Glucometer Utilities

This repository includes a command line utility to interact with a number of blood sugar meters (glucometer) models from various manufacturers.

While support varies by device, the actions that may be available are as follows:

• info shows the model, serial number, date and time, and configured glucose unit of the device.
• dump export the recorded blood sugar or β-ketone readings from the device in comma-separated values format.
• datetime reads or updates the date and time of the device clock.
• zero deletes all the recorded readings (only implemented for few devices).

Example Usage

Most of the drivers require optional dependencies, and those are listed in the table below. If you do not want to install the dependencies manually, you should be able to set this up using virtualenv and pip:

$ python3 -m venv $(pwd)/glucometerutils-venv
$ . glucometerutils-venv/bin/activate
(glucometerutils-venv) $ DRIVER=myglucometer-driver  # see table below
(glucometerutils-venv) $ pip install "git+https://github.com/glucometers-tech/glucometerutils.git#egg=glucometerutils[${DRIVER}]"
(glucometerutils-venv) $ glucometer --driver ${DRIVER} help

Supported devices

Please see the following table for the driver for each device that is known and supported.

Manufacturer	Model Name	Driver	Dependencies
LifeScan	OneTouch Ultra 2	otultra2	pyserial
LifeScan	OneTouch Ultra Easy	otultraeasy	construct pyserial
LifeScan	OneTouch Ultra Mini	otultraeasy	construct pyserial
LifeScan	OneTouch Verio IQ	otverioiq	construct pyserial
LifeScan	OneTouch Verio (USB)	otverio2015	construct python-scsi
LifeScan	OneTouch Select Plus	otverio2015	construct python-scsi
LifeScan	OneTouch Select Plus Flex¹	otverio2015	construct python-scsi
Abbott	FreeStyle Freedom Lite†	fsfreedomlite	pyserial
Abbott	FreeStyle InsuLinx†	fsinsulinx	freestyle-hid hidapi‡
Abbott	FreeStyle Libre	fslibre	freestyle-hid hidapi‡
Abbott	FreeStyle Libre 2	fslibre2	freestyle-hid freestyle-keys hidapi‡
Abbott	FreeStyle Optium	fsoptium	pyserial
Abbott	FreeStyle Precision Neo	fsprecisionneo	freestyle-hid hidapi‡
Abbott	FreeStyle Optium Neo	fsprecisionneo	freestyle-hid hidapi‡
Abbott	FreeStyle Optium Neo H	fsprecisionneo	freestyle-hid hidapi‡
Roche	Accu-Chek Mobile	accuchek_reports
SD Biosensor	SD CodeFree	sdcodefree	construct pyserial
TaiDoc	TD-4277	td42xx	construct pyserial² hidapi
TaiDoc	TD-4235B	td42xx	construct pyserial² hidapi
GlucoRx	Nexus	td42xx	construct pyserial² hidapi
GlucoRx	NexusQ	td42xx	construct pyserial² hidapi
Menarini	GlucoMen Nexus	td42xx	construct pyserial² hidapi
Aktivmed	GlucoCheck XL	td42xx	construct pyserial² hidapi
Ascensia	ContourUSB	contourusb	construct hidapi‡
Menarini	GlucoMen areo³	glucomenareo	pyserial crcmod

† Untested.

‡ Optional dependency on Linux; required on other operating systems.

¹ USB only, bluetooth not supported.

² Requires a version of pyserial supporting CP2110 bridges. Supported starting from version 3.5.

³ Serial cable only, NFC not supported.

To identify the supported features for each of the driver, query the help action:

glucometer.py --driver fslibre help

If you have knowledge of a protocol of a glucometer you would have supported, please provide a reference, possibly by writing a specification and contribute it to https://protocols.glucometers.tech/ .

Dump format

The dump action by default will output CSV-compatible format, with the following fields:

• date and time;
• meter reading value;
• before/after meal information, if known;
• comment provided with the reading, if any.

Meal and comment information is provided by the meters supporting the information. In the future, meal information could be guessed based on the time of the reading.

The unit format used by the dump by default matches what the meter reports as its display unit, which might differ from the one used by the meter for internal representation and wire protocol. You can override the display unit with --unit.

Development

The tool is being written keeping in mind that different glucometers, even if they are all from the same manufacturer, will use different protocols.

If you want to contribute code, please note that the target language is Python 3.9, and that the style to follow is for the most part PEP8 compatible.

To set up your development environment follow these guidelines:

$ git clone https://github.com/glucometers-tech/glucometerutils.git
$ cd glucometerutils
$ python3 -m venv --python=python3.7
$ . venv/bin/activate
$ pip install -e .[dev]
$ # If you want to work on a specific driver specify this after dev e.g.
$ # pip install -e .[dev,myglucometer-driver] # see table above
$ pre-commit install

License

Copyright © 2013-2020 The glucometerutils Authors

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.