We use Ubuntu 12.04, so that can't be the problem. Do you run it in a VM? I tried it once using VM Ware, and it didn't go beyond about 10 connections.
Regards, - Thomas On Tue, Jan 15, 2013 at 8:41 AM, wasif masood <[email protected]> wrote: > > Thomas, > > Thanks alot for your valuable feedback, atleast I know that I have to try > harder on that, but one small catch, I ma using Ubuntu12.04, can this be the > reason, not sure but need to look into it in more detail. > > Thanks! > > Regards, > Wasif! > > > On Tue, Jan 15, 2013 at 4:02 PM, Thomas Schmid <[email protected]> > wrote: >> >> We successfully had about 150 telosb nodes connected to one Linux laptop. >> The theoretic USB limit is 127 devices, including hubs, per bus. Usually >> your computer has multiple buses. We actually tried to have 200 connected, >> but Linux didn't want to enumerate all of them and stopped at about 150. We >> had a tree topology of one 10 port hub connected to 5 other 10 port hubs. We >> had 4 of these configurations, each on an individual USB port on the laptop. >> >> In your case, I suspect a bad cable could be the problem? Or if you rub >> >> On Jan 15, 2013 7:52 AM, "Constantinos Marios Angelopoulos" >> <[email protected]> wrote: >>> >>> Hi guys, >>> >>> in one of our work here >>> (http://www.hobnet-project.eu/files/papers/Experimental_Evaluation_of_Energy_Balance.pdf) >>> we have connected 27 TelosB motes via a USB tree topology. >>> >>> The PC was running on Ubuntu 10.04. >>> >>> Regards, >>> Marios >>> -- >>> Constantinos Marios Angelopoulos >>> >>> Department of Computer Engineering & Informatics >>> University of Patras and CTI & Press "Diophantus" >>> >>> >>> >>> On Tue, Jan 15, 2013 at 10:33 AM, Antonio Liñán C. <[email protected]> >>> wrote: >>>> >>>> I think you hit a magic number, I haven't done this test myself, are you >>>> connecting all motes to the same hub or how are you grouping the motes? >>>> >>>> I'll try this on the afternoon for the kicks :) >>>> >>>> --Antonio >>>> >>>> On Mon, 2013-01-14 at 23:12 +0100, wasif masood wrote: >>>> > >>>> > >>>> > Dear All, >>>> > >>>> > >>>> > Does any of you have ever experienced about how many sensor nodes we >>>> > can attach to a PC. In my experience, using external powered USB hubs, >>>> > one can get as many connections as could but when it comes to serial >>>> > logging, not all the nodes can get their data to the BaseStation via >>>> > serial connection. Yesterday, I tired upto 10 and they worked just >>>> > fine, but if I try to increase them beyond 10 some nodes just >>>> > meteriously can't log any thing. >>>> > >>>> > Please share your experieces! >>>> > Regards! >>>> > Wasif Masood >>>> > >>>> > _______________________________________________ >>>> > Tinyos-help mailing list >>>> > [email protected] >>>> > >>>> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>>> >>>> >>>> _______________________________________________ >>>> Tinyos-help mailing list >>>> [email protected] >>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >>> >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > > -- > Wasif Masood _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
