Update USB.cpp

This commit is contained in:
me-no-dev
2020-09-23 13:48:28 +03:00
parent 2656452d04
commit bbcc624c97

View File

@ -29,7 +29,7 @@
#define USB_PRODUCT ARDUINO_BOARD
#endif
#ifndef USB_SERIAL
#define USB_SERIAL ""
#define USB_SERIAL "0"
#endif
extern "C" {