<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.6.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="127.94" y2="0" width="0" layer="20"/>
<wire x1="127.94" y1="0" x2="127.94" y2="19.39" width="0" layer="20"/>
<wire x1="127.94" y1="19.39" x2="0" y2="19.39" width="0" layer="20"/>
<wire x1="0" y1="19.39" x2="0" y2="0" width="0" layer="20"/>
<hole x="99.06" y="10.16" drill="2.9972"/>
<hole x="15.24" y="10.16" drill="2.9972"/>
<text>12V
VMOT</text>
<text>5V
LOGIC</text>
<text>A4988 --&gt;</text>
<text>ATMEGA328P</text>
<text>.1uF</text>
</plain>
<libraries>
<library name="SparkFun-Capacitors">
<description>&lt;h3&gt;SparkFun Capacitors&lt;/h3&gt;
This library contains capacitors. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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-KIT">
<description>&lt;h3&gt;CAP-PTH-SMALL-KIT&lt;/h3&gt;
Commonly used for small ceramic capacitors. Like our 0.1uF (http://www.sparkfun.com/products/8375) or 22pF caps (http://www.sparkfun.com/products/8571).&lt;br&gt;
&lt;br&gt;
&lt;b&gt;Warning:&lt;/b&gt; This is the KIT version of this package. This package has a smaller diameter top stop mask, which doesn't cover the diameter of the pad. This means only the bottom side of the pads' copper will be exposed. You'll only be able to solder to the bottom side.</description>
</package>
<package name="CPOL-RADIAL-2.5MM-6.5MM">
<description>2.5 mm spaced PTHs with 6.5 mm diameter outline</description>
</package>
</packages>
</library>
<library name="SparkFun-IC-Microcontroller">
<description>&lt;h3&gt;SparkFun Microcontrollers&lt;/h3&gt;
This library contains microcontrollers.
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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="DIP28">
<description>Standard 28-pin DIP package.&lt;br&gt;
IC needs to have legs bent before insertion.</description>
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Resistors&lt;/h3&gt;
This library contains resistors. Reference designator:R. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Connectors&lt;/h3&gt;
This library contains electrically-functional connectors. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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="1X08">
<description>&lt;h3&gt;Plated Through Hole -8 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:8&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_08&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="AUDIO_JACK_3.5MM_TRRS_SMD_RA">
<description>&lt;h3&gt;TRRS 3.5MM Right Angle Stereo Jack - SMT&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count: 4&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=”http://cdn.sparkfun.com/datasheets/Prototyping/20153.pdf”&gt;Datasheet referenced for footprint&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;AUDIO_JACK_TRRS&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="1X04">
<description>&lt;h3&gt;Plated Through Hole - 4 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:4&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_04&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="POWER_JACK_PTH">
<description>&lt;h3&gt;DC Barrel Power Jack/Connector PTH&lt;/h3&gt;
5.5mm jack, 2.1mm center pole diameter
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count: 3&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=”https://www.sparkfun.com/datasheets/Prototyping/Barrel-Connector-PJ-202A.pdf”&gt;Datasheet referenced for footprint&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;POWER_JACK&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="FTDI_BASIC">
<description>&lt;h3&gt;FTDI Basic &lt;/h3&gt;
Includes tDocu labels for end pins that match the FTDI Basic connection.
