<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.2.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="22.86" x2="0" y2="2.54" width="0" layer="20"/>
<wire x1="0" y1="2.54" x2="2.54" y2="0" width="0" layer="20" curve="90"/>
<wire x1="2.54" y1="0" x2="106.68" y2="0" width="0" layer="20"/>
<wire x1="106.68" y1="0" x2="109.22" y2="2.54" width="0" layer="20" curve="90"/>
<wire x1="109.22" y1="2.54" x2="109.22" y2="22.86" width="0" layer="20"/>
<wire x1="109.22" y1="22.86" x2="106.68" y2="25.4" width="0" layer="20" curve="90"/>
<wire x1="106.68" y1="25.4" x2="2.54" y2="25.4" width="0" layer="20"/>
<wire x1="2.54" y1="25.4" x2="0" y2="22.86" width="0" layer="20" curve="90"/>
<text>SW1</text>
<text>SW2</text>
<text>SW3</text>
<text>SW4</text>
<text>C3</text>
<text>R3</text>
<text>R2</text>
<text>D1</text>
<text>C1</text>
<text>C2</text>
<text>C4</text>
<text>C5</text>
<text>Y1</text>
<text>U1</text>
<text>Q1</text>
<text>R4</text>
<text>R5</text>
<text>R6</text>
<text>R7</text>
<text>Cherry MX Keypad</text>
<text>ATMEGA
32U4</text>
<text>By: Dan Watson  6/4/16   Rev B   syncchannel.blogspot.com</text>
<text>R1</text>
<text>ISP</text>
<hole x="48.26" y="12.7" drill="3"/>
<hole x="88.9" y="12.7" drill="3"/>
</plain>
<libraries>
<library name="SparkFun-Electromechanical2">
<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="CHERRY-MX-LED">
<description>&lt;h3&gt;Cherry MX Switch - Electromechanical Swith w/ LED&lt;/h3&gt;

&lt;p&gt;Cherry MX Keyswitches are top-of-the-line mechanical keyboard switches. They’re satisfyingly “clicky”, reliable up to tens-of-millions of key presses, and a standard in gaming and programming keyboards across the globe. This ‘blue’ version Cherry MX Switch is favored by most due to its secondary internal actuator making it less likely to “double-tap.” If you are looking for a noticeably audible and high-quality key switch, this is the perfect option for you!&lt;/p&gt;

&lt;p&gt;&lt;a href="https://www.sparkfun.com/products/13834"&gt;SparkFun Product Link&lt;/a&gt;&lt;/p&gt;</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="TQFP44">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="R0603">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
<package name="C0603">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</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="SOD-323">
</package>
<package name="SOT23-3">
</package>
</packages>
</library>
<library name="daspilker">
<description>&lt;b&gt;Daniel Spilker's Eagle Library&lt;/b&gt;
&lt;p&gt; The latest version of this library can be downloaded at
&lt;a href="https://github.com/daspilker/daspilker-eagle-library"&gt;https://github.com/daspilker/daspilker-eagle-library&lt;/a&gt;.
&lt;p&gt;
&lt;a href="http://daniel-spilker.com/"&gt;http://daniel-spilker.com/&lt;/a&gt;</description>
<packages>
<package name="FCI-10103594-0001LF">
<description>FCI 10103594-0001LF RA SMD USB Micro Type B Receptable</description>
</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="CRYSTAL-SMD-5X3">
</package>
</packages>
</library>
<library name="SparkFun-Aesthetics">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find non-functional items- supply symbols, logos, notations, frame blocks, 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="OSHW-LOGO-M">
</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="2X3">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="S1" library="SparkFun-Electromechanical2" package="CHERRY-MX-LED" value="CHERRY-MX-LED">
<attribute name="SF_ID" value="COM-13834"/>
</element>
<element name="S2" library="SparkFun-Electromechanical2" package="CHERRY-MX-LED" value="CHERRY-MX-LED">
<attribute name="SF_ID" value="COM-13834"/>
</element>
<element name="U$1" library="SparkFun-DigitalIC" package="TQFP44" value="ATMEGA32U4TQFP-44"/>
<element name="R3" library="adafruit" package="R0603" value="20"/>
<element name="R2" library="adafruit" package="R0603" value="20"/>
<element name="D1" library="SparkFun-DiscreteSemi" package="SOD-323" value="BAT20J">
<attribute name="PROD_ID" value="DIO-11623"/>
</element>
<element name="JP3" library="daspilker" package="FCI-10103594-0001LF" value="USB-RECEPTABLE"/>
<element name="R4" library="adafruit" package="R0603" value="330"/>
<element name="C3" library="adafruit" package="C0603" value="1uF"/>
<element name="Y1" library="SparkFun-FreqCtrl" package="CRYSTAL-SMD-5X3" value="16MHz">
<attribute name="PROD_ID" value="XTAL-08218"/>
</element>
<element name="C4" library="adafruit" package="C0603" value="22pF"/>
<element name="C5" library="adafruit" package="C0603" value="22pF"/>
<element name="R5" library="adafruit" package="R0603" value="330"/>
