def find_lixada_port(self): """Auto-detect CP2102 or CH340 serial port.""" ports = serial.tools.list_ports.comports() for port in ports: # CP2102 or CH340 typically used in Lixada dongles if 'CP210' in port.description or 'CP210' in port.product or \ 'CH340' in port.description or 'CH34' in port.vid: return port.device # Fallback: any USB serial port (user confirms) if 'USB Serial' in port.description or 'UART' in port.description: print(f"Possible DMX port found: port.device - port.description") # Return first candidate return port.device return None
def start_continuous_sending(self, fps=44): """ Start background thread sending DMX continuously. Standard DMX refresh rate is ~44Hz (22-44 Hz typical). """ if self.running: return self.running = True self._sender_thread = threading.Thread(target=self._continuous_sender, args=(fps,), daemon=True) self._sender_thread.start() print(f"Continuous DMX sending started at fps FPS")
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")
if == " main ": print("Lixada USB DMX512 Windows 10 Driver Script") print("-------------------------------------------") lixada usb dmx 512 driver windows 10
def blackout(self): """Set all channels to 0.""" self.set_all(0)
from lixada_dmx import LixadaDMX dmx = LixadaDMX() # auto-finds COM port dmx.start_continuous_sending(fps=44) dmx.set_channel(1, 255) # full brightness channel 1 dmx.close() 6. Important notes for Windows 10 | Issue | Fix | |-------|-----| | Driver not loading | Disable driver signature enforcement temporarily (not recommended) or use official CH340/CP210x drivers | | No DMX output | Some dongles need 5-12V power on DMX line (fixture provides it) | | Wrong baud rate | Lixada requires 250000 – verify in code | | Timing sensitive | The _send_break() method works on most Windows 10 PCs. If unstable, use QL+ or Freestyler instead | If you need a real Windows kernel driver (not a userspace script) or a signed .inf driver package , that is a much larger task requiring Microsoft certification and hardware testing. For 99% of users, the Python script + standard USB-serial driver is the correct solution.
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() Important notes for Windows 10 | Issue |
After install, you will see (e.g., COM3 ). Write this down – you need it for software. No “DMX driver” is needed – the OS sees it as a serial port. 3. Software that works on Windows 10 | Software | Works? | Notes | |----------|--------|-------| | QLC+ (open source) | ✅ Yes | Choose “Open DMX USB” | | Freestyler | ✅ Yes | Configure as “DMX4ALL” or “Open DMX” | | DMXControl 3 | ⚠️ Partial | Needs manual config | | OLA (Windows) | ✅ Yes | Use ola_dmxserial | | Python + pyserial | ✅ Full control | You write the logic | 4. Python feature – Full DMX control script Here is a complete, safe Python script that works on Windows 10 with your Lixada dongle.
""" Lixada USB DMX512 driver replacement (Windows 10) Uses direct serial port communication with Open DMX protocol. """ import serial import serial.tools.list_ports import time import threading import sys
DMX_CHANNELS = 512 BREAK_TIME = 0.0001 # 100µs break MAB_TIME = 0.000012 # 12µs mark after break val in channel_values_dict.items(): self.set_channel(ch
def set_channels(self, channel_values_dict): """Set multiple channels at once.""" for ch, val in channel_values_dict.items(): self.set_channel(ch, val)
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)
def send_frame(self): """Send current DMX data immediately.""" with self.lock: data_copy = bytes(self.dmx_data) self._send_dmx_frame(data_copy)
class LixadaDMX: """Controls Lixada USB DMX512 dongle on Windows 10."""
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)