From: Brad M. <bmi...@xm...> - 2006-08-22 20:48:58
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Guys, The new wiki has excellent information for using an LCD. This has been one of those things that people were always asking about and reinventing so it's good to see it finally hammered. Now I am working on connecting up a rechargable battery... as I'm searching the mailing lists I'm experiencing some of that familiar feeling of uncertainty. People have discussed what should work for rechargable batteries but we generally don't see the "yes it worked" sort of post after the fact on the mailing list so I'm not sure which route to pursue. Can we get reports of what sort of rechargable battery systems are known to be working for people? I will take responsibility to put it in the wiki in a form like the LCD docs. It seems that there is not much out there for reducing power usage, but if anyone has done work on low power modes, please let us know that too. Brad |
From: Karl v. M. <ver...@gm...> - 2006-08-24 08:57:58
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Hey Brad, I'm currently using 4 2400mAh NiMH AA Batteries to power my gumstix and gps. Best runtime I've managed to get is around 6hours. I've also got 2 2000mAh Li-Poly batteries from spark fun and a backpack that does charging and under/over voltage protection, but havent had a chance to hook this up yet. Don't see why i will have any problems with this though. On 8/23/06, Brad Midgley <bmi...@xm...> wrote: > > Guys, > > The new wiki has excellent information for using an LCD. This has been > one of those things that people were always asking about and reinventing > so it's good to see it finally hammered. > > Now I am working on connecting up a rechargable battery... as I'm > searching the mailing lists I'm experiencing some of that familiar > feeling of uncertainty. People have discussed what should work for > rechargable batteries but we generally don't see the "yes it worked" > sort of post after the fact on the mailing list so I'm not sure which > route to pursue. > > Can we get reports of what sort of rechargable battery systems are known > to be working for people? I will take responsibility to put it in the > wiki in a form like the LCD docs. > > It seems that there is not much out there for reducing power usage, but > if anyone has done work on low power modes, please let us know that too. > > Brad > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Brad M. <bmi...@xm...> - 2006-08-25 17:13:28
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Karl > I'm currently using 4 2400mAh NiMH AA Batteries to power my gumstix and gps. > Best runtime I've managed to get is around 6hours. Isn't there a cap or something that people put in this battery circuit to improve it? Also, you do have to take them out to charge them, right? > I've also got 2 2000mAh Li-Poly batteries from spark fun and a backpack > that does charging and under/over voltage protection, but havent had a > chance to hook this up yet. Don't see why i will have any problems with > this though. I'd like to hear how this goes and if you try to build something that can charge in place. A charge-in-place that uses the same power that we use to operate the gumstix would be ideal. (Think ipod shuffle with its usb charging) Brad |
From: Chris D. <cg...@co...> - 2006-08-25 17:21:51
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On 8/25/06, Brad Midgley <bmi...@xm...> wrote: > I'd like to hear how this goes and if you try to build something that > can charge in place. > > A charge-in-place that uses the same power that we use to operate the > gumstix would be ideal. (Think ipod shuffle with its usb charging) Brad, If you can limit yourself to one-cell li-poly, you should be able to use: http://www.sparkfun.com/commerce/product_info.php?products_id=726 Note, however, that USB charging is limited to 100mA, so if you have a beefy cell, it could take quite some time to charge. Also note that I haven't used this board myself. -chris |
From: Marc N. <gee...@gm...> - 2006-08-25 19:14:50
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I have that board. It works well, although USB charging isn't speedy as you point out. -marc On 8/25/06, Chris Danis <cg...@co...> wrote: > > On 8/25/06, Brad Midgley <bmi...@xm...> wrote: > > I'd like to hear how this goes and if you try to build something that > > can charge in place. > > > > A charge-in-place that uses the same power that we use to operate the > > gumstix would be ideal. (Think ipod shuffle with its usb charging) > > Brad, > > If you can limit yourself to one-cell li-poly, you should be able to use: > > http://www.sparkfun.com/commerce/product_info.php?products_id=726 > > Note, however, that USB charging is limited to 100mA, so if you have a > beefy cell, it could take quite some time to charge. Also note that I > haven't used this board myself. > > -chris > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Karl v. M. <ver...@gm...> - 2006-08-25 23:46:09
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Brad, On 8/26/06, Brad Midgley <bmi...@xm...> wrote: > > Karl > > > I'm currently using 4 2400mAh NiMH AA Batteries to power my gumstix and > gps. > > Best runtime I've managed to get is around 6hours. > > Isn't there a cap or something that people put in this battery circuit > to improve it? Also, you do have to take them out to charge them, right? Unfortunately yes do have to take them out, but i dont have them hard wired in.. > I've also got 2 2000mAh Li-Poly batteries from spark fun and a backpack > > that does charging and under/over voltage protection, but havent had a > > chance to hook this up yet. Don't see why i will have any problems with > > this though. > > I'd like to hear how this goes and if you try to build something that > can charge in place. The backpack can charge in place, has a usb plug for power... http://sdgpsdatalogger.blogspot.com/2006/07/lipo-battery-backpack-becomes-reality.html He made 5...sold them for $25 each. But I'm sure if there was enough demand he might make some more... A charge-in-place that uses the same power that we use to operate the > gumstix would be ideal. (Think ipod shuffle with its usb charging) > > Brad > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Brad M. <bmi...@xm...> - 2006-08-28 17:52:00
