Learn to quickly build your own electronic gadgets that monitor, measure, and react to the real world -- with no prior experience required! This easy-to-follow-guide covers the programming and electronics essentials needed to build fun and educational sensor-based projects with both Arduino and Raspberry Pi. "Arduino and Raspberry Pi sensor projects for the evil genius" features step-by-step DIY projects that use inexpensive, readily available parts. You will discover how to use touch, temperature, moisture, light, sound, and motion sensors -- even sensors that detect the presence of a human!