<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.2.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="80" y2="0" width="0" layer="20"/>
<wire x1="80" y1="0" x2="80" y2="80" width="0" layer="20"/>
<wire x1="80" y1="80" x2="0" y2="80" width="0.8" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="0" width="0" layer="20"/>
<circle x="5" y="75" radius="2.6" width="0.8" layer="46"/>
<circle x="75" y="75" radius="2.6" width="0.8" layer="46"/>
<circle x="5" y="5" radius="2.6" width="0.8" layer="46"/>
<circle x="75" y="5" radius="2.6" width="0.8" layer="46"/>
<wire x1="0" y1="80.01" x2="80.01" y2="80.01" width="1" layer="46"/>
<wire x1="80" y1="0" x2="0" y2="0" width="0.8" layer="46"/>
<wire x1="0" y1="0" x2="0" y2="12.5" width="0.8" layer="46"/>
<wire x1="80.01" y1="0" x2="80.01" y2="12.5" width="0.8" layer="46"/>
<wire x1="80.01" y1="80.01" x2="80.01" y2="67.5" width="0.8" layer="46"/>
<wire x1="0" y1="80.01" x2="0" y2="67.5" width="0.8" layer="46"/>
<wire x1="0" y1="65" x2="0" y2="15" width="0.8" layer="46"/>
<wire x1="80.01" y1="65" x2="80.01" y2="15" width="1" layer="46"/>
</plain>
<libraries>
<library name="CNC diode">
<description>&lt;b&gt;Diodes&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Motorola : www.onsemi.com
&lt;li&gt;Fairchild : www.fairchildsemi.com
&lt;li&gt;Philips : www.semiconductors.com
&lt;li&gt;Vishay : www.vishay.de
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DO35-7">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 7.62 mm</description>
</package>
</packages>
</library>
<library name="CNC pinhead">
<description>&lt;b&gt;Pin Header Connectors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1X04">
<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="CNC cherry">
<packages>
<package name="CHERRY_MX">
<description>Cherry keymodule MX
Default shape</description>
</package>
</packages>
</library>
<library name="CNC ltspice">
<description>Default symbols for import LTspice schematics&lt;p&gt;
2012-10-29 alf@cadsoft.de&lt;br&gt;</description>
<packages>
<package name="0204/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0204, grid 7.5 mm</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="D7" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D4" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D2" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D5" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D8" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D9" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D6" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D3" library="CNC diode" package="DO35-7" value="1N4148DO35-7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP1" library="CNC pinhead" package="1X04" value="jp1">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP2" library="CNC pinhead" package="1X03" value="jp2">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S1" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S2" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S3" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S4" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S5" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S6" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S7" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S8" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S9" library="CNC cherry" package="CHERRY_MX" value="CHERRY_MX">
<attribute name="FARNELL" value="2292961"/>
<attribute name="MOUSER" value="540-MX1A-11NW"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="CNC ltspice" package="0204/7" value="10k">
<attribute name="NAME"/>
<attribute name="SPICEMODEL" value="NONE"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="CNC ltspice" package="0204/7" value="10k">
<attribute name="NAME"/>
<attribute name="SPICEMODEL" value="NONE"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="CNC ltspice" package="0204/7" value="10k">
<attribute name="NAME"/>
<attribute name="SPICEMODEL" value="NONE"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="JP1" pad="4"/>
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="JP1" pad="1"/>
<contactref element="S1" pad="S1"/>
<contactref element="S2" pad="S1"/>
<contactref element="S3" pad="S1"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="JP1" pad="2"/>
<contactref element="S4" pad="S1"/>
<contactref element="S5" pad="S1"/>
<contactref element="S6" pad="S1"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="JP1" pad="3"/>
<contactref element="S7" pad="S1"/>
<contactref element="S8" pad="S1"/>
<contactref element="S9" pad="S1"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="D8" pad="C"/>
<contactref element="D5" pad="C"/>
<contactref element="D2" pad="C"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="D1" pad="C"/>
<contactref element="D4" pad="C"/>
<contactref element="D7" pad="C"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="D3" pad="C"/>
<contactref element="D6" pad="C"/>
<contactref element="D9" pad="C"/>
<contactref element="JP2" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="S9" pad="S2"/>
<contactref element="D9" pad="A"/>
</signal>
<signal name="N$8">
<contactref element="S6" pad="S2"/>
<contactref element="D6" pad="A"/>
</signal>
<signal name="N$9">
<contactref element="D3" pad="A"/>
<contactref element="S3" pad="S2"/>
</signal>
<signal name="N$10">
<contactref element="S2" pad="S2"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="N$11">
<contactref element="S5" pad="S2"/>
<contactref element="D5" pad="A"/>
</signal>
<signal name="N$12">
<contactref element="S8" pad="S2"/>
<contactref element="D8" pad="A"/>
</signal>
<signal name="N$13">
<contactref element="D7" pad="A"/>
<contactref element="S7" pad="S2"/>
</signal>
<signal name="N$14">
<contactref element="D4" pad="A"/>
<contactref element="S4" pad="S2"/>
</signal>
<signal name="N$15">
<contactref element="D1" pad="A"/>
<contactref element="S1" pad="S2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
