Wifi: Connecting a Laptop to en embedded system
in [Design]
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From: hamilton on 15 Jun 2010 18:38 On 6/15/2010 12:14 PM, Dave Platt wrote: > In article<hv8cpp$ng3$1(a)news.eternal-september.org>, > hamilton<hamilton(a)nothere.com> wrote: > >> So would two Bluetooth devices be cheaper that one embedded WiFi ?? > > I see USB-to-BlueTooth dongles selling online for under $2 in single > quantities, and under a dollar (free shipping) on eBay. > These USB dongles on ebay are for phones. Can these be used for data as well ?? Of the ones listed, none state they can be used as a serial device. hamilton
From: certsoft on 16 Jun 2010 17:09 On Jun 15, 10:12 am, "PovTruffe" <PovTa...(a)gaga.invalid> wrote: > Hi, > > Say you want to design an embedded system that any laptop can > connect to without any Wifi network available. Is that possible ? > > Just a point to point communications would be required, not really > a full featured wireless network. A laptop would just sent a few > simple commands to the embedded system. I've used a RS-232 to Wifi adapter (http://serialio.com/products/ mobile/wifi/WiSnapKit1.php) to access an embedded system. In my case the system already had a web server, I just redirected all the text in and out to the serial port. I configured the adapter for ad-hoc mode and could then access the web server using a laptop, or even ipad.
From: Michael Karas on 17 Jun 2010 05:37 In article <hv8ve0$2li$1(a)news.eternal-september.org>, hamilton(a)nothere.com says... > > On 6/15/2010 12:14 PM, Dave Platt wrote: > > In article<hv8cpp$ng3$1(a)news.eternal-september.org>, > > hamilton<hamilton(a)nothere.com> wrote: > > > >> So would two Bluetooth devices be cheaper that one embedded WiFi ?? > > > > I see USB-to-BlueTooth dongles selling online for under $2 in single > > quantities, and under a dollar (free shipping) on eBay. > > > These USB dongles on ebay are for phones. > > Can these be used for data as well ?? > > Of the ones listed, none state they can be used as a serial device. > > hamilton I use several of the ~$2 USB bluetooth adapters on my PCs. They get used for mouse, headset and cell phone interface. The drivers that install in the PC for the thing expose two virtual Comm ports over the BlueTooth. Seems quite reasonable that if you have the embedded system negotiate with the PC that it can support a virtual serial port over BlueTooth. -- - mkaras
From: hamilton on 17 Jun 2010 09:45 On 6/17/2010 3:37 AM, Michael Karas wrote: > In article<hv8ve0$2li$1(a)news.eternal-september.org>, > hamilton(a)nothere.com says... >> >> On 6/15/2010 12:14 PM, Dave Platt wrote: >>> In article<hv8cpp$ng3$1(a)news.eternal-september.org>, >>> hamilton<hamilton(a)nothere.com> wrote: >>> >>>> So would two Bluetooth devices be cheaper that one embedded WiFi ?? >>> >>> I see USB-to-BlueTooth dongles selling online for under $2 in single >>> quantities, and under a dollar (free shipping) on eBay. >>> >> These USB dongles on ebay are for phones. >> >> Can these be used for data as well ?? >> >> Of the ones listed, none state they can be used as a serial device. >> >> hamilton > > > I use several of the ~$2 USB bluetooth adapters on my PCs. They get used > for mouse, headset and cell phone interface. The drivers that install in > the PC for the thing expose two virtual Comm ports over the BlueTooth. > > Seems quite reasonable that if you have the embedded system negotiate > with the PC that it can support a virtual serial port over BlueTooth. > OK, I am glad that this does work as a serial port. Now, please post a specific bluetooth adapter that this has worked for you. I am new to bluetooth and would like to get something that just works. Thanks hamilton
From: JosephKK on 18 Jun 2010 10:01
On Thu, 17 Jun 2010 02:37:59 -0700, Michael Karas <mkaras(a)carouselDASHdesign.com> wrote: >In article <hv8ve0$2li$1(a)news.eternal-september.org>, >hamilton(a)nothere.com says... >> >> On 6/15/2010 12:14 PM, Dave Platt wrote: >> > In article<hv8cpp$ng3$1(a)news.eternal-september.org>, >> > hamilton<hamilton(a)nothere.com> wrote: >> > >> >> So would two Bluetooth devices be cheaper that one embedded WiFi ?? >> > >> > I see USB-to-BlueTooth dongles selling online for under $2 in single >> > quantities, and under a dollar (free shipping) on eBay. >> > >> These USB dongles on ebay are for phones. >> >> Can these be used for data as well ?? >> >> Of the ones listed, none state they can be used as a serial device. >> >> hamilton > > >I use several of the ~$2 USB bluetooth adapters on my PCs. They get used >for mouse, headset and cell phone interface. The drivers that install in >the PC for the thing expose two virtual Comm ports over the BlueTooth. > >Seems quite reasonable that if you have the embedded system negotiate >with the PC that it can support a virtual serial port over BlueTooth. There is an interesting idea, hack a wireless keyboard/mouse for the wireless connection. Probably wouldn't make the distance though. |