Core module provides an access to a coreD functionality.
CoreD implements and support the abstract model of gateways/devices/items to provide a universal way to control smart devices.
Gateway represents a communication domain or communication technology, like ZWave, Zigbee, Bluetooth, TCP/IP, SPI, RS232, etc.
Device represents a smart device to be controlled/monitored, like smart outlet, smart lock, smart switch, etc.
Item represents a virtual control point [vcp], like turn on/off, set some value, get current value, etc. Such virtual control point [pcp] gets mapped to a physical control point like electrical relay, shift register, AC/DC meter, etc.