Onboard LEDs? NodeMCU's got two! – Low voltage. Mostly harmless...
NodeMCU Basic Project-Blink a LED - Instructables
![Program ESP8266 with Arduino UNO and blink built-in ESP LED [Solved] - Project Guidance - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/2/8/7/287ee9a33bf323cc3c3e164c7754daa72904f9d7.jpeg "Program ESP8266 with Arduino UNO and blink built-in ESP LED [Solved] - Project Guidance - Arduino Forum")
Program ESP8266 with Arduino UNO and blink built-in ESP LED [Solved] - Project Guidance - Arduino Forum
ESP8266 D1 Mini V2 ESP-12F WiFi Module - ProtoSupplies
LED Blinking using ESP8266 - NodeMCU
ESP8266 NodeMCU PWM with Arduino IDE - Dim LED (Analog Output) | Random Nerd Tutorials
Tweaking4All.com - Getting started with the ESP8266 as an Arduino replacement
Basic ESP8266 NodeMCU tutorial: Breadboard, Pinout and Dimmable LED with Pulse-Width Modulation (PWM) - Mechatronics Blog
Remote control LED with ESP8266 and MQTT | by EMQ Technologies | Medium
ESP8266 Based Webserver to Control LED from Webpage
Blink LED on ESP8266 | ezContents blog
Arduino-er: Blink NodeMCU on-board LED using Arduino IDE with ESP8266 core for Arduino, and more examples
ESP8266 Blink built-in LED – IOT – Building Reliability
LED Blinking using ESP8266 - NodeMCU
NodeMcu (ESP8266) Tutorial A-02: Blinking internal LED - YouTube
nodemcu - Does the Node MCU v3 (LoLin) not have a builtin led? - Arduino Stack Exchange
Basics — Micropython on ESP8266 Workshop 1.0 documentation
NodeMCU ESP8266 Pinout, Specifications, Features & Datasheet
ESP8266 NodeMCU Digital Inputs and Digital Outputs (Arduino IDE) | Random Nerd Tutorials
ESP8266 NodeMCU – Blinking a LED
An Introductory Guide to ESP8266, ESP-XX modules and NodeMCU pinout - Mechatronics Blog
Testing Lolin NodeMCU V3 esp8266 – Enrique Latorres
NodeMCU Arduino core 2. LED On/Off from WebBrowser | alselectro
ESP8266 Arduino Core | How to blink In-build Blue LED in ESP8266 Module? - YouTube