<element name="S3" library="SparkFun-Electromechanical2" package="CHERRY-MX-LED" value="CHERRY-MX-LED">
<attribute name="SF_ID" value="COM-13834"/>
</element>
<element name="R6" library="adafruit" package="R0603" value="330"/>
<element name="S4" library="SparkFun-Electromechanical2" package="CHERRY-MX-LED" value="CHERRY-MX-LED">
<attribute name="SF_ID" value="COM-13834"/>
</element>
<element name="R7" library="adafruit" package="R0603" value="330"/>
<element name="Q1" library="SparkFun-DiscreteSemi" package="SOT23-3" value="MMBT2222A">
<attribute name="PROD_ID" value="TRANS-08049"/>
</element>
<element name="C1" library="adafruit" package="C0603" value="4.7uF"/>
<element name="C2" library="adafruit" package="C0603" value="100nF"/>
<element name="U$2" library="SparkFun-Aesthetics" package="OSHW-LOGO-M" value=""/>
<element name="JP2" library="SparkFun-Connectors" package="2X3" value="AVR_SPI_PRG_6PTH"/>
<element name="R1" library="adafruit" package="R0603" value="10k"/>
</elements>
<signals>
<signal name="USB_DP">
<contactref element="R3" pad="2"/>
<contactref element="U$1" pad="4"/>
</signal>
<signal name="USB_DM">
<contactref element="R2" pad="2"/>
<contactref element="U$1" pad="3"/>
</signal>
<signal name="5V">
<contactref element="D1" pad="C"/>
<contactref element="U$1" pad="42"/>
<contactref element="U$1" pad="44"/>
<contactref element="U$1" pad="24"/>
<contactref element="U$1" pad="34"/>
<contactref element="U$1" pad="14"/>
<contactref element="U$1" pad="2"/>
<contactref element="Q1" pad="3"/>
<contactref element="C1" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="JP2" pad="2"/>
<contactref element="U$1" pad="7"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="GND">
<contactref element="U$1" pad="5"/>
<contactref element="U$1" pad="15"/>
<contactref element="U$1" pad="23"/>
<contactref element="U$1" pad="35"/>
<contactref element="U$1" pad="43"/>
<contactref element="U$1" pad="33"/>
<contactref element="C4" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="S1" pad="S2"/>
<contactref element="S1" pad="K"/>
<contactref element="S2" pad="S2"/>
<contactref element="S2" pad="K"/>
<contactref element="S3" pad="S2"/>
<contactref element="S3" pad="K"/>
<contactref element="S4" pad="S2"/>
<contactref element="S4" pad="K"/>
<contactref element="JP3" pad="5@7"/>
<contactref element="JP3" pad="5@2"/>
<contactref element="JP3" pad="5@3"/>
<contactref element="JP3" pad="5@1"/>
<contactref element="JP3" pad="5@4"/>
<contactref element="JP3" pad="5@6"/>
<contactref element="JP3" pad="5@5"/>
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="JP2" pad="6"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="6"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="U$1" pad="17"/>
<contactref element="Y1" pad="3"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="U$1" pad="16"/>
<contactref element="Y1" pad="1"/>
<contactref element="C5" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="S1" pad="A"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="SW1">
<contactref element="S1" pad="S1"/>
<contactref element="U$1" pad="29"/>
</signal>
<signal name="BL">
<contactref element="R4" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="Q1" pad="2"/>
</signal>
<signal name="SW2">
<contactref element="S2" pad="S1"/>
<contactref element="U$1" pad="30"/>
</signal>
<signal name="N$12">
<contactref element="R5" pad="2"/>
<contactref element="S2" pad="A"/>
</signal>
<signal name="N$10">
<contactref element="R6" pad="2"/>
<contactref element="S3" pad="A"/>
</signal>
<signal name="N$11">
<contactref element="R7" pad="2"/>
<contactref element="S4" pad="A"/>
</signal>
<signal name="SW3">
<contactref element="S3" pad="S1"/>
<contactref element="U$1" pad="31"/>
</signal>
<signal name="SW4">
<contactref element="S4" pad="S1"/>
<contactref element="U$1" pad="32"/>
</signal>
<signal name="BL_CTRL">
<contactref element="U$1" pad="27"/>
<contactref element="Q1" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="JP3" pad="1"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="JP3" pad="2"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="JP3" pad="3"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="MOSI">
<contactref element="JP2" pad="4"/>
<contactref element="U$1" pad="10"/>
</signal>
<signal name="MISO">
<contactref element="JP2" pad="1"/>
<contactref element="U$1" pad="11"/>
</signal>
<signal name="SCK">
<contactref element="JP2" pad="3"/>
<contactref element="U$1" pad="9"/>
</signal>
<signal name="RST">
<contactref element="JP2" pad="5"/>
<contactref element="U$1" pad="13"/>
<contactref element="R1" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
