PES-2401 can be used by steps as follows.
It is not possible to use PES-2401 alone. Please be sure that connection to a PHPoC board is required.
PHPoC Debugger is a software which is used for configuring PHPoC products and developing PHPoC script. It is requried to install this software on your PC because PES-2401 must be controlled by PHPoC.
The SPC library is for smart expansion boards such as PES-2401. This library makes it easy for you to use smart expansion boards. Refer to the manual page of SPC library for more information.