def _open_serial(self): """Open serial port with DMX timing parameters.""" try: self.serial = serial.Serial( port=self.com_port, baudrate=250000, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_TWO, timeout=0, write_timeout=0 ) print(f"✅ Lixada DMX connected on self.com_port") except Exception as e: raise RuntimeError(f"Failed to open self.com_port: e")
def set_all(self, value): """Set all 512 channels to same value (0-255).""" with self.lock: self.dmx_data[:] = bytes([value] * self.DMX_CHANNELS) lixada usb dmx 512 driver windows 10
def _send_dmx_frame(self, data): """Send one complete DMX frame: break + start code + 512 slots.""" with self.lock: # 1. Break self._send_break() # 2. Start code (0 for level data) self.serial.write(bytes([0])) # 3. DMX channel data (1-512) self.serial.write(data) self.serial.flush() def _open_serial(self): """Open serial port with DMX timing
def _continuous_sender(self, fps): interval = 1.0 / fps while self.running: start = time.perf_counter() self.send_frame() elapsed = time.perf_counter() - start if elapsed < interval: time.sleep(interval - elapsed) DMX channel data (1-512) self
def _send_break(self): """Generate DMX break by setting baudrate to low value temporarily.""" # Standard trick for Open DMX: set low baudrate to create break self.serial.baudrate = 9600 self.serial.write(b'\x00') self.serial.baudrate = 250000 # Small delay for MAB (hardware-dependent) time.sleep(self.MAB_TIME)
def set_channel(self, channel, value): """ Set DMX channel value. Args: channel: 1..512 value: 0..255 """ if channel < 1 or channel > self.DMX_CHANNELS: raise ValueError(f"Channel must be 1..self.DMX_CHANNELS") if value < 0 or value > 255: raise ValueError("Value must be 0..255") with self.lock: self.dmx_data[channel - 1] = value