Owing to the advent of digital electronics and the Arduino micro-controller many things can now be easily brought to life be it at home or at any other place in the world.It only requires one's own imaginative thinking to conjure up such creativity.Contained in these chapters is a road map for designing a crosswalk system controlled by an Arduino Uno micro-controller.The system incorporates the concept of passive pedestrian detection to sense the presence of pedestrians and in turn automatically goes on to operate a set of given traffic lights, among many other exciting components.This book is mostly meant to help shed some light on all those young aspiring system designers out there hoping to one day venture into the world of digital electronics.