* What is IoT
    * Preparations
    * What is IoT
    * IoT is just a concept
    * What is an IoT Device?
    * What is an IoT Device?
    * IoT Devices - Example chips
    * ESP8266 Specifications
    * ESP8266 Power usage
* NodeMCU
    * NodeMCU hardware
    * NodeMCU hardware
    * ESP8266 software layers
    * ESP8266 + Arduino
    * Arduino IDE
    * Generic Arduino APIs
* Assignment: `blink-a-led`
* Lecture: MQTT
    * MQTT
    * Device and application architecture with MQTT
    * MQTT Example
    * MQTT - The protocol
    * MQTT - The protocol - MQTT Topic
    * ESP Arduino APIs
    * Connecting to a Wi-Fi
#include <ESP8266WiFi.h>
    * MQTT on Arduino
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
    * MQTT on Arduino
    * MQTT on Arduino
    * MQTT on Arduino
    * MQTT on Arduino
* Assignment: `mqtt-with-button`
    * Content