Unless you've been living under a rock, you've surely seen the rise of crypto-currencies in the past years. Because of the nature of current cryptos, their prices are always fluctuating. I wanted a way to keep track of that. That's where the ESP8266 and the NodeMCU µController come to the rescue. It's a cheap and easy way to access the internet, with all the capabilities of a µController. This project will make use of the following principles :