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Re:Durr: A shivering unisex bracelet that investigates our p... by blhack on Friday January 03, 2014 @04:04PM (#7008122)
Anybody that wants one of these: this looks like it would be /trivially/ easy to build. An attiny85 and a vibration motor would do it.

The only "hard" part would be fitting a battery in this form factor.

Go to your local hackerspace during some open hours, and tell the hackers you want to build one of these. I bet they'll do it with you!

(Hell: I'LL do it with you if you come down to heatsync labs [in Phoenix])

Re:Durr: A shivering unisex bracelet that investigates our p... by GusClark on Friday January 03, 2014 @05:29PM (#7008684)
I was thinking that it would be easy to add this functionality to my pebble watch.
Re:Durr: A shivering unisex bracelet that investigates our p... by DanitaBaires on Saturday January 04, 2014 @08:06AM (#7010940)
I was exactly what I thought. Is there any "watchapp" that does this?
Re:Durr: A shivering unisex bracelet that investigates our p... by metalcring on Saturday January 04, 2014 @10:39AM (#7011376)
There is an interval trainer app for running but I think it will work for this. Set it up for 5 minute intervals and you should get a similar functionality. The only thing is it won't run in the background so you have to keep the app open.
Re:Durr: A shivering unisex bracelet that investigates our p... by stevewillows on Friday January 03, 2014 @06:12PM (#7008920)
Would it be possible to make a fully analog version of this by tearing apart an old kinetic watch?
Re:Durr: A shivering unisex bracelet that investigates our p... by whatshisface on Friday January 03, 2014 @07:22PM (#7009194)
I'd imagine the vibration would quickly drain the energy stored in an analog watch's spring.
Re:Durr: A shivering unisex bracelet that investigates our p... by ilyanep on Friday January 03, 2014 @04:28PM (#7008319)
I'm not a hardware person; could you explain to me why a watch battery wouldn't work in this case. Is it just too low power?
Re:Durr: A shivering unisex bracelet that investigates our p... by blhack on Friday January 03, 2014 @04:53PM (#7008491)
It would work! A cr2032 is a super common "coin cell" battery that we use for all kinds of stuff.

The "problem" with this is how long it will run for. A watch battery, or a coin cell doesn't have much current capacity.

Re:Durr: A shivering unisex bracelet that investigates our p... by 14113 on Friday January 03, 2014 @06:14PM (#7008929)
You can also get specifically low powered attiny chips as well, so a cr2032 would be more than sufficent to power it for a number of months.
Re:Durr: A shivering unisex bracelet that investigates our p... by rgbrenner on Friday January 03, 2014 @06:47PM (#7009042)
If you look at the picture below "Made in Oslo".. you'll see a cr2032 battery.
Re:Durr: A shivering unisex bracelet that investigates our p... by mcantelon on Friday January 03, 2014 @04:14PM (#7008190)
Probably a lipoly battery this size would work.
Re:Durr: A shivering unisex bracelet that investigates our p... by warmwaffles on Friday January 03, 2014 @07:53PM (#7009334)
That sounds super dangerous. I would not put a lipoly battery on my arm. No thank you, I'll take my chances with another battery type.
Re:Durr: A shivering unisex bracelet that investigates our p... by mcantelon on Saturday January 04, 2014 @02:54AM (#7010416)
People put lipoly batteries to their faces each day (in phones), so probably not that big a danger.