I am trying to use the XBee modules to connect a LPC4088 on a rotating scanner, that has 2 slip rings for the devices on the rotating part, to a base module that will be used to make the readings from the scanner available to PC's on the network. I have had to install EhternetInterface and mbed-rtos to get sockets capability on the base module. My problem is that this has locked up the XBee initialisation code. From prints I have added it goes into the following line and never returns:- XBee::XBeeError err = xbee.init(XBee::EndDevice, "EAEA");