XBee Coordinator API <—> XBee End Device AT

Hello,

I'm looking to connect several XBee End Devices in AT mode to a Coordinator in API mode. The reason for this is that I'd like to connect an XBee Module to a device which already outputs RS232 data (a Honeywell Rondostat HR20 thermostat) so there's no need for a µC inbetween. The Coordinator should be in API mode because I want to distinguish the transmissions of different XBee modules, hence I need access to the transmitted device ID.

Is this possible and has anyone done this before?

Thank you!

Till

Yes it is perfectly possible. AFAIK the distinction between API and AT/transparent is how the serial interface is interpreted by the xBee. The xBee them-selves only talk the ZigBee protocol from one node to another over the air hence it does not matter whether half of them have API firwmares and the other half has AT firmwares.