> > *I believe that convenience is exactly what the capes are for - not just > mine.*
I agree. On Wed, Jul 15, 2015 at 1:25 PM, Ron B. <r...@andicelabs.com> wrote: > I believe that convenience is exactly what the capes are for - not just > mine. > > -Ron > > On Wednesday, July 15, 2015 at 2:45:40 PM UTC-5, William Hermans wrote: >> >> *Hi all,* >>> >>> *My original reasoning behind the Power Cape was to get a 5V supply with >>> a low quiescent "off" current and that could restart the BeagleBone on a >>> scheduled timeout or external event. Using a 5V supply instead of the >>> PMIC's battery interface also allows for using USB devices. The battery >>> charger was added after the first prototype.* >>> >>> *As David pointed out, the INA219 allows system software to monitor the >>> battery voltage & current and take appropriate action. DC "power good" >>> from the charger is also available and can trigger power-up allowing the >>> BeagleBone to restart when power is restored. The micro-controller does a >>> few other things like RTC, WDTs, power-up retries, and holding reset during >>> power-up intended to make the system more reliable for remote operation. >>> The firmware is on Github if you need to customize behavior.* >> >> >> All this can be done without using a cape. Whats more, using a single >> msp430g2553, and a few GPIO's you can have all of that, plus a watchdog >> reset, and whatever else you can dream up. >> >> So, I suppose the cape is just a matter of convenience. Which, there is >> nothing wrong with that, and I've been accused many a time of coming up >> with elaborate / extravagant solutions. When a simpler / easier one will do >> . . . >> >> On Wed, Jul 15, 2015 at 9:54 AM, Marlon Cesar Pilonetto < >> marlon.p...@gmail.com> wrote: >> >>> anyone knows how to completely disconnect the power management via >>> operating system without adding any circuit in the BBB? >>> >>> >>> Em quarta-feira, 15 de julho de 2015 12:05:44 UTC-3, Ron B. escreveu: >>>> >>>> Hi all, >>>> >>>> My original reasoning behind the Power Cape was to get a 5V supply with >>>> a low quiescent "off" current and that could restart the BeagleBone on a >>>> scheduled timeout or external event. Using a 5V supply instead of the >>>> PMIC's battery interface also allows for using USB devices. The battery >>>> charger was added after the first prototype. >>>> >>>> As David pointed out, the INA219 allows system software to monitor the >>>> battery voltage & current and take appropriate action. DC "power good" >>>> from the charger is also available and can trigger power-up allowing the >>>> BeagleBone to restart when power is restored. The micro-controller does a >>>> few other things like RTC, WDTs, power-up retries, and holding reset during >>>> power-up intended to make the system more reliable for remote operation. >>>> The firmware is on Github if you need to customize behavior. >>>> >>>> Hope this helps, >>>> -Ron >>>> >>>> On Wednesday, July 15, 2015 at 8:54:17 AM UTC-5, Marlon Cesar Pilonetto >>>> wrote: >>>>> >>>>> I am looking into the possibility of using the powercape, but >>>>> otherwise one has no choice to help with the solution of the problem? >>>>> >>>>> Em quarta-feira, 15 de julho de 2015 08:55:16 UTC-3, David Goodenough >>>>> escreveu: >>>>>> >>>>>> On Tuesday 14 July 2015 14:40:36 William Hermans wrote: >>>>>> > Just out of curiosity. What is the attraction of a "battery cape" ? >>>>>> I mean >>>>>> > I can see the need for consistent power, and perhaps keeping this >>>>>> as small >>>>>> > as possible, but is that it ? >>>>>> The main advantage if an integrated solution is that you get to >>>>>> monitor the >>>>>> supply and the battery from the manager chip. This way you can shut >>>>>> yourself >>>>>> down cleanly when the battery is about to give up, and go into power >>>>>> save mode >>>>>> when not running on the mains. >>>>>> >>>>>> How much of that this cape does I do not know. >>>>>> >>>>>> David >>>>>> > >>>>>> > I have always imagine using an "inline" power source such as a >>>>>> regulated >>>>>> > battery output to the barreljack, with a small inline mains to >>>>>> battery >>>>>> > charging circuit. But . . . yeah that's me. >>>>>> > >>>>>> > Anyway my comment is not meant to discourage, or discount other >>>>>> avenues of >>>>>> > thought. I'm simply curious. >>>>>> > >>>>>> > On Tue, Jul 14, 2015 at 10:23 AM, Colin Bester <bester...@gmail.com> >>>>>> >>>>>> > >>>>>> > wrote: >>>>>> > > Yup, that's what I do with the powercape from Andice Labs as >>>>>> mentioned >>>>>> > > above. Except for very low drain battery is essentially >>>>>> disconnected. >>>>>> > > >>>>>> > > I initially went the route of trying to use the onboard battery >>>>>> connector >>>>>> > > but it's not really a decent solution if you want solid system >>>>>> and battery >>>>>> > > management. >>>>>> > > >>>>>> > > On Tuesday, July 14, 2015 at 12:12:03 PM UTC-5, Marlon Cesar >>>>>> Pilonetto >>>>>> > > >>>>>> > > wrote: >>>>>> > >> Lords am new to the BBB and what I need is to turn off the >>>>>> battery >>>>>> > >> management so that when my system is not connected to battery is >>>>>> not >>>>>> > >> consumed in its entirety. >>>>>> > >> >>>>>> > >>> -- >>>>>> > > >>>>>> > > For more options, visit 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...@googlegroups.com. >>>>>> > > For more options, visit 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. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to beagleboard...@googlegroups.com. >>> For more options, visit 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. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit 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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