A good way to level-translate from 3.3V ESP8266 to WS2812 on 5V is to - FastLED Archive - Maker Forums
ESP8266 WIFI ESP-01 WS2812 RGB LED Wireless Remote Switch Controller Module for Arduino Smart Home NodeMCU with 16bit Light Ring 5050 RGB LED - Newegg.com
Esp8266 For WeMos D1 Module WS2812B RGB Shield For WeMos D1 Mini ESP8266 Module Board Wiht Pins Esp8266 - AliExpress Electronic Components & Supplies
arduino ide - WS2812B only works while I measure the voltage - Arduino Stack Exchange
ws2812 | Random Nerd Tutorials
led - WS2812B not fully working with NodeMCUv2 [ESP8266] - Arduino Stack Exchange
Solved] External power issues on NodeMCU - ws2812B works, ws2813 doesn't - LEDs and Multiplexing - Arduino Forum
Driving WS2812 LED strips with the ESP8266 | esp8266hints
WS2812 LED + ESP8266 + Blynk - Everything ESP8266
Cheating At 5V WS2812 Control To Use 3.3V Data | Hackaday
MicroPython: WS2812B Addressable RGB LEDs with ESP32 and ESP8266 | Random Nerd Tutorials
LED strips carrying another dimension with WLED and LedFx, NodeMCU y Home Assistant | Blog Bujarra.com
Hardware Setup | Ambient light Application for Android
NodeMCU & WS2812b, not lighting up · Issue #197 · Aircoookie/WLED · GitHub
ESP8266 NodeMCU first WS2812 LED lights up green - Arduino Stack Exchange