In this article I argue that it is important to develop experiential prototypes which have multi-tasking capabilities. At the same time I show that for embedded prototype software based on the popular Arduino platform this is not too difficult. The approach is explained and illustrated using technical examples – practical and hands-on, down to the code level. At the same time a few helpful notations for designing and documenting the software are introduced and illustrated by the same examples. Finally a few case studies of the technical approach are listed
