<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.3.0">
<drawing>
<board>
<plain>
<wire x1="72.4154" y1="10.1346" x2="26.6192" y2="10.1346" width="0.002540625" layer="20"/>
<wire x1="26.6446" y1="33.0454" x2="72.4662" y2="33.0454" width="0.002540625" layer="20"/>
<text>usb Feather</text>
<text>Install Feather
32u4 from this side</text>
<text>Install TCA9548 breakout
&amp; EZ-link from this side</text>
<text>TCA9548 Brkout
Vin</text>
<text>Bluefruit EZlink</text>
<text>Gnd</text>
<text>Vin</text>
<text>jpattillo.net</text>
<text>Smart Skeleton
  Main Board</text>
<text>v0.5</text>
<wire x1="26.6446" y1="33.0454" x2="24.13" y2="30.5308" width="0.002540625" layer="20" curve="90"/>
<wire x1="24.13" y1="30.5308" x2="24.13" y2="12.6238" width="0.002540625" layer="20"/>
<wire x1="24.13" y1="12.6238" x2="26.6192" y2="10.1346" width="0.002540625" layer="20" curve="90"/>
<wire x1="72.4662" y1="33.0454" x2="74.9554" y2="30.5562" width="0.002540625" layer="20" curve="-90"/>
<wire x1="74.9554" y1="30.5562" x2="74.9554" y2="12.6746" width="0.002540625" layer="20"/>
<wire x1="74.9554" y1="12.6746" x2="72.4154" y2="10.1346" width="0.002540625" layer="20" curve="-90"/>
<text>HEAD</text>
<text>ARM</text>
<text>LEG</text>
<text>TORS</text>
<text>TX</text>
<text>RX</text>
<hole x="59.944" y="19.812" drill="3.048"/>
</plain>
<libraries>
<library name="adafruit">
<packages>
<package name="USB-MINIB-THM-MOLEX_NOSLK">
</package>
<package name="FEATHERWING_SS">
</package>
</packages>
</library>
<library name="skeleton">
<packages>
<package name="TCA9548_NOEXTRA">
</package>
<package name="SOT-143">
</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-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="PAD-JUMPER-2-NO_NO_SILK">
</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="JST-2-PTH-NS">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U$1" library="skeleton" package="TCA9548_NOEXTRA" value="TCA9548_MIN"/>
<element name="TORSO" library="adafruit" package="USB-MINIB-THM-MOLEX_NOSLK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LEG" library="adafruit" package="USB-MINIB-THM-MOLEX_NOSLK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="HEAD" library="adafruit" package="USB-MINIB-THM-MOLEX_NOSLK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="ARM" library="adafruit" package="USB-MINIB-THM-MOLEX_NOSLK" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$2" library="skeleton" package="SOT-143" value="TVS_ARRAY_CD143A"/>
<element name="U$3" library="skeleton" package="SOT-143" value="TVS_ARRAY_CD143A"/>
<element name="U$4" library="skeleton" package="SOT-143" value="TVS_ARRAY_CD143A"/>
<element name="U$5" library="skeleton" package="SOT-143" value="TVS_ARRAY_CD143A"/>
<element name="LOGO1" library="SparkFun-Aesthetics" package="OSHW-LOGO-M" value="OSHW-LOGOM"/>
<element name="U$6" library="adafruit" package="FEATHERWING_SS" value="FEATHERWING_SS"/>
<element name="JP1" library="SparkFun-Passives" package="PAD-JUMPER-2-NO_NO_SILK" value="JUMPER-PAD-2-NO">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP2" library="SparkFun-Passives" package="PAD-JUMPER-2-NO_NO_SILK" value="JUMPER-PAD-2-NO">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="SparkFun-Connectors" package="JST-2-PTH-NS" value="">
<attribute name="VALUE"/>
</element>
<element name="J2" library="SparkFun-Connectors" package="JST-2-PTH-NS" value="">
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="TORSO" pad="GND"/>
<contactref element="LEG" pad="GND"/>
<contactref element="HEAD" pad="GND"/>
<contactref element="ARM" pad="GND"/>
<contactref element="U$1" pad="GND"/>
<contactref element="U$2" pad="GND"/>
<contactref element="U$3" pad="GND"/>
<contactref element="U$4" pad="GND"/>
<contactref element="U$5" pad="GND"/>
<contactref element="U$6" pad="4"/>
<contactref element="JP1" pad="1"/>
<contactref element="JP2" pad="1"/>
<contactref element="J1" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="U$1" pad="VIN"/>
<contactref element="ARM" pad="VBUS"/>
<contactref element="HEAD" pad="VBUS"/>
<contactref element="LEG" pad="VBUS"/>
<contactref element="TORSO" pad="VBUS"/>
<contactref element="U$2" pad="VCC"/>
<contactref element="U$3" pad="VCC"/>
<contactref element="U$4" pad="VCC"/>
<contactref element="U$5" pad="VCC"/>
<contactref element="U$6" pad="1"/>
</signal>
<signal name="SCL">
<contactref element="U$1" pad="SCL"/>
<contactref element="U$6" pad="18"/>
</signal>
<signal name="SDA">
<contactref element="U$1" pad="SDA"/>
<contactref element="U$6" pad="17"/>
</signal>
<signal name="RX">
<contactref element="U$6" pad="14"/>
<contactref element="J2" pad="2"/>
</signal>
<signal name="TX">
<contactref element="U$6" pad="15"/>
<contactref element="J2" pad="1"/>
</signal>
<signal name="SD1">
<contactref element="U$1" pad="SD1"/>
<contactref element="ARM" pad="D+"/>
<contactref element="U$3" pad="IO2"/>
</signal>
<signal name="SC1">
<contactref element="U$1" pad="SC1"/>
<contactref element="ARM" pad="D-"/>
<contactref element="U$3" pad="IO1"/>
</signal>
<signal name="SC2">
<contactref element="U$1" pad="SC2"/>
<contactref element="HEAD" pad="D-"/>
<contactref element="U$2" pad="IO1"/>
</signal>
<signal name="SD2">
<contactref element="U$1" pad="SD2"/>
<contactref element="HEAD" pad="D+"/>
<contactref element="U$2" pad="IO2"/>
</signal>
<signal name="SC7">
<contactref element="U$1" pad="SC7"/>
<contactref element="TORSO" pad="D-"/>
<contactref element="U$4" pad="IO1"/>
</signal>
<signal name="SD7">
<contactref element="U$1" pad="SD7"/>
<contactref element="TORSO" pad="D+"/>
<contactref element="U$4" pad="IO2"/>
</signal>
<signal name="SC6">
<contactref element="U$1" pad="SC6"/>
<contactref element="LEG" pad="D-"/>
<contactref element="U$5" pad="IO1"/>
</signal>
<signal name="SD6">
<contactref element="U$1" pad="SD6"/>
<contactref element="LEG" pad="D+"/>
<contactref element="U$5" pad="IO2"/>
</signal>
<signal name="N$1">
<contactref element="LEG" pad="GND4"/>
<contactref element="TORSO" pad="GND1"/>
</signal>
<signal name="N$2">
<contactref element="LEG" pad="GND1"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="HEAD" pad="GND4"/>
<contactref element="ARM" pad="GND1"/>
</signal>
<signal name="N$4">
<contactref element="ARM" pad="GND4"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="BLUEPWR">
<contactref element="U$6" pad="19"/>
<contactref element="J1" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
