Hardware

Hardware Designs

The primary reference hardware design is the Arduino Uno QRO design, current in Revision A. This design will serve as the basis for other designs, including the Arduino Mega and QRP variants.

Note that while an Arduino Uno is specified, other Arduino variants or “bare” Atmel AVR chips such as the ATmega328 or ATmega2560 can be used to save costs, conserve power, or create a more compact unit, especially if certain features are not needed, such as the computer USB interface.