I believe they are sponsored by the British government and they produce far bigger volumes.
Regards, John > On May 16, 2016, at 4:45 PM, William Hermans <yyrk...@gmail.com> wrote: > > that is . .. it would cost us 4-5x as much to make our own BBB's . . > > On Mon, May 16, 2016 at 4:44 PM, William Hermans <yyrk...@gmail.com > <mailto:yyrk...@gmail.com>> wrote: > Also, while on the subject. It's kind of hard to understand how the rpi > foundation can create their rpi line at so little cost. My buddy and I ( > mostly my buddy ) priced out what it would cost to make a beaglebone, and for > us, it would cost 4-5 as much as what they're sold for retail. > > Quite honestly, the first iteration of the rpi I found rather repugnant. But > now owning an rpi3 I see it is really a good little board that has limited > uses in the embedded arena( true embedded, not just small cheap systems > connected to 3 GPIO's ) > > But see, the Raspberry PI3 has quad cores, a really good GPU( which is where > is shines ) 1G memory, ethernet, 40 or so pins for GPIO . peripherals, wifi, > and BLE all for $35 . . . Honestly I do not see them making any money except > from their government, from loses. > > So even though I think the rpi3 is a really good deal, and a steal at $35USD, > I still think the BBB is the better deal, even at a higher cost. For many > situations. But how in the hell does the rpi foundation do it ? heh. > > On Mon, May 16, 2016 at 4:37 PM, Gerald Coley <ger...@beagleboard.org > <mailto:ger...@beagleboard.org>> wrote: > I design systems like this all the time for our customers. They are nice > enough to give me a bigger budget and not worried about keeping it low cost > just to sell more boards. > > Gerald > > > On Mon, May 16, 2016 at 6:34 PM, William Hermans <yyrk...@gmail.com > <mailto:yyrk...@gmail.com>> wrote: > The bottom line seems to be that the BBB was not designed for this > kind of situation or application, and making it fit this requires > additional resources of some sort. Now the question comes down to > cost, utility, percentage of applications needing this, elegance of > design, and whether or not the hardware platform can cooperate in this > or whether or not it simply lives in its own world. > > > Harvey > > I think the real bottom line is that the BBB *could* have been designed to do > all this and more. At additional costs. As Gerald has stated many times on > this group. Which I can completely understand. > > > > > On Mon, May 16, 2016 at 4:28 PM, Harvey White <ma...@dragonworks.info > <mailto:ma...@dragonworks.info>> wrote: > On Mon, 16 May 2016 15:45:14 -0700, you wrote: > > >You do not need anything connected to the beaglebone for any reason. The > >beaglebone has an on die ADC that can detect if the AC mains is powered or > >not. In which case, after a preset time period the Beaglebone could shut > >its self down. > > True enough. The prevailing wisdom was going with an external device > having all the smarts about power failure, while the BBB was being > held up by batteries. > > The requirement that you propose is that the BBB have, somewhere, > access to power long enough to do a graceful shutdown. > > How this is done is left as an exercise for the student. > > > > > >Meanwhile, an external "device" can just switch off the input 5V to the > >beaglebone after a preset amount of time. Then once you have AC power back, > >the "Device" simply turns the 5V back on. > > Yep, and with the same requirements of powering from either a battery, > a supercapacitor, or something more exotic. > > The bottom line seems to be that the BBB was not designed for this > kind of situation or application, and making it fit this requires > additional resources of some sort. Now the question comes down to > cost, utility, percentage of applications needing this, elegance of > design, and whether or not the hardware platform can cooperate in this > or whether or not it simply lives in its own world. > > > Harvey > > > > > >On Mon, May 16, 2016 at 3:09 PM, Harvey White <ma...@dragonworks.info > ><mailto:ma...