Like our A-Star 32U4 programmable controllers <small>([https://www.pololu.com/category/149/a-star-programmable-controllers lien Pololu])</small>, the Romi 32U4 Control Board features an integrated, USB-enabled ATmega32U4 AVR microcontroller from Atmel, clocked by a precision 16 MHz crystal oscillator. This is the same microcontroller and clock frequency used in the Arduino Leonardo {{polpl|2192}} and {{pl|451|Arduino Micro}} {{polpl|2188}}. | Like our A-Star 32U4 programmable controllers <small>([https://www.pololu.com/category/149/a-star-programmable-controllers lien Pololu])</small>, the Romi 32U4 Control Board features an integrated, USB-enabled ATmega32U4 AVR microcontroller from Atmel, clocked by a precision 16 MHz crystal oscillator. This is the same microcontroller and clock frequency used in the Arduino Leonardo {{polpl|2192}} and {{pl|451|Arduino Micro}} {{polpl|2188}}. |