There are some devices using AVR microcomputer.

- adc
   - acceleration_sensor
       a Device to display a value from 3-axis acceleration sensor
         - LCD: SC1602BS
         - 3-axis acceleration: Freescale MMA7361L

- air
   libraries for PC-side applications

- tumblr
   - unread_items
       a Device to display the num of unread items on your tumblr dashboard on LCD.

- melody
   - piezoelectricbuzzer
       a Melody device with piezoelectric buzzer