you should ask the guys over at makezine.com they are always hacking stuff like this!
On 4/29/07, b_s-wilk <[EMAIL PROTECTED]> wrote:
I have two of those oversized calculators that I got on sale for $1 each. A few of those could work. You may find other parts inside that can be useful on other projects. I have some left over solar panels from AstroPower that are 6x6 and 8x8 that I use to recharge batteries for outdoor lights, but I forgot about the tiny calc cells. Thanks for the reminder. Any idea how to wire an LED to the cell? Where to solder? Pix? Oh it's so much fun to take things apart and rearrange them [when it works]!! Dan, PLEASE tell us how you solve this. Betty >> >My questions would be: How big physically would a solar cell be that >> >was capable of providing power for LED's and where would one look for >> >such and are they terribly expensive? > > Radio Shack. > $5 Can produce 300ma @ 0.5 volts. > $15 Can produce 50ma @ 6.0 volts. > > I have an old calculator that is powered by 5 cells in series. It cost > about $5 and works in fairly dim light. Finding something like this might > be cheaper than buying parts. > > ************************************************************************ * ==> QUICK LIST-COMMAND REFERENCE - Put the following commands in <== * ==> the body of an email & send 'em to: [EMAIL PROTECTED] <== * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] ************************************************************************ * List archive at www.mail-archive.com/[email protected]/ * RSS at www.mail-archive.com/[email protected]/maillist.xml * Messages bearing the header "X-No-Archive: yes" will not be archived ************************************************************************
-- may God be kind to you. may he give you peace. may he love you very much. jude .2 gmail from josh byrd http://joshbyrd.blogspot.com http://sparkyphilms.blogspot.com ************************************************************************ * ==> QUICK LIST-COMMAND REFERENCE - Put the following commands in <== * ==> the body of an email & send 'em to: [EMAIL PROTECTED] <== * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] ************************************************************************ * List archive at www.mail-archive.com/[email protected]/ * RSS at www.mail-archive.com/[email protected]/maillist.xml * Messages bearing the header "X-No-Archive: yes" will not be archived ************************************************************************
