Need advice on LED strips wiring

[chung705]

@PaulRB

So you will make no more changes to the schematic? There are still errors there. For example the ground wires I mentioned in post #2.

I should have said latest instead of final. Do you mean

You should run a ground cable alongside the data cables, ideally a cable with 3 conductors so they always run together. This ground cable does not need to be heavy gauge because it will not carry much current, that will be carried by the heavy gauge ground cables going directly to the psu.

I though I have added a dedicated ground(black) wire to each strip from the PSU? Did I Bark up the wrong tree?

@PaulRB

Look harder. These are commonly available components. Buy a dip-chip for breadboard compatibility, and do not forget to add a 0.1uF bypass cap.

In the case I DO need a level shifter, do you mean I have add a 0.1uF between pin 38(5V) and 33(GND) on the ESP32?

Would you happen to know about powering ESP32 from external 5V power source?

Thank you very much.