<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.6.0">
<drawing>
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<plain>
<wire x1="8.763" y1="-2.921" x2="77.013" y2="-2.921" width="0" layer="20"/>
<wire x1="77.013" y1="-2.921" x2="77.14" y2="50.79" width="0" layer="20"/>
<wire x1="77.14" y1="50.79" x2="8.89" y2="50.79" width="0" layer="20"/>
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<hole x="68.326" y="48.26" drill="3.175"/>
<hole x="11.303" y="48.514" drill="3.175"/>
<hole x="11.811" y="-0.127" drill="3.175"/>
<hole x="67.818" y="-0.381" drill="3.175"/>
<hole x="47.625" y="48.006" drill="3.175"/>
<hole x="41.656" y="-0.381" drill="3.175"/>
<text>ISP</text>
<text>REV 1.1</text>
<text>Andrew T. Krill</text>
</plain>
<libraries>
<library name="A4988">
<packages>
<package name="PCB-MOUNT">
<description>Created for the A4988 stepper driver</description>
</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="DIL28-3">
<description>Standard 28-pin DIP package.&lt;br&gt;
IC needs to have legs bent before insertion.</description>
</package>
<package name="SSOP20_L">
<description>Longer version of SSOP-20 Package</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="USB-B-PTH">
<description>&lt;b&gt;USB Series B Hole Mounted&lt;/b&gt;</description>
</package>
<package name="2X3">
</package>
<package name="SCREWTERMINAL-5MM-2">
</package>
</packages>
</library>
<library name="SparkFun-FreqCtrl">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find crystals and oscillators and other things that go "tick".&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="RESONATOR-SMD">
</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="0805">
</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="0805">
</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="0805">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U$1" library="A4988" package="PCB-MOUNT" value="A4988_BREAKOUT"/>
<element name="U$2" library="A4988" package="PCB-MOUNT" value="A4988_BREAKOUT"/>
<element name="U1" library="SparkFun-DigitalIC" package="DIL28-3" value="ATMEGA328P_PDIP"/>
<element name="U2" library="SparkFun-DigitalIC" package="SSOP20_L" value="FTS31XS-U">
<attribute name="PROD_ID" value="IC-11524"/>
</element>
<element name="J1" library="SparkFun-Connectors" package="USB-B-PTH" value="USB-B">
<attribute name="PROD_ID" value="CONN-08278"/>
</element>
<element name="J2" library="SparkFun-Connectors" package="2X3" value=""/>
<element name="Y1" library="SparkFun-FreqCtrl" package="RESONATOR-SMD" value="16MHZ">
<attribute name="PROD_ID" value="XTAL-08900"/>
</element>
<element name="J3" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="J4" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="J5" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="J6" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="J7" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="J8" library="SparkFun-Connectors" package="SCREWTERMINAL-5MM-2" value="">
<attribute name="STOREFRONT_ID" value="PRT-08432"/>
</element>
<element name="R1" library="SparkFun-Passives" package="0805" value="10k"/>
<element name="C1" library="SparkFun-Capacitors" package="0805" value="100nF"/>
<element name="R2" library="SparkFun-Resistors" package="0805" value="27"/>
<element name="R3" library="SparkFun-Resistors" package="0805" value="27"/>
<element name="C2" library="SparkFun-Capacitors" package="0805" value="47pF"/>
<element name="C3" library="SparkFun-Capacitors" package="0805" value="47pf"/>
<element name="C4" library="SparkFun-Capacitors" package="0805" value="0.1uF"/>
<element name="C5" library="SparkFun-Capacitors" package="0805" value="100nF"/>
<element name="R4" library="SparkFun-Resistors" package="0805" value="1k"/>
<element name="R5" library="SparkFun-Resistors" package="0805" value="1k"/>
<element name="R6" library="SparkFun-Resistors" package="0805" value="4k7"/>
<element name="R7" library="SparkFun-Resistors" package="0805" value="10k"/>
<element name="C6" library="SparkFun-Capacitors" package="0805" value="10uF"/>
<element name="C7" library="SparkFun-Capacitors" package="0805" value="0.1uF"/>
<element name="C8" library="SparkFun-Capacitors" package="0805" value="0.1uF"/>
<element name="R8" library="SparkFun-Passives" package="0805" value="10k"/>
<element name="R9" library="SparkFun-Passives" package="0805" value="10k"/>
<element name="R10" library="SparkFun-Passives" package="0805" value="10k"/>
</elements>
<signals>
<signal name="N$19">
<contactref element="U1" pad="9"/>
<contactref element="Y1" pad="1"/>
</signal>
<signal name="N$20">
<contactref element="U1" pad="10"/>
<contactref element="Y1" pad="3"/>
</signal>
