Shield A for Arduino Uno had been designed by Robert Sedak, Vladimir Mitrović and Petar Jurković. Each of them have many years of experience in programming micro controllers, as well as teaching primary and secondary school students how to program micro controllers. We noticed that lectures with more than five components take too much time for assembling on breadboard and in many cases debugging wiring. With that in mind we decided to join ourexperience and ideas to design a Arduino Uno compatible shield which will cover most of input/output examples. Shield A is compatible with BASCOM-AVR(C) and Arduino IDE.
We have released it under the Creative Commons - Attribution - Share Alike license.
In the examples folder you will find 40 different examples in two versions: standard Arduino IDE commands (for primary school students), and using register manipulation (for secondary school students).
We hope you will enjoy it.
Project files: https://github.com/rsedak/Shield-A