At only 0.91" x 0.91", the Pololu micro serial servo controller is the smallest serial servo controller you’ll find. With individual speed and range control of eight servos and over 12 bits of resolution, this tiny device offers a host of advanced features at a surprisingly affordable price.
Documentation and other information
Pololu Serial Transmitter utility for Windows (Printable PDF: pololu_serial_transmitter.pdf)
A simple serial transmitter utility for Windows that lets you transmit sequences of bytes at a selectable baud rate to a selectable COM port. This program can be conveniently used to send commands to our serially controllable devices.