Hi, I'm having an issue using longer lengths of ws2801. Up to 87 LEDs they work fine, no flickering when changing colors, just smooth transition. 90 I get an occasional flicker. 92 the whole array starts flickering. Static colors work fine, it's just the color change that flickers.
I need 98 for my project.
Tested multiple power supplies, it made no difference. LED psu ground is connected to Arduino ground. End of the strip is also connected to the PSU (disconnecting it made no difference). Tested multiple Arduinos.
I'm using a simple fastLED based Adalight sketch. To remove the flicker, it is enough to change the number of LEDs in the sketch, so I'm guessing it should not be a hardware problem. There is nothing weird on that part of the LED strip.
Link to the Adalight sketch
Do you have any suggestion what to try next?