first, english is not my native language so perdon me if i do some mistake.
okay lets see, im doing a control access project with a RFID module, the idea is very simple, i have a coordinator and four end devices.
the coordinator has a Arduino UNO, Xbee shield, Xbee serie 1 and of course the RFID module.
the end devices has a Arduino FIO, xbee serie 1 and a 2 channel relay board.
how it works ??? (at least in my mind)
The user comes validates a card in the coordinator the coordinator send a character for example "A" and a end device recibes the "A" and booom activates the relay board.
Can i do that ? i mean like the picture ? if i can whats is gonna be the configuration for the end devices ??