@dragonworks.info>> > >wrote: > > > >> On Mon, 16 May 2016 11:35:54 -0700 (PDT), you wrote: > >> > >> >Looks like nut been ported to Debian for the BBB. > >> > > >> >It and a smart UPS might be the easiest solution. > >> > > >> >I'm thinking along these lines, but haven't done anything with it yet. > >> The > >> >nut client getting a signal over the network from my desktop is kind of > >> >what I'm thinking. I've my BBW IOT app, router, and ISP interface on > >> >a separate UPS that I want running as long as the battery lasts, but a > >> >controlled shutdown of the BBW is something I'd like to add eventually. > >> > > >> >The "shutdown if the power outage lasts longer than X" is pretty easy, > >> >robust automatic start-up when the power returns might require a smarter > >> >than the average UPS. > >> > >> I'd say that you want one that does automatic battery tests as well. > >> The one that I knew of at one time was a sine wave inverter. > >> > >> To summarize the types of inverters, there are two schemes. > >> > >> 1) keep a battery charged at all times. When power fails, detect the > >> loss of AC at the output. Start the inverter and switch that power to > >> the output of the inverter. What happens is that power drops out for > >> the output with a power failure, and your equipment is supposed to > >> stay "up" for a certain amount of time (that the UPS takes to switch > >> on). Then the UPS takes up the load and life is good. > >> > >> 2) keep a battery charged at all times. Power the inverter from the > >> battery at all times. When the power fails, the battery charger > >> simply shuts down. > >> > >> The second one is the one I'd think you'd want to get. > >> > >> An opto isolator, driven by an AC bridge (or an AC style optoisolator) > >> would give you a power failure indication within a half cycle. > >> > >> Harvey > >> > >> > >> > > >> >I'd be interested in success stories, but my experience with brand name > >> >(APC) and off-brand UPS with desktop system is while they are better than > >> >nothing, they aren't good at reporting battery issues and ultimately I > >> end > >> >up with a power failure and "pull the plug" type shutdown because the UPS > >> >batteries can't support the switch over. We get a lot of 0.5 - 15 minute > >> >power failures from thunderstorms here, so I'm sure the USP has saved me, > >> >but they are not foolproof. > >> > > >> > > >> >Ultimately I'm trying to sell the wife on a "whole house" natural gas > >> >powered backup system so that a dumb UPS or battery with only a few > >> minutes > >> >run time to let the generator come on and switch over would be needed. > >> >She was excited about it after Hurricane Ike, but now that its been ~eight > >> >years, selective memory has her thinking we don't need it. > >> > >> -- > >> For more options, visit http://beagleboard.org/discuss > >> <http://beagleboard.org/discuss> > >> --- > >> You received this message because you are subscribed to the Google Groups > >> "BeagleBoard" group. > >> To unsubscribe from this group and stop receiving emails from it, send an > >> email to beagleboard+unsubscr...@googlegroups.com > >> <mailto:beagleboard%2bunsubscr...@googlegroups.com>. > >> To view this discussion on the web visit > >> https://groups.google.com/d/msgid/beagleboard/apfkjbtvsk9h94q0qvfpke40ofhbc7c22h%404ax.com > >> > >> <https://groups.google.com/d/msgid/beagleboard/apfkjbtvsk9h94q0qvfpke40ofhbc7c22h%404ax.com> > >> . > >> For more options, visit https://groups.google.com/d/optout > >> <https://groups.google.com/d/optout>. > >> > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard%2bunsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/silkjbt8elht0qlo1536jduujmhaekcobc%404ax.com > > <https://groups.google.com/d/msgid/beagleboard/silkjbt8elht0qlo1536jduujmhaekcobc%404ax.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CALHSORr8pWh47wzyi-jd_4U13X%2BfEDBj_r9Cf6Ao205AjYrX%2Bg%40mail.gmail.com > > <https://groups.google.com/d/msgid/beagleboard/CALHSORr8pWh47wzyi-jd_4U13X%2BfEDBj_r9Cf6Ao205AjYrX%2Bg%40mail.gmail.com?utm_medium=email&utm_source=footer>. > > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > > -- > Gerald > > ger...@beagleboard.org <mailto:ger...@beagleboard.org> > http://beagleboard.org/ <http://beagleboard.org/> > gcol...@emprodesign.com <mailto:gcol...@emprodesign.com> > > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BdzeQ3T_QDcThddEnaoVqzU9PiDCS1ncVFbd0qfsDyzXA%40mail.gmail.com > > <https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BdzeQ3T_QDcThddEnaoVqzU9PiDCS1ncVFbd0qfsDyzXA%40mail.gmail.com?utm_medium=email&utm_source=footer>. > > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CALHSORqM2ZeUOdjgDwzN8imUGMh6y3ucPUmtQbYQMqJZ39ZEzA%40mail.gmail.com > > <https://groups.google.com/d/msgid/beagleboard/CALHSORqM2ZeUOdjgDwzN8imUGMh6y3ucPUmtQbYQMqJZ39ZEzA%40mail.gmail.com?utm_medium=email&utm_source=footer>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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