They also only implement serial sending (so the Arduino receives) so far, although they mention the next step would be to build the other side of the connection.

A MAX7219 drives the display, and the brains are an ATmega8. It’s straightforward to send new values: a start byte, a CRC, the data to display, and an end byte.

The CleO Comes complete with 20 tutorials and 20 projects allowing you to learn more about the Arduino platform and using the TFT display to show your data and results as well as any navigation ...