Python control of the Enttec DMX USB Pro
Control the Enttec DMX USB Pro with Python3
This package solely depends on
pyserial. You can install a recent release on
pip install DMXEnttecPro
or by getting the repository from GitHub and doing something along the lines of:
git clone email@example.com:SavinaRoja/DMXEnttecPro.git cd DMXEnttecPro pip install .
If you don't know the serial address of the DMX controller yet, you can do the following to identify it:
python -m DMXEnttecPro.utils
which will give you some detailed information on all COM ports like this:
COM4 name: None description: USB Serial Port (COM4) hwid: USB VID:PID=0403:6001 SER=EN055555A vid: 1027 pid: 24577 serial_number: EN055555A location: None manufacturer: FTDI product: None interface: None
Once you know your serial address, setting up a connection to your Enttec DMX USB Pro is simple:
from DMXEnttecPro import Controller #dmx = Controller('COM4') # Typical of Windows dmx = Controller('/dev/ttyUSB0') # Typical of Linux
Then you can set channel values easily (DMX Channels are 1-indexed, and
Controller maintains that convention for you.) with:
dmx.set_channel(1, 255) # Sets DMX channel 1 to max 255 dmx.submit() # Sends the update to the controller
In some environments where you may not be assured of the precise string of your
COM port, I recommend using a uniquely identifying mark like the serial number
or product ID. Some helpers exist in
from DMXEnttecPro import Controller from DMXEnttecPro.utils import get_port_by_serial_number, get_port_by_product_id my_port = get_port_by_serial_number('EN055555A') my_port = get_port_by_product_id(24577) dmx = Controller(my_port)
There are three main additional features that this package offers: auto-submission of changes and configurable size of DMX universe.
You may supply
auto_submit=True to instantiation of
Controller to tell it
to automatically submit changes on any action changing channel values:
dmx = Controller('/dev/ttyUSB0', auto_submit=True)
submit_after=<bool> can be provided to any action changing
channel values and it will take precedence over the configured
value of the
DMX Size Configuration
The size of the DMX universe defaults to 512 channels. There are apparently
occasions where finer timescales can be achieved in DMX by constraining this.
dmx_size=<int> may be supplied to instantiation of
dmx = Controller('/dev/ttyUSB0', dmx_size=256) # use only 256 channels
DMXEnttecPro evolved from my re-write of pysimpledmx for compatibility with Python3.
pyenttec is another good package.
So far I have only utilized features with which I am personally familiar and have wanted. Please submit any issues or feature requests along with usage needs and I would be happy to evaluate them.
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