ESP8266 Advanced IOT APPLICATIONS using programming Nodemcu with Arduino ESP8266[Wifi modulo] ESP8266 today we’re going to build something exciting together and you guessed right it has to do with the Internet of Things (IoT). As we do more and more IoT business for our clients we, as software developers, also get more and more into the hardware part of the equation. It’s an important part when you truly want to understand and solve a problem.