simple_step: stepper motor control software consisting of 1. firmware for the Atmel at90usb1287 microcontroller providing position and velocity control for stepper motors via clock and direction commands. 2. a python api enabing communication with the at90usb1287 microntroller via USB. 3. a command line interface which enables stepper motor control from the command line. Installation instructions can be found in the INSTALL file. Author: William Dickson simple_step may be freely distributed and modified in accordance with the GNU Lesser General Public License.