<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="80.01" y2="0" width="0" layer="20"/>
<wire x1="80.01" y1="0" x2="80.01" y2="36.068" width="0" layer="20"/>
<wire x1="80.01" y1="36.068" x2="0" y2="36.068" width="0" layer="20"/>
<wire x1="0" y1="36.068" x2="0" y2="0" width="0" layer="20"/>
<text>SDA</text>
<text>SCL</text>
<text>Open Hardware</text>
<text>OpenEVSE Display 4.2</text>
<text>Greg Christenson 2013</text>
<text>Greg Christenson 2013</text>
<text>BAT1</text>
<text>R7</text>
<text>10K TRIM</text>
<text>o</text>
</plain>
<libraries>
<library name="adafruit">
<packages>
<package name="SO16W">
<description>&lt;b&gt;SMALL OUTLINE INTEGRATED CIRCUIT&lt;/b&gt;&lt;p&gt;
wide body 7.5 mm/JEDEC MS-013AA</description>
</package>
<package name="SO28W">
<description>&lt;B&gt;28-Lead Plastic Small Outline (SO) &lt;/B&gt; Wide, 300 mil Body (SOIC)&lt;/B&gt;&lt;p&gt;
Source: http://ww1.microchip.com/downloads/en/devicedoc/39632c.pdf</description>
</package>
</packages>
</library>
<library name="SparkFun-Displays">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find all manner of display devices- LED displays, LCD displays, 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; CC v3.0 Share-Alike 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="LCD-16X2_NOSILK">
</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; CC v3.0 Share-Alike 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">
</package>
<package name="1X04_LOCK_LONGPADS">
<description>This footprint was designed to help hold the alignment of a through-hole component (i.e.  6-pin header) while soldering it into place.  
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).  
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes.  Because they are alternating, it causes a "brace" 
to hold the component in place.  0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice.  Also,
if you push a header all the way into place, it is covered up entirely on the bottom side.  This idea of altering the position of holes to aid alignment 
will be further integrated into the Sparkfun Library for other footprints.  It can help hold any component with 3 or more connection pins.</description>
</package>
<package name="1X02">
</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; CC v3.0 Share-Alike 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="BATTCON_245MM_PTH">
</package>
<package name="TRIM_POT_PTH">
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<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; CC v3.0 Share-Alike 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="AXIAL-0.3-KIT">
<description>&lt;h3&gt;AXIAL-0.3-KIT&lt;/h3&gt;

Commonly used for 1/4W through-hole resistors. 0.3" pitch between holes.&lt;br&gt;
&lt;br&gt;

&lt;b&gt;Warning:&lt;/b&gt; This is the KIT version of the AXIAL-0.3 package. This package has a smaller diameter top stop mask, which doesn't cover the diameter of the pad. This means only the bottom side of the pads' copper will be exposed. You'll only be able to solder to the bottom side.</description>
</package>
<package name="AXIAL-0.4">
<description>1/4W Resistor, 0.4" wide&lt;p&gt;

