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rstephan / ArtnetnodeWifi

Arduino library for a Art-Net-Node (artnet) over WiFi, handle DMX data and response to Poll requests. Runs on ESP8266, ESP32, WiFi101 and WiFiNINA devices.
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DMXsend problems with certain devices #22

Open tlundi60 opened 1 year ago

tlundi60 commented 1 year ago

Hello and thanks again for the great library It works really well in my experiments. (dmx send) but with two devices (cheap goods) the device reports a DMX signal but not responding to input. I've done some research and have an opinion on the issue timing or DMX refresh rate ;

Is there anything you can change to see if it has an impact?

rstephan commented 1 year ago

Hi, if you thing this is some sort of overload, you can simply try to reduce the from the Art-Net source. Maybe the software has on option for frames per second (FPS)? My library puts out what it can/gets.

If this is not possible, you can implement a "rate limiter" in the onDmxFrame() function. 

static int counter = 0;
counter++;
if ((counter % 4) == 0) {
  return;
}

This will drop every 4th frame. This will give your device a bit more time to process the data.

tlundi60 commented 1 year ago

Hello and thanks for the support I'll experiment a little, I suspect that the cheap DMX devices probably don't buffer the input, because after a few tries I have the DMX commands displayed for about 1-2 seconds before the lamp goes dark again