[Vanhackspace] Vanhackspace Digest, Vol 21, Issue 6

[Derek Anderson]

And... I am an idiot. http://armyofevilrobots.com/bonsai_throbber_prototype

On Wed, Nov 11, 2009 at 1:37 PM, Derek Anderson <derek at chargedmultimedia.com
> wrote:

> Huzzah. I had posted the code and a picture online. AtTiny26L which would
> run for days or even weeks off of a button cell. Available in 5x5x1mm form
> factor. The code includes super low power mode for 3uA power consumption on
> average. LED consumption (and throb length/intensity) will be the main
> issue.
>
> You will need an avrisp or similar to use the code.
>
>
> On Wed, Nov 11, 2009 at 1:29 PM, Derek Anderson <
> derek at chargedmultimedia.com> wrote:
>
>> I actually built a small jewelry sized throbber with a small atmel chip
>> and a solarbotics cell. With careful circuit design you can get pretty low
>> power out of a MCU. Certainly a LOT lower than a 55x series timer. Nicer
>> fade effects too ;) There are rechargeable button cells out there...
>>
>>
>> On Wed, Nov 11, 2009 at 1:23 PM, Sandra K <newtmedia at gmail.com> wrote:
>>
>>> Hi all! Newbie lurker here.
>>>
>>> > 2) "Produce the light at the object"
>>> > Here the problem is that of size and weight - the circuitry has to be
>>> small (a 556 SMD with Rs and Cs is about 1cc in volume) and the battery has
>>> to be small enough to not be visible but powerful enough to last 'long
>>> enough'.
>>> >
>>> > I'd favour the LM3909 (lovely chip, very low component count, but hard
>>> to find) for long battery life and/or a surface mount 555 (or 556 at a push)
>>> for funkier effects - the triggers of the CMOS version would be sensitive
>>> enough for a tiny microphone to act as a trigger - scope for interaction
>>> there.
>>> >
>>> > Drive with two coin cells, job done.
>>> >
>>> > -JamesG
>>>
>>> Just wanted to mention it'd be awesome to have a workshop on LED
>>> jewelry. I have construction and design skills, but incorporating
>>> light in a non-bulky, interesting way is the challenge.
>>>
>>> Also, light boxes were mentioned and I thought of the therapeutic kind
>>> as well as photography boxes. A workshop to learn to make them low
>>> cost could be popular in Vancouver, where a lot of people have
>>> seasonal affective disorder and would like to try light therapy but
>>> can't afford $200 lamps. Is anyone with the skills interested in
>>> teaching that?
>>>
>>> http://www.day-lights.com/canadaindex.html
>>>
>>> Cheers,
>>> Sandra
>>> _______________________________________________
>>> Vanhackspace mailing list
>>> Vanhackspace at lists.uselessdegree.net
>>>
>>> http://lists.uselessdegree.net/listinfo.cgi/vanhackspace-uselessdegree.net
>>>
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.uselessdegree.net/pipermail/vanhackspace-uselessdegree.net/attachments/20091111/7bc8d43c/attachment.htm>