These days it seems as if everybody talks about the internet of things (IoT). With a cheap Arduino, Raspberry PI (or another microcontroller) every developer has the power to control the real world. Suddenly confronted with resistors, digital inputs, analog interfaces and a weird bread board full of holes – a developer is reminded that the world of hardware can be confusing and sometimes downright frustrating. The good news is that an electrical engineering degree is not required in order to understand and build electronic circuits. In this talk we’ll cover the basic rules that govern the electronics world (and why they matter). We’ll talk about capacitors, resistors and other components and how to read circuit diagrams in order to understand how to use them.