<signal name="+24V">
<contactref element="J8" pad="1"/>
<contactref element="U$2" pad="VMOT"/>
<contactref element="U$1" pad="VMOT"/>
</signal>
<signal name="+5V">
<contactref element="J7" pad="1"/>
<contactref element="U$1" pad="VDD"/>
<contactref element="U$2" pad="VDD"/>
<contactref element="U1" pad="20"/>
<contactref element="U1" pad="7"/>
<contactref element="R1" pad="2"/>
<contactref element="J2" pad="2"/>
<contactref element="U2" pad="15"/>
<contactref element="C6" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="C8" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="R9" pad="2"/>
<contactref element="R10" pad="2"/>
</signal>
<signal name="GND">
<contactref element="J7" pad="2"/>
<contactref element="J8" pad="2"/>
<contactref element="U$2" pad="GND2"/>
<contactref element="U$2" pad="GND"/>
<contactref element="U$1" pad="GND2"/>
<contactref element="U$1" pad="GND"/>
<contactref element="U1" pad="8"/>
<contactref element="U1" pad="22"/>
<contactref element="Y1" pad="2"/>
<contactref element="J2" pad="6"/>
<contactref element="U2" pad="6"/>
<contactref element="U2" pad="16"/>
<contactref element="C1" pad="2"/>
<contactref element="J1" pad="GND"/>
<contactref element="C2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="R7" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C8" pad="2"/>
</signal>
<signal name="MS1">
<contactref element="U$2" pad="MS1"/>
<contactref element="U$1" pad="MS1"/>
<contactref element="U1" pad="11"/>
</signal>
<signal name="MS2">
<contactref element="U$2" pad="MS2"/>
<contactref element="U$1" pad="MS2"/>
<contactref element="U1" pad="12"/>
</signal>
<signal name="MS3">
<contactref element="U$2" pad="MS3"/>
<contactref element="U$1" pad="MS3"/>
<contactref element="U1" pad="13"/>
</signal>
<signal name="!SLP">
<contactref element="U$1" pad="!SLP"/>
<contactref element="U$2" pad="!SLP"/>
<contactref element="U1" pad="6"/>
<contactref element="R10" pad="1"/>
</signal>
<signal name="!RST">
<contactref element="U$1" pad="!RST"/>
<contactref element="U$2" pad="!RST"/>
<contactref element="U1" pad="5"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="!EN">
<contactref element="U$1" pad="!EN"/>
<contactref element="U$2" pad="!EN"/>
<contactref element="U1" pad="4"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="DIR1">
<contactref element="U$1" pad="DIR"/>
<contactref element="U1" pad="23"/>
</signal>
<signal name="STEP1">
<contactref element="U$1" pad="STEP"/>
<contactref element="U1" pad="24"/>
</signal>
<signal name="DIR2">
<contactref element="U$2" pad="DIR"/>
<contactref element="U1" pad="25"/>
</signal>
<signal name="STEP2">
<contactref element="U$2" pad="STEP"/>
<contactref element="U1" pad="26"/>
</signal>
<signal name="RST">
<contactref element="U1" pad="1"/>
<contactref element="R1" pad="1"/>
<contactref element="J2" pad="5"/>
<contactref element="C7" pad="2"/>
</signal>
<signal name="MOSI">
<contactref element="J2" pad="4"/>
<contactref element="U1" pad="17"/>
</signal>
<signal name="MISO">
<contactref element="J2" pad="1"/>
<contactref element="U1" pad="18"/>
</signal>
<signal name="SCK">
<contactref element="J2" pad="3"/>
<contactref element="U1" pad="19"/>
</signal>
<signal name="N$1">
<contactref element="U2" pad="14"/>
<contactref element="C1" pad="1"/>
<contactref element="U2" pad="3"/>
<contactref element="U2" pad="13"/>
</signal>
<signal name="N$4_N">
<contactref element="J1" pad="D-"/>
<contactref element="R2" pad="2"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="N$4_P">
<contactref element="R3" pad="2"/>
<contactref element="J1" pad="D+"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="N$2_P">
<contactref element="R3" pad="1"/>
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</signal>
<signal name="N$2_N">
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<contactref element="R2" pad="1"/>
</signal>
<signal name="RX-I">
<contactref element="U1" pad="2"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="TX-O">
<contactref element="U1" pad="3"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="U2" pad="20"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="U2" pad="4"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="VBUS_SENSE">
<contactref element="U2" pad="18"/>
<contactref element="R6" pad="2"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="J1" pad="VBUS"/>
<contactref element="R6" pad="1"/>
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<signal name="DTR">
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<contactref element="C7" pad="1"/>
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<signal name="SS">
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