visi 4dArduino Library for 4D Systems ViSi-Genie Environment. Information. This library provides hh level functions for the Arduino, to ease communication with 4D Systems modules when usingAppNote No. Title Software Supported Processor(s) Topics; 4D‑AN‑00001: ViSi‑Genie: Getting Started with PICASO Displays: ViSi‑Genie: PICASO: 4D‑AN‑00002