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:

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

If using xDrip+

  • If not already set up then download xDrip+ and follow instructions on LimiTTEer, Libre Alarm or BlueReader (Hardware).
  • 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.

If using 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).