Freestyle Libre 1

To use your Libre as a CGM that is getting new BG values every 5 minutes you first need to buy a NFC to Bluetooth adapter like:

Additionally it is possible to use a specific watch, the Sony Smartwatch 3 which has an NFC chip which can be enabled and can be used as a NFC collector. However the custom NFC to Bluetooth adapters listed above offer a less complex solution and would be used by the majority of those wanting to use their Libre 1 as a CGM.

As it currently stands, if using Libre 1 as BG source you cannot activate ‘Enable SMB always’ and ‘Enable SMB after carbs’ within the SMB algorithm. The BG values of Libre 1 are not smooth enough to use it safely. See Smoothing blood glucose data for more details.

Libre met xDrip+

  • If not already set up then download xDrip+ and follow instructions on LimiTTEer or Libre Alarm.

  • In xDrip+ go to Settings > Interapp Compatibility > Broadcast Data Locally and select ON.

  • In xDrip+ go to Settings > Interapp Compatibility > Accept Treatments and select OFF.

  • If you want to be able to use AndroidAPS to calibrate then in xDrip+ go to Settings > Interapp Compatibility > Accept Calibrations and select ON. You may also want to review the options in Settings > Less Common Settings > Advanced Calibration Settings.

  • Select xDrip+ in ConfigBuilder (setting in AndroidAPS).

  • For settings in xDrip+ with screenshots see xDrip+ settings page. There is a part for basic xDrip+ settings and for Freestyle Libre xDrip+ settings.

  • If AAPS does not receive BG values when phone is in airplane mode, use ‘Identify receiver’ as describe on xDrip+ settings page.

Libre met Glimp

  • You will need Glimp version 4.15.57 or newer. Older versions are not supported.

  • If not already set up then download Glimp and follow instructions on Nightscout.

  • Select Glimp in ConfigBuilder (setting in AndroidAPS).