<div dir="ltr">I believe so. Just watch the temp ranges vs what you plan to measure. They vary on each of those. Looks like the cheap one would be fine! :D</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 2:52 PM, Josiah Ritchie <span dir="ltr"><<a href="mailto:josiah@josiahritchie.com" target="_blank">josiah@josiahritchie.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks Tyler. So to do this simply, I need to pick up a GE NTC 503 thermistor. <div><br></div><div>It would seem a search or RadioShack's website for thermistor shows only potentiometers. *sigh* I don't want a whole kit.</div>
<div><br></div><div>So digikey, is it safet to assume any of these three will work?</div><div><a href="http://www.digikey.com/scripts/dksearch/dksus.dll?k=NTC+503&vendor=0&mnonly=0&newproducts=0&ptm=0&fid=0&quantity=0&PV-1=45&PV866=43&PV69=867&stock=1" target="_blank">http://www.digikey.com/scripts/dksearch/dksus.dll?k=NTC+503&vendor=0&mnonly=0&newproducts=0&ptm=0&fid=0&quantity=0&PV-1=45&PV866=43&PV69=867&stock=1</a><br>
</div><div><br></div><div>JSR/</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 2:35 PM, Tyler Worman <span dir="ltr"><<a href="mailto:tsworman@novaslp.net" target="_blank">tsworman@novaslp.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Code states it is in fact a 50k thermistor. Specifically a <span style="white-space:pre-wrap">GE NTC 503. They skip the calibration entirely since they thought it to be decently accurate.</span><div>
<span style="white-space:pre-wrap"><br></span></div><div><span style="white-space:pre-wrap">code: </span><a href="https://raw.github.com/wnyc/sensors/master/arduino/temperature/temperature.ino" target="_blank">https://raw.github.com/wnyc/sensors/master/arduino/temperature/temperature.ino</a></div>
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 2:32 PM, Tyler Worman <span dir="ltr"><<a href="mailto:tsworman@novaslp.net" target="_blank">tsworman@novaslp.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">It doesn't say specifically. I quickly flipped through and see they build something with 50k of resistance which I presume is used as a voltage divider. So a 50k thermistor?<br>
<div><br></div><div>
Someone else want to check the diagram? I think the best photo of it was 29.. you can see where they hook the thermistor up at the bottom.</div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Mon, Apr 1, 2013 at 2:24 PM, Josiah Ritchie <span dir="ltr"><<a href="mailto:josiah@josiahritchie.com" target="_blank">josiah@josiahritchie.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">So does the code Dave's link uses on the Arduino assume a specific thermistor?</div><div>
<div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 2:08 PM, Tyler Worman <span dir="ltr"><<a href="mailto:tsworman@novaslp.net" target="_blank">tsworman@novaslp.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">The Steinhart-hart equation that can be used for calibration of thermistor and resistance isn't too bad to work through. I'd be happy to help if you have problems! We recently did it to write an Arduino based pid controller for wort heating/cooling. <div>
<br></div><div>Some places you buy thermistors from will even give you their tested beta value which makes it even easier (beta is okay for 0 to 100c).</div></div><div><div><div class="gmail_extra">
<br><br><div class="gmail_quote">
On Mon, Apr 1, 2013 at 1:46 PM, Will <span dir="ltr"><<a href="mailto:staticphantom@gmail.com" target="_blank">staticphantom@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Thermistors are just a pain in the butt due to calibration. That's the only issue. <div><br></div><div>-Will C</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 1:22 PM, Josiah Ritchie <span dir="ltr"><<a href="mailto:josiah@josiahritchie.com" target="_blank">josiah@josiahritchie.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">This might be a really fun thing to do with my kids to get them thinking about all sorts of science things from soil temperature to cicada life spans and intro to research.<div>
<br></div><div>I could probably get away with the thermistor that came with my multimeter right? I'd just need to wire my arduino up with binding posts to take the readings and if I put it all in a nice box, the kids could easily go out whenever they want and plug into the thermistor to take recordings. </div>
<div><br></div><div>Yeah, this sounds like simple, but highly beneficial fun. Thanks for sharing Dave!</div><div><br></div><div>JSR/</div></div><div class="gmail_extra"><div><div><br><br><div class="gmail_quote">
