I am wondering if it feasible to use the Arduino BT board with the XBee shield, and if it is the case, if it will be possible to use the BT module to communicate with phones for example while at the same time having several XBee engaged in a mesh network.
I tried to find these informations on the net but I couldn't find a clear answer.
In particular I don't understand how I will be able to use BT to communicate with devices as part of my application and at the same time use it to program the Arduino?
It would be deployed on battery on a large space to provide "ubiquitous" services to BT phones.
The problem with using '168 or '328 uCs with BT and XBee at the same time is
that there is only one uart. You would need to multiplex that UART between the
two serial devices (or setup digital pins as a serial input). The problem with
the mux is that while you are communicating with one device you are missing
any communication with the other. This may work for your application but not
for most applications.
I would use a board based on a device with more than one UART.