http://hackaday.com/2016/02/01/ftdi-drivers-break-fake-chips-again/ In the near future serial over USB with windows might be flaky.
Bo-Erik On 1 Feb 2016 21:53, "Bo-Erik Sandholm" <bosses...@gmail.com> wrote: > Standard aliexpress Bluetooth module v2.0+edr have a data rate of 2.1 > Mbit/s > It is not so bad if you can get the sensors UART to push data near that > speed. > > - Bo-Erik > On 1 Feb 2016 20:33, "David McGriffy" <da...@mcgriffy.com> wrote: > >> Right, 10DOF is with altitude. I'm building a drone controller out of >> piece >> parts as a demonstration. >> >> Yes, there are certainly ways to achieve low latency convolution, but all >> at the expense of CPU, which is already at a premium when running on >> phones. >> >> I first heard the 20ms figure from some folks working in the VR biz. >> Admittedly, they are more camera and content producers and not headset >> makers, so perhaps this is just a dream goal of theirs. It does make some >> sense to me as that's 50Hz, or the same as some TV refresh rates. Being >> one >> frame off there can certainly be noticeable, especially with speech vs >> moving lips. >> >> It does seem quite reasonable to me that an audio only app would not be as >> critical. And, of course, the video and audio frame rates don't really >> match anyway, or we'd be getting 882 or 960 sample blocks instead of 128 >> or >> 512. >> >> I got a GearVR recently and it does work better than Google Cardboard. >> Much >> of this is just comfort, I think, but I understand that it has its own >> gyros, mostly because they are faster. 'Heresay' is that the Oculus Rift >> samples at least 1000Hz. I have actually written an audio rate rotate that >> could handle this, but it does seem like overkill. At normal head turning >> rates, I find interpolating the rotation within each block to be enough. >> >> Any modern gyro and processor will run fast enough. My little 8-bit >> controllers run their complete flight control loop in under 2ms. The limit >> on update rate, and latency for that matter, will be the wireless link. >> Wifi will be fastest but highest power. Bluetooth lower power but lower >> bandwidth and still wireless. Wired would not only be very fast but could >> provide power. >> >> If you are thinking wireless headphones, remember the latency that that >> introduces. I find my everyday bluetooth headset, built for music, is >> useless for VR because of latency. And if you headphones are going to be >> wired, then running that extra USB might not be too bad. >> >> David McGriffy >> >> >> On Mon, Feb 1, 2016 at 12:49 PM, Bo-Erik Sandholm <bosses...@gmail.com> >> wrote: >> >> > Apperently there exists a head tracking specialized version of the >> bno055 >> > called bno070 - but I cannot find a place to buy this. >> > you can get up to 250 samples / second from that version. >> > >> > Matthias did not complain about the update rate with the DIY headtracker >> > http://www.rcgroups.com/forums/showthread.php?t=1677559 >> > >> > >> > >> http://electronicspurchasingstrategies.com/2014/03/06/hillcrest-bosch-sensortec-collaborate-sensor-hub-solution/ >> > >> > http://docsfiles.com/pdf_bno070.html >> > >> > >> > >> http://ae-bst.resource.bosch.com/media/_tech/media/product_flyer/Mobile-Hillcrest-Labs-Sensor-Hub-Product-Brief-BNO0701.pdf >> > >> > >> > >> https://www.eiseverywhere.com/file_uploads/5c881a2f6eaaa90ed3f3d30fb20852db_Newsflash_BNO077.pdf >> > >> > >> > maybe it is better to not think about that and try and use what I have ? >> > >> > It is easy to find videos about using the bno055 in different projects >> but >> > i do not want videos... have not found links to the software used... >> > >> > >> > >> > Better luck when google github bno055 :-) >> > >> > >> > >> https://www.reddit.com/r/virtualreality/comments/3faq11/why_we_need_to_move_to_ambisonic_sound_in_the/ >> > >> > http://vriscoming.com/daydream-vr/ >> > >> > Bo-Erik >> > >> > 2016-02-01 18:56 GMT+01:00 Marc Lavallee <m...@hacklava.net>: >> > >> > > On Mon, 01 Feb 2016 17:46:47 +0000 >> > > Stefan Schreiber <st...@mail.telepac.pt> wrote: >> > > > What is a 10 DOF motion sensor??? (Didn't you mean 9DOF?) >> > > >> > > It's 9DOF + barometric pressure, so 9DOF is enough. For more info: >> > > >> > >> http://playground.arduino.cc/Main/WhatIsDegreesOfFreedom6DOF9DOF10DOF11DOF >> > > >> > > -- >> > > Marc >> > > _______________________________________________ >> > > Sursound mailing list >> > > Sursound@music.vt.edu >> > > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe >> here, >> > > edit account or options, view archives and so on. >> > > >> > -------------- next part -------------- >> > An HTML attachment was scrubbed... >> > URL: < >> > >> https://mail.music.vt.edu/mailman/private/sursound/attachments/20160201/252ce84f/attachment.html >> > > >> > _______________________________________________ >> > Sursound mailing list >> > Sursound@music.vt.edu >> > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, >> > edit account or options, view archives and so on. >> > >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> https://mail.music.vt.edu/mailman/private/sursound/attachments/20160201/b49200e1/attachment.html >> > >> _______________________________________________ >> Sursound mailing list >> Sursound@music.vt.edu >> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, >> edit account or options, view archives and so on. >> > -------------- next part -------------- An HTML attachment was scrubbed... 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