Re: Extended battery pack
this one also intresting ... i will have it soon and report. http://www.dealextreme.com/details.dx/sku.3942 -- View this message in context: http://n2.nabble.com/Extended-battery-pack-tp737284p891.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Matthias Apitz wrote: El día Tuesday, September 16, 2008 a las 05:22:14PM -0700, nicklogan escribió: Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/ Does somebody know how to force the Freerunner to charge with 500mA even if it can't negotiate this via USB with the 'charger'? My shell script consists of three lines (two of them are output for diagnostics) = cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim echo 500 /sys/class/i2c-adapter/i2c-0/0-0073/force_usb_limit_dangerous cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim = If you are plugged into a Minty boost or other non-intelligent charger (like my car adaptor charger) the output from the script should be = 100 500 = The wiki page that documents this and other black magic is http://wiki.openmoko.org/wiki/GTA02_sysfs -stacy ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
On Tue, Sep 23, 2008 at 9:53 AM, -stacy [EMAIL PROTECTED] wrote: Matthias Apitz wrote: El día Tuesday, September 16, 2008 a las 05:22:14PM -0700, nicklogan escribió: Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/http://www.millions.ca/%7Estacy/mintyboost/ Does somebody know how to force the Freerunner to charge with 500mA even if it can't negotiate this via USB with the 'charger'? My shell script consists of three lines (two of them are output for diagnostics) = cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim echo 500 /sys/class/i2c-adapter/i2c-0/0-0073/force_usb_limit_dangerous cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim = If you are plugged into a Minty boost or other non-intelligent charger (like my car adaptor charger) the output from the script should be = 100 500 = The wiki page that documents this and other black magic is http://wiki.openmoko.org/wiki/GTA02_sysfs Why not just add the 47k resistor to the minty boost and then the Freerunner will choose 1A fast charge ? http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#Power_Design_Requirements Angus ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
On Tuesday 23 September 2008, Angus Ainslie wrote: On Tue, Sep 23, 2008 at 9:53 AM, -stacy [EMAIL PROTECTED] wrote: Matthias Apitz wrote: El día Tuesday, September 16, 2008 a las 05:22:14PM -0700, nicklogan escribió: Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/http://www.millions.ca/%7Est acy/mintyboost/ Does somebody know how to force the Freerunner to charge with 500mA even if it can't negotiate this via USB with the 'charger'? My shell script consists of three lines (two of them are output for diagnostics) = cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim echo 500 /sys/class/i2c-adapter/i2c-0/0-0073/force_usb_limit_dangerous cat /sys/class/i2c-adapter/i2c-0/0-0073/usb_curlim = If you are plugged into a Minty boost or other non-intelligent charger (like my car adaptor charger) the output from the script should be = 100 500 = The wiki page that documents this and other black magic is http://wiki.openmoko.org/wiki/GTA02_sysfs Why not just add the 47k resistor to the minty boost and then the Freerunner will choose 1A fast charge ? http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#Power_Design_Re quirements IIRC it was suggested this mode should only be enabled for chargers that were capable of supplying the full 1A. The mintyboost can't do this - you'll be lucky even to reach 500mA. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Angus Ainslie wrote: Why not just add the 47k resistor to the minty boost and then the Freerunner will choose 1A fast charge ? http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#Power_Design_Requirements a couple reasons, the biggest one being that the minty boost can't supply 1A the max is 600mA; as far as I know, there is no magic resistor to identify a 500mA charger to the Freerunner, it depends on USB host telling it that it can provide 500mA. Second, the ID pin is in the USB micro connector, so you would either need to put a micro connector on your minty boost (with the correct resistor installed) or use a hacked cable. -stacy ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Al Johnson wrote: On Tuesday 23 September 2008, Angus Ainslie wrote: Why not just add the 47k resistor to the minty boost and then the Freerunner will choose 1A fast charge ? http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#Power_Design_Re quirements IIRC it was suggested this mode should only be enabled for chargers that were capable of supplying the full 1A. The mintyboost can't do this - you'll be lucky even to reach 500mA. The Linear Technology step up voltage converter is supposed to be able to do 600mA, it is the AA cells that seem to have a problem with supplying 500mA. They get a little toasty :-). The one I built to use D cells doesn't seem to have any issues with supplying 500mA. -stacy ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
