Example2-DMXInput needs all DMX channels in universe to have a value?

[patrick-smael]

When testing example 2 with my lighting controller (in my case QuickDMX) I noticed that all of the 512 dmx channels need to have set a value on my dmx output device (D512) instead of being blank (No DMX value -> DMX value 0?) in order for the ESP to correctly read out, in this case, DMX channel 1... So it now takes up a whole universe to be able to read DMX channel input on the ESP. How can this be solved and what causes this? Does it have something to do that the channel bytes cannot be left empty?