SphereWare is the AlphaSphere and AlphaSphere Elite Firmware.
AlphaSphere uses an Atmel Atmega32u4 MCU clocked at 16Mhz.
To build this software you will need the avr-gcc toolchain.
SphereWare is licensed under the GPLv3 or later. See GPL3.txt for details.
SphereWare uses the LUFA USB stack which is licensed under the MIT license.