Atmel ATAVRBFLY Data Sheet

4271C–AVR–04/05

The following resources are available on the Butterfly kit.

! ATmega169 (MLF-package)

! LCD-on-glass display with 120 segments, for demonstrating the ATmega169 LCD 

controller.

! Joystick, 4-directions with centre push, as user input

! Piezo element, to play sounds

! 32kHz Xtal for the RTC 

! 4 Mbit DataFlash, for data storage

! RS-232 level-converter, for communicating with off-board units

! Negative Temperature Coefficient (NTC) thermistor, to measure temperature

! Light Dependent Resistor (LDR), to measure light intenisty

! 3V button cell battery (600mAh) to provide operating power

! JTAG emulation, for debugging

! USI-interface, for additional communication interface

! Supported by AVR Studio 4.

! Pre-programmed with a demonstration application, including bootloader

! No external hardware is required to reprogram the AVR Butterfly

The ATmega169 in the kit controls the external peripherals, and can also be used to do
voltage readings from 0 to 5 volts. The kit can be reprogrammed a number of different
ways including serial programming through the JTAG port. Most users will prefer to use
the preloaded bootloader with AVR Studio to download new code. 

For more information about the ATmega169, see the datasheet at 

www.atmel.com

.