Yageo CFR series &lt;a href="http://www.yageo.com/pdf/yageo/Leaded-R_CFR_2008.pdf"&gt;http://www.yageo.com/pdf/yageo/Leaded-R_CFR_2008.pdf&lt;/a&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Capacitors">
<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; CC v3.0 Share-Alike 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="CAP-PTH-SMALLEZ">
<description>This is the "EZ" version of the .1" spaced ceramic thru-hole cap.&lt;br&gt;
It has reduced top mask to make it harder to put the component on the wrong side of the board.</description>
</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; CC v3.0 Share-Alike 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="SJ_3_PASTE2&amp;3">
</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; CC v3.0 Share-Alike 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>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC2" library="adafruit" package="SO16W" value="DS3231/SO">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC1" library="adafruit" package="SO28W" value="MCP23017SO">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="SparkFun-Displays" package="LCD-16X2_NOSILK" value="LCD-16X2NOSILK"/>
<element name="JP1" library="SparkFun-Connectors" package="1X04_LOCK_LONGPADS" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="BAT1" library="SparkFun-Electromechanical" package="BATTCON_245MM_PTH" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="VOLTAGE" value="3V"/>
</element>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.4" value="220 Blue">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="AXIAL-0.4" value="330 Green">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="AXIAL-0.4" value="220 Red">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="AXIAL-0.3-KIT" value="4.7K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP2" library="SparkFun-Connectors" package="1X02" value="">
<attribute name="VALUE"/>
</element>
<element name="R7" library="SparkFun-Electromechanical" package="TRIM_POT_PTH" value="10K TRIM">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="CAP-PTH-SMALLEZ" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Capacitors" package="CAP-PTH-SMALLEZ" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="SparkFun-Capacitors" package="CAP-PTH-SMALLEZ" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="SparkFun-Capacitors" package="CAP-PTH-SMALLEZ" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun-Resistors" package="AXIAL-0.3-KIT" value="4.7K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP3" library="SparkFun-Connectors" package="1X05" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="SparkFun-Capacitors" package="CAP-PTH-SMALLEZ" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SJ0" library="SparkFun-Passives" package="SJ_3_PASTE2&amp;3" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="VALUE"/>
</element>
<element name="SJ1" library="SparkFun-Passives" package="SJ_3_PASTE2&amp;3" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="VALUE"/>
</element>
<element name="SJ2" library="SparkFun-Passives" package="SJ_3_PASTE2&amp;3" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="SparkFun-Aesthetics" package="OSHW-LOGO-L" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="JP1" pad="1"/>
<contactref element="IC1" pad="10"/>
<contactref element="R7" pad="1"/>
<contactref element="IC2" pad="13"/>
<contactref element="IC2" pad="5"/>
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<contactref element="IC2" pad="11"/>
<contactref element="IC2" pad="10"/>
<contactref element="IC2" pad="9"/>
<contactref element="IC2" pad="6"/>
<contactref element="IC2" pad="7"/>
<contactref element="IC2" pad="8"/>
<contactref element="C4" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="BAT1" pad="2"/>
<contactref element="JP3" pad="1"/>
<contactref element="U1" pad="1"/>
<contactref element="C5" pad="2"/>
<contactref element="SJ2" pad="1"/>
<contactref element="SJ1" pad="1"/>
<contactref element="SJ0" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="IC1" pad="1"/>
<contactref element="R1" pad="P$1"/>
</signal>
<signal name="N$2">
<contactref element="R1" pad="P$2"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="IC1" pad="28"/>
<contactref element="R2" pad="P$1"/>
</signal>
<signal name="N$4">
<contactref element="R2" pad="P$2"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="IC1" pad="27"/>
<contactref element="R3" pad="P$1"/>
</signal>
<signal name="N$6">
<contactref element="R3" pad="P$2"/>
<contactref element="U1" pad="16"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="2"/>
<contactref element="U1" pad="14"/>
</signal>
<signal name="N$8">
<contactref element="IC1" pad="3"/>
<contactref element="U1" pad="13"/>
</signal>
<signal name="N$9">
<contactref element="IC1" pad="4"/>
<contactref element="U1" pad="12"/>
</signal>
<signal name="N$10">
<contactref element="IC1" pad="5"/>
<contactref element="U1" pad="11"/>
</signal>
<signal name="5V">
<contactref element="JP1" pad="2"/>
<contactref element="IC1" pad="9"/>
<contactref element="U1" pad="2"/>
<contactref element="U1" pad="15"/>
<contactref element="R7" pad="3"/>
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<contactref element="C2" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="R5" pad="P$2"/>
<contactref element="R4" pad="P$2"/>
<contactref element="C5" pad="1"/>
<contactref element="SJ2" pad="3"/>
<contactref element="SJ1" pad="3"/>
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<contactref element="IC1" pad="18"/>
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<signal name="N$11">
<contactref element="IC1" pad="6"/>
<contactref element="U1" pad="6"/>
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<signal name="N$12">
<contactref element="IC1" pad="7"/>
<contactref element="U1" pad="5"/>
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<signal name="N$13">
<contactref element="IC1" pad="8"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="N$14">
<contactref element="R7" pad="2"/>
<contactref element="U1" pad="3"/>
</signal>
<signal name="N$15">
<contactref element="JP1" pad="3"/>
<contactref element="IC1" pad="13"/>
<contactref element="IC2" pad="15"/>
<contactref element="R5" pad="P$1"/>
</signal>
<signal name="N$16">
<contactref element="JP1" pad="4"/>
<contactref element="IC1" pad="12"/>
<contactref element="IC2" pad="16"/>
<contactref element="R4" pad="P$1"/>
</signal>
<signal name="N$17">
<contactref element="IC2" pad="14"/>
<contactref element="BAT1" pad="3"/>
</signal>
<signal name="N$23">
</signal>
<signal name="N$18">
<contactref element="JP3" pad="2"/>
<contactref element="IC1" pad="21"/>
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<signal name="N$19">
<contactref element="IC1" pad="23"/>
<contactref element="JP3" pad="4"/>
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<signal name="N$20">
<contactref element="IC1" pad="24"/>
<contactref element="JP3" pad="5"/>
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<contactref element="IC1" pad="22"/>
<contactref element="JP3" pad="3"/>
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<contactref element="SJ2" pad="2"/>
<contactref element="IC1" pad="17"/>
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<signal name="N$22">
<contactref element="SJ1" pad="2"/>
<contactref element="IC1" pad="16"/>
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<signal name="N$24">
<contactref element="SJ0" pad="2"/>
<contactref element="IC1" pad="15"/>
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