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Re: [Foam-extend-developers] foam-extend on tiny machines...
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From: Martin B. <bea...@gm...> - 2015-11-26 14:32:51
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Indeed, a dirt cheap full-fledge Linux machine. Since it appears the processor of the Pi zero is very similar to the Pi 1 processor, I am pretty sure that Foam would work on this device too. I was able to compile and run foam-extend on my little Pi1 device prior to building my little Pi2 cluster. Not a whole lot of RAM (same as the Pi 1), but hey, you got already plenty for what you are paying for. I think reliable configurations are available to access this device though one of its USB port (either serial-over-USB or Ethernet-over-USB access), so we could have a relatively cheap 'Foam on a stick' solution for the workshop. The main US reseller of the Pi Zero is already out of stock for the bare bone device, so I guess people are already shopping for their Xmas stockings :) Martin On Thu, Nov 26, 2015 at 5:21 AM, Bernhard Gschaider <bgs...@ic...> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > THAT looks exciting: https://www.raspberrypi.org/blog/raspberry-pi-zero/ > > Bernhard > > Am 29.10.15 um 06:31 schrieb Martin Beaudoin: > > > > On Wed, Oct 28, 2015 at 9:36 PM, Martin Beaudoin > > <bea...@gm... <mailto:bea...@gm...>> wrote: > > > > > > > > On Wed, Oct 28, 2015 at 7:45 PM, Bernhard Gschaider > > <bgs...@ic... <mailto:bgs...@ic...>> wrote: > > > > Am 29.10.15 um 00:12 schrieb Martin Beaudoin: > > > >> > As for using such small systems for the Workshop USB > > stick, if w > > e can > >> > figure out a way to USB tether a RaspBerry Pi2 with a > > normal lap > > top + > >> > some kind of terminal app. so we can simply ssh through > > the USB > > link, > >> > then we could have cheaper solution than the Intel stick. > >> > > >> > Here is a rough estimate of the cost in USD$, based on > > the units > > I have > >> > bought so far: > >> > > >> > * RaspBerry Pi 2 Model B : 35$ > >> > * 32GB Ultra MicroSDHC Class 10 card: 15$ > >> > * A Raspberry Pi2 case : 10$ > >> > * A USB cable for power and tether : 5$ > >> > > >> > For a total of roughly 65 $USD. > >> > > >> > And a 32GB card is slightly roomy. The OS is free, and > > the recip > > e to > >> > deploy foam-extend over this device is known. > >> > > >> > And we are still not talking bulk pricing here. I am > > sure we can > > shave a > >> > few $ if we buy a 100 of those... > >> > > >> > So the only piece of the puzzle remaining is a little > > bit of sof > > tware > >> > for USB tethering.... > >> > > >> > Maybe we can do all this as well with an Intel Compute > > stick. Bo > > th > >> > solutions would be way cool... > > > >> But the ultimate decision is of course with the Workshop > > organizer > > . > >> Because of course the logistics for the production of > > USB-keys is > >> already known > > > >> But lets see if we find something > > > > > >> Some other possible avenues to link a Pi2 with a good old > >> Linux/Mac/Windows laptop: > > > >> * Ethernet to Ethernet using an Ethernet crossover patch cable. > >> Needs an Ethernet port on the laptop, which no longer comes standa > > rd > >> on some laptops (MacBook Air) > >> Probably needs to add some kind of additional network routing to > >> make this work while the laptop is still connected to the OFW wifi > >> hotspot > > > > Something like this > > http://diyhacking.com/connect-raspberry-pi-to-laptop-display/ > > > > What is not funny here is that for every OS setting up the > > network is > > different (plus that some people might not have the privileges > > for this) > > > > > >> Yep, not an attractive solution for a whole group of various and > >> different platforms or OSes. > >> Too much time will be needed to set this up prior to starting the > >> trainings and such... > > > > > >> * Wifi access > >> We can transform the Pi2 as a Wifi Access point so the laptop can > >> establish a WIFI connection directly with the Pi2. > >> We need to add a decent WIFI USB dongle to the Pi2 (+ ~12 USD$) > >> Having a room full of 10s of little WIFI Access points/routers wou > > ld > >> be a very funny and probably inextricable mess > > > > And every RasPi would have to be setup differently so that it can be > > paired (otherwise Joe will connect to Abduhls RasPi) > > > > Note really feasible > > > > > >> Indeed. > > > > > > > >> * Serial over USB > >> The laptop would connect unidirectionally the Pi2 using an emulat > > ed > >> serial/terminal console available over one of the 4 USB ports > >> available on the Pi2 > >> Ohhhhhhh, maybe we have something worth exploring here too..... > >> Kermit anyone? LOL :):) > > > > http://workshop.raspberrypiaustralia.com/usb/ttl/connecting/2014/08/31/0 > > 1-connecting-to-raspberry-pi-via-usb/ > > < > http://workshop.raspberrypiaustralia.com/usb/ttl/connecting/2014/08/31/01-connecting-to-raspberry-pi-via-usb/ > > > > > > Needs additional hardware and the correct cable > > > > > >> And we cannot run paraview over a mere ASCII