AVAILABLE DEMO SOFTWARE:
There are numerous projects available in the software section of PIC32-PINGUINO
and PIC32-PINGUINO-OTG web pages:
https://www.olimex.com/Products/Duino/PIC32/PIC32-PINGUINO/
https://www.olimex.com/Products/Duino/PIC32/PIC32-PINGUINO-OTG/
Page 16