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How to check xbee module using max232 and hyperterminal?

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shahid_c

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hello all,
i want to check xbee module(digi's xbee s2) for that i connected xbee (pin:1_vcc(3.3v),2_TX,3_RX,10_gnd) to pc through max232.and connected using hipper terminal(9600).but the system not responding i can't type anything in the window.i am using one xbee (the other end is free,ie..no second TX-RX xbee) .is two xbee necessary for checking?
how can i check my xbee through max232 & hipper terminal?
please help me.
 

Re: to check xbee module

One possibility is to have a hardware issue. If you used max232's datasheet circuit, then check all connections are OK.
Then there might be a configuration problem between PC and xbee. For example is the baudrate the same on both sides?
Then it could be a problem with the serial cable. You could test this, implementing the loopback test:

https://www.edaboard.com/threads/222911/

Finally, it could be a programmatical issue, that is you fail to send and receive because of a coding error.

In any case check out the following thread, I hope it will help you.

https://www.edaboard.com/threads/226388/
 

hello alexx,
thanks :-D.i did that loop test and its ok. i got my echo.my max232 connection are ok.but when i connecting xbee i can't type.is my xbee bad?
 

The next step I would do: I would go inside my code and locate the function that sends byte to UART. I would then see with the oscilloscope, are any pulses produced on tx pin? If yes, then that's the good scenario. First verify that the pulses are produced correctly (voltage level, slew rate etc). If those are OK, just locate the problem between tx pin and max232. If no, then search the UART part of your code, there must be something wrong. By the way post your code, so people who use xbee can examine this code.
Question: doesn't digi provice some ready to go examples on how to use UART with xbee modules?
 

hai,
i am not connecting my xbee to any micro controller,it is connected to pc through max232.inorder to configur (check) my xbee i would enter in command mode (by typing +++),is n't it?but i cant type any thing in the terminal.if my xbee is bad their is an possibility for this. i am checking xbee individually.is it necessary to check in pair?
 

shahid_c said:
hai,
i am not connecting my xbee to any micro controller
Click to expand...

xbee IS the microcontroller.


shahid_c said:
is it necessary to check in pair?
Click to expand...

No it is not necessary. But if this is easier for you, then remove the pc and connect two xbee with each other. But in any case do not afraid to use the oscilloscope.
 

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