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Re: [AVR-Chat] RF data communications headache

2006-03-13 by Daniel Adolfsson

Thomas Keller skrev:

>Greets.
>
>   I have a headache.  I have a body-wearable electronics package, 
>battery operated, which is generation on the order of 5 mbits/second of 
>data which needs to be RF linked to a PC within 100-200 feet.  While 
>there is no real reason the link itself needs to be an 802.11 link, 
>utlimately, the data stream reaching the computer needs to be in TCP/IP 
>UDP packets.  (I can handle generating the UDP packets at the recevier 
>end of the RF link, if need be).
>
>  My problem is getting the data from the body-wearable package TO a 
>receiver. I have been looking at various solutions.  My personal 
>favorite would have been Zigbee (IEEE 802.15.4) but the data bandwidth 
>is simp;ly not there.  So, not finding anything else with sufficient 
>bandwisfth and range, I find myself pretty much forced to lpook at 802.11.
>  
>
I have no idea how hard it would be to use, but I got to think about the 
external 802.11b network card I bought for my pda, its a SD-card 
("sdio") wich is about 5 mm longer than a normal storage card. And since 
sd uses some kind of i2c bus? it might be simpler to interface than for 
example a pcmcia card.
I bought mine of ebay, heres one just like it 
http://cgi.ebay.com/WLAN-Wi-Fi-802-11b-WiFi-Wireless-SDIO-SD-adapter-card-E_W0QQitemZ5879039791QQcategoryZ45003QQrdZ1QQcmdZViewItem

Just a thougth.

//Daniel Adolfsson

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