Yes, I change the mode of receive xbee, when the xbee change to sleep, automatically the led turn off, when I change this parameter this module not stay on sleep mode and the led stay on every time when I need. I know the protocol zigbee one of this avantage is the low power used, but in this form I force to used more energy because the microcontroller not stay on sleep mode. If I could maintain on any pin of this xbee. and the other parts continue to sleep, if possibly??