Xbee Communication Problem

Hi, I have two xbee pro.
I cant use them. I connect them to mcu’s UART but they can’t communicate.

Should I change the firmware for the first use?

Or how can I use it forthe first time?

I only want to send ‘A’ from the firs MCU and take ‘A’ from the other side…

Back ofthe xbee;
1.
0013A200
405382AF
XBP24-AWI
001-revB
2008-07-17-06

0013A200
405382AD8
XBP24-AWI
001-revB
2008-07-17-06

Message was edited by: fatal1ty89

Message was edited by: fatal1ty89

The XBee radios that you have should need no configuration or firmware change for them to communicate to each other out of the box. Since you are connecting the radios to MCUs you need to check your required connections. Only the DIN DOUT VCC and GND pins are necessary to communicate between the modules bi-directionally.

The module will only accept a VCC voltage between 2.8 and 3.4V. You should not exceed this voltage. The DIN pin can only accept voltages up to VCC as well. If you are using a 5V micro, then the voltage of the inouts to the radio need to be dropped from 5V to 3.3V.

Ok I’m using level converters. There is no problem for voltages. Also when I connect the xbee to pc seriport with max232, The XCTU software can’t find anything. I tried all baudrates…
Also I send +++ but xbee didn’t give any response…

hi,

please check whether you have selected the right com port as some computers have more than one com port. out of the box xbee modules usually have baud rate set to 9600 as their default.

if xbee is communication with XCTU thru rs232 then you can do a simple loopback test to verify the modules are working or not.

It’s driving me crazy Ican’t understand.
I check the port alot, but I can’t get any response.
Can I get the options of Xctu except the serialport setups.

I tried this circut but I can’t get anything.
http://img150.imageshack.us/my.php?image=myxbeecircuitbz6.png

What mcu are you using and what language are you programming in. Within XCTU on the PC settings tab, select the enable API checkbox and press the Test/Query button. If it says “Unable to communicate with modem” I say to call digi and talk with someone to walk you through some troubleshooting. If XCTU responds with some strange numbers for the module then you either have a baud rate or some other problem.