This microcontroller is pre-programmed with our dual serial motor controller firmware.
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.