Bluetooth Low Energy (BLE) Library for Python
A BLE abstraction layer for Python inspired by [bleat](https://github.com/thegecko/bleat). Currently only supports Linux, with experimental support for Mac OS X.
## Current Support
- Discovering devices
- Reading advertising data
- Connecting to devices
- Discovering services, characteristics and descriptors
- Read from characteristics
First, install my fork of pygattlib and its dependencies:
`bash sudo apt-get install libboost-python-dev libboost-thread-dev libbluetooth-dev libglib2.0-dev python-dev `
You should also make sure that your version of libbluetooth is at least 4.101:
`bash apt-cache policy libbluetooth-dev | grep Installed `
Then, clone the repository, and install the python package.
`bash git clone https://github.com/matthewelse/pygattlib.git cd pygattlib sudo python setup.py install `
This will build the dynamic library, and install the python package.
You can then install bleep easily:
`bash sudo pip install bleep `
If you want to develop bleep, instead of the last line, run:
` sudo python setup.py develop `
This will cause any changes you make to bleep to be reflected when you import the library.
> NOTE: You may need to run all BLE code with sudo, even when using the Python interactive shell.
### Mac OS X
Installation on Mac OS X is very simple:
`bash git clone https://github.com/matthewelse/bleep.git cd bleep sudo python setup.py install `
Likewise, if you would like to develop bleep, run this instead of the last line:
`bash sudo python setup.py develop `
You can run tree.py to see all of the services, characteristics and descriptors attached to a device with a specific mac address. In order to find the device’s mac address, you could use hcitool lescan, or use BLEDevice.discoverDevices().
` usage: tree.py [-h] mac `
### Include bleep
`python >>> from bleep import BLEDevice `
### Scan for devices
`python >>> devices = BLEDevice.discoverDevices() >>> devices [Device Name: (5A:79:8E:91:83:1C), Device Name: (C1:20:68:1B:00:26), Device Name: BLE Keyboard (C9:E8:56:3B:4D:B1), Device Name: (4C:25:F5:C2:E6:61), Device Name: (60:03:08:B2:47:F1), Device Name: (C1:62:3A:1D:00:14)] `
This will return a list of Device objects, however you won’t be connected to any of them, so pick one you like, and connect to it:
`python >>> device = devices >>> device.connect() `
You can then access the device’s services:
`python >>> device.services [Generic Access, Generic Attribute, Device Information, Battery Service, Human Interface Device] `
each service’s characteristics
`python >>> service = device.services >>> service Human Interface Device >>> service.characteristics [HID Information, Report Map, Protocol Mode, HID Control Point, Report, Report] `
and each characteristic’s descriptors
`python >>> char = service.characteristics >>> char Report >>> char.descriptors [Client Characteristic Configuration, Report Reference] `
### Useful Functionality
BLEDevice.discoverDevices supports parameters which allow you to specify which BLE device to connect to (ignored on OSes other than Linux), how long to sample for, as well as a function which returns a boolean value, allowing you to cherry-pick your devices.
`python def discoverDevices(device='hci0', timeout=5, filter=lambda x: True) `
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