<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.6.0">
<drawing>
<board>
<plain>
<wire x1="-52.07" y1="-15.24" x2="-52.07" y2="-63.5" width="0" layer="20"/>
<wire x1="-52.07" y1="-63.5" x2="46.99" y2="-63.5" width="0" layer="20"/>
<wire x1="46.99" y1="-15.24" x2="46.99" y2="-63.5" width="0" layer="20"/>
<wire x1="-52.07" y1="-15.24" x2="46.99" y2="-15.24" width="0" layer="20"/>
<text>JTAG</text>
<text>Q</text>
<text>W</text>
<text>E</text>
<text>R</text>
<text>T</text>
<text>Y</text>
<text>U</text>
<text>I</text>
<text>O</text>
<text>P</text>
<text>A</text>
<text>S</text>
<text>D</text>
<text>F</text>
<text>G</text>
<text>H</text>
<text>J</text>
<text>K</text>
<text>L</text>
<text>ENTER</text>
<text>Z</text>
<text>X</text>
<text>C</text>
<text>V</text>
<text>B</text>
<text>N</text>
<text>M</text>
<text>1!</text>
<text>2@</text>
<text>3#</text>
<text>4$</text>
<text>5%</text>
<text>6^</text>
<text>7&amp;</text>
<text>8*</text>
<text>9(</text>
<text>0)</text>
<text>DEL</text>
<text>TAB</text>
<text>SHIFT</text>
<text>/?</text>
<text>=+</text>
<text>;:</text>
<text>'"</text>
<text>/|</text>
<text>SPACE</text>
<text>&lt;</text>
<text>&lt;</text>
<text>&gt;</text>
<text>&gt;</text>
<text>FN</text>
<text>ESC</text>
<text>PgUP</text>
<text>PgDN</text>
<text>INS</text>
<text>,&lt;</text>
<text>.&gt;</text>
<text>[{</text>
<text>]}</text>
<text>CTRL</text>
<text>ALT</text>
<text>BKSP</text>
<text>-_</text>
<text>HOME</text>
<text>END</text>
<text>CAPS</text>
<text>FN</text>
</plain>
<libraries>
<library name="led">
<description>&lt;b&gt;LEDs&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;&lt;br&gt;
Extended by Federico Battaglin &lt;author&gt;&amp;lt;federico.rd@fdpinternational.com&amp;gt;&lt;/author&gt; with DUOLED</description>
<packages>
<package name="CHIPLED_0805">
<description>&lt;b&gt;CHIPLED&lt;/b&gt;&lt;p&gt;
Source: http://www.osram.convergy.de/ ... LG_R971.pdf</description>
</package>
</packages>
</library>
<library name="microbuilder">
<packages>
<package name="_0603MP">
<description>&lt;b&gt;0603 MicroPitch&lt;/b&gt;</description>
</package>
<package name="MOUNTINGHOLE_2.0_PLATED">
</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-S">
</package>
</packages>
</library>
<library name="rc-master-smd">
<packages>
<package name="C0603">
<description>&lt;b&gt;SMD CHIP CAP&lt;/b&gt; - 0603</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="1X05-1.27MM">
<description>Header for OS4000-T</description>
</package>
</packages>
</library>
<library name="xc6206">
<packages>
<package name="SOT23">
</package>
</packages>
</library>
<library name="Other">
<packages>
<package name="MICRO_B">
</package>
</packages>
</library>
<library name="atsamd21E">
<description>Generated from &lt;b&gt;picomeganrfesp.sch&lt;/b&gt;&lt;p&gt;
by exp-project-lbr.ulp</description>
<packages>
<package name="TQFP32-08">
<description>&lt;B&gt;Thin Plasic Quad Flat Package&lt;/B&gt; Grid 0.8 mm</description>
</package>
</packages>
</library>
<library name="es">
<packages>
<package name="KX-327LT">
</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="TACTILE-PTH">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="LOGO3" library="SparkFun-Aesthetics" package="OSHW-LOGO-S" value="OSHW-LOGOS"/>
<element name="C8" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C9" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="JTAG" library="SparkFun-Connectors" package="1X05-1.27MM" value="">
<attribute name="VALUE"/>
</element>
<element name="U2" library="xc6206" package="SOT23" value="MCP1703T-3302E/CB"/>
<element name="U$5" library="Other" package="MICRO_B" value="MICROUSB"/>
<element name="U$7" library="atsamd21E" package="TQFP32-08" value="ATSAMD21ESAMD"/>
<element name="C10" library="rc-master-smd" package="C0603" value="1uF"/>
<element name="32,768KHZ" library="es" package="KX-327LT" value="32768KHz"/>
<element name="C11" library="rc-master-smd" package="C0603" value="22p"/>
<element name="C12" library="rc-master-smd" package="C0603" value="22p"/>
<element name="LED13X" library="led" package="CHIPLED_0805" value="">
<attribute name="VALUE"/>
</element>
<element name="R7" library="microbuilder" package="_0603MP" value="1K5"/>
<element name="C14" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C15" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="U$3" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$10" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$4" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$2" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="LED13X1" library="led" package="CHIPLED_0805" value="">
<attribute name="VALUE"/>
</element>
<element name="R8" library="microbuilder" package="_0603MP" value="1K5"/>
