ftd2xx controller

PyDMXControl/controllers/_FTD2XXController.py

@@ -0,0 +1,63 @@
+"""
+ *  PyDMXControl: A Python 3 module to control DMX using OpenDMX or uDMX.
+ *                Featuring fixture profiles, built-in effects and a web control panel.
+ *  <https://github.com/MattIPv4/PyDMXControl/>
+ *  Copyright (C) 2022 Matt Cowley (MattIPv4) ([email protected])
+"""
+
+from time import sleep
+from typing import List
+
+from ._TransmittingController import TransmittingController
+
+try:
+    import ftd2xx
+except OSError as e:
+    print("ftd2xx binaries not present")
+
+class FTD2XXController(TransmittingController):
+
+    def __init__(self, device_number, *args, **kwargs):
+        """
+        FTD2CXX interface requires a device number to establish connection, e.g. 0
+
+        Parameters
+        ----------
+        device_number: int
+        """
+
+        # Store the device_number and device
+        self.__device_number = device_number
+        self.__device = None
+        super().__init__(*args, **kwargs)
+
+    def _connect(self):
+        # Try to close if exists
+        if self.__device is not None:
+            try:
+                self.__device.close()
+            except Exception:
+                pass
+
+        # Get new device
+        self.__device = ftd2xx.open(self.__device_number)
+        self.__device.resetDevice()
+        self.__device.setBaudRate(250000)
+        self.__device.setDataCharacteristics(8, 2, 0) # 8 bit word, 2 stop bit, no parity
+
+    def _close(self):
+        self.__device.close()
+        print("CLOSE: FTD2XX device connection closed")
+
+    def _transmit(self, frame: List[int], first: int):
+        # Convert to a bytearray and pad the start of the frame
+        # We're transmitting direct DMX data here, so a frame must start at channel 1, but can end early
+        data = bytearray(([0] * (first - 1)) + frame)
+
+        # The first byte in the type, and is `0` for normal DMX data
+        data.insert(0, 0)
+
+        # Write
+        self.__device.setBreakOn()
+        self.__device.setBreakOff()
+        self.__device.write(bytes(data))

PyDMXControl/controllers/__init__.py

@@ -23,3 +23,4 @@
 from ._uDMXController import uDMXController
 from ._OpenDMXController import OpenDMXController
 from ._SerialController import SerialController
+from ._FTD2XXController import FTD2XXController

requirements.txt

@@ -9,4 +9,7 @@ pyftdi>=0.54.0,<=0.55.0
 pyserial>=3.5,<4.0
 
 # Web
-Flask>=2.3,<3.0
+Flask>=2.3,<3.0
+
+#FTD2XX
+ftd2xx>=1.3.6