The steps for using PES-2403 are as follows.
PES-2403 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-2403 must be controlled by PHPoC.
The SPC library is for smart expansion boards such as PES-2403. This library makes it easy for you to use smart expansion boards. Refer to the manual page of SPC library for more information.