The YÃºn rev. 2 with the power of a Linux based system that enables advanced network connections and applications. Connection to your WiFi or wired network is simple thanks to the YÃºn Web Panel and the dedicated ''YunFirstConfig'' sketch. The Web panel allows you to manage your shield preferences and upload your sketch. The YÃºn rev. 2 uses the Bridge library and so extends the board capabilities by using the Linux processor. As always, every element of the platform Â hardware, software, and documentation Â is freely available and open-source. This means that you can learn exactly how it's made and use its design as the starting point for your own projects.