@Nathanael_Lecaude If you have absolutely nothing different at home, than as unlikely as it seems to me, maybe there is something weird with the mains where you plan to install it !!
Did you figure out the 1V drop in the data line ??
Actually, you need to consider the environment as well. There may be noise generating equipment nearby !?
I did not figure the 1v drop yet, I assume it can’t be the wiring as the cable is very short, I’ll try with new wiring though to make sure.
We tried closing all AC equipment around yesterday but it did not seem to help. It’s in a big industrial building though so there might be interference from other floors. I’ll also try testing with a furman to see if it helps.
Did you check for nose (and voltage) on the power lines on the panels ? Quite likely to get power line noise caused by the LEDs switching. Are you using same cables and power supplies in both locations ?
I’d try adding some local capacitors across the power rails on the panels, Some bigger electrolytics to smooth the current peaks and smaller ones to (100nF0 to help with higher frequency noise. Is the the 4V data line on the output of the strips? This suggests the voltage drop is in the power rails so bigger power cables may help.
And make sure you have separate power cables from the PSU to each panel
Thanks for the tips, I checked the 5V rail on the strip and it looked good.
The 1V drop on the data line seems to be just after the connector, as if the LED was reshaping the waveform. I measured 4V all along the strip’s length (4m)
I was using the same power supplies at both locations.
Make sure you move the scope GND. You may just be looking at a 1V DC drop on the GND wiring
Yes with the analog’s discovery inputs are differential so I was moving a long the strip (both ground and signal)
Have a look at the 5V on the strips while you get your flickering to see how much noise you get there.