Re: Power dongle
The Digital Pioneer wrote: Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. I guess the market for 15s power supplies is too small for anyone to make a product. You may want to improvise something like this: * Get a usb connector that fits * Stack up enough button-size batteries to get between 4.0 and 5.0 volts * Cut most of the wire off that usb connector. Bare the two wires needed for power, and tape them to opposite sides of the stack of batteries. * More tape around everything, for electrical insulation. This is about as small as it gets. Probably over 15s of phone power, in a package not much bigger than the tiny batteries. Exact size depends on how good you are at cutting down the usb connector, and how small batteries you can find. When the batteries run out, get new ones and more tape. :-) Helge Hafting ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
On Thu, Jun 11, 2009 at 11:33 AM, Helge Haftinghelge.haft...@hist.no wrote: The Digital Pioneer wrote: Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. I guess the market for 15s power supplies is too small for anyone to make a product. You may want to improvise something like this: * Get a usb connector that fits * Stack up enough button-size batteries to get between 4.0 and 5.0 volts * Cut most of the wire off that usb connector. Bare the two wires needed for power, and tape them to opposite sides of the stack of batteries. * More tape around everything, for electrical insulation. Maybe use capacitors? if you only need a few seconds... and you never have to worry about replacing them. Cameron 'Toaster' Frazier ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Well that's about the size I was looking for, but that's gonna get real expensive real fast (batteries dying). :\ I was thinking about something rechargeable. I'll probably just get one of those emergency chargers, though I'm not really interested in recharging, just hotswapping. Some of them get pretty small too, and having more power wouldn't hurt. Just have to find one with rechargeable batteries itself. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Yeah, I think that would work. I don't know anything about electronics at that level, though. I make (a little) software, not hardware. :P Can someone suggest exactly what I need? ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
arne anka wrote: Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. afair, gsm still depends on battery and goes down the moment the battery is down (or wawy, in your case) -- and after hotswapping it seems not always to come back, according to a few reports. but it would be a nice addtion to the gta03-core design to include some kind of emergency battery for that very purpose. Shouldn't it be possible to reboot the GSM modem? As described on the flashing page: Power off the modem: r...@om-gta02:~# echo 0 /sys/bus/platform/devices/neo1973-pm-gsm.0/power_on r...@om-gta02:~# echo 1 /sys/bus/platform/devices/neo1973-pm-gsm.0/power_on r...@om-gta02:~# s3c24xx-gpio b7=0 r...@om-gta02:~# stty 0:4:18b2:8a00:0:0:7f:15:4:0:0:0:0:0:0:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0 -F /dev/ttySAC0 r...@om-gta02:~# stty 0:4:18b2:8a00:0:0:7f:15:4:0:0:0:0:0:0:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0 -F /dev/ttySAC0 r...@om-gta02:~# echo -en a...@poff\r /dev/ttySAC0; sleep 1; echo -en a...@poff\r /dev/ttySAC0 Then power it on again: r...@om-gta02:~# s3c24xx-gpio b7=1 The framework should be able to detect a battery hotswap and just force a modem reboot IMHO. Even better maybe to say 'I want to swap the battery' and power off the modem before removing the battery. -- Tobias PGP: http://9ac7e0bc.uguu.de ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Rebooting GSM modem (was: Re: Power dongle)
Tobias Diedrich ranma+openm...@tdiedrich.de writes: Shouldn't it be possible to reboot the GSM modem? As described on the flashing page: It's perfectly possible, yes. I just close Zhone, then i can take out the battery, change sim, then i place the battery back, start Zhone and it just works. Same for other programs requesting GSM resource. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Yeah, I would like a quick and easy app to hotswap. I currently shut down the modem from SHR Settings, and then swap and turn it back on. But an icon on the desktop that shuts it down, waits 15 seconds, then turns it on again would be great. Or maybe an actual GUI to manually turn it on or off. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
It just needs to provide the same power my laptop does via USB for a few seconds. Such a thing would not be hard to make, I'm sure. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
On Sun, Jun 7, 2009 at 9:44 PM, The Digital Pioneerdigitalpion...@gmail.com wrote: Hey, I don't know if something like this exists, but I'm wondering if anyone's seen one. Does anyone know of a little dongle that can store power to run the FR for like 15 seconds or something? http://www.ladyada.net/make/mintyboost/index.html Best regards, Laszlo ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. afair, gsm still depends on battery and goes down the moment the battery is down (or wawy, in your case) -- and after hotswapping it seems not always to come back, according to a few reports. but it would be a nice addtion to the gta03-core design to include some kind of emergency battery for that very purpose. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Yeah, I'd like to see that for GTA03. In the meantime, I just turn off GSM before swapping batts. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
Am Sonntag, 7. Juni 2009 22:04:52 schrieb arne anka: Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts a few seconds, but I'll search for emergency phone chargers. afair, gsm still depends on battery and goes down the moment the battery is down (or wawy, in your case) -- and after hotswapping it seems not always to come back, according to a few reports. but it would be a nice addtion to the gta03-core design to include some kind of emergency battery for that very purpose. ... or connect gsm power lines to some more flexible source? (Said not having seen the pcb or schematics once except blurry images) -- Marcel ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Power dongle
That would be nice, but I don't even have a soldering iron. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
