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Hey...<br><br>I've just uploaded a video to youtube of the WindPOV ... <br>I haven't got the sensor code running yet but everything else is working... <br>It seems that the SHT21 follows the actual I2C spec as opposed to the older SHT11 which is somewhat proprietary in it's interface.<br>There is an Arduino library for the SHT21 which should be easy to port... However, it's a bit slow to test as I have not included serial or LCD on this board... <br><br>You can see the video at youtube<a href="http://www.youtube.com/watch?v=CJ89A6P1ULQ"> http://www.youtube.com/watch?v=CJ89A6P1ULQ</a><br>Or on my website...<a href="http://krazatchu.ca/?page_id=198"> http://krazatchu.ca/?page_id=198</a><br><br>It's currently displaying my name until I get the temp & humidity sensor code going... <br><br>Michael... <br><hr id="stopSpelling">Date: Sun, 25 Jul 2010 15:36:26 -0400<br>From: john@thebestjohn.com<br>To: lab@artengine.ca<br>Subject: Re: [Lab] windPOV project<br><br>
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It's funny that you mention that! I just got my hands on several
steppers and the first thing I did was make a rectifier and power some
LEDs. Just a tip. you can cut the number of diodes you use in half by
pairing pins 1&3 and 2&4 on the same bridge because they are
both the same polarity at the same time I believe... One more
question... is that a hall effect sensor on there?<br>
<br>
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<pre><hr width="90%" size="4"><br>Today's Topics:<br><br> 1. WindPOV project... (krazatchu Grant)<br> </pre>
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[Lab] WindPOV project...</td>
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<div class="ecxheaderdisplayname" style="display: inline;">From: </div>
krazatchu Grant <a class="ecxmoz-txt-link-rfc2396E" href="mailto:krazatchu@hotmail.com"><krazatchu@hotmail.com></a></td>
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<div class="ecxheaderdisplayname" style="display: inline;">Date: </div>
Sat, 24 Jul 2010 21:08:08 -0400</td>
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<div class="ecxheaderdisplayname" style="display: inline;">To: </div>
<a class="ecxmoz-txt-link-rfc2396E" href="mailto:lab@artengine.ca"><lab@artengine.ca></a></td>
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<div class="ecxheaderdisplayname" style="display: inline;">To: </div>
<a class="ecxmoz-txt-link-rfc2396E" href="mailto:lab@artengine.ca"><lab@artengine.ca></a></td>
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Hey peoples... <br>
<br>
For the last day and half I've been working on a wind turbine powered
weather station using an 8 bit/LED POV on the spinning blades for the
display...<br>
I'm trying to one up the neighbors solar LEDs.. lol<br>
<br>
The stepper being used as a generator is mounted to the blades and the
shaft is held stationary to negate the need for slip rings... <br>
I have the hardware built and am currently working on the code. The
entire system is running under 5 volts (3.5v) which is a first for me...<br>
<br>
The project is semi-written up on my site here <a href="http://krazatchu.ca/?page_id=198%20"><span id="ecxPresenceContainer"></span>http://krazatchu.ca/?page_id=198 </a><br>
I will add the code and eagle files once it's finished... <br>
Let me know what you think...<br>
<br>
Michael<br>
<br>
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