A simple programming problem

I am trying to use X-CTU to make a program. I just want xbee to send signals only when the input changes. How can I realize this?

by the way, the xbee chip I use is XB24-AUI-001…

Hello cjm75,

The XBee you have seems to be non-programmable, so it wouldn’t be possible with it. You should get a programmable XBee or drive the non-programmable with an arduino, pic or another microcontroller.