I’ve had a 2 meter strip set up and working beautifully for maybe a year.
Now, when they first startup they flash random colors but after a minute or so will eventually stabilize with only the occasional relapse. The worst of the flashing tends to be on the side furthest from the controller (Wemos D1 mini).
A single 5v 20A power supply is used for the strips and the Wemos d1 mini, and the d4 pin if the mini passes through this level shifter: https://www.adafruit.com/product/757 and then a 470 Ohm resistor.
I have changed the 1000 uf capacitors, and added a third power injection point at the far side of the strips, checked various contacts, fiddled with settings, even switched the pins on the level shifter, and I still can’t get the dang thing to work like it used to.
LED # 25 seems to constantly be the point where the correct color stops (it itself is off), and down the line goes wild. Led #25 was for some time the location of a rather sharp turn in the strip. When the rest of the strip stabilizes, this LED turns on as expected.
Additionally, the webui has occasionally been unresponsive recently.
What do you guys think could be going on?