It’s a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip.

We’re not entirely sure what went wrong with the old control center, but considering a replacement would have cost nearly 25,000 ... is handled by an Arduino Mega 2560, which hooks up to what ...