WLED Not working as expected

Issues
1

Hi,
I am completely new to WLED having bit of a trouble connecting my WS2812 LED to ESP32 - WRooM32. any help is much appreciated I have connected led +5v and gnd to Vin & gnd in esp32 and data to D4 pin and powered esp with USB cable connecting to my laptop

I Have a 5 mtr strip and can see few LEDs lit up. when i change my LED count to 150 and saved the configuration, but i don’t see a change in LEDs strip and non of the effects / colour changes taking effect.
When i click Power on & off in wled local blue led in my ESP32 responding but not my LED strip.

Attaching my ESP 32 Pinout

ESP32-Pinout-1
ESP32-Pinout-11000×518 186 KB

what could be the possible reason and how to resolve it

2

You can not power that many LEDs using the usb port. You need another power supply. Once powering them from another power supply you will need to raise or disable the brightness limiter in Led Preferences. 150 LEDs will likely need power injection.

https://kno.wled.ge/basics/getting-started/

3

@Jinx thank you for your inputs, I stripped the LED to 30 LED and tried and it is working as expected.
however Sound reactive is not working. I am using MAX4466 mic and connected to ESP 32 D35 for input and 3v3 and gnd for power. but LEDs are reacting to sound.

any guidance much appreciated.

4

Glad it’s working.

For sound reactive you may find these pages helpful:
https://mm.kno.wled.ge/WLEDSR/Analog-Audio-Input-Options/
https://mm.kno.wled.ge/soundreactive/Sound-Settings/

Also note Max4466 is not recommended as it is susceptible to noise from the 3.3v line. The Max9814 is a better choice if sticking with analog.

I don’t know what ‘D35’ is. You need to see what GPIO that corresponds to by looking at a specs sheet for your board. Most times on Esp32’s that # is = to the GPIO # but not always.