On Mon, Apr 1, 2013 at 12:14 PM, Will <span dir="ltr"><<a href="mailto:staticphantom@gmail.com" target="_blank">staticphantom@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">David, if you want... purchase the ethernet shield and the Arduino can tweet directly! <a href="http://playground.arduino.cc/Code/TwitterLibrary#Example" target="_blank">http://playground.arduino.cc/Code/TwitterLibrary#Example</a><div>
<br></div><div>-Will C</div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 1, 2013 at 12:02 PM, <span dir="ltr"><<a href="mailto:rsjames@ix.netcom.com" target="_blank">rsjames@ix.netcom.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><p><font color="#000000"><font><font face="Arial">I met a guy once who was interested in cicadas - as snacks!. He was a bit of a whack job... </font></font></font></p>
<p><font color="#000000"><font><font face="Arial"></font></font></font> </p><p>I also have a three step way of informing the public about the cicadas:</p><p>1. Listen for loud buzzing. If it sounds like there are millions cicadas buzzing, cicadas have arrived.</p>
<p>2. Look at a tree. If covered in cicadas, cicada have arrived.</p><p>3. Look outside. If giant, three-foot-long cicadas are attacking pets and small children, slamming into windows to break them, overturning cars, and creating general mayhem, Brood II cicadas have not arrived - you are in a bad horror movie!</p>
<p> </p><p>RSJ</p><p> </p><blockquote style="padding-left:5px;margin-left:0px;border-left-color:rgb(0,0,255);border-left-width:2px;border-left-style:solid"><div>-----Original Message-----
<br>From: Will <u></u>
<br>Sent: Apr 1, 2013 11:07 AM
<br>To: Build things for fun! <u></u>
<br>Subject: Re: [MakeLV] Arduino Cicada warning device
<br><br>If you have a laptop you can hook it up to, then there shouldn't be a<br>problem in displaying the data to the public. I'll ask some friends on the<br>IRC channels what they think, but worse comes to worse something can be<br>
linked to twitter. Hackaday has a lot of Arduino + twitter blog posts.<br><br>-Will C<br><br><br><br></div><div>On Mon, Apr 1, 2013 at 10:59 AM, David Smith <u></u> wrote:<br><br>> I bought one of the Radio Shack kits on sale after Christmas, so I'm<br>
> definitely going to have a go at it. I'm trying to figure out if I can do<br>> it at the Center and show the public the data.<br>><br>> Sent from my iPhone<br>><br></div><div>> On Apr 1, 2013, at 10:39 AM, Will <u></u> wrote:<br>
><br>> You know.... we do have the majority of the parts from the Arduino class<br>> at the space that we can build a prototype fairly quickly.<br>><br>> -Will C<br>><br>><br>> On Mon, Apr 1, 2013 at 10:13 AM, David Smith <<br>
> <a href="mailto:david@davincisciencecenter.org" target="_blank">david@davincisciencecenter.org</a>> wrote:<br>><br>>> Catch the buzz! Be prepared for Brood II<br>>><br>>><br>>> <a href="http://www.npr.org/blogs/thetwo-way/2013/04/01/175737170/its-almost-cicada-time-help-radiolab-track-swarmageddon?utm_source=NPR&utm_medium=facebook&utm_campaign=20130401" target="_blank">http://www.npr.org/blogs/thetwo-way/2013/04/01/175737170/its-almost-cicada-time-help-radiolab-track-swarmageddon?utm_source=NPR&utm_medium=facebook&utm_campaign=20130401</a><br>
>><br>>> Directions for the detector here: <a href="http://project.wnyc.org/cicadas/" target="_blank">http://project.wnyc.org/cicadas/</a><br>>><br>>> Dave<br>>><br>>> --<br>>> David L. Smith, Ph.D.<br>
>> Chief Scientist<br>>><br>>><br>>><br></div><div>>> 3145 Hamilton Blvd Bypass<br>>> Allentown, PA 18103-3686<br>>> <a href="tel:484-664-1002%20x111" value="+14846641002" target="_blank">484-664-1002 x111</a><br>
>> <a href="mailto:david@davincisciencecenter.org" target="_blank">david@davincisciencecenter.org</a><br>>> <a href="http://www.davincisciencecenter.org" target="_blank">http://www.davincisciencecenter.org</a><br>
>><br>>><br>>><br>>> <u></u><br>>><br></div><div>>> _______________________________________________<br>>> Makelehighvalley mailing list<br>>> <a href="mailto:Makelehighvalley@makelehighvalley.com" target="_blank">Makelehighvalley@makelehighvalley.com</a><br>
>><br>>> <a href="http://makelehighvalley.com/mailman/listinfo/makelehighvalley_makelehighvalley.com" target="_blank">http://makelehighvalley.com/mailman/listinfo/makelehighvalley_makelehighvalley.com</a><br>
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