<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.6.0">
<drawing>
<board>
<plain>
<wire x1="10.16" y1="2.54" x2="12.065" y2="0.635" width="0" layer="20" curve="90"/>
<wire x1="12.065" y1="0.635" x2="108.585" y2="0.635" width="0" layer="20"/>
<wire x1="110.1725" y1="37.7825" x2="110.1725" y2="2.54" width="0" layer="20"/>
<wire x1="110.1725" y1="2.54" x2="108.585" y2="0.635" width="0" layer="20" curve="-90"/>
<wire x1="10.16" y1="37.7825" x2="12.065" y2="39.6875" width="0" layer="20" curve="-90"/>
<wire x1="12.065" y1="39.6875" x2="108.2675" y2="39.6875" width="0" layer="20"/>
<wire x1="108.2675" y1="39.6875" x2="110.1725" y2="37.7825" width="0" layer="20" curve="-90"/>
<wire x1="10.16" y1="37.7825" x2="10.16" y2="2.54" width="0" layer="20"/>
<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>DEL</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</text>
<text>8</text>
<text>9</text>
<text>0</text>
<text>ESC
TAB</text>
<text>SPC</text>
<text>ENT</text>
<text>.,</text>
<text>!</text>
<text>@</text>
<text>#</text>
<text>$</text>
<text>%</text>
<text>^</text>
<text>&amp;</text>
<text>*</text>
<text>(</text>
<text>)</text>
<text>:</text>
<text>:</text>
<text>;</text>
<text>"'</text>
<text>/</text>
<text>?</text>
<text>ALT</text>
<text>Shift</text>
<text>Symbol</text>
<text>RESET
2x Bootloader</text>
<text>www.PeMi.Technology - Factory For Materializing Dreams</text>
<text>www.PeMi.Technology - Factory For Materializing Dreams</text>
<text>VCC</text>
<text>GND</text>
<text>PA23</text>
<text>MISO</text>
<text>SCK</text>
<text>MOSI</text>
<text>MOSI1</text>
<text>SCK1</text>
<text>SDA</text>
<text>SCL</text>
<text>RX1</text>
<text>TX1</text>
<text>PA09</text>
<text>1K5</text>
<text>+</text>
<text>+</text>
<text>BSS123</text>
<text>100n</text>
<text>1uF</text>
<text>1K5</text>
<text>4.7uF</text>
<text>4.7uF</text>
<text>GND</text>
<text>VCC</text>
<text>RESET</text>
<text>SWC</text>
<text>SWD</text>
<text>BEEP</text>
<text>GND</text>
<text>+5V</text>
<text>D+</text>
<text>D-</text>
</plain>
<libraries>
<library name="microbuilder">
<packages>
<package name="MOUNTINGHOLE_2.0_PLATED">
</package>
<package name="_0603">
<description>&lt;b&gt;0603&lt;/b&gt;</description>
</package>
<package name="0603-NO">
</package>
<package name="BUZZER_SMT_5MM">
</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>
<package name="1X01_NO_SILK">
<description>&lt;h3&gt;Plated Through Hole - No Silk Outline&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:1&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_01&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="Other">
<packages>
<package name="MICRO_B">
</package>
</packages>
</library>
<library name="transistor-small-signal">
<packages>
<package name="SOT23">
<description>&lt;b&gt;SOT-23&lt;/b&gt;</description>
</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="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-SWITCH-1101NE">
<description>SparkFun SKU# COM-08229</description>
</package>
<package name="TACTILE-PTH">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
</packages>
</library>
<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="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
</packages>
</library>
<library name="okie">
<packages>
<package name="SOT23">
</package>
</packages>
</library>
<library name="testpad">
<description>&lt;b&gt;Test Pins/Pads&lt;/b&gt;&lt;p&gt;
Cream on SMD OFF.&lt;br&gt;
new: Attribute TP_SIGNAL_NAME&lt;br&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TP13R">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="JTAG" library="SparkFun-Connectors" package="1X05-1.27MM" value="">
<attribute name="VALUE"/>
</element>
<element name="U$5" library="Other" package="MICRO_B" value="MICROUSB"/>
<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="C6" library="microbuilder" package="_0603" value="10µF"/>
<element name="C7" library="microbuilder" package="_0603" value="1uF"/>
<element name="C4" library="microbuilder" package="_0603" value="100n"/>
<element name="U$7" library="atsamd21E" package="TQFP32-08" value="ATSAMD21ESAMD"/>
<element name="C10" library="rc-master-smd" package="C0603" value="1uF"/>
<element name="R1" library="microbuilder" package="0603-NO" value="10K"/>
<element name="S1" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S2" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S3" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S4" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S5" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S6" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S7" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S8" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S9" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S10" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S11" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S12" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S13" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S14" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S15" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