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count: 6&lt;/li&gt;
&lt;li&gt;Pin pitch: 0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;6_Pin_Serial_Cable&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="SparkFun-Capacitors" package="CAP-PTH-SMALL-KIT" value="0.1uF">
<attribute name="PROD_ID" value="CAP-08370"/>
</element>
<element name="U1" library="SparkFun-IC-Microcontroller" package="DIP28" value="328P">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="IC-09136"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.3" value="10k">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="RES-12183"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Capacitors" package="CAP-PTH-SMALL-KIT" value="0.1uF">
<attribute name="PROD_ID" value="CAP-08370"/>
</element>
<element name="J1" library="SparkFun-Connectors" package="1X08" value="">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-08438"/>
<attribute name="VALUE"/>
</element>
<element name="J2" library="SparkFun-Connectors" package="1X08" value="">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-08438"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="SparkFun-Capacitors" package="CPOL-RADIAL-2.5MM-6.5MM" value="100uF">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CAP-08439"/>
<attribute name="VALUE"/>
</element>
<element name="J3" library="SparkFun-Connectors" package="AUDIO_JACK_3.5MM_TRRS_SMD_RA" value="AUDIO_JACK_TRRSSMD_RA">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-10676"/>
<attribute name="SF_ID" value="PRT-12639"/>
<attribute name="VALUE"/>
</element>
<element name="J4" library="SparkFun-Connectors" package="1X04" value="">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-09696"/>
<attribute name="VALUE"/>
</element>
<element name="J5" library="SparkFun-Connectors" package="POWER_JACK_PTH" value="POWER_JACK">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-08197"/>
<attribute name="VALUE"/>
</element>
<element name="J6" library="SparkFun-Connectors" package="POWER_JACK_PTH" value="POWER_JACK">
<attribute name="NAME"/>
<attribute name="PROD_ID" value="CONN-08197"/>
<attribute name="VALUE"/>
</element>
<element name="J7" library="SparkFun-Connectors" package="FTDI_BASIC" value="6_PIN_SERIAL_CABLEPTH">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="VCC">
<contactref element="C1" pad="1"/>
<contactref element="U1" pad="7"/>
<contactref element="U1" pad="20"/>
<contactref element="R1" pad="P$2"/>
<contactref element="J1" pad="2"/>
<contactref element="J1" pad="3"/>
<contactref element="J1" pad="4"/>
<contactref element="J2" pad="2"/>
<contactref element="J3" pad="TIP"/>
<contactref element="J5" pad="PWR"/>
<contactref element="J7" pad="VCC"/>
</signal>
<signal name="GND">
<contactref element="C1" pad="2"/>
<contactref element="U1" pad="22"/>
<contactref element="U1" pad="8"/>
<contactref element="J2" pad="1"/>
<contactref element="J5" pad="GNDBREAK"/>
<contactref element="J5" pad="GND"/>
<contactref element="J7" pad="GND"/>
</signal>
<signal name="N$1">
<contactref element="R1" pad="P$1"/>
<contactref element="U1" pad="1"/>
<contactref element="C2" pad="2"/>
</signal>
<signal name="DTR">
<contactref element="C2" pad="1"/>
<contactref element="J7" pad="DTR"/>
</signal>
<signal name="ENABLE">
<contactref element="J1" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="J1" pad="5"/>
<contactref element="J1" pad="6"/>
</signal>
<signal name="STEP">
<contactref element="J1" pad="7"/>
<contactref element="U1" pad="15"/>
</signal>
<signal name="DIR">
<contactref element="J1" pad="8"/>
<contactref element="U1" pad="14"/>
</signal>
<signal name="1A">
<contactref element="J2" pad="3"/>
<contactref element="J4" pad="1"/>
</signal>
<signal name="1B">
<contactref element="J2" pad="4"/>
<contactref element="J4" pad="2"/>
</signal>
<signal name="2A">
<contactref element="J2" pad="5"/>
<contactref element="J4" pad="3"/>
</signal>
<signal name="2B">
<contactref element="J2" pad="6"/>
<contactref element="J4" pad="4"/>
</signal>
<signal name="MGND">
<contactref element="J2" pad="7"/>
<contactref element="C3" pad="2"/>
<contactref element="J6" pad="GNDBREAK"/>
<contactref element="J6" pad="GND"/>
</signal>
<signal name="VMOT">
<contactref element="J2" pad="8"/>
<contactref element="C3" pad="1"/>
<contactref element="J6" pad="PWR"/>
</signal>
<signal name="ANALOG">
<contactref element="U1" pad="16"/>
<contactref element="J3" pad="RING1"/>
</signal>
<signal name="SPEED">
<contactref element="U1" pad="17"/>
</signal>
<signal name="NOSEUP">
<contactref element="U1" pad="18"/>
<contactref element="J3" pad="RING2"/>
</signal>
<signal name="NOSEDN">
<contactref element="U1" pad="19"/>
<contactref element="J3" pad="EARTH"/>
</signal>
<signal name="CTS">
<contactref element="J7" pad="CTS"/>
</signal>
<signal name="RX">
<contactref element="J7" pad="TXO"/>
<contactref element="U1" pad="2"/>
</signal>
<signal name="TX">
<contactref element="J7" pad="RXI"/>
<contactref element="U1" pad="3"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
