[Cyborg] Heart Spark!
slimavocado at gmail.com
Sat Dec 18 14:53:44 PST 2010
On Sat, Dec 18, 2010 at 11:34 AM, Matt Ho <matt.ho at gmail.com> wrote:
> Congrats! This looks great!
> On Dec 18, 2010, at 7:58 AM, Eric Boyd <mrericboyd at yahoo.com> wrote:
>> The Heart Spark pendant is finally ready! I've been working on various
>> versions of this thing for three months, and before that on various
>> versions of the "pulse choker" for like a year. I am happy to finally
>> have something to sell! It's been a super huge amount of fun making it,
>> of course, and I've learned so much. Thanks especially to Chung-Hay for
>> all the great hacking sessions at noisebridge, this project would never
>> have begun without you. Thanks also to Leigh, Ewan and Liz for
>> providing various forms of assistance at hacklab.
>> Believe it or not the Heart Spark code is running up close to the limits
>> of the Arduino (ATMEGA168) - there are 1300 lines of code, not including
>> the libraries I use! About half of them are the logging stuff, it's
>> quite complicated to get data into and out of the EEPROM in a way that
>> makes it useful later. But a good chunk of the code is also having many
>> different ways to blink the LEDs, and there is a lot of code that deals
>> with keeping power usage low, since the pendant only has a coin cell
>> providing energy... though much more work needs to happen on that front.
>> I'm hoping to get a logging version for sale sometime late January. I
>> interface so far, and also only "every heart beat" mode works right now
>> (the other "average heart beat each minute" would let you log data for
>> over a week before retrieving it, instead of needing to retrieve after 6
>> Anyway, I'm happy to answer any questions you might have.
>> p.s. Heart Spark made the makeblog!
>> I'm kinda sad that they picked such a poor image from the wide selection
>> that is available, but on the other hand that music video is pretty
>> awesome, I am thinking that I should recreate it :-).
>> Cyborg mailing list
>> Cyborg at lists.noisebridge.net
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