Everyone has heard of the Raspberry Pi: for a couple of tens of dollars you get a tiny but complete Linux-based computer with a useful amount of processing power. The only fly in the ointment is that although it represents very good value, the hardware design is not completely open. The authors therefore decided to design their own single-board computer using a modern ARM Cortex-A5 CPU. Although our Linux board is not able to compete fully with the Raspberry Pi on price, it’s completely open software and hardware can be modified to your heart’s desire and customized for your educational, development or industrial application.