I tried this a while ago on M5Stack modules (ESP32). If i remember correctly, it didn't work properly using Adafruit library. The FastLED worked but it was not so easy to implement in ESP Easy with runtime configurable pin selection. I also found a small library that was specifically build for ESP3...

Just to be sure, measure the voltage on the 5V pin of that board.

yes, the voltage on the neopixel is 5.05 volts.

Perhaps this board needs a different specific pin?
Who can test for themselves, please

Hello. Thanks for a great project. I connect WS2812 to ESP-WROOM-32 board with ESP_Easy_mega_20200829_test_ESP32_4M316k firmware And it doesn't give any result. I also tried with other firmwares. When I connect these LEDs to the NodeMcu board everything is ok. I ask for help, thanks photo_2020-08-29...