<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="31.42" y2="0" width="0" layer="20"/>
<wire x1="31.42" y1="0" x2="31.42" y2="38.09" width="0" layer="20"/>
<wire x1="31.42" y1="38.09" x2="0" y2="38.09" width="0" layer="20"/>
<wire x1="0" y1="38.09" x2="0" y2="0" width="0" layer="20"/>
<hole x="15.24" y="16.51" drill="2.99999375"/>
<hole x="3.175" y="3.175" drill="2.99999375"/>
</plain>
<libraries>
<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="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find connectors and sockets- basically anything that can be plugged into or onto.&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="1X02">
</package>
<package name="1X01">
</package>
</packages>
</library>
<library name="SparkFun-Passives">
<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-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="DIODE-1N4148">
</package>
</packages>
</library>
<library name="SparkFun-Retired">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find all manner of retired footprints for resistors, capacitors, board names, ICs, etc., that are no longer used in our catalog.&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="TACTILE-PTH">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="Volks73-Lite-On">
<description>&lt;h1&gt;Volks73's Library for Lite-On Parts&lt;/h1&gt;
&lt;p&gt;
&lt;a href="https://github.com/volks73/eagle-libraries/"&gt;Repository&lt;/a&gt;
&lt;/p&gt;
&lt;h3&gt;Licensing:&lt;/h3&gt; 
&lt;p&gt;
Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0), &lt;a href="http://creativecommons.org/licenses/by-sa/3.0/"&gt;http://creativecommons.org/licenses/by-sa/3.0/&lt;/a&gt;. 
&lt;/p&gt;
&lt;p&gt;
For attribution, please provide a link in any documentation or design files to the repository on Github. 
&lt;/p&gt;</description>
<packages>
<package name="T-1_3MM">
<description>&lt;h1&gt;Radial 3.00mm Lead Spacing&lt;/h1&gt;
&lt;h2&gt;Round with Domed Top, 3mm&lt;/h2&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="linear" package="DIL14" value="LM339N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="COIL_A" library="SparkFun-Connectors" package="1X02" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Passives" package="AXIAL-0.4" value="100">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="SparkFun-DiscreteSemi" package="DIODE-1N4148" value=""/>
<element name="PULSE" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="VCC" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Passives" package="AXIAL-0.4" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CAL_BTN" library="SparkFun-Retired" package="TACTILE-PTH" value="">
<attribute name="NAME"/>
</element>
<element name="CAL" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Passives" package="AXIAL-0.4" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Passives" package="AXIAL-0.4" value="330">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED1" library="Volks73-Lite-On" package="T-1_3MM" value="">
<attribute name="SUPPLIER_ITEM_INFO" value="http://www.digikey.com/product-detail/en/LTL-4231N/160-1142-ND/214440"/>
<attribute name="MOUNTING_TYPE" value="Through Hole"/>
<attribute name="LUMINOUS_FLUX" value="-"/>
<attribute name="PACKAGE" value="Radial"/>
<attribute name="CATEGORY" value="Optoelectronics"/>
<attribute name="SUPPLIER_ITEM_LINK" value="&lt;a href=&quot;http://www.digikey.com/product-search/en?KeyWords=160-1142-ND&amp;WT.z_header=search_go&quot;&gt;Details&lt;/a&gt;"/>
<attribute name="DOCUMENTATION_LINK" value="&lt;a href=&quot;http://media.digikey.com/photos/Lite%20On%20Photos/LTL-4231N.jpg&quot;&gt;Datasheet&lt;/a&gt;"/>
<attribute name="LENS_TYPE" value="Diffused, Tinted"/>
<attribute name="COLOR" value="Green"/>
<attribute name="WAVELENGTH-PEAK" value="565nm"/>
<attribute name="SUPPLIER_LINK" value="&lt;a href=&quot;http://www.digikey.com&quot;&gt;Home Page&lt;/a&gt;"/>
<attribute name="SUPPLIER_URL" value="http://www.digikey.com"/>
<attribute name="HEIGHT" value="4.45mm"/>
<attribute name="VOLTAGE-FORWARD" value="2.1V"/>
<attribute name="LENS_STYLE" value="Round with Domed Top, 3mm, T-1"/>
<attribute name="DOCUMENTATION_URL" value="http://media.digikey.com/photos/Lite%20On%20Photos/LTL-4231N.jpg"/>
<attribute name="PART_NUMBER" value="LTL-4231N"/>
<attribute name="WAVELENGTH-DOMINANT" value="569nm"/>
<attribute name="FAMILY" value="ED Indication - Discrete"/>
<attribute name="MANUFACTURER" value="Lite-On Inc"/>
<attribute name="SUPPLIER_ITEM_URL" value="http://www.digikey.com/product-search/en?KeyWords=160-1142-ND&amp;WT.z_header=search_go"/>
<attribute name="SUPPLIER_ITEM_NUMBER" value="160-1142-ND"/>
<attribute name="VIEWING-ANGLE" value="60"/>
<attribute name="MILLICANDELA_RATING" value="12.5mcd"/>
<attribute name="DESCRIPTION" value="LED 3MM GREEN DIFFUSED"/>
<attribute name="CURRENT-TEST" value="10mA"/>
<attribute name="SIZE" value="-"/>
<attribute name="SUPPLIER_NAME" value="Digi-Key"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CAP_N" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CAP_P" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="OUT" library="SparkFun-Connectors" package="1X01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="IC1" pad="12"/>
<contactref element="CAL_BTN" pad="3"/>
<contactref element="R4" pad="P$2"/>
<contactref element="GND" pad="1"/>
<contactref element="CAP_N" pad="1"/>
<contactref element="COIL_A" pad="2"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$3">
<contactref element="D1" pad="C"/>
<contactref element="R1" pad="P$2"/>
</signal>
<signal name="N$4">
<contactref element="PULSE" pad="1"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="N$8">
<contactref element="CAL_BTN" pad="1"/>
<contactref element="CAL" pad="1"/>
<contactref element="R3" pad="P$1"/>
</signal>
<signal name="N$7">
<contactref element="LED" pad="1"/>
<contactref element="LED1" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="LED1" pad="2"/>
<contactref element="R4" pad="P$1"/>
</signal>
<signal name="N$1">
<contactref element="R1" pad="P$1"/>
<contactref element="COIL_A" pad="1"/>
<contactref element="IC1" pad="6"/>
<contactref element="CAP_P" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="IC1" pad="3"/>
<contactref element="VCC" pad="1"/>
<contactref element="R2" pad="P$2"/>
<contactref element="R3" pad="P$2"/>
</signal>
<signal name="OUT">
<contactref element="IC1" pad="1"/>
<contactref element="R2" pad="P$1"/>
<contactref element="OUT" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
