# NodeMCU V3 No LEDs Lighting up

**URL:** <https://wled.discourse.group/t/nodemcu-v3-no-leds-lighting-up/9292>\
**Category:** Issues\
**Created:** [September 25, 2023, 11:42am UTC](https://wled.discourse.group/t/nodemcu-v3-no-leds-lighting-up/9292 "2023-09-25T11:42:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jonasm](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/jonasm/32/5818_2.png) [@Jonasm](https://wled.discourse.group/u/Jonasm)\
**Post date:** [September 25, 2023, 11:42am UTC](https://wled.discourse.group/t/nodemcu-v3-no-leds-lighting-up/9292/1 "2023-09-25T11:42:04Z")

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Hello everyone,

Yesterday I wired my new LED strip with a NodeMCU V3 ESP8266 on which I have previously flashed WLED.  
My problem now is that I can not control the LEDS.  
The WLED webinterface I can reach without problems but the LEDS give nothing in feedback.  
My assumption was that the strip is broken.  
I have then tried a NodeMCU v2 and with this it works fine.  
A defect of the NodeMCU v3 I exclude because I have already tried 3 pieces.  
The wiring was in all cases VIN, G and D4.  
What else can I try or has something changed in version 3 of ESP which could be related to my problem ?

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**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\
**Post date:** [September 25, 2023, 2:59pm UTC](https://wled.discourse.group/t/nodemcu-v3-no-leds-lighting-up/9292/2 "2023-09-25T14:59:39Z")

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If your strip works with a different MCU, it’s likely you are assigning the the wrong GPIO for the V3 board.

Try a different pin and GPIO assignment, you’ll have to research what the V3 board assignments are.

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<div class="post-metadata">

**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://wled.discourse.group/u/Jinx)\
**Post date:** [September 25, 2023, 8:03pm UTC](https://wled.discourse.group/t/nodemcu-v3-no-leds-lighting-up/9292/3 "2023-09-25T20:03:44Z")

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‘d4’ is likely gpio 2. Check your config in LED Preferences and see if you have it set to gpio 2
