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===== bleak

.. figure:: https://raw.githubusercontent.com/hbldh/bleak/master/Bleak_logo.png :target: https://github.com/hbldh/bleak :alt: Bleak Logo :scale: 50%

.. image:: https://github.com/hbldh/bleak/workflows/Build%20and%20Test/badge.svg :target: https://github.com/hbldh/bleak/actions?query=workflow%3A%22Build+and+Test%22 :alt: Build and Test

.. image:: https://img.shields.io/pypi/v/bleak.svg :target: https://pypi.python.org/pypi/bleak

.. image:: https://readthedocs.org/projects/bleak/badge/?version=latest :target: https://bleak.readthedocs.io/en/latest/?badge=latest :alt: Documentation Status

.. image:: https://img.shields.io/badge/code%20style-black-000000.svg :target: https://github.com/psf/black

Bleak is an acronym for Bluetooth Low Energy platform Agnostic Klient.

Bleak is a GATT client software, capable of connecting to BLE devices acting as GATT servers. It is designed to provide a asynchronous, cross-platform Python API to connect and communicate with e.g. sensors.

Installation

.. code-block:: bash

$ pip install bleak

Features

  • Supports Windows 10, version 16299 (Fall Creators Update) or greater
  • Supports Linux distributions with BlueZ >= 5.43
  • OS X/macOS support via Core Bluetooth API, from at least OS X version 10.11

Bleak supports reading, writing and getting notifications from GATT servers, as well as a function for discovering BLE devices.

Usage

To discover Bluetooth devices that can be connected to:

.. code-block:: python

import asyncio
from bleak import BleakScanner

async def run():
    devices = await BleakScanner.discover()
    for d in devices:
        print(d)

loop = asyncio.get_event_loop()
loop.run_until_complete(run())

Connect to a Bluetooth device and read its model number:

.. code-block:: python

import asyncio
from bleak import BleakClient

address = "24:71:89:cc:09:05"
MODEL_NBR_UUID = "00002a24-0000-1000-8000-00805f9b34fb"

async def run(address):
    async with BleakClient(address) as client:
        model_number = await client.read_gatt_char(MODEL_NBR_UUID)
        print("Model Number: {0}".format("".join(map(chr, model_number))))

loop = asyncio.get_event_loop()
loop.run_until_complete(run(address))

See examples folder for more code, for instance example code for connecting to a TI SensorTag CC2650 <http://www.ti.com/ww/en/wireless_connectivity/sensortag/>_


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python (55,394
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