WARNING: NFC malfunctions on Samsung phones running Android 16.

Juggluco is an app that receives glucose values via Bluetooth from Freestyle Libre 2, 2+, 3 and 3+, Sibionics GS1Sb, Dexcom G7/ONE+ and Accu-Chek SmartGuide sensors. In addition, Juggluco can scan NovoPen® 6 and NovoPen Echo® Plus and receive test results via Bluetooth from Contour Next glucose meters. Juggluco can send glucose values to all kinds of smartwatches, see left menu→Watch→Help: https://www.juggluco.nl/Jugglucohelp/watchinfo.html The phone version of Juggluco can talk out incoming glucose values, display it in a widget on the home screen and in floating glucose above other apps. Juggluco can display the usual glucose statistics. Other apps can receive data from Juggluco via glucose broadcasts and the web server in Juggluco. Juggluco can send data to Health Connect, Libreview and Nightscout. Data can also be exported to a file or send to another exemplar of Juggluco on another phone, tablet, emulator or watch. It has the option to set low and high glucose alarms and medication reminders.

Start

To use a Libre 2 sensor, scan it with Juggluco. To take over a Libre 3 sensor from Abbott's Libre 3-only app, you need to enter in left menu→Settings→Exchange data→Libreview the same account as when activating the sensor and press Get account ID, to receive a number from Libreview. When you now scan the sensor, this number will be sent to the sensor and needs to be the same every time. No Libreview account is needed, when the Libre 3 sensor is activated with Juggluco: enter an arbitrary number before scanning the sensor. The first time it takes 2 to 10 minutes before Juggluco receives a glucose value via Bluetooth from the sensor. To prevent interference, force stop apps and turn off devices previously used with the sensor. To keep Juggluco running in the background, allow background activity and turn off battery optimizations for Juggluco. Don’t hide Juggluco’s notification. After scanning a Libre 2 sensor with Juggluco, Abbott’s Libre 2 app can only scan the sensor (when two apps are on the same phone they can both receive glucose values from European Libre 2 sensors, but this can give connection problems.) Libre 3 sensors can still be used with Abbott’s Libre 3 app after using it with Juggluco: stop Juggluco and scan the sensor with Abbott’s Libre 3 app, agreeing that you stop the current sensor and start a new one. When going back to Juggluco you have to scan again. To use a Dexcom G7/ONE+ sensor, scan the data matrix on the applicator with left menu→Photo. For Accu-Check SmartGuide sensors, scan the data matrix on the blue cap and when asked enter the pin. For Sibionics GS1Sb sensors you need to scan the data matrix on the package. See: https://www.juggluco.nl/Juggluco/sensors

Wear OS

The phone version of Juggluco scans the sensor and sends this data to the WearOS version of Juggluco. Bluetooth on both phone and watch needs to be turned on. For fast transmission, also WIFI. After initialization, you can switch on and off directly connecting the sensor with the watch, with left menu→Watch→Wear OS config→Direct sensor-watch connection. https://github.com/j-kaltes/Juggluco/wiki#wearos-watches collects information about how well different watches work with Juggluco. Wear OS version contains complications to display the glucose level on a watch face. https://www.juggluco.nl/Jugglucohelp/introhelp.html

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