Vinculum Customizer is a handy tool to customize some of the standard features of VNC1L firmware, such as command modes, UART options, firmware options, USB slave mode settings, code page selection, and version code. VPLAY is used in conjunction with the VMUSIC2 module and a TTL232R cable to provide a GUI for playing audio files. VPROG is the VNC1L programming utility that downloads firmware onto a VNC1L device using the FTDI TTL-232R-3V3 cable. A COM port version is also available.