<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.3.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="27.94" x2="63.17" y2="27.94" width="0" layer="20"/>
<wire x1="63.17" y1="27.94" x2="63.17" y2="80" width="0" layer="20"/>
<wire x1="63.17" y1="80" x2="0" y2="80" width="0" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="27.94" width="0" layer="20"/>
<hole x="3.81" y="76.2" drill="3.2"/>
<hole x="59.69" y="76.2" drill="3.2"/>
<hole x="59.69" y="31.75" drill="3.2"/>
<hole x="3.81" y="31.75" drill="3.2"/>
<text>SPAC Optical Lab    www.TelescopeLab.com
Dew Heater Controller v3a</text>
<text>1 POT</text>
<text>2 POTs</text>
<text>POT1</text>
<text>POT2</text>
<text>+</text>
<text>+</text>
<hole x="60.706" y="61.976" drill="2.8"/>
<hole x="60.706" y="70.104" drill="2.8"/>
<text>AM 7/2015</text>
<text>Requires
Programmed
PIC 16F88</text>
<hole x="47.244" y="31.75" drill="3.2"/>
<hole x="47.244" y="76.2" drill="3.2"/>
<text>(BATTERY)</text>
<text>+</text>
<hole x="54.356" y="58.674" drill="2.8"/>
<hole x="54.356" y="49.53" drill="2.8"/>
<hole x="9.144" y="49.53" drill="2.8"/>
<hole x="9.144" y="58.674" drill="2.8"/>
</plain>
<libraries>
<library name="SparkFun-Capacitors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="CAP-PTH-5MM">
</package>
<package name="CPOL-RADIAL-10UF-25V">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-LED">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete LEDs for illumination or indication, but no displays.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="AXIAL-0.4">
<description>1/4W Resistor, 0.4" wide&lt;p&gt;

Yageo CFR series &lt;a href="http://www.yageo.com/pdf/yageo/Leaded-R_CFR_2008.pdf"&gt;http://www.yageo.com/pdf/yageo/Leaded-R_CFR_2008.pdf&lt;/a&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Electromechanical">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find anything that moves- switches, relays, buttons, potentiometers. Also, anything that goes on a board but isn't electrical in nature- screws, standoffs, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="ALPS_POT">
</package>
</packages>
</library>
<library name="SparkFun-DigitalIC">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find all manner of digital ICs- microcontrollers, memory chips, logic chips, FPGAs, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="DIL18">
<description>&lt;B&gt;Dual In Line&lt;/B&gt;&lt;p&gt;
 package type P</description>
</package>
</packages>
</library>
<library name="linear">
<description>&lt;b&gt;Linear Devices&lt;/b&gt;&lt;p&gt;
Operational amplifiers,  comparators, voltage regulators, ADCs, DACs, etc.&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO220V">
<description>&lt;b&gt;TO 200 vertical&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-DiscreteSemi">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete semiconductors- transistors, diodes, TRIACs, optoisolators, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="TO220V">
<description>&lt;b&gt;TO 220 Vertical&lt;/b&gt; Package works with various parts including N-Channel MOSFET SparkFun SKU: COM-10213</description>
</package>
<package name="DIODE-1N4001">
</package>
</packages>
</library>
<library name="wirepad">
<description>&lt;b&gt;Single Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="4,16O1,6">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-PowerIC">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find drivers, regulators, and amplifiers.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="PTC">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C2" library="SparkFun-Capacitors" package="CAP-PTH-5MM" value=".1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED2" library="SparkFun-LED" package="LED3MM" value="RED">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="POT1_10K" library="SparkFun-Electromechanical" package="ALPS_POT" value="10K"/>
<element name="PIC" library="SparkFun-DigitalIC" package="DIL18" value="PIC16F88-DIP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="POT2_10K" library="SparkFun-Electromechanical" package="ALPS_POT" value="10K"/>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED1" library="SparkFun-LED" package="LED3MM" value="RED">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP1" library="adafruit" package="1X03" value="POTSELECT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LM7805" library="linear" package="TO220V" value="+5v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MOSFET1" library="SparkFun-DiscreteSemi" package="TO220V" value="FQP30N06L">
<attribute name="PROD_ID" value="TRANS-10060"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MOSFET2" library="SparkFun-DiscreteSemi" package="TO220V" value="FQP30N06L">
