LibreView_to_AppleHealth_converter

Converts a CSV export of blood sugar levels from LibreView into a format that can be imported into the Apple Health app with Health CSV Importer.

Recommended general settings / assumptions

1. In the LibreView account settings preferences set the following:
   • Blood Glucose Units to mmol/L
     • You could use mg/dL for import and export, by setting the relevant header name to Blood Glucose (mg/dL) in the conversion script
   • Date Format to Day-Month-Year
   • Time Format to 24-hour
   • Language for UI to English (this affects the decimal point of the exported CSV)
2. The CSV file is expected to have been exported today (thus have today's date within its name, in DD-MM-YYYY format).

Specifics when running on iOS

1. INPUT_DIR: The CSV to convert is expected to be in the iCloud drive, within the Pythonista 3 folder.
2. You need to set LIBRE_VIEW_USER to your LibreView name within the conversion script. It's usually of the form FirstnameLastname.
   • Or make sure your LibreView name expands to mobile (by setting First Name to mob and Last Name to ile for example).
3. OUTPUT_DIR: This will also be the Pythonista 3 folder within your iCloud drive by default (it'd be a bit of a PITA to use local folders).

Specifics when running on macOS

1. INPUT_DIR: The CSV to convert is expected to in the Downloads folder in your home directory.
2. OUTPUT_DIR: This will be the Pythonista 3 folder within your iCloud drive by default. Set to something else if you like.

Then export, convert and import your data

1. Export your blood sugar levels from LibreView, by clicking Export Patient's Glucose Data in the bottom right of your measurements, to the INPUT_DIR as per above.
2. Run the conversion script convert_LV_export.py on a device of your choice.
   • You could use Pythonista 3 to run the conversion script on your iPhone.
   • To run it on a Mac, cd to the script's directory and run it with ./convert_LV_export
     • You may need to install python3, for example with Homebrew.
3. Use Health CSV Importer on your iPhone to import the converted CSV (named YYYY-MM-DD_blood_glucose.csv in the OUTPUT_DIR of your choice) into the Apple Health app.

Limitations

• The conversion script does not remember the last exported data point, and will always convert the full set.
  • The importer will remind you to delete previously imported data before importing a new full set, as you'd get duplicate data in Apple Health otherwise.