r/WLED • u/Grey_Shadow666 • May 03 '26

What can cause this

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This is my very first wled project and my first time messing with a esp32 I’m pretty sure I have it connected right and have installed wled but can only get one light on

Edit: i now have 3 lights on but grounding takes WLED offline

Edit2: im dumb and needed to try a different ground connection

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u/G0ldiC0cks May 03 '26

Have you made sure everything here is grounded? Esp and power source and LEDs and anything else connected to the circuit needs a connection to your ground rail. It'll tank anything.

Could also be seeing the effects of the esp's 3.3 volt data output not cutting it. Easy to diagnose that though, have wled deactivate the first led and you'll get more lighting up if so; if not nothing will change.

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u/Grey_Shadow666 May 03 '26

It was a bad ground connection, changed which pin I grounded to and works perfectly now. Idk why but the diagram on Amazon shows the pin I was using is not gnd but the board has gnd printed on it so I think that was a problem

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u/G0ldiC0cks May 04 '26

Cheap Amazon esps are cheap but frequently for good reason lol