Feature Request Custom data field / CGM Data

Not planned

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schmadde

• April 01, 2022 22:03

I am not sure what is the official way to enter a feature request but I would really like to ask for one. It has been asked at https://support.hammerhead.io/hc/en-us/community/posts/4414700476315-Side-Load-Blood-Glucose-apps- already but maybe it was overseen.

Garmin has the connect IQ SDK which is very nice, maybe too much for hammerhead to do, but I would really like to have the possibility to have a custom data field that can display data scraped from some URL or a different app. 

The actual requirement for me and fellow diabetics would be to display the Blood glucose values on the unit like it can be done via the xdrip+/spike data field on garmin via connect IQ. 

I managed to side load xdrip+ on the karoo so the values are already available on the karoo unit and could be extracted by connecting to an http url. No need for Hammerhead to get involved in FDA approval or some such as long as you just offer a possibility to extract data from a web url (of course, incorporating our own code would be even better, but probably too difficult to be worth the hassle). 

Is there any chance? Not sure what other custom data fields would be interesting (runtime of bike lights maybe?) but the CGM data would be good for all diabetics and I also know from athletes that have no illness of this type who want to track their blood glucose with Dexcom sensors or similar hardware so they get warned before they get hypoglycaemia

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  Brennan Carley

  • May 06, 2026 14:38

  @Moojuicenooats please email me (support@glucoroo.com) or use the "contact" form on my web site (https://glucoroo.com/contact/) with details, and I will make sure you have the latest beta release and happy to help troubleshoot any problems. Also I would love to hear any feedback or suggestions you have.  Happy riding!

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  Simon Pickering

  • May 06, 2026 19:23

  @Brennan Carley - I assume this pulls data down from a website, which means an internet connection is required.

  Come on Hammerhead, give us a method to transfer data from a companion phone accessible URL (e.g. localhost) via an SDK function (i.e. routed over Bluetooth.)

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  Brennan Carley

  • May 08, 2026 15:12

  @Simon Pickering this actually supports

  • the Dexcom "Share" API, the Freestyle LibreLink API, the Nightscout API ...all of which are web servers accessed over the internet
  • ALSO supports a local Nighscout API (xDrip or Juggluco, and in principal any other similar service). i.e. xDrip offers an "Open Web Service" option that allows local network access to your CGM data by opening the internal server to other network interfaces. GlucoRoo can use this as well. It requires you to either run a wifi hotspot on your phone (easiest, but uses more battery) or set up a bluetooth "personal area network" which is technically trickier, but works and uses less battery. 

  Contact me if you want to try it out.

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