Djuric
@dircsem
I see, I heard that this guy https://twitter.com/JBerian has broken this cryptography (He has tweeted about it sometime ago), but he has been hired by Medtronic. I also heard that it wasn't possible, and I also doesn't know how to do it. I'm trying to get this guy repo to show you how he has done, I remember he talking that the circuit can be inserted into a TicTac box (the big one), it's not that bad. PRI zero is the raspberry Pi 0?
oldsterIL
@oldsterIL
@dirceusemighini I also read his twitter.
PRI zero (misprintm, RPI zero) = raspberry Pi 0
I also want to reduce the size of the "RPI zero + CNL + 3G modem + battery" therefore, I want to disassemble the CNL.
Pogman
@Pogman
The MMT-7306 does not pair with the pump - the pump will ask the user to allow a connection every time the device connects making it not practical for 5 min reading cycles.
oldsterIL
@oldsterIL
@Pogman thank you, you saved me from an inappropriate purchase :)
Pogman
@Pogman
cnl-mod-final-notape.jpg
I modded the CNL and built a custom usb connector and just stuck the thing to the back of my phone. It's barely there in use and very sturdy.
oldsterIL
@oldsterIL
I saw this photo, good job! I want to do the same, only with RPI Zero.
psit
@psit
Funny thing - I had a similar thought like @oldsterIL: using a pi and a battery and a display and the CNL ... then I thought - ok: use a phone and you have a display, a computer and a battery. ;) Of course for the fun, engineering it yourself is great. Unfortunately I just don't have any time and I need a working device for my 2y T1D boy.
oldsterIL
@oldsterIL
I'm wondering, how do you update the firmware in the pump or how the firmware is uploaded at the factory? This can be done with MMT-7306?
Has anyone tried to send a bolus through MMT-7306?
Djuric
@dircsem
https://github.com/diabotic/haps_640g <- hope this help @oldsterIL this guy has done what you want to do, or something very similar to it
oldsterIL
@oldsterIL
@dirceusemighini thx, I know about this
user-hash
@user-hash

https://github.com/diabotic/haps_640g <- hope this help @oldsterIL this guy has done what you want to do, or something very similar to it

Hi, I'm very interested in this project, but there is not a lot of information in the readme. Is there maybe more information? What are the other requirements? I just got Guardian 3 sensor beside 640G I use for 6 months. I can figure things out, but more I need more information.. Thanks a lot! PS. I see its running on RPI and is simulating a button presses with some hardware components.

Djuric
@dircsem
Hi @user-hash, @horstao is the project owner, I have some informations about it you can post the doubts here and I can try to answer. The button press was emulated by soldering some wires to the cnl buttons, this is a very delicated operation we could find someone here that was able to do it, I'll try to find some pictures of it. The 640 handles the downs, the idea of this code is to handle the ups by sending bolus (by virtuallying pressing the buttons) to the pump.
user-hash
@user-hash
@dirceusemighini @horstao Many thanks, I'm sure I can take care of the soldering work and I will try to source the electronic components at my local shop tomorrow. If the soldering is too much for my skills I know a retired person who can help me with all the hardware stuff. Has anyone designed a PCB for this project yet? The schematic is probably still like this? https://cloud.githubusercontent.com/assets/16906631/21573850/7e78f8d6-cee1-11e6-8e2d-c609f038866b.png If you can find more pictures it would be great!
user-hash
@user-hash
Installing the project on PI seems straightforward too: download the project including the correct lib for your PI, then adjusting the setting and the last thing is to run the python file. Am I missing something else?
Djuric
@dircsem
Becareful on soldering, because you can burn the contacts and miss the cnl.
user-hash
@user-hash
Great advice, I will do my research and then make the final work with the retired electrical engineer. It's a medical device after all so the work must be perfect. If you can share more information I would be grateful!
oldsterIL
@oldsterIL
@user-hash If you use RPI-Zero, I think you need to add one more mosfet to break the power supply to usb (+ 5v). Otherwise, you will not be able to send a bolus through the CNL.
user-hash
@user-hash
For testing use, I thought of using spare 3B or 4 which I already have at home, for the final version I would probably go with pi0. It's ok if I need another mosfet, but I would really need the schematics for my friend which would help me with hardware stuff.
Alejandro Cavallo
@alecavallo
Hello everyone. I just came across with this project trying to decide the carelink 2.4 usb stick. Does it work for that device too or this project is contour specific?
Djuric
@dircsem
Hello @alecavallo is this carelink 2.4 is the one that came with the pump 640, if so I think that it's the one that works with this project.
Alejandro Cavallo
@alecavallo
@dirceusemighini it comes with the 670G. It's REF is mmt-7306
Djuric
@dircsem
I'm not an 6xx expert/user, if you are talking about @horstao project, it's based on 640. I'm not sure if the cnl has changed from 640 to 670
Pawel K
@paulokow
Hi, is anyone experimenting with data download from 770 or 780 pump? This is having bluetooth interface as far as I can tell.
Djuric
@dircsem

Hi, is anyone experimenting with data download from 770 or 780 pump? This is having bluetooth interface as far as I can tell.

the easiest way of doing this, in my opinion, would be to decompile their app and see how they handle this connection

Lennart Goedhart
@pazaan
Agreed.
Lennart Goedhart
@pazaan
That’s how I did it for 600-series.
Eric
@ecc1
Do the latest Medtronic CGM sensors also use Bluetooth? I wonder whether an xDrip-like app could proxy Dexcom sensor values to one of those pumps
Djuric
@dircsem
That would be very interesting.

That’s how I did it for 600-series.

Is there any command placed to 600 series from their app?

Lennart Goedhart
@pazaan
The commands are only for bulk downloading history data.
sebastiaanvduijn
@sebastiaanvduijn
I just received an email from Medtronic with a warning. The email says external 'hackers' are able to control the 640G in combination with the CNL, now they strongly advice to disable the remote bolus capability. I would say this to be pretty good news, does anyone have more information? has the encryption key finally been found?