<div dir="ltr">Great, thanks for all the responses. Whoever is interested in working on the project, e-mail me off-list and I will set up a communication path. So far it's myself Katie B. and Nikolas. :D<br><br>Unfortunately you can not just randomly coil magnet wire and attach it to the uController, you have to tune the coil to make sure that it is set to the resonance frequency of your chip. (As Lorne had mentioned, you are correct btw. hehe) In this case, I think it's either 125kHz or 13.56mHz, I haven't played with the ST card too much but these are my guesses as they are either a vicinity or proximity style card.<br>
<br>Fortunately, I am in desperate need of antenna experience so that is perfect! I think we have all the necessary skills covered now but anyone else who would want to get involved feel free to e-mail me as well, the more the merrier.<br>
<br>My thought is that if we end up designing some clothing with embedded smarTrip cards, we could sell those to donate the money to the three organizations most of us are apart of (Dorkbot, MAKE and HacDC) and maybe buy a machine that all of us could use? CNC Milling, Plasma Cutter, etc. etc.<br>
<br>Hope that inspires some involvement ^^<br><br>Cheers,<br><br>-Q<br><br><div class="gmail_quote">On Tue, Jul 22, 2008 at 11:01 AM, Lorne Covington <<a href="mailto:lists@mediadog.com">lists@mediadog.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
Nikolas Coukouma wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
... I'm wondering if the problem<div class="Ih2E3d"><br>
is that there's an induction coil element to this, since the chip<br>
draws power from that (yes?).<br>
<br>
</div></blockquote>
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<br>
Exactly. It is not the overall length of the wire used for the antennae that is important; the loop size sets the frequency selectivity (resonance), and more loops get more power. At least that's what I seem to remember from the olden days... IANAEEBIPOOML (I am not an electrical engineer but I play one on mailing lists)<br>
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Ciao!<br><font color="#888888">
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- Lorne</font><div><div></div><div class="Wj3C7c"><br>
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.......dorkbot dc: people doing strange things with electricity.........<br>
................... <a href="http://dorkbot.org/dorkbotdc" target="_blank">http://dorkbot.org/dorkbotdc</a> .......................<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Andrew 'Q' Righter<br><br>Founder of the Q labs<br>Co-Founder of HacDC<br><br><br>[856] 625-4253<br><a href="mailto:andrew@i11industries.com">andrew@i11industries.com</a><br>
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