S16" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S17" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S18" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S19" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S20" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S21" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S22" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S23" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S24" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S25" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S26" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S27" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S28" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S29" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S30" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S31" library="SparkFun-Electromechanical" package="TACTILE-SWITCH-1101NE" value="SWITCH-MOMENTARY-2SMD-1101NE">
<attribute name="PROD_ID" value="SWCH-00815"/>
</element>
<element name="S32" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S33" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S34" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S35" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S36" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="S37" library="SparkFun-Electromechanical" package="TACTILE-PTH" value="">
<attribute name="PROD_ID" value=" SWCH-08441"/>
</element>
<element name="LED1" library="led" package="LED3MM" value="">
<attribute name="VALUE"/>
</element>
<element name="LED2" library="led" package="LED3MM" value="">
<attribute name="VALUE"/>
</element>
<element name="3V3" library="okie" package="SOT23" value="3V3"/>
<element name="Q1" library="transistor-small-signal" package="SOT23" value="BSS123"/>
<element name="SP2" library="microbuilder" package="BUZZER_SMT_5MM" value="7.5mm SPK"/>
<element name="R16" library="microbuilder" package="0603-NO" value="1k"/>
<element name="R2" library="microbuilder" package="0603-NO" value="1k"/>
<element name="J2" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J3" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J4" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J5" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J6" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J7" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J8" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J9" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J10" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J13" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J14" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J15" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="J16" library="SparkFun-Connectors" package="1X01_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="TP1" library="testpad" package="TP13R" value="TPTP13R">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="TP4" library="testpad" package="TP13R" value="TPTP13R">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="TP5" library="testpad" package="TP13R" value="TPTP13R">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="TP7" library="testpad" package="TP13R" value="TPTP13R">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="JTAG" pad="1"/>
<contactref element="C7" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="U$5" pad="P5"/>
<contactref element="U$5" pad="GND1"/>
<contactref element="U$5" pad="GND8"/>
<contactref element="U$5" pad="GND3"/>
<contactref element="U$5" pad="GND4"/>
<contactref element="U$5" pad="GND2"/>
<contactref element="U$5" pad="GND7"/>
<contactref element="U$7" pad="28"/>
<contactref element="U$7" pad="10"/>
<contactref element="C10" pad="1"/>
<contactref element="S31" pad="2"/>
<contactref element="Q1" pad="2"/>
<contactref element="3V3" pad="1"/>
<contactref element="R16" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="J2" pad="1"/>
<contactref element="TP7" pad="TP"/>
</signal>
<signal name="VCC">
<contactref element="JTAG" pad="2"/>
<contactref element="C7" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="U$7" pad="30"/>
<contactref element="U$7" pad="9"/>
<contactref element="R1" pad="2"/>
<contactref element="SP2" pad="+"/>
<contactref element="3V3" pad="2"/>
<contactref element="J3" pad="1"/>
</signal>
<signal name="N$4">
</signal>
<signal name="SWC">
<contactref element="JTAG" pad="4"/>
<contactref element="U$7" pad="31"/>
<contactref element="S2" pad="3"/>
<contactref element="S7" pad="3"/>
<contactref element="S12" pad="3"/>
<contactref element="S17" pad="1"/>
<contactref element="S22" pad="1"/>
<contactref element="S27" pad="1"/>
</signal>
<signal name="SWD">
<contactref element="JTAG" pad="5"/>
<contactref element="U$7" pad="32"/>
<contactref element="S1" pad="3"/>
<contactref element="S6" pad="3"/>
<contactref element="S11" pad="3"/>
<contactref element="S16" pad="1"/>
<contactref element="S21" pad="1"/>
<contactref element="S26" pad="1"/>
</signal>
<signal name="PA9">
<contactref element="U$7" pad="12"/>
<contactref element="J8" pad="1"/>
