The steps for using PES-2405 are as follows.
PES-2405 cannot be used alone. Be sure to connect to PHPoC board.
PHPoC Debugger is a software which is used for configuring PHPoC products and developing PHPoC script. It is required to install this software on your PC because PES-2405 must be controlled by PHPoC.
The SPC library is for smart expansion boards such as PES-2405. This library makes it easy for you to use smart expansion boards. Refer to the manual page of SPC library for more information.