I've got some experience with proprietary RF protocols on various uC's, however I'm looking at zigbee on an ATmega128RF for an upcoming project.
I need to support 250-300 nodes, and just so some very simple low speed GPIO on each of them from a central controller. All nodes are quite close together, ie within 10-15m, and low power isnt at all important. I'd like to get this up and running quickly, so I'm looking at pre-made stacks.
Do you guys have any comment on zigbee's suitability for such a network?
Thanks for any advice.