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MetaWear Python SDK | ||
################### | ||
Python SDK for creating MetaWear apps on the Linux platform. This is a thin wrapper around the `MetaWear C++ API <https://github.com/mbientlab/MetaWear-SDK-Cpp>`_ so you will find the C++ | ||
`documentation <https://mbientlab.com/cppdocs/latest/>`_ and `API reference <https://mbientlab.com/docs/metawear/cpp/latest/globals.html>`_ useful. Also, check out the scripts in the | ||
`examples <https://github.com/mbientlab/MetaWear-SDK-Python/tree/master/examples>`_ folder for full sample code. | ||
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**This is not the pymetawear package. That is a community developed Python SDK which you can find over** | ||
`here <https://github.com/mbientlab-projects/pymetawear>`_ **.** | ||
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Install | ||
####### | ||
Use pip to install the metawear package. It depends on `PyWarble <https://github.com/mbientlab/PyWarble>`_ so ensure your target environment has the necessary `dependencies <https://github.com/mbientlab/Warble#build>`_ installed. | ||
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.. code-block:: bash | ||
pip install metawear | ||
Usage | ||
##### | ||
Import the MetaWear class and libmetawear variable from the metawear module and everything from the cbindings module. | ||
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.. code-block:: python | ||
from mbientlab.metawear import MetaWear, libmetawear | ||
from mbientlab.metawear.cbindings import * | ||
If you do not know the MAC address of your device, use ``PyWarble`` to scan for nearby devices. | ||
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.. code-block:: python | ||
from mbientlab.warble import * | ||
from mbientlab.metawear import * | ||
from threading import Event | ||
e = Event() | ||
address = None | ||
def device_discover_task(result): | ||
global address | ||
if (result.has_service_uuid(MetaWear.GATT_SERVICE)): | ||
# grab the first discovered metawear device | ||
address = result.mac | ||
e.set() | ||
BleScanner.set_handler(device_discover_task) | ||
BleScanner.start() | ||
e.wait() | ||
BleScanner.stop() | ||
Once you have the device's MAC address, create a MetaWear object with the MAC address and connect to the device. | ||
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.. code-block:: python | ||
device = MetaWear(address) | ||
device.connect() | ||
Upon a successful connection, you can begin calling any of the functions from the C++ SDK, for example, blinking the LED green. | ||
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.. code-block:: python | ||
pattern= LedPattern(repeat_count= Const.LED_REPEAT_INDEFINITELY) | ||
libmetawear.mbl_mw_led_load_preset_pattern(byref(pattern), LedPreset.BLINK) | ||
libmetawear.mbl_mw_led_write_pattern(device.board, byref(pattern), LedColor.GREEN) | ||
libmetawear.mbl_mw_led_play(device.board) | ||
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