</signal>
<signal name="MOSI">
<contactref element="U$7" pad="19"/>
<contactref element="J5" pad="1"/>
</signal>
<signal name="MISO">
<contactref element="U$7" pad="21"/>
<contactref element="J4" pad="1"/>
</signal>
<signal name="SCK">
<contactref element="U$7" pad="20"/>
<contactref element="J6" pad="1"/>
</signal>
<signal name="VBUS">
<contactref element="U$5" pad="P1"/>
<contactref element="C6" pad="1"/>
<contactref element="3V3" pad="3"/>
<contactref element="TP1" pad="TP"/>
</signal>
<signal name="PA28">
<contactref element="U$7" pad="27"/>
<contactref element="S3" pad="3"/>
<contactref element="S8" pad="3"/>
<contactref element="S13" pad="3"/>
<contactref element="S18" pad="1"/>
<contactref element="S23" pad="1"/>
<contactref element="S28" pad="1"/>
</signal>
<signal name="PA6">
<contactref element="U$7" pad="7"/>
<contactref element="S16" pad="3"/>
<contactref element="S17" pad="3"/>
<contactref element="S18" pad="3"/>
<contactref element="S19" pad="3"/>
<contactref element="S20" pad="3"/>
<contactref element="S35" pad="1"/>
</signal>
<signal name="DP">
<contactref element="U$7" pad="24"/>
<contactref element="U$5" pad="P3"/>
<contactref element="TP5" pad="TP"/>
</signal>
<signal name="DM">
<contactref element="U$7" pad="23"/>
<contactref element="U$5" pad="P2"/>
<contactref element="TP4" pad="TP"/>
</signal>
<signal name="N$2">
<contactref element="U$7" pad="29"/>
<contactref element="C10" pad="2"/>
</signal>
<signal name="PA27">
<contactref element="U$7" pad="25"/>
<contactref element="S26" pad="3"/>
<contactref element="S27" pad="3"/>
<contactref element="S28" pad="3"/>
<contactref element="S29" pad="3"/>
<contactref element="S30" pad="3"/>
<contactref element="S37" pad="1"/>
</signal>
<signal name="PA0">
<contactref element="U$7" pad="1"/>
<contactref element="S4" pad="3"/>
<contactref element="S9" pad="3"/>
<contactref element="S14" pad="3"/>
<contactref element="S19" pad="1"/>
<contactref element="S24" pad="1"/>
<contactref element="S29" pad="1"/>
</signal>
<signal name="PA1">
<contactref element="U$7" pad="2"/>
<contactref element="S5" pad="3"/>
<contactref element="S10" pad="3"/>
<contactref element="S15" pad="3"/>
<contactref element="S20" pad="1"/>
<contactref element="S25" pad="1"/>
<contactref element="S30" pad="1"/>
</signal>
<signal name="PA2">
<contactref element="U$7" pad="3"/>
<contactref element="Q1" pad="1"/>
</signal>
<signal name="PA3">
<contactref element="U$7" pad="4"/>
<contactref element="S1" pad="1"/>
<contactref element="S2" pad="1"/>
<contactref element="S3" pad="1"/>
<contactref element="S4" pad="1"/>
<contactref element="S5" pad="1"/>
<contactref element="S32" pad="1"/>
</signal>
<signal name="PA4">
<contactref element="U$7" pad="5"/>
<contactref element="S6" pad="1"/>
<contactref element="S7" pad="1"/>
<contactref element="S8" pad="1"/>
<contactref element="S9" pad="1"/>
<contactref element="S10" pad="1"/>
<contactref element="S33" pad="1"/>
</signal>
<signal name="PA5">
<contactref element="U$7" pad="6"/>
<contactref element="S11" pad="1"/>
<contactref element="S12" pad="1"/>
<contactref element="S13" pad="1"/>
<contactref element="S14" pad="1"/>
<contactref element="S15" pad="1"/>
<contactref element="S34" pad="1"/>
</signal>
<signal name="PA7">
<contactref element="U$7" pad="8"/>
<contactref element="S21" pad="3"/>
<contactref element="S22" pad="3"/>
<contactref element="S23" pad="3"/>
<contactref element="S24" pad="3"/>
<contactref element="S25" pad="3"/>
<contactref element="S36" pad="1"/>
</signal>
<signal name="PA23">
<contactref element="U$7" pad="22"/>
<contactref element="J7" pad="1"/>
</signal>
<signal name="SDA">
<contactref element="U$7" pad="17"/>
<contactref element="J14" pad="1"/>
</signal>
<signal name="SCL">
<contactref element="U$7" pad="18"/>
<contactref element="J13" pad="1"/>
</signal>
<signal name="TX1">
<contactref element="U$7" pad="13"/>
<contactref element="LED2" pad="A"/>
<contactref element="J16" pad="1"/>
</signal>
<signal name="RX1">
<contactref element="U$7" pad="14"/>
<contactref element="LED1" pad="A"/>
<contactref element="J15" pad="1"/>
</signal>
<signal name="MISO1">
<contactref element="U$7" pad="11"/>
<contactref element="S37" pad="3"/>
<contactref element="S36" pad="3"/>
<contactref element="S35" pad="3"/>
<contactref element="S32" pad="3"/>
<contactref element="S33" pad="3"/>
<contactref element="S34" pad="3"/>
</signal>
<signal name="MOSI1">
<contactref element="U$7" pad="15"/>
<contactref element="J10" pad="1"/>
</signal>
<signal name="SCK1">
<contactref element="U$7" pad="16"/>
<contactref element="J9" pad="1"/>
</signal>
<signal name="RESET1">
<contactref element="U$7" pad="26"/>
<contactref element="R1" pad="1"/>
<contactref element="JTAG" pad="3"/>
<contactref element="S31" pad="1"/>
</signal>
<signal name="LIN1">
<contactref element="Q1" pad="3"/>
<contactref element="SP2" pad="-"/>
</signal>
<signal name="N$3">
<contactref element="LED1" pad="K"/>
<contactref element="R16" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="LED2" pad="K"/>
<contactref element="R2" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