<element name="S1" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S2" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S3" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S4" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S6" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S7" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S8" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S9" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S11" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S12" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S13" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S14" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S16" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S17" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S18" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S19" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S21" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S22" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S23" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S24" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S26" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S27" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S28" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S29" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S31" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S32" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S33" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S34" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S36" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S37" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S38" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S39" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S41" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S42" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S43" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S44" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S46" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S47" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S48" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S49" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S51" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S52" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S53" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S54" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="pb22">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="C8" pad="2"/>
<contactref element="JTAG" pad="1"/>
<contactref element="U$5" pad="GND3"/>
<contactref element="U$5" pad="GND7"/>
<contactref element="U$5" pad="GND1"/>
<contactref element="U$5" pad="GND2"/>
<contactref element="U$5" pad="GND4"/>
<contactref element="U$5" pad="GND8"/>
<contactref element="U$5" pad="P5"/>
<contactref element="C9" pad="2"/>
<contactref element="U2" pad="1"/>
<contactref element="U$7" pad="28"/>
<contactref element="U$7" pad="10"/>
<contactref element="C10" pad="1"/>
<contactref element="C11" pad="2"/>
<contactref element="C12" pad="1"/>
<contactref element="LED13X" pad="C"/>
<contactref element="C14" pad="2"/>
<contactref element="C15" pad="2"/>
<contactref element="LED13X1" pad="C"/>
</signal>
<signal name="VCC">
<contactref element="U$7" pad="30"/>
<contactref element="U$7" pad="9"/>
<contactref element="JTAG" pad="2"/>
<contactref element="C14" pad="1"/>
<contactref element="C15" pad="1"/>
<contactref element="U2" pad="2"/>
<contactref element="C8" pad="1"/>
</signal>
<signal name="A3">
<contactref element="U$7" pad="5"/>
<contactref element="S16" pad="3"/>
<contactref element="S17" pad="3"/>
<contactref element="S18" pad="3"/>
<contactref element="S19" pad="3"/>
</signal>
<signal name="N$4">
</signal>
<signal name="D4">
<contactref element="U$7" pad="11"/>
<contactref element="S36" pad="3"/>
<contactref element="S37" pad="3"/>
<contactref element="S38" pad="3"/>
<contactref element="S39" pad="3"/>
</signal>
<signal name="D3">
<contactref element="U$7" pad="12"/>
<contactref element="S41" pad="3"/>
<contactref element="S42" pad="3"/>
<contactref element="S43" pad="3"/>
<contactref element="S44" pad="3"/>
</signal>
<signal name="D2">
<contactref element="U$7" pad="15"/>
<contactref element="S1" pad="3"/>
<contactref element="S2" pad="3"/>
<contactref element="S3" pad="3"/>
<contactref element="S4" pad="3"/>
</signal>
<signal name="D5">
<contactref element="U$7" pad="16"/>
<contactref element="S6" pad="3"/>
<contactref element="S7" pad="3"/>
<contactref element="S8" pad="3"/>
<contactref element="S9" pad="3"/>
</signal>
<signal name="D8">
<contactref element="U$7" pad="7"/>
<contactref element="S26" pad="3"/>
