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interfacing xbee and 8051 microcontroller

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zahoor1701

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can rx and tx pins of xbee module can be directly connected to txd and rxd pins of microcontroller.i am using xbee s2c module and at89s52.
 

andre_luis

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The Xbee module is supplied with 3.3v, so at first sight you should add a level converter to interface the at89s52, which is supplies with 5v. However, for most cases a simple resistos divisor arrangement pretty suffice.
 

KlausST

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Hi,

As a general rule:
All information is given in the datasheets.
For IOs:
* absolute maximum ratings of IO.
* VIL,
* VIH,
* VOL
* VOH

I think no person can have all those values for all devices in mind, therefore it is necessary to read the datasheets.

Klaus
 

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