The AVR Butterfly evaluation kit is designed to demonstrate the benefits and key features of the AVR microcontrollers. It is a stand alone microprocessor module that can be used in numerous applications.
The AVR Butterfly demonstrates:
The AVR architecture in general and the ATmega169 in particular
Low Power Design
The MLF package type
Peripherals; LCD controller, Memories , Flash, EEPROM, SRAM, external DataFlash
Communication interfaces; UART, SPI, USI.
Programming methods: Selfprogramming/ Bootloader, SPI, Parallel, JTAG
Analog to Digital Converter (ADC)
Timers/Counters: Real Time Clock (RTC), Pulse Width Modulation (PWM)
It also serves as a development kit for the ATmega169, and can be used as a building block in other products