Onboard LEDs? NodeMCU's got two! – Low voltage. Mostly harmless...
NodeMCU Breathing LED with Arduino IDE – Arduining
ESP8266 : Make an LED blink from the Arduino IDE - Hackster.io
ESP8266 Arduino-Core Interface – LED | ArunEworld
ESP8266 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
ESP8266 - Control an External LED Over Internet - Arduino Project Hub
ESP8266 based board for WS2812B RBG Led control 🙂 Color changing through IoT app is also possible due the built-in Wi-Fi hardware in the ESP module. : r/esp32
ESP8266 pinout reference and how to use GPIO pins
ESP8266 NodeMCU – Blinking a LED
Testing Lolin NodeMCU V3 esp8266 – Enrique Latorres
NodeMCU ESP8266 — ESPHome
ESP8266 Notes | MicroBlocks Wiki
nodemcu - Does the Node MCU v3 (LoLin) not have a builtin led? - Arduino Stack Exchange
Arduino-er: Blink NodeMCU on-board LED using Arduino IDE with ESP8266 core for Arduino, and more examples
LED Blinking using ESP8266 - NodeMCU
NodeMcu (ESP8266) Tutorial A-02: Blinking internal LED - YouTube
ESP32 LED Blink Example | Circuits4you.com
ESP8266 Arduino Core | How to blink In-build Blue LED in ESP8266 Module? - YouTube
Basic ESP8266 NodeMCU tutorial: Breadboard, Pinout and Dimmable LED with Pulse-Width Modulation (PWM) - Mechatronics Blog
ESP8266 Based Webserver to Control LED from Webpage
Tweaking4All.com - Getting started with the ESP8266 as an Arduino replacement
Insight Into ESP8266 NodeMCU Features & Using It With Arduino IDE (Easy Steps)
Blink external LED using ESP8266 NodeMCU – IOT – Building Reliability
