A step by step introduction to Arduino, programming, circuit construction, and the physics of circuits for use in a high school or undergraduate physics course.  The book has many helpful interactive images to building the projects, explanations and step by step instructions on the programs, and basic circuit analysis and whole chapters on resistance, current, voltage, and Ohm’s law.  Section questions and projects are linked to Google Docs for students to answer and submit to instructors. Also, hashtags for showing off work via social networks are included in the assignments.