console.... Not a great > >> all around solution. > > > > > >> * TCP/IP over USB > >> Looks like we need a special kind of cable for this > >> Still investigating.... > > > >> But definitely, the USB port is probably the most universal connector > >> still available on a multitude of hardware platforms. Let's find a way > >> to talk to this little guy... > > > > I can't think of another way than the ones you listed. To be honest: > > none of them convinces me when I think of the support problems > > they're > > going to raise. But I'll keep looking > > > > > >> Yup, we need something easy to setup, and based on some really > >> common laptop applications like Putty or MobaXterm for Windows, or X > >> Windows over ssh for OSX or Linux. The complexity of this setup has > >> to remain on the Pi2 side so we can configure it correctly ourselves > >> prior to distributing these little beast... > > > >> Going back hunting... > > > > > >> Looks like there is no way around it, a USB to USB connection requires a > >> fancy USB Bridge cable with some electronics embedded in the cable. > >> Basically, USB cannot do host to host without this kind of device. See > >> here for the details : http://www.linux-usb.org/usbnet/ > > > >> So it looks to me the best and most flexible option now becomes using > >> the Pi2 Ethernet port + short Ethernet cable + Ethernet to USB adapter. > > > >> I can find on Amazon some USB 2.0 to 10/100 Fast Ethernet LAN Wired > >> Network Adapter for about 20 $USD. > >> A short flat Ethernet cable can be bought for about 1$. > >> Still bearable. > > > >> For laptops having there own embedded Ethernet port, the Ethernet to USB > >> adapter is not necessary, of course, but still remains convenient when > >> going back to the office and having to plug back into the wired > >> corporate network while still keeping connected with the Pi2. For > >> laptops like the MacBook Air lacking an embedded Ethernet port, such > >> Ethernet adapters would be necessary to connect to the Pi2 over > Ethernet. > > > >> So the challenge is now to find a simple Ethernet to Ethernet network > >> setup that will work for Windows, OSX and Linux. > >> Configuring the Pi2 to act as a local DHCP server for this Ethernet link > >> might be a good starting point. > >> I already got a similar setup for my little Pi2 cluster. Let's try to > >> see if I can make this fly... > > > >> Martin > > > >> Martin > > > > > > Bernhard > > > > > > > >> Martin > > > > > > > >> Bernhard > > > > > >> > > >> > Martin > >> > > >> > > >> > > >> > > > > > ------------------------------------------------------------------ > > ------------ > >> > > >> > > >> > > >> > _______________________________________________ > >> > Foam-extend-developers mailing list > >> > Foa...@li... > > <mailto:Foa...@li...> > >> <mailto:Foa...@li... > > <mailto:Foa...@li...>> > >> > > > https://lists.sourceforge.net/lists/listinfo/foam-extend-develop > > ers > >> > > > > > > > ------------------------------------------------------------------ > > ------------ > >> _______________________________________________ > >> Foam-extend-developers mailing list > >> Foa...@li... > > <mailto:Foa...@li...> > >> <mailto:Foa...@li... > > <mailto:Foa...@li...>> > > > > https://lists.sourceforge.net/lists/listinfo/foam-extend-developer > > s > > > > > > > > > >> -- > >> Martin Beaudoin > > > > > > > > ---------------------------------------------------------------------- > > -------- > > > > > > > >> _______________________________________________ > >> Foam-extend-developers mailing list > >> Foa...@li... > > <mailto:Foa...@li...> > >> https://lists.sourceforge.net/lists/listinfo/foam-extend-developers > > > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > Foam-extend-developers mailing list > > Foa...@li... > > <mailto:Foa...@li...> > > > https://lists.sourceforge.net/lists/listinfo/foam-extend-developers > > > > > > > > > > -- > > Martin Beaudoin > > > > > > > > > > -- > > Martin Beaudoin > > > > > > > ------------------------------------------------------------------------------ > > > > > > > > _______________________________________________ > > Foam-extend-developers mailing list > > Foa...@li... > > https://lists.sourceforge.net/lists/listinfo/foam-extend-developers > > > -----BEGIN PGP SIGNATURE----- > Comment: GPGTools - https://gpgtools.org > > iEYEARECAAYFAlZW3R0ACgkQXIMfp1I+9MFEaQCfWD8axrfJs2JL2lhV4o4V0g1y > cr0AoMvgwY4fOdpwfzadrAjcLnDBJ5jw > =q9a3 > -----END PGP SIGNATURE----- > > > ------------------------------------------------------------------------------ > Go from Idea to Many App Stores Faster with Intel(R) XDK > Give your users amazing mobile app experiences with Intel(R) XDK. > Use one codebase in this all-in-one HTML5 development environment. > Design, debug & build mobile apps & 2D/3D high-impact games for multiple > OSs. > http://pubads.g.doubleclick.net/gampad/clk?id=254741551&iu=/4140 > _______________________________________________ > Foam-extend-developers mailing list > Foa...@li... > https://lists.sourceforge.net/lists/listinfo/foam-extend-developers > -- Martin Beaudoin |
