I have 3 LED strip (SK6812, 5V), 3 meters each (around 450 pixels per strip).
Data pins are plugged directly to Arduino MKR Zero. I use an external 5V 3A power supply plugged into breadboard. To the breadboard I also plug the LEDs pwr and ground. That works but it melted the breadboard....
To prevent melting I tried plugging the LEDs' power and ground directly into the external power supply, the LED light up with strange glitches and crazy patterns, they are not responding to the program at all.
Why is that happening and how to resolve that issue?