<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.7.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="36.195" y2="0" width="0" layer="20"/>
<wire x1="36.195" y1="0" x2="36.195" y2="19.04" width="0" layer="20"/>
<wire x1="36.195" y1="19.04" x2="0" y2="19.04" width="0" layer="20"/>
<wire x1="0" y1="19.04" x2="0" y2="0" width="0" layer="20"/>
<text>SparkSens 1.3</text>
<text>GND</text>
<text>SENS</text>
<text>+5V</text>
<text>OUT</text>
<text>1N4007      x2</text>
<text>1N4733</text>
<text>16 APR 2019</text>
<text>1N4733</text>
</plain>
<libraries>
<library name="diode">
<description>&lt;b&gt;Diodes&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Motorola : www.onsemi.com
&lt;li&gt;Fairchild : www.fairchildsemi.com
&lt;li&gt;Philips : www.semiconductors.com
&lt;li&gt;Vishay : www.vishay.de
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DO41-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2.54 mm, horizontal, grid 10.16 mm</description>
</package>
<package name="DO35-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 10.16 mm</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; CC v3.0 Share-Alike 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; CC v3.0 Share-Alike 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-ZENER">
</package>
</packages>
</library>
<library name="transistor">
<description>&lt;b&gt;Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92">
<description>&lt;b&gt;TO 92&lt;/b&gt;</description>
</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="2,15/1,0">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="74xx-eu">
<description>&lt;b&gt;TTL Devices, 74xx Series with European Symbols&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Texas Instruments &lt;i&gt;TTL Data Book&lt;/i&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Volume 1, 1996.
&lt;li&gt;TTL Data Book, Volume 2 , 1993
&lt;li&gt;National Seminconductor Databook 1990, ALS/LS Logic
&lt;li&gt;ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0
&lt;li&gt;http://icmaster.com/ViewCompare.asp
&lt;/ul&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-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-SMALL">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="D1" library="diode" package="DO41-10" value="1N4004"/>
<element name="D2" library="diode" package="DO41-10" value="1N4004"/>
<element name="D3" library="diode" package="DO35-10" value="1N4148DO35-10">
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.4" value="10K">
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="AXIAL-0.4" value="10K">
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="AXIAL-0.4" value="4.7K">
<attribute name="VALUE"/>
</element>
<element name="U$1" library="SparkFun-DiscreteSemi" package="DIODE-ZENER" value="DIODE-ZENERPTH">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="T1" library="transistor" package="TO92" value="2N3904">
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="100pF">
<attribute name="VALUE"/>
</element>
<element name="SENS1" library="wirepad" package="2,15/1,0" value="">
<attribute name="VALUE"/>
</element>
<element name="VCC" library="wirepad" package="2,15/1,0" value="">
<attribute name="VALUE"/>
</element>
<element name="GND" library="wirepad" package="2,15/1,0" value="">
<attribute name="VALUE"/>
</element>
<element name="OUT" library="wirepad" package="2,15/1,0" value="">
<attribute name="VALUE"/>
</element>
<element name="IC1" library="74xx-eu" package="DIL14" value="74LS14N">
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="1nF">
<attribute name="VALUE"/>
</element>
<element name="C3" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="1nF">
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="AXIAL-0.4" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun-Resistors" package="AXIAL-0.4" value="1M"/>
<element name="D5" library="diode" package="DO41-10" value="1N4004">
<attribute name="VALUE"/>
</element>
<element name="U$2" library="SparkFun-DiscreteSemi" package="DIODE-ZENER" value="DIODE-ZENERPTH"/>
</elements>
<signals>
<signal name="N$2">
<contactref element="D2" pad="C"/>
<contactref element="R2" pad="P$1"/>
</signal>
<signal name="N$3">
<contactref element="R2" pad="P$2"/>
<contactref element="D3" pad="A"/>
<contactref element="R1" pad="P$2"/>
<contactref element="C1" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="D3" pad="C"/>
<contactref element="T1" pad="2"/>
<contactref element="U$1" pad="P$1"/>
</signal>
<signal name="N$5">
<contactref element="T1" pad="1"/>
<contactref element="R3" pad="P$1"/>
<contactref element="IC1" pad="13"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="IC1" pad="12"/>
<contactref element="OUT" pad="1"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="GND">
<contactref element="T1" pad="3"/>
<contactref element="GND" pad="1"/>
<contactref element="R1" pad="P$1"/>
<contactref element="U$1" pad="P$2"/>
<contactref element="D1" pad="A"/>
<contactref element="C1" pad="1"/>
<contactref element="IC1" pad="7"/>
<contactref element="C2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="IC1" pad="11"/>
<contactref element="IC1" pad="10"/>
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="3"/>
<contactref element="IC1" pad="2"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC1" pad="9"/>
<contactref element="IC1" pad="5"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC1" pad="6"/>
<contactref element="R4" pad="P$1"/>
<contactref element="U$2" pad="P$2"/>
</signal>
<signal name="VCC">
<contactref element="R3" pad="P$2"/>
<contactref element="VCC" pad="1"/>
<contactref element="IC1" pad="14"/>
</signal>
<signal name="N$7">
<contactref element="SENS1" pad="1"/>
<contactref element="R5" pad="P$2"/>
<contactref element="D5" pad="A"/>
</signal>
<signal name="N$6">
<contactref element="D2" pad="A"/>
<contactref element="D1" pad="C"/>
<contactref element="D5" pad="C"/>
</signal>
<signal name="N$9">
<contactref element="R5" pad="P$1"/>
<contactref element="R4" pad="P$2"/>
<contactref element="U$2" pad="P$1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
