visi 4dViSi provides an easy method of desning complex Graphics User Interface applications. The user drags and drops objects on his simulated screen and the code isAPPLICATION NOTES 4D-AN-00017 Page 6 of 38 .au Note: The latest version of the ViSi-Genie-Arduino library (as of July 2014) is The library version can be checked by