1. Get the Diabetes Forum App for your phone - available on iOS and Android.
    Dismiss Notice
  2. Guest, we'd love to know what you think about the forum! Take the Diabetes Forum Survey 2020 »
    Dismiss Notice
  3. Diabetes Forum should not be used in an emergency and does not replace your healthcare professional relationship. Posts can be seen by the public.
    Dismiss Notice
  4. Guest, stay home, stay safe, save the NHS. Stay up to date with information about keeping yourself and people around you safe here and GOV.UK: Coronavirus (COVID-19). Think you have symptoms? NHS 111 service is available here.
    Dismiss Notice
Dismiss Notice
Find support, ask questions and share your experiences. Join the community »

xDrip questions

Discussion in 'Blood Glucose Monitoring' started by tim2000s, Aug 29, 2015.

  1. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    Having had a few duff Libre sensors recently, I'm looking at the options relating to Dexcom. I already have the android phone so I'm considering xDrip as an alternative to paying a large sum for the receiver.

    I can purchase transmitter and sensors separately and legitimately, so I would like to know whether xDrip can handle calibration and sensor restarts without the receiver. Thanks for any help!
     
  2. zjed

    zjed Type 1 · Well-Known Member

    Messages:
    110
    Likes Received:
    153
    Trophy Points:
    83
    I'm running xDrip without a Dexcom receiver, there is no need for a Dexcom receiver.
    xDrip has no concept of a '7 day sensor'. You start it, then use it till you remove it, my last/first sensor lasted 23 days. There is a sensor stop/stop option but it advises not to use them unless you actually remove the sensor.
    xDrip calibration is pretty much the same as Dexcom, double calibration at startup, then 12 hourly. xDrip also has an option to turn off calibration alerts.

    Couple of things to be aware of :-
    - xDrip shows you raw data, whereas Dexcom 'massages' the data to give you a smoother/slower trend on sudden movements. I prefer the raw data.
    - currently xDrip (wixel bridge) is missing a couple of readings (around 10ish a day, mainly overnight), xDrip and wixel devs are working on it.
    - its a product in constant development, but it is also constantly improving. I'm now on my 3rd release of xDrip app and have had 2 updates to the wixel bridge.

    I've been meaning to write a review and thoughts on this setup, I will do so shortly.
    The only downside I can see for running without a Dexcom receiver is that I may have difficulty dealing with Dexcom if I try to get a faulty sensor replaced.

    **Update, xDrip doesn't show raw data, it is slightly smoothed, hopefully they will add an option to show raw data
     
    • Like Like x 2
    #2 zjed, Aug 30, 2015 at 1:44 AM
    Last edited by a moderator: Sep 23, 2015
  3. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
  4. Chas C

    Chas C Type 1 · Well-Known Member

    Messages:
    821
    Likes Received:
    445
    Trophy Points:
    123
    There have been a few posts on the Dexcom / Nightscout related FB sites where UK residents have been unable to purchase items separately (other than Animas Vibe users), if they were not registered as "full" users.

    Seems that if they have no record of you purchasing a full pack on day one (receiver and sensors) then in the UK its does not appear they will sell them to you separately.
     
  5. DunePlodder

    DunePlodder Type 1 · Well-Known Member

    Messages:
    823
    Likes Received:
    613
    Trophy Points:
    153
    Go for it Tim! You won't regret it.
     
  6. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    However there are places outside the UK where you can purchase transmitter and sensors (and they are within the EU).
     
    • Like Like x 2
  7. Chas C

    Chas C Type 1 · Well-Known Member

    Messages:
    821
    Likes Received:
    445
    Trophy Points:
    123
    Sorry Tim, misread your first post - you wrote "I can purchase...separately" I sadly read "Can I purchase.....separately", teach me to read more carefully.
     
  8. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    Well I've purchased all my pieces for an xDrip, and I have a dead transmitter to try and resuscitate. Should this go to plan, I'll purchase a sensor (the most expensive part of the equation) and see how long I can make it last for! A project for next week... :woot:
     
    #8 tim2000s, Sep 15, 2015 at 11:09 AM
    Last edited by a moderator: Sep 15, 2015
  9. DunePlodder

    DunePlodder Type 1 · Well-Known Member

    Messages:
    823
    Likes Received:
    613
    Trophy Points:
    153
    Good luck Tim, it's fiddly but doable. Do you have a "helping hand" for the soldering? Hopefully you are better at soldering than me! I've built 2 now so if I can be of help let me know.
    What do you mean by resuscitate a dead sensor?
     
