<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.2.0">
<drawing>
<board>
<plain>
<hole x="66.04" y="35.56" drill="3.2"/>
<hole x="66.04" y="7.62" drill="3.2"/>
<hole x="15.24" y="50.8" drill="3.2"/>
<hole x="13.97" y="2.54" drill="3.2"/>
<text>000  0   0   0  0x20
001  0   0   1  0x21
010  0   1   0  0x22
011  0   1   1  0x23
100  1   0   0  0x24
101  1   0   1  0x25
110  1   1   0  0x26
111  1   1   1  0x27</text>
<text>Chip
Addr.</text>
<text>A2</text>
<text>A1</text>
<text>A0</text>
<text>i2c
Addr.</text>
<text>Jmp Selection</text>
<text>A0</text>
<text>A1</text>
<text>A2</text>
<text>0</text>
<text>1</text>
<text>01|02</text>
<text>03|04</text>
<text>05|06</text>
<text>07|08</text>
<text>16|15</text>
<text>14|13</text>
<text>12|11</text>
<text>10|09</text>
<text>GPIO Expander - Arduino Shield
B. Shockley - 2015 v2.1
</text>
<wire x1="11.43" y1="53.34" x2="64.4525" y2="53.34" width="0" layer="20"/>
<wire x1="64.4525" y1="53.34" x2="66.04" y2="51.7525" width="0" layer="20"/>
<wire x1="66.04" y1="51.7525" x2="66.04" y2="40.3225" width="0" layer="20"/>
<wire x1="66.04" y1="40.3225" x2="68.58" y2="37.7825" width="0" layer="20"/>
<wire x1="68.58" y1="37.7825" x2="68.58" y2="5.08" width="0" layer="20"/>
<wire x1="68.58" y1="5.08" x2="66.04" y2="2.54" width="0" layer="20"/>
<wire x1="66.04" y1="2.54" x2="66.04" y2="0" width="0" layer="20"/>
<wire x1="66.04" y1="0" x2="11.43" y2="0" width="0" layer="20"/>
<wire x1="11.43" y1="0" x2="11.43" y2="53.34" width="0" layer="20"/>
<text>GND</text>
<text>GND</text>
<text>Vin</text>
<text>V-J1</text>
</plain>
<libraries>
<library name="adafruit">
<packages>
<package name="DIL28-3">
<description>&lt;B&gt;Dual In Line&lt;/B&gt;&lt;p&gt;
package type P</description>
</package>
<package name="ARDUINOR3_ICSP_NODIM">
</package>
<package name="2X04">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-PowerIC">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find drivers, regulators, and amplifiers.&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="DIL18">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</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-L">
</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="1X02">
</package>
<package name="POWER_JACK_PTH">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="adafruit" package="DIL28-3" value="MCP23017SP">
<attribute name="VALUE"/>
</element>
<element name="ULN2803A" library="SparkFun-PowerIC" package="DIL18" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="ULN2308B" library="SparkFun-PowerIC" package="DIL18" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="M1" library="adafruit" package="ARDUINOR3_ICSP_NODIM" value="ARDUINO_R3_ICSP_NODIM"/>
<element name="JP1" library="adafruit" package="2X04" value="">
<attribute name="VALUE"/>
</element>
<element name="JP2" library="adafruit" package="2X04" value="">
<attribute name="VALUE"/>
</element>
<element name="JP3" library="adafruit" package="1X03" value="">
<attribute name="VALUE"/>
</element>
<element name="JP4" library="adafruit" package="1X03" value="">
<attribute name="VALUE"/>
</element>
<element name="JP5" library="adafruit" package="1X03" value="">
<attribute name="VALUE"/>
</element>
<element name="U$1" library="SparkFun-Aesthetics" package="OSHW-LOGO-L" value=""/>
<element name="JP6" library="SparkFun-Connectors" package="1X02" value="M02PTH"/>
<element name="JP7" library="SparkFun-Connectors" package="1X02" value="M02PTH"/>
<element name="J1" library="SparkFun-Connectors" package="POWER_JACK_PTH" value="POWER_JACKPTH">
<attribute name="PROD_ID" value="CONN-08197"/>
<attribute name="NAME"/>
</element>
<element name="POWER" library="adafruit" package="1X03" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="ULN2803A" pad="9"/>
<contactref element="ULN2308B" pad="9"/>
<contactref element="IC1" pad="10"/>
<contactref element="M1" pad="GND"/>
<contactref element="M1" pad="GND@1"/>
<contactref element="M1" pad="GND@3"/>
<contactref element="JP3" pad="1"/>
<contactref element="JP4" pad="1"/>
<contactref element="JP5" pad="1"/>
<contactref element="JP6" pad="2"/>
<contactref element="JP6" pad="1"/>
<contactref element="JP7" pad="2"/>
<contactref element="JP7" pad="1"/>
<contactref element="J1" pad="GND"/>
<contactref element="J1" pad="GNDBREAK"/>
</signal>
<signal name="VIN">
<contactref element="M1" pad="VIN"/>
<contactref element="POWER" pad="1"/>
</signal>
<signal name="VDD">
<contactref element="IC1" pad="9"/>
<contactref element="M1" pad="5V"/>
