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User talk:Daveb: Difference between revisions
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Dave Brown playing for a while:) | Dave Brown playing for a while:) | ||
==Project | ==Project in slow progress== | ||
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|'''Project''' || '''Status''' || '''Notes''' | |'''Project''' || '''Status''' || '''Notes''' | ||
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|'''Low viscosity blood'''|| thoughts || I have some more reading to do; but am intrigued by http://customers.hbci.com/~wenonah/new/mcdaniel.htm and http://en.wikipedia.org/wiki/Integrated_Pulmonary_Index | |'''Low viscosity blood'''|| thoughts || I have some more reading to do; but am intrigued by http://customers.hbci.com/~wenonah/new/mcdaniel.htm and http://en.wikipedia.org/wiki/Integrated_Pulmonary_Index | ||
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|'''Make solar cell?'''|| idea || Link http://www.freewebs.com/acselectronics/TiO2solar.html | |} | ||
==Project Ideas== | |||
{|border="1" cellpadding="5" cellspacing="0" |'''Make solar cell?'''|| idea || Link http://www.freewebs.com/acselectronics/TiO2solar.html | |||
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|'''Safe by design nuclear'''|| meme || [http://www.youtube.com/watch?v=P9M__yYbsZ4 2 hour promo] | |'''Safe by design nuclear'''|| meme || [http://www.youtube.com/watch?v=P9M__yYbsZ4 2 hour promo] | ||
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|'''tricycle'''|| just a thought || Means of getting around... | |'''tricycle'''|| just a thought || Means of getting around... | ||
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|'''hack caliphers'''|| seen in sparkfun comments || Member #333257 | |||
If you measure current, you will see that the power off state draws 90% of the current of the power on state. For some reason, all electronic calipers seem to be this way- power off is actually display (only) off. THIS is why the batteries go bad quickly. | |||
I just open the caliper case, cut the battery trace (which one doesn’t matter), drill two holes to allow the fine (wire wrap) wire to come out the top to a micro-miniature slide switch glued to the top. I always turn the switch off, rather than press some caliper “off” button, and find that a button cell lasts for many years. I would attach a picture if Sparkfun allowed, but it doesn’t. Caliper thickness is unchanged, and the outline is very nearly unchanged. | |||
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