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Guys, FYI, I put what I learned in this battery thread into the wiki. It's linked from the main page in the hardware section. http://docwiki.gumstix.org/Batteries Brad |
From: Brad M. <bmi...@xm...> - 2006-08-25 20:06:43
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Marc Which battery are you using? Can you give us numbers for battery life and charging times? This one looks like it fits the profile of the audiostix fairly well... http://www.sparkfun.com/commerce/product_info.php?products_id=339 Would it be possible to combine the data lines from the audiostix usb with the charging board's usb connector? That would in effect give us an integrated solution. Brad Nicholas wrote: > I have that board. It works well, although USB charging isn't speedy as > you point out. > > -marc > > On 8/25/06, *Chris Danis* < cg...@co... <mailto:cg...@co...>> > wrote: > > On 8/25/06, Brad Midgley < bmi...@xm... > <mailto:bmi...@xm...>> wrote: > > I'd like to hear how this goes and if you try to build something that > > can charge in place. > > > > A charge-in-place that uses the same power that we use to operate the > > gumstix would be ideal. (Think ipod shuffle with its usb charging) > > Brad, > > If you can limit yourself to one-cell li-poly, you should be able to > use: > > http://www.sparkfun.com/commerce/product_info.php?products_id=726 > > Note, however, that USB charging is limited to 100mA, so if you have a > beefy cell, it could take quite some time to charge. Also note that I > haven't used this board myself. > > -chris > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, > security? > Get stuff done quickly with pre-integrated technology to make your > job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > <http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642> > _______________________________________________ > gumstix-users mailing list > gum...@li... > <mailto:gum...@li...> > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > ------------------------------------------------------------------------ > > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Marc N. <gee...@gm...> - 2006-08-25 21:06:36
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Brad, I can't do a full discharge test yet as I don't yet have a LiPoly protection circuit built and don't like objects that explode. But I'm using both the 100mAh and 860mAh batteries from Sparkfun. I wouldn't mess with trying to tie the charging into the Gumstix/Audiostix USB, to be honest. At the very least, you'd have to cut the traces to the onboard regulator. And you'd have no protection/switching circuitry. -marc On 8/25/06, Brad Midgley <bmi...@xm...> wrote: > > Marc > > Which battery are you using? Can you give us numbers for battery life > and charging times? > > This one looks like it fits the profile of the audiostix fairly well... > > http://www.sparkfun.com/commerce/product_info.php?products_id=339 > > Would it be possible to combine the data lines from the audiostix usb > with the charging board's usb connector? That would in effect give us an > integrated solution. > > Brad > > Nicholas wrote: > > I have that board. It works well, although USB charging isn't speedy as > > you point out. > > > > -marc > > > > On 8/25/06, *Chris Danis* < cg...@co... <mailto:cg...@co...>> > > wrote: > > > > On 8/25/06, Brad Midgley < bmi...@xm... > > <mailto:bmi...@xm...>> wrote: > > > I'd like to hear how this goes and if you try to build something > that > > > can charge in place. > > > > > > A charge-in-place that uses the same power that we use to operate > the > > > gumstix would be ideal. (Think ipod shuffle with its usb charging) > > > > Brad, > > > > If you can limit yourself to one-cell li-poly, you should be able to > > use: > > > > http://www.sparkfun.com/commerce/product_info.php?products_id=726 > > > > Note, however, that USB charging is limited to 100mA, so if you have > a > > beefy cell, it could take quite some time to charge. Also note that > I > > haven't used this board myself. > > > > -chris > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, > > security? > > Get stuff done quickly with pre-integrated technology to make your > > job easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > > Geronimo > > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > < > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642> > > _______________________________________________ > > gumstix-users mailing list > > gum...@li... > > <mailto:gum...@li...> > > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > > > > > > ------------------------------------------------------------------------ > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, > security? > > Get stuff done quickly with pre-integrated technology to make your job > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > gumstix-users mailing list > > gum...@li... > > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Jesse W. <jes...@gm...> - 2006-08-25 21:32:15
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On 8/25/06, Marc Nicholas <gee...@gm...> wrote: > > Brad, > > I can't do a full discharge test yet as I don't yet have a LiPoly > protection circuit built and don't like objects that explode. But I'm using > both the 100mAh and 860mAh batteries from Sparkfun. > > I wouldn't mess with trying to tie the charging into the Gumstix/Audiostix > USB, to be honest. At the very least, you'd have to cut the traces to the > onboard regulator. And you'd have no protection/switching circuitry. > > -marc > Seems to me like any gumstix that can plug into a usb should integrate the max1555 on it's board. Seems like a reasonable RFE for the next gen expansion boards. I would actualy go so far as to make a Breakout GS board with an integrated lipoly on it (with the max1555 to charge it). but that's a bit off the subject. Since I'm using a Robostix I have to have more than 6v. I plan to use these batteries from tenergy: http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=988 I'm using two of these one to power servos/motors, and the other to power the gumstix/robostix logic. I'll post some stuff on the wiki when I get everything working. -- -Jesse W. |