<contactref element="JP5" pad="3"/>
<contactref element="JP4" pad="3"/>
<contactref element="JP3" pad="3"/>
</signal>
<signal name="RESET">
<contactref element="IC1" pad="18"/>
</signal>
<signal name="INTA">
<contactref element="IC1" pad="20"/>
</signal>
<signal name="INTB">
<contactref element="IC1" pad="19"/>
</signal>
<signal name="SCL">
<contactref element="IC1" pad="12"/>
<contactref element="M1" pad="SCL"/>
</signal>
<signal name="SDA">
<contactref element="IC1" pad="13"/>
<contactref element="M1" pad="SDA"/>
</signal>
<signal name="A0">
<contactref element="IC1" pad="21"/>
<contactref element="ULN2803A" pad="8"/>
</signal>
<signal name="A1">
<contactref element="IC1" pad="22"/>
<contactref element="ULN2803A" pad="7"/>
</signal>
<signal name="A2">
<contactref element="IC1" pad="23"/>
<contactref element="ULN2803A" pad="6"/>
</signal>
<signal name="A3">
<contactref element="IC1" pad="24"/>
<contactref element="ULN2803A" pad="5"/>
</signal>
<signal name="A4">
<contactref element="IC1" pad="25"/>
<contactref element="ULN2803A" pad="4"/>
</signal>
<signal name="A5">
<contactref element="IC1" pad="26"/>
<contactref element="ULN2803A" pad="3"/>
</signal>
<signal name="A6">
<contactref element="IC1" pad="27"/>
<contactref element="ULN2803A" pad="2"/>
</signal>
<signal name="A7">
<contactref element="IC1" pad="28"/>
<contactref element="ULN2803A" pad="1"/>
</signal>
<signal name="B0">
<contactref element="IC1" pad="1"/>
<contactref element="ULN2308B" pad="8"/>
</signal>
<signal name="B1">
<contactref element="IC1" pad="2"/>
<contactref element="ULN2308B" pad="7"/>
</signal>
<signal name="B2">
<contactref element="IC1" pad="3"/>
<contactref element="ULN2308B" pad="6"/>
</signal>
<signal name="B3">
<contactref element="IC1" pad="4"/>
<contactref element="ULN2308B" pad="5"/>
</signal>
<signal name="B4">
<contactref element="IC1" pad="5"/>
<contactref element="ULN2308B" pad="4"/>
</signal>
<signal name="B5">
<contactref element="IC1" pad="6"/>
<contactref element="ULN2308B" pad="3"/>
</signal>
<signal name="B6">
<contactref element="IC1" pad="7"/>
<contactref element="ULN2308B" pad="2"/>
</signal>
<signal name="B7">
<contactref element="IC1" pad="8"/>
<contactref element="ULN2308B" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="ULN2803A" pad="18"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="ULN2803A" pad="17"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="ULN2803A" pad="16"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="N$4">
<contactref element="ULN2803A" pad="15"/>
<contactref element="JP1" pad="4"/>
</signal>
<signal name="N$5">
<contactref element="ULN2803A" pad="14"/>
<contactref element="JP1" pad="5"/>
</signal>
<signal name="N$6">
<contactref element="ULN2803A" pad="13"/>
<contactref element="JP1" pad="6"/>
</signal>
<signal name="N$8">
<contactref element="ULN2803A" pad="12"/>
<contactref element="JP1" pad="7"/>
</signal>
<signal name="N$9">
<contactref element="ULN2803A" pad="11"/>
<contactref element="JP1" pad="8"/>
</signal>
<signal name="N$11">
<contactref element="ULN2308B" pad="18"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="N$12">
<contactref element="ULN2308B" pad="17"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="ULN2308B" pad="16"/>
<contactref element="JP2" pad="3"/>
</signal>
<signal name="N$14">
<contactref element="ULN2308B" pad="15"/>
<contactref element="JP2" pad="4"/>
</signal>
<signal name="N$15">
<contactref element="ULN2308B" pad="14"/>
<contactref element="JP2" pad="5"/>
</signal>
<signal name="N$16">
<contactref element="ULN2308B" pad="13"/>
<contactref element="JP2" pad="6"/>
</signal>
<signal name="N$17">
<contactref element="ULN2308B" pad="12"/>
<contactref element="JP2" pad="7"/>
</signal>
<signal name="N$18">
<contactref element="ULN2308B" pad="11"/>
<contactref element="JP2" pad="8"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="17"/>
<contactref element="JP5" pad="2"/>
</signal>
<signal name="N$19">
<contactref element="IC1" pad="16"/>
<contactref element="JP4" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="IC1" pad="15"/>
<contactref element="JP3" pad="2"/>
</signal>
<signal name="3V">
<contactref element="M1" pad="3V"/>
</signal>
<signal name="VCC">
<contactref element="J1" pad="PWR"/>
<contactref element="POWER" pad="3"/>
</signal>
<signal name="VEE">
<contactref element="POWER" pad="2"/>
<contactref element="ULN2803A" pad="10"/>
<contactref element="ULN2308B" pad="10"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