  10. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    Sorry, mistyped - should be transmitter.

    I've built many a circuit in the past, so it doesn't look too tricky.
     
  11. DunePlodder

    DunePlodder Type 1 · Well-Known Member

    Messages:
    823
    Likes Received:
    613
    Trophy Points:
    153
    For someone who knows what they are doing it is simple, just that I didn't.. getting better though!
     
  12. zjed

    zjed Type 1 · Well-Known Member

    Messages:
    110
    Likes Received:
    153
    Trophy Points:
    83
    @tim2000s I presume you have found the xBridge2 wiring and wixel update here.
    It plays nicely with the latest beta xDrip app and give you a bridge battery status.
    Hows your soldering skills going?
     
  13. zjed

    zjed Type 1 · Well-Known Member

    Messages:
    110
    Likes Received:
    153
    Trophy Points:
    83
    Someone in the UK is about to sell xDrip kits http://xdripkit.co.uk/
    Wiring is slightly different to xBridge2, has slightly different resistors which could affect battery status and must be using old wixel firmware as you have add the Dexcom Id to the firmware rather than providing it in the xDrip app.
    Hopefully they update it to match what the main xDrip devs are doing.
     
  14. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    I'm working from the xdrip wiki so should be okay. Unfortunately my wire didn't turn up so I have had to reorder. Shouldn't be too long now though!
     
  15. ElyDave

    ElyDave Type 1 · Well-Known Member

    Messages:
    2,086
    Likes Received:
    2,018
    Trophy Points:
    178
    Just seen this, so get ready for some probably quite stoopid questions.

    1) this is an Android-linked thing, so do I need to download an app? - I have an android tablet
    2) does it only read out nto the Android device, or is there a live reading?
    3) does it store data? Just thinking about soem places I go where they get a bit twitchy about electrical devices and I can't see them letting me carry a home-made device on site.
    4) what's the average sensor price?

    Thanks
     
  16. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    @ElyDave

    1) this is an Android-linked thing, so do I need to download an app? - I have an android tablet
    It is Android linked. The app aspect has to be sideloaded - it's not in the Play store.

    2) does it only read out nto the Android device, or is there a live reading?
    The Android device replaces the Dexcom receiver, so you see the data on the device. You can have this feed a smartwatch and Nightscout.

    3) does it store data? Just thinking about soem places I go where they get a bit twitchy about electrical devices and I can't see them letting me carry a home-made device on site.
    No, it is purely a forwarding device. If you can't take a home made device with you you will need the Dexcom receiver.

    4) what's the average sensor price?
    Pretty much the same as when buying from Dexcom. Around £55 per sensor.
     
  17. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
  18. DunePlodder

    DunePlodder Type 1 · Well-Known Member

    Messages:
    823
    Likes Received:
    613
    Trophy Points:
    153
    I added this:
    http://www.amazon.co.uk/dp/B00KRZTH1Q/ref=pe_385721_51767431_TE_dp_1
    to my last xdrip box. It works well, if somewhat slower than a direct connection. It gets a bit warm too. The main thing is you don't need to stress any wiring when plugging in & out.

    I'm now testing the xBridge2 version & I read somewhere that wireless charging can interfere with reception/transmission.
     
  19. zjed

    zjed Type 1 · Well-Known Member

    Messages:
    110
    Likes Received:
    153
    Trophy Points:
    83
    I tried a QI charger with my phone a couple of year ago, found it slow, hot and had to get my phone in exactly the right place for it to charge properly. I've got my bridge in a tic tac box with the 3d printed lid, so it's easy to plug in the charging cable each night.
    I really like the idea of mounting the 2 boards to the back of my phone and running them from the phone's battery, not easy on a nexus 4 which has a glass back. I've seen some people have put the boards inside their phone and re moulded the back cover.
    It would be nice to carry and charge 1 device.
     
    • Like Like x 2
  20. tim2000s

    tim2000s Type 1 · Expert
    Retired Moderator

    Messages:
    8,914
    Likes Received:
    11,775
    Trophy Points:
    198
    Well this is the soldered together bits. They appear to be doing what they should. I'll be flashing the wixel ROM tonight I hope...

    [​IMG]
     
    • Like Like x 2
  • Meet the Community

    Find support, connect with others, ask questions and share your experiences with people with diabetes, their carers and family.

    Did you know: 7 out of 10 people improve their understanding of diabetes within 6 months of being a Diabetes Forum member. Get the Diabetes Forum App and stay connected on iOS and Android

    Grab the app!
  • Tweet with us

  • Like us on Facebook