Releases: ArtursGailis1995/esp8266-fastled-webserver
Releases · ArtursGailis1995/esp8266-fastled-webserver
NodeMCU ESP8266 D2 pin 300 leds
This release is compiled with support for NodeMCU module and using D2 pin on the board for data communication with WS2812b LED strip.
You can use ESP8266 flasher to upload both sketch and SPIFFS file system.
If it does not work, try compiling and uploading yourself from the source code.