GitHub - kiranshashiny/Wemos-D1-mini-Blink-LED: This is my first blog on WEMOS D1 mini, and what were the various parameters like board manager etc are listed here.
Blink LED on ESP8266 | ezContents blog
LED Blinking using ESP8266 - NodeMCU
Android Basics and User Interfaces
Tutorial 1 - Blinking the Arduino builtin LED
ESP32 LED Blink Example | Circuits4you.com
nodemcu - Does the Node MCU v3 (LoLin) not have a builtin led? - Arduino Stack Exchange
Getting Started with ESP32 using Arduino IDE - Blink LED