Modifications

The Romi 32U4 Control Board has several expansion areas (primarily in three groups near the front left and middle and back right edges) that break out all of the general-purpose I/O lines from the ATmega32U4 microcontroller and the Raspberry Pi. The board also provides access to various power inputs, outputs, and control pins, and it makes a few stand-alone buses available to help you make connections. The following diagrams identify the locations of these pins and the hardware associated with them; they are also available as une [https://www.pololu.com/file/0J1261/romi-32u4-control-board-pinout-power.pdf version PDF imprimable] (1Mio pdf). For more information about the ATmega32U4 microcontroller and its peripherals, see Atmel’s ATmega32U4 documentation.

The Romi 32U4 Control Board has several expansion areas (primarily in three groups near the front left and middle and back right edges) that break out all of the general-purpose I/O lines from the ATmega32U4 microcontroller and the Raspberry Pi. The board also provides access to various power inputs, outputs, and control pins, and it makes a few stand-alone buses available to help you make connections. The following diagrams identify the locations of these pins and the hardware associated with them; they are also available as une [https://www.pololu.com/file/0J1261/romi-32u4-control-board-pinout-power.pdf version PDF imprimable] (1Mio pdf). For more information about the ATmega32U4 microcontroller and its peripherals, see Atmel’s ATmega32U4 documentation.

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