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sACN RGBW Overflow error

See original GitHub issue

Traceback (most recent call last):
  File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.9/threading.py", line 892, in run
    self._target(*self._args, **self._kwargs)
  File "/home/pi/led-control/.eggs/sacn-1.8.1-py3.9.egg/sacn/receiving/receiver_socket_udp.py", line 57, in receive_loop
    self._listener.on_data(raw_data, time.time())
  File "/home/pi/led-control/.eggs/sacn-1.8.1-py3.9.egg/sacn/receiving/receiver_handler.py", line 59, in on_data
    self.fire_callbacks_universe(tmp_packet)
  File "/home/pi/led-control/.eggs/sacn-1.8.1-py3.9.egg/sacn/receiving/receiver_handler.py", line 143, in fire_callbacks_universe
    self._listener.on_dmx_data_change(packet)
  File "/home/pi/led-control/.eggs/sacn-1.8.1-py3.9.egg/sacn/receiver.py", line 45, in on_dmx_data_change
    callback(packet)
  File "/home/pi/led-control/ledcontrol/animationcontroller.py", line 106, in _sacn_callback
    self.led_controller.set_all_pixels_rgb_float(
  File "/home/pi/led-control/ledcontrol/ledcontroller.py", line 93, in set_all_pixels_rgb_float
    driver.ws2811_rgb_render_array_float(self._leds, self._channel, pixels, len(pixels),
OverflowError: in method 'ws2811_rgb_render_array_float', argument 4 of type 'int'

When I try and turn sACN on on the web interface (with 300 rgbw leds) I get this overflow error which I believe makes the sACN server unable to receive any input, so the lights don’t change when LedFx sends them a command

Issue Analytics

State:
Created 2 years ago
Comments:7 (2 by maintainers)

Top GitHub Comments

1reaction

jackw01commented, Jan 5, 2022

This is intentional because LEDFx and similar programs do not support RGBW (four-channel DMX) control. LEDControl only takes RGB input over sACN and the ws2811_rgb_render_array_float function automatically handles converting between color spaces if RGBW LEDs are being used.

This error message indicates some issue with the data being sent over sACN that is causing an integer overflow. What are you using to send sACN input?

Can you add print(pixels) as the first line of the function def set_all_pixels_rgb_float(self, pixels, correction, saturation, brightness, gamma): in ledcontroller.py to see what the actual pixel data being sent to the rendering code is?

0reactions

jrparadiscommented, Feb 23, 2022

I’m having the same issue, going below 170 LEDs works, but above that, sacn doesn’t work.

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