https://github.com/smarek/dmx-python-client

Library for consuming DMX-512 over serial port (typically RS485 to RS232 converter) and detecting valid DMX frames
https://github.com/smarek/dmx-python-client

dmx dmx512 pyserial python rs232 rs485

Last synced: 25 days ago
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Library for consuming DMX-512 over serial port (typically RS485 to RS232 converter) and detecting valid DMX frames

• Host: GitHub
• URL: https://github.com/smarek/dmx-python-client
• Owner: smarek
• License: apache-2.0
• Created: 2022-01-12T15:32:36.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2022-04-13T21:38:23.000Z (over 2 years ago)
• Last Synced: 2024-09-21T13:52:55.919Z (about 2 months ago)
• Topics: dmx, dmx512, pyserial, python, rs232, rs485
• Language: Python
• Homepage:
• Size: 23.4 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# DMX-512 python serial client

Per limitation of pySerial this utility helps with properly setting the serial port on POSIX/LINUX and detecting

SYNC/BREAK within the stream of data

## Usage

```python

from roh.dmx.client.dmx_client import DmxClient

from roh.dmx.client.dmx_client_callback import DmxClientCallback

from typing import Dict

# define callback, you can override even just one method, for example data_received

class MyDmxCallback(DmxClientCallback):

    """

    Example implementation of all available callback methods

    """

    def sync_lost(self) -> None:

        print("SYNC LOST")

    def sync_found(self) -> None:

        print("SYNC FOUND")

    def data_received(self, monitored_data: Dict[int, int]) -> None:

        print("VALID MONITORED DATA: %s" % monitored_data)

    def full_data_received(self, data: bytes) -> None:

        pass

# use client with /dev/ttyUSB0 port and monitor dmx address no. 1 for values

c: DmxClient = DmxClient('/dev/ttyUSB0', [1], MyDmxCallback())

c.run()

```

## References

  - https://github.com/pyserial/pyserial/issues/539 - Issue about pySerial limitation when consuming DMX-512

  - [Using a Raspberry Pi as a PC-DMX interface (Florian Edelmann) - PDF](https://www.mnm-team.org/pub/Fopras/edel17/PDF-Version/edel17.pdf)

  - https://man7.org/linux/man-pages/man3/termios.3.html - documentation of PARMRK, IGNBRK and BRKINT settings of virtual terminal