Fritzing is an open-source initiative to develop software to design electronic hardware. This software is designed in the same spirit as the Arduino where it abstracts away the complexity of diagramming the circuit, so the user can focus on the design itself. There will be a Fritzing sketch in the downloadable code, for all projects in this book. A Fritzing sketch is a project within the Fritzing application that represents the circuit being created. These projects can contain both circuit diagrams and code if the project includes a microcontroller like the Arduino. We will not be using the coding section of Fritzing in this book and instead will use the standard Arduino IDE, but it is good to know it is there.
The Fritzing sketches included in the downloadable code will allow you to examine the design of each project closer and enables you to adjust the design if...