It’s an Arduino shield that adds a Linux SoC, WiFi, Ethernet, and USB Host to any Arduino board from the Uno, to the Duemilanove and Mega. It is basically identical to the Arduino Yun ...

he used an Arduino Mega as a debugger, making the SBC an Arduino shield itself. Using such a common header pinout for the Z80 computer allows it to be used with a variety of readily-available ...