<contactref element="S27" pad="3"/>
<contactref element="S28" pad="3"/>
<contactref element="S29" pad="3"/>
</signal>
<signal name="D9">
<contactref element="U$7" pad="8"/>
<contactref element="S31" pad="3"/>
<contactref element="S32" pad="3"/>
<contactref element="S33" pad="3"/>
<contactref element="S34" pad="3"/>
</signal>
<signal name="A0">
<contactref element="U$7" pad="3"/>
</signal>
<signal name="D12">
<contactref element="U$7" pad="20"/>
<contactref element="S1" pad="1"/>
<contactref element="S6" pad="1"/>
<contactref element="S11" pad="1"/>
<contactref element="S16" pad="1"/>
<contactref element="S21" pad="1"/>
<contactref element="S26" pad="1"/>
<contactref element="S31" pad="1"/>
<contactref element="S36" pad="1"/>
<contactref element="S41" pad="1"/>
<contactref element="S46" pad="1"/>
<contactref element="S51" pad="1"/>
</signal>
<signal name="D11">
<contactref element="U$7" pad="17"/>
<contactref element="S46" pad="3"/>
<contactref element="S47" pad="3"/>
<contactref element="S48" pad="3"/>
<contactref element="S49" pad="3"/>
</signal>
<signal name="A4">
<contactref element="U$7" pad="6"/>
<contactref element="S21" pad="3"/>
<contactref element="S22" pad="3"/>
<contactref element="S23" pad="3"/>
<contactref element="S24" pad="3"/>
</signal>
<signal name="D10">
<contactref element="U$7" pad="19"/>
</signal>
<signal name="D13">
<contactref element="U$7" pad="18"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="VUSB">
<contactref element="C9" pad="1"/>
<contactref element="U2" pad="3"/>
<contactref element="U$5" pad="P1"/>
</signal>
<signal name="XIN32">
<contactref element="U$7" pad="1"/>
<contactref element="32,768KHZ" pad="1"/>
<contactref element="C12" pad="2"/>
</signal>
<signal name="XOUT32">
<contactref element="U$7" pad="2"/>
<contactref element="32,768KHZ" pad="4"/>
<contactref element="C11" pad="1"/>
</signal>
<signal name="DP">
<contactref element="U$7" pad="24"/>
<contactref element="U$5" pad="P3"/>
</signal>
<signal name="DM">
<contactref element="U$7" pad="23"/>
<contactref element="U$5" pad="P2"/>
</signal>
<signal name="RESET">
<contactref element="U$7" pad="26"/>
<contactref element="JTAG" pad="3"/>
</signal>
<signal name="D0TX">
<contactref element="U$7" pad="14"/>
<contactref element="S4" pad="1"/>
<contactref element="S9" pad="1"/>
<contactref element="S14" pad="1"/>
<contactref element="S19" pad="1"/>
<contactref element="S24" pad="1"/>
<contactref element="S29" pad="1"/>
<contactref element="S34" pad="1"/>
<contactref element="S39" pad="1"/>
<contactref element="S44" pad="1"/>
<contactref element="S49" pad="1"/>
<contactref element="S54" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="U$7" pad="29"/>
<contactref element="C10" pad="2"/>
</signal>
<signal name="D1RX">
<contactref element="U$7" pad="13"/>
<contactref element="S3" pad="1"/>
<contactref element="S8" pad="1"/>
<contactref element="S13" pad="1"/>
<contactref element="S18" pad="1"/>
<contactref element="S23" pad="1"/>
<contactref element="S28" pad="1"/>
<contactref element="S33" pad="1"/>
<contactref element="S38" pad="1"/>
<contactref element="S43" pad="1"/>
<contactref element="S48" pad="1"/>
<contactref element="S53" pad="1"/>
</signal>
<signal name="D42">
<contactref element="U$7" pad="4"/>
<contactref element="S11" pad="3"/>
<contactref element="S12" pad="3"/>
<contactref element="S13" pad="3"/>
<contactref element="S14" pad="3"/>
</signal>
<signal name="SWC">
<contactref element="U$7" pad="31"/>
<contactref element="JTAG" pad="4"/>
</signal>
<signal name="SWD">
<contactref element="U$7" pad="32"/>
<contactref element="JTAG" pad="5"/>
</signal>
<signal name="D26">
<contactref element="U$7" pad="25"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="D27">
<contactref element="U$7" pad="27"/>
<contactref element="S2" pad="1"/>
<contactref element="S7" pad="1"/>
<contactref element="S12" pad="1"/>
<contactref element="S17" pad="1"/>
<contactref element="S22" pad="1"/>
<contactref element="S27" pad="1"/>
<contactref element="S32" pad="1"/>
<contactref element="S37" pad="1"/>
<contactref element="S42" pad="1"/>
<contactref element="S47" pad="1"/>
<contactref element="S52" pad="1"/>
</signal>
<signal name="N$22">
<contactref element="LED13X" pad="A"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="SDA">
<contactref element="U$7" pad="21"/>
</signal>
<signal name="SCL">
<contactref element="U$7" pad="22"/>
</signal>
<signal name="N$7">
<contactref element="LED13X1" pad="A"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="D6">
<contactref element="S51" pad="3"/>
<contactref element="S52" pad="3"/>
<contactref element="S53" pad="3"/>
<contactref element="S54" pad="3"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
