<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.1.0">
<drawing>
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<wire x1="8.255" y1="4.445" x2="24.1175" y2="4.445" width="0" layer="20"/>
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<libraries>
<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="CAP-PTH-SMALL">
</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="1X03_LOCK">
</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="POT_ALPHA_RV16AF-20">
<description>Package for Alpha RV16AF-20 potentiometer</description>
</package>
</packages>
</library>
<library name="Misc">
<description>LT-Spice library generated with :&lt;br&gt;
import-ltspice.ulp&lt;br&gt;
from: E:/Programme/LTC/LTspiceIV/lib/sym/Misc/*.asy&lt;br&gt;
at 12.06.2012 10:26:07
&lt;p&gt;
2N5458.DEV&lt;br&gt;
2N7002.DEV&lt;br&gt;
BATTERY.DEV&lt;br&gt;
CELL.DEV&lt;br&gt;
DIAC.DEV&lt;br&gt;
DIP8.DEV&lt;br&gt;
DIP10.DEV&lt;br&gt;
DIP14.DEV&lt;br&gt;
DIP16.DEV&lt;br&gt;
DIP20.DEV&lt;br&gt;
EPOLY.DEV&lt;br&gt;
EUROPEANCAP.DEV&lt;br&gt;
EUROPEANPOLCAP.DEV&lt;br&gt;
EUROPEANRESISTOR.DEV&lt;br&gt;
FIXEDIND.DEV&lt;br&gt;
JUMPER.DEV&lt;br&gt;
NE555.DEV&lt;br&gt;
NEONBULB.DEV&lt;br&gt;
NIGBT.DEV&lt;br&gt;
PENTODE.DEV&lt;br&gt;
PIGBT.DEV&lt;br&gt;
SCR.DEV&lt;br&gt;
TETRODE.DEV&lt;br&gt;
TOWTOM2.DEV&lt;br&gt;
TRIAC.DEV&lt;br&gt;
TRIODE.DEV&lt;br&gt;
URC.DEV&lt;br&gt;
URC2.DEV&lt;br&gt;
XTAL.DEV&lt;br&gt;
XVARISTOR.DEV&lt;br&gt;</description>
<packages>
<package name="SOIC8">
<description>&lt;b&gt;Small Outline IC&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="DIODE-1N4148-KIT">
</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-0.3">
<description>&lt;h3&gt;AXIAL-0.3&lt;/h3&gt;
&lt;p&gt;Commonly used for 1/4W through-hole resistors. 0.3" pitch between holes.&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="SparkFun-Passives" package="CAP-PTH-SMALL" value="0.01uF"/>
<element name="C2" library="SparkFun-Passives" package="CAP-PTH-SMALL" value="680pF"/>
<element name="C3" library="SparkFun-Passives" package="CAP-PTH-SMALL" value="10uF"/>
<element name="C4" library="SparkFun-Passives" package="CAP-PTH-SMALL" value="0.1uF"/>
<element name="J1" library="SparkFun-Connectors" package="1X03_LOCK" value="0">
<attribute name="NAME"/>
</element>
<element name="X1" library="Misc" package="SOIC8" value="NE555">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="SparkFun-DiscreteSemi" package="DIODE-1N4148-KIT" value="">
<attribute name="PROD_ID" value="DIO-08378"/>
</element>
<element name="D2" library="SparkFun-DiscreteSemi" package="DIODE-1N4148-KIT" value="">
<attribute name="PROD_ID" value="DIO-08378"/>
</element>
<element name="RV2" library="SparkFun-Electromechanical" package="POT_ALPHA_RV16AF-20" value=""/>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.3" value="1k">
<attribute name="PROD_ID" value="RES-12182"/>
</element>
</elements>
<signals>
<signal name="OUT">
<contactref element="D1" pad="C"/>
<contactref element="D2" pad="A"/>
<contactref element="J1" pad="1"/>
<contactref element="R1" pad="P$1"/>
</signal>
<signal name="THRS">
<contactref element="C2" pad="1"/>
<contactref element="X1" pad="6"/>
<contactref element="RV2" pad="2"/>
</signal>
<signal name="+5V">
<contactref element="X1" pad="8"/>
<contactref element="X1" pad="4"/>
<contactref element="C3" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="J1" pad="2"/>
</signal>
<signal name="GND">
<contactref element="X1" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="X1" pad="7"/>
<contactref element="J1" pad="3"/>
</signal>
<signal name="CV">
<contactref element="X1" pad="5"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="LOOPD1">
<contactref element="RV2" pad="3"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="LOOPD2">
<contactref element="D2" pad="C"/>
<contactref element="RV2" pad="1"/>
</signal>
<signal name="OUTR">
<contactref element="R1" pad="P$2"/>
<contactref element="X1" pad="3"/>
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