<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.5.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="100" y2="0" width="0" layer="20"/>
<wire x1="100" y1="0" x2="100" y2="80" width="0" layer="20"/>
<wire x1="100" y1="80" x2="0" y2="80" width="0" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="0" width="0" layer="20"/>
<hole x="38.1" y="38.1" drill="10.16"/>
</plain>
<libraries>
<library name="01_fab">
<packages>
<package name="SOIC14">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt;</description>
</package>
<package name="2X03SMD">
</package>
</packages>
</library>
<library name="01_battery">
<description>&lt;b&gt;Lithium Batteries and NC Accus&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="CR2032H">
<description>&lt;b&gt;LI BATTERY&lt;/b&gt; Varta</description>
</package>
</packages>
</library>
<library name="01_ng">
<description>Neil Gershenfeld's library</description>
<packages>
<package name="SMT_PINS_3">
</package>
</packages>
</library>
<library name="01_FAB_Hello">
<packages>
<package name="1206">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
</packages>
</library>
<library name="01_SparkFun">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
We've spent an enormous amount of time creating and checking these footprints and parts. 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="1X06_LONGPADS">
</package>
</packages>
</library>
<library name="allegro">
<description>&lt;b&gt;Allegro MicroSystems, Inc&lt;/b&gt;&lt;p&gt;
www.allegromicro.com&lt;br&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SOT23-W">
<description>&lt;b&gt;3-pin SOT23W&lt;/b&gt; LH&lt;p&gt;
Source: http://www.allegromicro.com/en/Products/Packaging/pkgso2.pdf</description>
</package>
</packages>
</library>
</libraries>
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</attributes>
<variantdefs>
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<element name="G1" library="01_battery" package="CR2032H" value="CR2032H"/>
<element name="G2" library="01_battery" package="CR2032H" value="CR2032H"/>
<element name="U$3" library="01_fab" package="2X03SMD" value="AVRISPSMD"/>
<element name="U$1" library="01_ng" package="SMT_PINS_3" value=""/>
<element name="R1" library="01_FAB_Hello" package="1206" value="10K"/>
<element name="JP1" library="01_SparkFun" package="1X06_LONGPADS" value=""/>
<element name="U$2" library="01_FAB_Hello" package="1206" value=""/>
<element name="U$4" library="01_FAB_Hello" package="1206" value=""/>
<element name="U$5" library="01_FAB_Hello" package="1206" value=""/>
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<element name="U$7" library="01_FAB_Hello" package="1206" value=""/>
<element name="IC2" library="allegro" package="SOT23-W" value="A1302LH">
<attribute name="OC_NEWARK" value="31K6638"/>
<attribute name="MPN" value="A1302ELHLT-T"/>
<attribute name="MF" value="ALLEGRO MICROSYSTEMS, INC."/>
<attribute name="OC_FARNELL" value="1457209"/>
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<element name="R3" library="01_FAB_Hello" package="1206" value="499R"/>
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<element name="R5" library="01_FAB_Hello" package="1206" value="499R"/>
<element name="R6" library="01_FAB_Hello" package="1206" value="499R"/>
<element name="IC3" library="allegro" package="SOT23-W" value="A1302LH">
<attribute name="OC_NEWARK" value="31K6638"/>
<attribute name="MPN" value="A1302ELHLT-T"/>
<attribute name="MF" value="ALLEGRO MICROSYSTEMS, INC."/>
<attribute name="OC_FARNELL" value="1457209"/>
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<element name="R7" library="01_FAB_Hello" package="1206" value="0R"/>
<element name="R8" library="01_FAB_Hello" package="1206" value="0R"/>
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<signal name="N$7">
<contactref element="IC1" pad="4"/>
<contactref element="U$3" pad="5"/>
<contactref element="R1" pad="1"/>
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<signal name="N$8">
<contactref element="IC1" pad="7"/>
<contactref element="U$3" pad="4"/>
<contactref element="R6" pad="1"/>
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<signal name="N$10">
<contactref element="U$3" pad="3"/>
<contactref element="IC1" pad="9"/>
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<signal name="N$5">
<contactref element="U$3" pad="1"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="N$1">
<contactref element="G1" pad="+"/>
<contactref element="U$1" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="G1" pad="-"/>
<contactref element="G2" pad="+"/>
</signal>
<signal name="GND">
<contactref element="IC1" pad="14"/>
<contactref element="U$3" pad="6"/>
<contactref element="G2" pad="-"/>
<contactref element="JP1" pad="1"/>
<contactref element="IC2" pad="3"/>
<contactref element="IC2" pad="3"/>
<contactref element="IC3" pad="3"/>
<contactref element="IC3" pad="3"/>
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<signal name="VCC">
<contactref element="IC1" pad="1"/>
<contactref element="U$3" pad="2"/>
<contactref element="U$1" pad="2"/>
<contactref element="R1" pad="2"/>
<contactref element="IC2" pad="1"/>
<contactref element="IC2" pad="1"/>
<contactref element="U$2" pad="1"/>
<contactref element="U$4" pad="1"/>
<contactref element="U$5" pad="1"/>
<contactref element="U$6" pad="1"/>
<contactref element="U$7" pad="1"/>
<contactref element="IC3" pad="1"/>
<contactref element="IC3" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="JP1" pad="3"/>
<contactref element="U$1" pad="3"/>
</signal>
<signal name="TX">
<contactref element="JP1" pad="4"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="RX">
<contactref element="JP1" pad="5"/>
</signal>
<signal name="HALL_OUT">
<contactref element="IC2" pad="2"/>
<contactref element="IC1" pad="12"/>
</signal>
<signal name="N$15">
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<contactref element="R3" pad="2"/>
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<signal name="N$16">
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<contactref element="R4" pad="2"/>
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<signal name="N$17">
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<contactref element="R5" pad="2"/>
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<signal name="N$18">
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<contactref element="R6" pad="2"/>
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<signal name="N$3">
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<contactref element="R2" pad="1"/>
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<signal name="N$6">
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<signal name="N$11">
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<contactref element="U$2" pad="2"/>
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<signal name="N$14">
<contactref element="IC1" pad="10"/>
<contactref element="R8" pad="2"/>
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<signal name="HALL_OUT2">
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<contactref element="R7" pad="2"/>
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<signal name="N$12">
<contactref element="IC3" pad="2"/>
<contactref element="R7" pad="1"/>
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<signal name="N$9">
<contactref element="R4" pad="1"/>
<contactref element="IC1" pad="5"/>
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<signal name="N$13">
<contactref element="R5" pad="1"/>
<contactref element="IC1" pad="6"/>
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<signal name="N$19">
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<signal name="N$20">
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<signal name="N$21">
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<signal name="N$22">
</signal>
<signal name="N$23">
</signal>
<signal name="N$24">
</signal>
</signals>
</board>
</drawing>
</eagle>
