Guys I need to transmit wireless data from my AT89C51AC2 (8051 core microcontroller, you guessed it) to my PC (where I coded a C sharp application to process this data coming from serial). I done a bit of research and due to cost restraints and ease of use I decided upon using XBee technology. What I'm not sure is if this setup is fine to achieve wireless communication:


PC -> XBee Explorer (USB) -> XBee --AIR--- XBee <- XBee explorer regulated <- AT89C51AC2


Here are the links for the Xbee related devices where schematics can be found:

- Xbee Explorer: http://www.coolcomponents.co.uk/catalog/p...cts_id=297

- XBee 1mW Module with Chip Antenna (Series 1): http://www.coolcomponents.co.uk/catalog/p...cts_id=345

-2x XBee Explorer USB: http://www.coolcomponents.co.uk/catalog/p...cts_id=243

I'm new to Xbee devices. Any links/suggestions/comments would be very helpful.


Upon reading the Xbee manual ( http://www.sparkfun.com/datasheet...Manual.pdf ), Chapter 2 Module operation, there's a diagram that clearly shows that communication between the microcontroller and the Xbee module should be CMOS logic. As I see it there is no need to introduce a MAX232 between the microcontroller and the XBee explorer regulated board. This is due to the fact that the MAX232 converts voltage levels from CMOS to RS232 compliant which in my case....well...it's not required. What I want (at least from what I have understood) is to connect the RXD (P3.0) pin directly from the 8051 microcontroller to D0 on the 'XBee explorer regulated ' board (http://www.coolcomponents.co.uk/catalog/p...ts_id=297) and TXD (P3.1) to DI to the same XBee board, to achieve the setup as shown above. Am I right ?

Thanks in advance,

Kai