ZigBee Wireless Technology

The Wireless technology that I had used in my Wireless Mouse using Accelerometer is ZigBee. ZigBee is easy to configure and it can communicate with no: of nodes at a time...

You can see purchase details of ZigBee modules from here...

The connection diagram for ZigBee modules is shown below...

Serial cable replacement for the serial cable replacement we have to configure some parameters on the XBee's we are going to use, these parameters are:

- serial port baud rate - ATBD
- network identifier - ATID
- node identifier - ATMY
- destination node identifier - ATDL

Example:

- An XBee module 1 - network ID 3332 - speed 1200 - address 0 - destination 1

- An XBee module 2 - network ID 3332 - speed 1200 - address 1 - destination 0


The command sequence to send would be:

In the XBee module 1
Command ............. Response
+++ .......................... Ok
ATID ........................ 3332
ATBD ....................... 3 (this means 9600 baud rate)
ATBD0 ..................... OK (so I change it to 1200)
ATMY0 ..................... OK
ATDL1 ...................... OK
ATWR ...................... OK (to write the configuration to memory)
ATCN


In the XBee module 2
Command ............. Response
+++ ........................... Ok
ATID ......................... 3332
ATBD ......................... 3 (this means 9600 baud rate)
ATBD0 ....................... OK (so I change it to 1200)
ATMY1 ....................... OK
ATDL0 ........................ OK
ATWR ........................ OK (to write the configuration to memory)
ATCN


Now you have both the XBee modules ready to communicate wirelessly (a wireless serial port).