El día Tuesday, September 16, 2008 a las 05:22:14PM -0700, nicklogan escribió: Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/ Does somebody know how to force the Freerunner to charge with 500mA even if it can't negotiate this via USB with the 'charger'? I've looked around in the Wiki but the only pointer I have found is a Python script batmon.py in http://tehinterweb.com/freerunner/batmon/ but the values used in this script '/sys/devices/platform/' don't match my current kernel, for example it reads: SYS_FORCE = /sys/devices/platform/s3c2440-i2c/i2c-adapter/i2c-0/0-0073/force_usb_limit_dangerous but this file does not exist :-( matthias -- Matthias Apitz Manager Technical Support - OCLC GmbH Gruenwalder Weg 28g - 82041 Oberhaching - Germany t +49-89-61308 351 - f +49-89-61308 399 - m +49-170-4527211 e [EMAIL PROTECTED] - w http://www.oclc.org/ http://www.UnixArea.de/ b http://gurucubano.blogspot.com/ A computer is like an air conditioner, it stops working when you open Windows Una computadora es como aire acondicionado, deja de funcionar si abres Windows ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Daniel Grivicic wrote: You may want to try this too: http://www.ladyada.net/make/mintyboost/ enmoko.org/mailman/listinfo/community Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/ -- View this message in context: http://n2.nabble.com/Extended-battery-pack-tp737284p1094029.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
nicklogan wrote: Daniel Grivicic wrote: You may want to try this too: http://www.ladyada.net/make/mintyboost/ enmoko.org/mailman/listinfo/community Apparently it's been used successfully with a Freerunner and even has software written to boost the charge rate and create a desktop icon: http://www.millions.ca/~stacy/mintyboost/ Ga! Did I forgot to send that to the community list? Sorry! I will go stand in the corner now... -stacy ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Hi, this are very interesting resources. Has anyone had also the idea to create a 'docking station' that would propably also contains batteries ? I mean to dock it on the side with the USB connector having 2/3 of the openmoko FR device in negative form, so the FR could snap into the docking station. I would create a 3D sketch if it isn't done anywhere else. Lothar -- Lothar Behrens |Rapid Prototyping ... Heinrich-Scheufelen-Platz 2 |XSLT Codegeneration 73252 Lenningen |www.lollisoft.de ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
You may want to try this too: http://www.ladyada.net/make/mintyboost/ On Thu, Aug 21, 2008 at 7:04 PM, Lothar Behrens [EMAIL PROTECTED] wrote: Hi, this are very interesting resources. Has anyone had also the idea to create a 'docking station' that would propably also contains batteries ? I mean to dock it on the side with the USB connector having 2/3 of the openmoko FR device in negative form, so the FR could snap into the docking station. I would create a 3D sketch if it isn't done anywhere else. Lothar -- Lothar Behrens |Rapid Prototyping ... Heinrich-Scheufelen-Platz 2 |XSLT Codegeneration 73252 Lenningen |www.lollisoft.de ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Extended battery pack
Hi All, In order to use TangoGPS over extended periods, I created myself an extended battery pack for the Neo FreeRunner from bits and pieces I had lying around. Check out my blog post for instructions: http://helms-deep.cable.nu/~rwh/blog/?p=42 Cheers, Rob ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
Hi community :) On Thu, 2008-08-21 at 12:31 +1000, Robert William Hutton wrote: In order to use TangoGPS over extended periods, I created myself an extended battery pack for the Neo FreeRunner from bits and pieces I had lying around. Check out my blog post for instructions: http://helms-deep.cable.nu/~rwh/blog/?p=42 Nice project, power everywhere where you can get AA batteries :) For those who don't want to build a battery pack or who are just to lazy to do that, here's a small rechargeable USB power pack, 2000mAh capacity and 1000mA output current, for 18,50 Euro: NAVILOCK 41406 http://www.reichelt.de/?ARTICLE=80419 And another one from APC, with similar specifications, but higher output current and an included USB charger, for 46,95 Euro: APC UPB10-EC http://www.reichelt.de/?ARTICLE=74033 I guess Reichelt is only interesting for Germany since you have to order at least for 150 Euro otherwise, and also shipping will be more expensive, but I'm sure you can find these or similar products in other shops. Happy Freerunning :) cu Korbi signature.asc Description: This is a digitally signed message part ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Extended battery pack
On Wed, Aug 20, 2008 at 10:31 PM, Robert William Hutton [EMAIL PROTECTED] wrote: Hi All, In order to use TangoGPS over extended periods, I created myself an extended battery pack for the Neo FreeRunner from bits and pieces I had lying around. Check out my blog post for instructions: http://helms-deep.cable.nu/~rwh/blog/?p=42http://helms-deep.cable.nu/%7Erwh/blog/?p=42 Pretty cool, Rob. Thanks for sharing this. The following are three questions Rob has posted on the above website. - Can we charge the neo at 1000mA from AA batteries without damaging anything? If so, would it be worth fitting the 47.5 kOhm resistor between the ID and GND pins of the USB connector? - What is the most efficient way to use the external batteries? Intuitively I suspect it's best to not charge the internal battery from the external ones as there would be a lot of inefficiency involved. Perhaps running at 100mA charge rate most of the time, then switching to 500mA when the neo's battery got low? - Does anyone know how much current the neo draws when it's set to (say) 500mA and the battery fills up? It would be a very inefficient way to use the external batteries and would generate a lot of heat if it continued to draw more current than it needed. -Charles ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
