Omega 2 board is the development boards from Onion. It comes packed with built-in Wi-Fi and on-board flash storage. You do not have to worry about buying Wi-Fi dongles or installing operating system images onto external SD cards.
Using the Omega2 is just like using a desktop computer. It has built simple and intuitive apps to interact with the Omega2. It also have an App Store where you can discover even more apps. The Omega2 runs the Linux Embedded Development Environment (LEDE) operating system, a distribution based on OpenWRT. You can think of the Omega2 as a tiny Linux server with Wi-Fi.
The Omega2 can be easily added to your existing Arduino projects. Another important benefit of running Linux is that the Omega2 can be programmed with whatever language you want.
Omega 2 Specs
The Expansion Dock powers the Omega2, it breaks out all of the GPIOs, and allows you to expand your Omega2 with expansion modules. It has a USB-to-serial chip on-board, allowing you to access the Omega2 easily through the serial terminal.
The Mini Dock provides power to the Omega2, and it allows you to plug in USB devices