The Prop Dropper is a “quick and dirty” Halloween project you can probably put together in a single night with just a small microcontroller, a couple of servo motors, and a few bits and pieces from the ol’ junk box. Designed to detect the presence of a person, rapid-deploy a small prop, display it for a moment, then wind it back up out of view, ready for its next victim! Purchase The Halloween Prop Dropper in our Web Store!
Read the October 2009 column, Personal Robotics to learn how to build your own Halloween Prop Dropper
Questions on a synthesis circuit, IC chips, grounding problems, resistor values (for light/dark), power supplies, and Kodak photoresist and developer are answered. Read More...