Title: Solder time watch
Post by: octal on July 27, 2011, 04:06:06 pm
Post by: octal on July 27, 2011, 04:06:06 pm
could be amazing to develop something similar using a very low energy mcu
http://spikenzielabs.com/SpikenzieLabs/SolderTime.html (http://spikenzielabs.com/SpikenzieLabs/SolderTime.html)
An amazing competition could be to give a prize to the firmware that is extremely battery conservative :)
http://spikenzielabs.com/SpikenzieLabs/SolderTime.html (http://spikenzielabs.com/SpikenzieLabs/SolderTime.html)
An amazing competition could be to give a prize to the firmware that is extremely battery conservative :)
Title: Re: Solder time watch
Post by: arhi on July 27, 2011, 04:15:32 pm
Post by: arhi on July 27, 2011, 04:15:32 pm
going with glass display and some msp430F4xxx that has driver for glass lcd could put you in "many years operating from a single cr2032 battery" ... I for e.g. use CHRONOS (http://http://processors.wiki.ti.com/index.php/EZ430-Chronos?DCMP=Chronos&HQS=Other+OT+chronoswiki) for more then a year (got mine in march 2010) and battery is still full, and it not only work as a clock but also blue robin transciever, acelerometer ..
Title: Re: Solder time watch
Post by: octal on July 27, 2011, 04:22:23 pm
Post by: octal on July 27, 2011, 04:22:23 pm
CHRONOS is a nice product, the only pitty with it, is that you need to disassemble it to program it. If only TI added somekinf of RF bootloader to update onboard firmware this would have made it a killer product.
These days I'm looking geekely (:D) to inPulse watches http://www.getinpulse.com/ (http://www.getinpulse.com/)
These days I'm looking geekely (:D) to inPulse watches http://www.getinpulse.com/ (http://www.getinpulse.com/)
Title: Re: Solder time watch
Post by: arhi on July 27, 2011, 10:34:41 pm
Post by: arhi on July 27, 2011, 10:34:41 pm
takes 30sec to dissasemble it and attach it to usb so really not a big deal :D ... as for the bootloader over blue robin, it is possible..
pulse is nice but 3 times more expensive and goes trough battery faster then my cell phone .. on the other hand it does have ARM7 on board :) and big nice OLED :D ..
pulse is nice but 3 times more expensive and goes trough battery faster then my cell phone .. on the other hand it does have ARM7 on board :) and big nice OLED :D ..
Title: Re: Solder time watch
Post by: orcinus on August 01, 2011, 03:10:32 pm
Post by: orcinus on August 01, 2011, 03:10:32 pm
You don't need to disassemble the Chronos, it has a SimpliciTI bootloader that does the job wirelessly. Has had, for a year now, i think.
(and Pulse has a TFT, not an OLED, as far as i know)
(PS: Metawatch seems to be a much better option)
(and Pulse has a TFT, not an OLED, as far as i know)
(PS: Metawatch seems to be a much better option)
Title: Re: Solder time watch
Post by: arhi on August 01, 2011, 09:49:13 pm
Post by: arhi on August 01, 2011, 09:49:13 pm
didn't try the bootloader on chronos (have no problem dissasembling it) as for inPULSE check out http://www.getinpulse.com/features/ (http://www.getinpulse.com/features/) - they say OLED. I do not have one so I can't say but ..
Title: Re: Solder time watch
Post by: orcinus on August 02, 2011, 10:31:20 pm
Post by: orcinus on August 02, 2011, 10:31:20 pm
I've been wearing the Chronos for a week or so now regularly. Makes sense as a day-to-day watch with some of the firmwares available, so disassembling it is a nuisance for me. Anyways, the flashing set up via wireless bootloader is pretty easy - you just fire up the flasher, pick a .hex, enter the RF BSL mode on the watch and start it and away it goes.
Even has a neat little upload percentage counter on the watch display itself :)
BTW, check this project that's been brewing over at Watchuseek:
http://forums.watchuseek.com/f9/ezchron ... 98121.html (http://forums.watchuseek.com/f9/ezchronos-headcount-first-2011-project-start-498121.html)
Current version has temperature compensation (you have to measure the drift and calculate/fit the curve coefficients yourself, of course), sidereal time, 5 alarms, alti/bar mode with history and storm alarm, completely automatic DST with world time, decimal/quarter repeater, day and week of the year and tons of other goodies.
Re: inPulse, you're right, my bad! It really is an OLED screen. Don't have one either, i was judging by the video reviews, in which the screen look severely washed out and with a low viewing angle range. Almost like an STN LCD. Ick.
Even has a neat little upload percentage counter on the watch display itself :)
BTW, check this project that's been brewing over at Watchuseek:
http://forums.watchuseek.com/f9/ezchron ... 98121.html (http://forums.watchuseek.com/f9/ezchronos-headcount-first-2011-project-start-498121.html)
Current version has temperature compensation (you have to measure the drift and calculate/fit the curve coefficients yourself, of course), sidereal time, 5 alarms, alti/bar mode with history and storm alarm, completely automatic DST with world time, decimal/quarter repeater, day and week of the year and tons of other goodies.
Re: inPulse, you're right, my bad! It really is an OLED screen. Don't have one either, i was judging by the video reviews, in which the screen look severely washed out and with a low viewing angle range. Almost like an STN LCD. Ick.
Title: Re: Solder time watch
Post by: arhi on August 03, 2011, 01:52:23 pm
Post by: arhi on August 03, 2011, 01:52:23 pm
I do not usually ware a watch so that might explain it :D ... anyhow will check out the bootloader and some available firmwares ... I only did modifications myself I never follow up on what others have made :)
Title: Re: Solder time watch
Post by: arhi on August 04, 2011, 11:59:06 pm
Post by: arhi on August 04, 2011, 11:59:06 pm
quick update, I tried the wifi bootloader - works great :)
I also noticed that mine watch is working 86 weeks with its original battery :D (showing 2.8 - 2.9V now) and I used its wifi a lot (I have externals pulse meter that I use when excercising and for some testing, I also have two transcievers (usart and spi) that I use also ... ) ... I put the new battery in because with wifi bootloader who knows when will be the next time I open it :D
I also noticed that mine watch is working 86 weeks with its original battery :D (showing 2.8 - 2.9V now) and I used its wifi a lot (I have externals pulse meter that I use when excercising and for some testing, I also have two transcievers (usart and spi) that I use also ... ) ... I put the new battery in because with wifi bootloader who knows when will be the next time I open it :D