16 Jul
2018
16 Jul
'18
1:20 a.m.
Mark,
Setting up mesh on raspbian seems a daunting task indeed. Could you point
me in the right direction?
I've just succeeded in compiling bmx7 but it doesn't start (segmentation
fault).
Fabien
2018-07-12 11:58 GMT-04:00 Mark Birss <markbirss(a)gmail.com>om>:
No
OpenWRT development follows a mainline kernel while Raspbian used own
board specific kernel version with own development process.
Raspbian uses DT overlays to enable features and functions like SPI,
I2C,I2S,Hats etc which don't all yet work in mainline kernel
Mainline just too far behind with specific support in many cases
It take longer for mainline to support all board specific features
I also have issues with OpenWRT because of this on for example Orange Pi
boards
Regards
On Thu, 12 Jul 2018, 17:11 Fabien Gagné, <fabien.gagne(a)saintremi.ca>
wrote:
Mark,
Can't we add all the needed drivers to Chef's builder ?
2018-07-12 8:13 GMT-04:00 Mark Birss <markbirss(a)gmail.com>om>:
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Hi Daniel
You will have to use Raspbian Linux not OpenWRT as the JustBoom Amp
Zero pHAT requires drivers from Raspbian which are not available in
OpenWRT (LibreMesh)
It is still possible to setup mesh on Raspbian but will require more
effort
Regards
On Thu, Jul 12, 2018 at 1:37 PM Fabien Gagné <fabien.gagne(a)saintremi.ca>
wrote:
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https://lists.libremesh.org/mailman/listinfo/lime-users Hi Daniel,
Your testimonies are beginning to raise concerns.
I went with the RaspPi Zero W because I can easily add an audio DAC
and 2x40W amplifier
<https://www.justboom.co/product/justboom-amp-zero-phat/>, that also
happen to act as a DC regulator for the RaspPi, all running from a 3S LiPo.
Then I can also monitor battery voltage using an available analog-input.
The battery needs to last at least 9 hours, preferrably more. Using a
4000 mAh-3S, we can heathly use up to 2000 mAh before recharging. The audio
amplifier typically uses 200 mAh per day (tested, leaving 1800 mAh for the
rest).
I haven't received the RT5370-USB yet, but I have the rest of the
hardware and also 8 dBi antennas.
Honestly, I haven't even considered using routers. Should I ?
Fabien
2018-07-12 7:00 GMT-04:00 Daniel Golle <daniel(a)makrotopia.org>rg>:
> Hi Fabien,
>
> On Wed, Jul 11, 2018 at 09:28:10PM -0400, Fabien Gagné wrote:
> > Ok, I have ordered a four RT5370-USB adapters.
> >
> > I am building a distributed wireless audio with shairport that will
> operate
> > 4 nodes outdoors, plus a laptop. It will be running on four Rasp-Pi
> Zero W,
> > each equipped with a audio amplifier and Wifi-mesh through this
> external
> > adapter. The on-board WiFi could be used as an access-point.
> >
> > So, Am I on the right track?
>
> If the mesh your are building is very small and not very dense, this
> may work, but really don't expect any performance or range miracles
> from that Ralink Rt5370 1T1R USB Wifi, nor reliability... (I'm not
> saying that the SDIO Broadcom on-board WiFi crap on those RaspBi boards
> is any better)
> Why are you so keen on using that toy hardware? Using of-the-shelf
> WiFi routers is so much more convenient and even cheaper than using
> those RaspPi boards + Wifi dongles... Any reason why it got to be those
> boards (which neither has any fast IO interfaces to attach proper
> wireless hardware, nor any decent networking capabilities itself)?
>
>
> Cheers
>
>
> Daniel
>
>
> >
> > Fabien
> >
> >
> > 2018-07-11 5:04 GMT-04:00 Daniel Golle <daniel(a)makrotopia.org>rg>:
> >
> > > On Tue, Jul 10, 2018 at 10:20:53PM -0400, Fabien Gagné wrote:
> > > > Hi,
> > > >
> > > > I'd like to LibreMesh a few RaspberyPi Zero W.
> > > >
> > > > Which USB network interfaces are compatible for mesh ?
> > >
> > > None. USB wifi is always shit. There haven't ever been really
> useful
> > > USB WiFi dongles for several reasons. The closest it gets to are
> > > ath9k_htc based dongles, but even those have only very limited
> support
> > > for AP/Mesh/Ad-Hoc (limited to max. 6 neighbours/AP-clients, with
> more
> > > behaviour starts to be weird/undefined).
> > > Some Ralink rt2800usb based dongles also somehow work, but they
> perform
> > > worse than those ath9k_htc ones. RealTek stuff is acceptable for
> STA
> > > client mode, but that's it. MediaTek MT76x0U may become more useful
> > > in future (driver development is ongoing). Did I forget anything?
> > >
> > > > I'd like one with a removable antenna.
> > >
> > > Honestly: Wrong platform. Use something with mPCIe or hard-wired
> PCIe
> > > radios, ideally ath9k or mt76x2e.
> > >
> > > >
> > > > Thanks,
> > > >
> > > > Fabien
> > > > Canada
> > >
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> > >
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> > >
>
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>
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