I am using an ESP8266 NodeMCU with a SK6812 strip, WLED 0.12 and 0.13 tested. Everything seems to work fine, however, when the Light is on, depending on the effect, my radio picks up noise. I hear a humming with roughly 2 Hz. If I reduce the number of Lights from 200 to 30, the humming is gone. At first I suspected the power supply starts to oscillate, however, that is not the case.
The blue led on the NodeMCU flashes with roughly 2 Hz when the number of lights is set to about > 120. On the LED strip you cannot see a flashing, but maybe its just too quick for my eyes to see it.
Now the interesting thing: For debugging I disconnected the strip an still I observe the onboard LED flashing. After further debugging its obvious that the flashing frequency correlates to the fps I get from my effect.
So I guess whats happening is that my LEDs are switched off for a very short time at the fps rate. Too quick to see by eye, but the radio picks up noise.
I know the onboard LED is connected to GPIO2 on my device. So I already changed the GPIO Pin for the strip. Then the onboard LED stops flickering, however, the humming is still there, indicating that the strip still is switched on/off.
Any hints what I could try to fix this?