I have actually reap 3 numerical values (3 sensors) from a remote XBee module and then manipulate these 3 signal with an Arduino card attached to another XBee module. To do this, I chose to use the IO line passing because it proved the easiest. My problem is this: for the XBee transmitter, I set:
ATID 3001 ATDL 2 ATMY 1 ATIU 1 / / to activate the IO option ATD0 3 / / where is plugged a pushbutton ATD1 3 / / where is plugged another pushbutton ATD2 3 / / where is plugged proximity sensor (presence)
For the XBee receiver (the one connected with the arduino board):
ATID 3001 ATDL 1 ATMY 2 ATIA 1 ATD0 4 ATD1 4 ATD2 4
Where I'm stuck is on the Arduino programming. Which command is used to determine the change of state of xbee remote? because I want to know if the states of the sensors on input are high or low.