From: Greg K. <gk...@ya...> - 2012-02-28 23:31:21
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Valid concern. I'm powering a USB IMU off an Overo, and discovered that the USB doesn't provide full USB-spec amperage. This was solved in maybe somewhat hackish fashion by tying in the power line from the OTG port with a little jumper wire. This has worked fine over 100's of hours and reboots with no issues. For this to work properly, I also had to set gpio 168 high...I forget why exactly...maybe to trick the USB system into thinking a USB device was connected to the 2nd USB port. Greg ________________________________ From: Blaine Booher <bgb...@gm...> To: General mailing list for gumstix users. <gum...@li...> Sent: Tuesday, February 28, 2012 3:05 PM Subject: Re: [Gumstix-users] gumstix as accesspoint for wifi? Alex (and anyone else), Most of the usb cards on the market today are N. Even if we use "G", is there any reason I should be concerned about an "N" card? Has anyone successfully used an "N" USB card? I'm mostly just making sure that I can power the N card from the "standard" USB port on the gumstix. I doubt that'll be an issue, though. I think we're going the USB dongle route. We've simply spent too much time worrying about this problem when a usb dongle will take care of it for us. Sincerely, Blaine On Mon, Feb 27, 2012 at 7:01 PM, Alex Gibson <al...@al...> wrote: On 28/02/2012 10:36 AM, Blaine Booher wrote: >> Ben, >> >> Do you use a powered hub with your usb module? >> >> I'm about to give up on the overo wifi chip. We have a project that is >> becoming unwieldy due to wifi issues we're experiencing. It is >> incredibly frustrating. Randomly dropped connections, mostly. We can't >> pin it down to router hardware, signal strength, or anything else. It >> works great up until it doesn't, the wifi light just turns off. It >> scares me to think about using this gumstix out in the wild. We may end >> up using a USB dongle but I fear we may need to use a powered hub. This >> is turning into a nightmare. >> >> Sincerely, >> Blaine >> > >You can use wifi dongles without powered hubs, at least just one. > >We've been using wifi dongles for over 2 years on one project. > >g not n though. Belkin and edimax dongles both work very well with >aircrackng and scapy. Edimax EW7318USG with external antenna which is >nice if you need to use an extension cable to mount the antenna on the >outside of the case/equipment box.Or belkin F5D7050 >Both also work nicely if you need to do packet injection. > >http://www.edimax.com/en/produce_detail.php?pd_id=8&pl1_id=1&pl2_id=44 > > >Also the huawei E620 USB Modem(gsm/3g) works nicely. > >Using the wifi dongle also spreads the heat sources around. > >Alex > > >------------------------------------------------------------------------------ >Keep Your Developer Skills Current with LearnDevNow! >The most comprehensive online learning library for Microsoft developers >is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >Metro Style Apps, more. Free future releases when you subscribe now! >http://p.sf.net/sfu/learndevnow-d2d >_______________________________________________ >gumstix-users mailing list >gum...@li... >https://lists.sourceforge.net/lists/listinfo/gumstix-users > ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |