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Python implementation of the HID protocol used by Abbott FreeStyle devices

Project description

Python library to interact with Abbott FreeStyle devices

This repository includes a library and some tools to interact with Abbott FreeStyle devices that use their shared HID protocol.


There are a number of tools that interact with either the devices or with USB session captures that are installed together when selecting the tools extra:

  • freestyle-hid-console allows sending direct text messages to a compatible device on the console;
  • freestyle-extract-chatter can produce a "chatter" file based on a capture of an USB session, either from Linux or Windows.
  • freestyle-encrypted-setup-extract is an experimental tool to extract the encryption parameters of devices using the encrypted protocol (e.g. Libre2).


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
$ cd freestyle-hid
$ python3 -m venv --python=python3.7
$ . venv/bin/activate
$ pip install -e .[dev,tools]
$ pre-commit install

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