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The AVR Butterfly is a self-contained, battery-powered demonstration board running the ATMEL AVR ATmega169V Microcontroller. The board includes an LCD screen, joystick, speaker, serial port, RTC, flash chip, temperature, light & voltage sensors. The board has a shirt pin on its back and can be worn as a name badge.
The AVR Butterfly comes preloaded with software to demonstrate the capabilities of the microcontroller. Factory firmware can scroll your name, display the sensor readings, and show the time. Also, the AVR Butterfly has a piezo buzzer that can reproduce sound.
The AVRButterfly demonstrates LCD driving by running a 14-segment, 6 alpha-numeric character display. However, the LCD interface consumes many of the I/O pins on the Butterfly, leaving relatively few for users to wire into a more elaborate project.
The Butterfly's ATmega CPU is capable of speeds up to 8Mhz, however it is factory set to 2Mhz in order to preserve battery life. A pre-installed bootloader program allows the board to be re-programmed with a RS-232 plug and some wire. The processor speed can be reset with an AVR programmer, and the 2K bootloader memory can be reclaimed.
The factory programmed source code is available for ICC and GCC compilers.
Butterfly Specific Sites
- Butterfly Beginner Site
- Butterfly & Beginner's Forum
- Butterfly Forum (Yahoo)
- Atmel's product page
- Getting Started Guide
Butterfly Specific Projects
References
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