Getting Started with the ESP8266. One of the drivers behind the explosive… | by Alasdair Allan | Medium
Blinking the LED on NodeMCU through OTA Update | Arduino, Ota, Microcontrollers
ESP8266 Arduino tutorial - IoT WiFi module thorough review with example
Blink LED on ESP8266 | ezContents blog
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.
Getting Started with WeMos D1 Mini | Microcontroller Tutorials
How to Flash ESP-01 Firmware to the Improved SDK v2.0.0 - Projects