Be sure to install the Adafruit PWMServoDriver provided first, before uploading this file to an arduino.

For the most recent library, see https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library

To install Adafruit PWMServoDriver

1. Download from the Adafruit PWMServoDriver library from github (or use the one provided in this repository).
2. Rename the uncompressed folder Adafruit_PWMServoDriver.
3. Check that the Adafruit_PWMServoDriver folder contains Adafruit_PWMServoDriver.cpp and Adafruit_PWMServoDriver.h
4. Place the Adafruit_PWMServoDriver library folder your arduinosketchfolder/libraries/ folder.