The Propeller Experiment Controller: Automation for the Comparative Analysis of Behavior in Research and Teaching by Christopher A. Varnon, Converse College and Charles I. Abramson, Oklahoma State University Chapter One: Introduction The purpose of this document is to provide detailed descriptions of the Propeller Experiment Controller (PEC). The PEC is free, open-source software for the Parallax Propeller microcontroller (Parallax Inc.; Rocklin, California) that is designed to