Author Topic: Communicating with PC Wirelessly  (Read 1427 times)

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Offline pete2009Topic starter

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Communicating with PC Wirelessly
« on: June 25, 2009, 07:55:17 AM »
Hi guys,

I'm trying to find the best easiest and cheapest (quite a combo) way of communicating between the bot and the PC Wirelessly.

I know of the bluetooth method, but those suckers are very power hungry so would like to avoid them.

I have the following two goals:
1) give real time instructions from PC - eg: I type in my PC app turn left, that sends a signal out from the pc using XXXXX and the robot receives the signal using YYYYY and performs the instruction. I need to know what XXXXX and YYYYY would be.
2) Upload new code (program) the MC. This is an optional (nice to have) extra and if it conflicts with #1 then ignore it.

Thanks

« Last Edit: June 25, 2009, 07:57:20 AM by pete2009 »

Offline jamort

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Re: Communicating with PC Wirelessly
« Reply #1 on: June 25, 2009, 02:51:57 PM »
your going to need both a wireless serial port connector... and a UART connector to do this...
http://www.societyofrobots.com/microcontroller_uart.shtml
http://www.societyofrobots.com/microcontroller_uart_50_robot.shtml
my english teacher once said, "dont talk about what you dont know in public...."

so I replied the truth, " Exactly why I dont ever talk about English."

Offline BEAMer

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Re: Communicating with PC Wirelessly
« Reply #2 on: June 26, 2009, 07:07:41 AM »
how about RF modules? there are lots of ASK/FSK modules available. you can wire them up through some ports in the computer (serial/parallel).

http://www.sunrom.com/index.php?main_page=product_info&products_id=117

i have used them and they work fine. These things have a decent data rate (although not for video streaming  ;)) and range.

You may also try the zigbee modules, but they are a little costly....

Offline Ro-Bot-X

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Re: Communicating with PC Wirelessly
« Reply #3 on: June 26, 2009, 07:33:59 PM »
If you plan on getting an Arduino (or compatible) board, look into X-Bee modules, since you'll find plenty of shields, docs and samples.
Check out the uBotino robot controller!

Offline kpmcgurk

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Re: Communicating with PC Wirelessly
« Reply #4 on: June 28, 2009, 04:29:48 PM »
what is the general range of those X-bee's? I have found them fairly cheap on a few sites
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Offline BEAMer

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Re: Communicating with PC Wirelessly
« Reply #5 on: June 30, 2009, 09:14:16 AM »
They work upto a kilometer!!!! (on an open area ofcourse... ;D)

 


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