<attribute name="PROD_ID" value="TRANS-10060"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="CPOL-RADIAL-10UF-25V" value="10uf 25v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED3" library="SparkFun-LED" package="LED3MM" value="YELLOW">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="+12V" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="GND" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1A+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1A-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1B+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1C+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1D+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1B-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1C-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA1D-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2A+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2A-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2B+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2B-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2C+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2C-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2D+" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="RCA2D-" library="wirepad" package="4,16O1,6" value="PAD1,6">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R9" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="SparkFun-Resistors" package="AXIAL-0.4" value="22k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="SparkFun-Resistors" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="F1" library="SparkFun-PowerIC" package="PTC" value="RUEF400">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="SparkFun-DiscreteSemi" package="DIODE-1N4001" value="1N4001">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="12V">
<contactref element="R1" pad="P$2"/>
<contactref element="R2" pad="P$2"/>
<contactref element="RCA1A+" pad="1"/>
<contactref element="RCA1B+" pad="1"/>
<contactref element="RCA1D+" pad="1"/>
<contactref element="RCA1C+" pad="1"/>
<contactref element="RCA2A+" pad="1"/>
<contactref element="RCA2B+" pad="1"/>
<contactref element="RCA2C+" pad="1"/>
<contactref element="RCA2D+" pad="1"/>
<contactref element="R7" pad="P$2"/>
<contactref element="F1" pad="P$2"/>
<contactref element="C1" pad="1"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="VDD">
<contactref element="C2" pad="1"/>
<contactref element="PIC" pad="14"/>
<contactref element="R5" pad="P$1"/>
<contactref element="R4" pad="P$2"/>
<contactref element="LM7805" pad="3"/>
<contactref element="POT2_10K" pad="P$1"/>
<contactref element="POT1_10K" pad="P$1"/>
</signal>
<signal name="GND">
<contactref element="PIC" pad="5"/>
<contactref element="C2" pad="2"/>
<contactref element="LM7805" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="JP1" pad="3"/>
<contactref element="MOSFET1" pad="3"/>
<contactref element="R6" pad="P$1"/>
<contactref element="MOSFET2" pad="3"/>
<contactref element="R3" pad="P$1"/>
<contactref element="LED3" pad="K"/>
<contactref element="GND" pad="1"/>
<contactref element="R8" pad="P$1"/>
<contactref element="POT2_10K" pad="P$3"/>
<contactref element="POT1_10K" pad="P$3"/>
</signal>
<signal name="N$1">
<contactref element="PIC" pad="17"/>
<contactref element="POT1_10K" pad="P$2"/>
</signal>
<signal name="N$4">
<contactref element="PIC" pad="18"/>
<contactref element="POT2_10K" pad="P$2"/>
</signal>
<signal name="N$12">
<contactref element="PIC" pad="4"/>
<contactref element="R5" pad="P$2"/>
</signal>
<signal name="N$2">
<contactref element="R4" pad="P$1"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="N$14">
<contactref element="JP1" pad="2"/>
<contactref element="PIC" pad="16"/>
</signal>
<signal name="N$5">
<contactref element="MOSFET1" pad="2"/>
<contactref element="LED1" pad="K"/>
<contactref element="RCA1A-" pad="1"/>
<contactref element="RCA1B-" pad="1"/>
<contactref element="RCA1C-" pad="1"/>
<contactref element="RCA1D-" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R1" pad="P$1"/>
<contactref element="LED1" pad="A"/>
</signal>
<signal name="N$3">
<contactref element="R2" pad="P$1"/>
<contactref element="LED2" pad="A"/>
</signal>
<signal name="N$10">
<contactref element="LED2" pad="K"/>
<contactref element="MOSFET2" pad="2"/>
<contactref element="RCA2A-" pad="1"/>
<contactref element="RCA2B-" pad="1"/>
<contactref element="RCA2C-" pad="1"/>
<contactref element="RCA2D-" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="R3" pad="P$2"/>
<contactref element="MOSFET2" pad="1"/>
<contactref element="PIC" pad="8"/>
</signal>
<signal name="N$11">
<contactref element="R6" pad="P$2"/>
<contactref element="MOSFET1" pad="1"/>
<contactref element="PIC" pad="7"/>
</signal>
<signal name="N$7">
<contactref element="PIC" pad="2"/>
<contactref element="R7" pad="P$1"/>
<contactref element="R8" pad="P$2"/>
</signal>
<signal name="N$9">
<contactref element="PIC" pad="6"/>
<contactref element="R9" pad="P$2"/>
</signal>
<signal name="N$13">
<contactref element="LED3" pad="A"/>
<contactref element="R9" pad="P$1"/>
</signal>
<signal name="12VA">
<contactref element="+12V" pad="1"/>
<contactref element="F1" pad="P$1"/>
</signal>
<signal name="N$15">
<contactref element="D1" pad="C"/>
<contactref element="LM7805" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
