I have one NodeMCUv3 Lolin flashed with WLED connected to a 12V WS2811 Led Strip using a 12V to 5V Buck converter working superb.
Now I was trying another one but this time with a 5V WS2811 Bulb Strip (Like Christmas Lights). If I connect all of it through an External Power Supply, the NodeMCU doesn’t boot and the lights do not light up. BUT If I press the Reset Button on the NodeMCU board the LEDs all light up ok but the NodeMCU board isn’t still accessible via WLED Wifi. Connection as per below:
If I power the NodeMCU through Laptop USB it boots and the lights also but since they don’t have the same GND the lights flicker which is normal.
I have tried 3 Power supplies, 2 or 3 NodeMCUs so the issue isn’t with those components I guess.
Thanks in advance for the help.