Wireless Communication

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jimmy's Avatar (by Gravatar)jimmy posted on
November 7, 2006, 2:12 pm
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Hi all,

I am in the process of creating a small PIC based robot for a school
project. I wish to be able to steer the robot wirelessly from my
computer using an RS 232 port. I have all the necessary knowledge for
outputting serial data using VB.NET however i need help choosing the
hardware to transmit the data along with information as to how to
receive the data into the PIC chip. I'd also like to add the fact that
i have a very limited budget.

Thanks in advance.


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howy's Avatar (by Gravatar)howy posted on
November 7, 2006, 2:31 pm
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Re: Wireless Communication


Look at Digikey or Mouser.  They have a bunch of little wirelss modem
boards. You could also buy a pair of bluetooth RS232 trancievers to
create a wireless virtual RS232 link..
-howy


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Joe's Avatar (by Gravatar)Joe posted on
November 7, 2006, 7:28 pm
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Re: Wireless Communication


An Infrared transmitter and reciever is easy and extremely cheap to
implement on a PIC, from what I've read.  I'm just starting to learn
about the stuff myself.  On the PIC side, all you may need is an IR
detector device which will recognize the typical 38 khz IR signal.
Here is a link to Parallax's version.  They also have application
notes.
  http://www.parallax.com/detail.asp?product_id50-00014

On the PC Side, I've seen devices to put IR transmitters onto your
computer, but many laptops or PDA's have them already.

I don't think they would be complicated, but I don't know what is
involved in making a transmitter from scratch for a PC.

Joe Dunfee


D. Jay Newman's Avatar (by Gravatar)D. Jay Newman posted on
November 8, 2006, 2:46 am
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Re: Wireless Communication


SparkFun has a bunch of things that do this.
   http://www.sparkfun.com/

Or check under ZigBee/XBee.
--
D. Jay Newman           ! Author of:
jay@sprucegrove.com     ! _Linux Robotics: Programming Smarter Robots_
http://enerd.ws/robots/  ! "Heros aren't born, they're cornered."

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