I am trying to create a sensor logging system that uses a Arduino microprocessor with a 900mhz Xbee to transmit sensor data to a raspberry pi, then use a cellular Xbee to send that data to my cloud server/rdbms. I am sure that someone has done this many times, but I have not been able to find this type of hardware configuration. IS it possible to have two modules stacked on a pi? I would appreciate any direction you pros you afford me.
Thanks.