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Freestyle Libre

Postedstyczeń 2, 2025
Updatedmarzec 20, 2025
ByNightscout Pro

Connecting your Abbott Freestyle Libre Continuous Glucose Monitor (CGM) with Nightscout Pro allows you to remotely view, share, and analyze your glucose data. This guide will walk you through the process of setting up your Freestyle Libre device to upload data to your Nightscout Pro site.

Supported Freestyle Libre Devices

Nightscout Pro supports all current Freestyle Libre CGM systems: – Freestyle Libre 1 – Freestyle Libre 2 (EU and US versions) – Freestyle Libre 3

Connection Methods

The connection method varies depending on which Libre model you’re using:

Freestyle Libre 1

The Libre 1 does not have built-in Bluetooth capability, so you’ll need an additional transmitter device that attaches to the sensor.

Compatible Transmitters: – MiaoMiao – Bubble – Blucon – Droplet – Atom

Compatible Apps: – Android: xDrip+, Juggluco, Diabox, Tomato – iOS: xDrip4iOS, Spike, Diabox, Tomato

Setup with xDrip+ (Android):

  1. Install xDrip+:
    • Download the latest version of xDrip+ from GitHub
    • Allow installation from unknown sources if prompted
  2. Connect your transmitter:
    • Follow the transmitter manufacturer’s instructions to attach it to your Libre sensor
    • Turn on Bluetooth on your phone
  3. Configure xDrip+:
    • Open xDrip+
    • Go to Settings > Hardware Data Source
    • Select your transmitter type (MiaoMiao, Bubble, etc.)
    • Follow the on-screen instructions to pair with your transmitter
  4. Connect xDrip+ to Nightscout Pro:
    • In xDrip+, go to Settings > Cloud Upload > Nightscout Sync
    • Enable “Nightscout Sync”
    • Enter your Nightscout URL in the format: https://[email protected]/api/v1/
    • Replace YOUR-API-SECRET with your actual API secret
    • Enable “Use mobile data” if you want uploads when not on WiFi
  5. Verify the connection:
    • Wait for the next glucose reading
    • Check your Nightscout Pro site to confirm data is appearing
    • If no data appears, please check the Event Logs in xDrip+ and look for error messages

Setup with xDrip4iOS (iOS):

  1. Install xDrip4iOS:
    • Follow the installation instructions from the xDrip4iOS website
    • This typically requires TestFlight or building the app yourself
  2. Connect your transmitter:
    • Follow the transmitter manufacturer’s instructions to attach it to your Libre sensor
    • Turn on Bluetooth on your iPhone
  3. Configure xDrip4iOS:
    • Open xDrip4iOS
    • Go to Settings > CGM > Transmitter Type
    • Select your transmitter model
    • Follow the on-screen instructions to pair with your transmitter
  4. Connect xDrip4iOS to Nightscout Pro:
    • In xDrip4iOS, go to Settings > Services > Nightscout
    • Toggle “Nightscout” to ON
    • Enter your Nightscout URL: https://yoursite.region.nightscoutpro.com
    • Enter your API Secret
    • Enable “Upload Readings” and any other desired options
  5. Verify the connection:
    • Wait for the next glucose reading
    • Check your Nightscout Pro site to confirm data is appearing

Freestyle Libre 2 (EU Version)

The EU version of the Libre 2 can connect directly to many apps without an additional transmitter.

Direct Connection with xDrip+ (Android):

  1. Install xDrip+:
    • Download the latest version of xDrip+ from GitHub
  2. Configure xDrip+ for Libre 2:
    • Open xDrip+
    • Go to Settings > Hardware Data Source
    • Select “Libre 2 (patched App)”
    • Follow the on-screen instructions
  3. Connect xDrip+ to Nightscout Pro:
    • Follow the same Nightscout connection steps as described for Libre 1

Direct Connection with Juggluco (Android):

  1. Install Juggluco:
  2. Configure Juggluco:
    • Open Juggluco
    • Follow the app’s instructions to connect to your Libre 2 sensor
  3. Connect Juggluco to Nightscout Pro:
    • In Juggluco, go to Settings > Nightscout
    • Enter your Nightscout URL and API Secret
    • Enable uploading

Freestyle Libre 2 (US Version) and Libre 3

For the US version of Libre 2 and for Libre 3, you have two main options:

Option 1: Using Juggluco (Android)

  1. Install and configure Juggluco as described above for the EU version

Option 2: LibreLinkUp Bridge (Cloud-to-Cloud)

This method pulls data from LibreView servers and sends it to Nightscout:

  1. Set up the LibreLinkUp bridge:
    • Click on “Config Vars” in your Nightscout Pro account
    • Click on “Configure LibreLinkUp”
    • Enter your credentials for your LibreLinkUp account
    • Choose the correct region for your LibreLinkUp account
    • Click “Update Connection”
  2. Verify the connection:
    • Wait for the next glucose reading
    • Check your Nightscout Pro site to confirm data is appearing
    • If no data is shown, click on “View Logs” and look for any error messages.

Troubleshooting Freestyle Libre Connections

Transmitter Issues (Libre 1)

Transmitter not connecting: – Ensure the transmitter is properly attached to the sensor – Check that the transmitter is charged – Verify Bluetooth is enabled on your phone – Try moving your phone closer to the transmitter – Restart the app and/or your phone

Inconsistent readings: – Check transmitter battery level – Ensure the transmitter is securely attached to the sensor – Some interference may occur in areas with many Bluetooth devices

Direct Connection Issues (Libre 2 EU)

App not detecting sensor: – Make sure you’re using a compatible app version – Verify your phone supports the required Bluetooth features – Try scanning the sensor with NFC first, then establishing Bluetooth connection

Connection drops frequently: – Keep your phone within 20 feet of the sensor – Disable battery optimization for the app – Some phone cases can interfere with Bluetooth signal

LibreLinkUp Bridge Issues

No data appearing in Nightscout: – Verify your LibreView credentials are correct – Check that the bridge application is running – Ensure the bridge has internet connectivity – Confirm your Nightscout URL and API secret are correctly configured

Best Practices

  1. Choose the right setup for your needs:
    • Transmitter + app offers more flexibility but requires additional hardwareDirect connection (where available) is simpler but may have limitations
    • LibreView bridge requires technical setup but works with official apps
  2. Battery considerations:
    • Transmitters need regular chargingDirect connection methods may use more phone battery
    • Keep your transmitter charged to avoid data gaps
  3. Sensor placement:
    • Follow Abbott’s recommendations for sensor placement
    • If using a transmitter, ensure it can be securely attached at the placement site
  4. App settings:
    • Disable battery optimization for your app to ensure consistent readingsConfigure alarms according to your needs
    • Set up regular backups of your app settings
  5. Multiple devices:
    • If you use multiple devices, designate one as the “master” uploader to avoid duplicate data

Additional Resources

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