<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.0.2">
<drawing>
<board>
<plain>
<text>gnd</text>
<text>gnd</text>
<wire x1="48.006" y1="27.432" x2="48.006" y2="108.204" width="0.6096" layer="20"/>
<wire x1="48.006" y1="108.204" x2="103.378" y2="108.204" width="0.6096" layer="20"/>
<wire x1="103.378" y1="108.204" x2="103.378" y2="27.432" width="0.6096" layer="20"/>
<wire x1="103.378" y1="27.432" x2="48.006" y2="27.432" width="0.6096" layer="20"/>
<hole x="52.07" y="99.568" drill="3.7973"/>
<hole x="100.076" y="99.568" drill="3.7973"/>
<hole x="100.076" y="30.988" drill="3.7973"/>
<hole x="70.612" y="30.988" drill="3.7973"/>
<text>0V</text>
<text>+12</text>
<text>-12</text>
<text>gnd</text>
<text>1N4001</text>
<text>+</text>
<text>+</text>
<text>+</text>
<text>#6-32</text>
<text>#6-32</text>
<text>#6-32</text>
<text>#6-32</text>
<text>GATE!</text>
<text>(Dig7)</text>
<text>(Dig8)</text>
<text>Atmega328P-PU</text>
<text>Dig7</text>
<text>Dig8</text>
<text>RST</text>
<text>MISO</text>
<text>MOSI</text>
<text>SCK</text>
<text>ADC3</text>
<text>ADC2</text>
<text>ADC1</text>
<text>ADC0</text>
<text>DIG2</text>
<text>DIG3</text>
<text>Gnd</text>
<text>5V</text>
</plain>
<libraries>
<library name="adafruit">
<packages>
<package name="DO41-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2.54 mm, horizontal, grid 10.16 mm</description>
</package>
<package name="AVRISP">
</package>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="1X03-CLEANBIG">
</package>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="2X04">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="C025-025X050">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 2.5 x 5 mm</description>
</package>
<package name="0207/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 7.5 mm</description>
</package>
<package name="C025-030X050">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 3 x 5 mm</description>
</package>
<package name="0204/5">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0204, grid 5 mm</description>
</package>
<package name="C050-024X044">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.4 x 4.4 mm</description>
</package>
<package name="0207/5V">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 5 mm</description>
</package>
<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>
<library name="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="2X08">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="2X02">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X02">
<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-IC-Microcontroller">
<description>&lt;h3&gt;SparkFun Microcontrollers&lt;/h3&gt;
This library contains microcontrollers.
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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="DIP28">
<description>Standard 28-pin DIP package.&lt;br&gt;
IC needs to have legs bent before insertion.</description>
</package>
</packages>
</library>
<library name="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="DO41-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2.54 mm, horizontal, grid 10.16 mm</description>
</package>
</packages>
</library>
<library name="SparkFun-Clocks">
<description>&lt;h3&gt;SparkFun Clocks, Oscillators and Resonators&lt;/h3&gt;
This library contains the real-time clocks, oscillators, resonators, and crystals we use. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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="HC49US">
<description>&lt;h3&gt;HC49/US 11.6x4.6mm PTH Crystal&lt;/h3&gt;
&lt;p&gt;&lt;a href="https://www.digikey.com/Web%20Export/Supplier%20Content/Citizen_300/PDF/Citizen_HC49US.pdf?redirected=1"&gt;Example Datasheet&lt;/a&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="linear">
<description>&lt;b&gt;Linear Devices&lt;/b&gt;&lt;p&gt;
Operational amplifiers,  comparators, voltage regulators, ADCs, DACs, etc.&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="transistor">
<description>&lt;b&gt;Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92">
<description>&lt;b&gt;TO 92&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="my_miniproto">
<description>&lt;h3&gt;SparkFun Connectors&lt;/h3&gt;
This library contains electrically-functional connectors. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&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="1X14">
<description>&lt;h3&gt;Plated Through Hole -14 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:14&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_14&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="1X08">
<description>&lt;h3&gt;Plated Through Hole -8 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:8&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_08&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="1X09">
<description>&lt;h3&gt;Plated Through Hole -9 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:9&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_09&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="1X01">
<description>&lt;h3&gt;Plated Through Hole&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:1&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_01&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="D1" library="adafruit" package="DO41-10" value="1N4004">
<attribute name="NAME"/>
</element>
<element name="D2" library="adafruit" package="DO41-10" value="1N4004">
<attribute name="NAME"/>
</element>
<element name="ISP1" library="adafruit" package="AVRISP" value="AVRISP-6"/>
<element name="PWRHDR" library="pinhead" package="2X08" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MCP4921" library="adafruit" package="DIL08" value="MCP4921">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="SparkFun-IC-Microcontroller" package="DIP28" value="328P">
<attribute name="PROD_ID" value="IC-09136"/>
</element>
<element name="RST" library="adafruit" package="1X03-CLEANBIG" value=""/>
<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="JP6" library="adafruit" package="1X03" value="">
<attribute name="VALUE"/>
</element>
<element name="JP7" library="adafruit" package="2X04" value=""/>
<element name="D3" library="diode" package="DO41-10" value="1N4004">
<attribute name="NAME"/>
</element>
<element name="C1" library="adafruit" package="C025-025X050" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="adafruit" package="C025-025X050" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="adafruit" package="C025-025X050" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="adafruit" package="0207/7" value="10K">
<attribute name="VALUE"/>
</element>
<element name="R2" library="adafruit" package="0207/7" value="100K">
<attribute name="VALUE"/>
</element>
<element name="C4" library="adafruit" package="C025-030X050" value="0.1u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="adafruit" package="0204/5" value="10K"/>
<element name="XTAL" library="SparkFun-Clocks" package="HC49US" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="adafruit" package="C050-024X044" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="adafruit" package="C050-024X044" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="TL072" library="linear" package="DIL08" value="TL072P">
<attribute name="VALUE"/>
</element>
<element name="C7" library="adafruit" package="C050-024X044" value="47p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="adafruit" package="C050-024X044" value="560p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="adafruit" package="0204/5" value="56K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="adafruit" package="0204/5" value="30K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="adafruit" package="0204/5" value="500">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="adafruit" package="0204/5" value="56K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="adafruit" package="0204/5" value="500">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED" library="pinhead" package="1X02" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="OUTPUT" library="pinhead" package="1X02" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SELSW" library="pinhead" package="1X03" value=""/>
<element name="R9" library="adafruit" package="0207/5V" value="100K">
<attribute name="VALUE"/>
</element>
<element name="R10" library="adafruit" package="0207/5V" value="100K">
<attribute name="VALUE"/>
</element>
<element name="R11" library="adafruit" package="0204/5" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="T1" library="transistor" package="TO92" value="2N3904">
<attribute name="VALUE"/>
</element>
<element name="R12" library="adafruit" package="0204/7" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R13" library="adafruit" package="0204/7" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R14" library="adafruit" package="0204/7" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GATEIN" library="pinhead" package="1X02" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP2" library="pinhead" package="2X02" value="">
<attribute name="VALUE"/>
</element>
<element name="J1" library="my_miniproto" package="1X14" value=""/>
<element name="J2" library="my_miniproto" package="1X08" value="">
<attribute name="PROD_ID" value="CONN-08438"/>
</element>
<element name="J3" library="my_miniproto" package="1X08" value="">
<attribute name="PROD_ID" value="CONN-08438"/>
</element>
<element name="J5" library="my_miniproto" package="1X09" value=""/>
<element name="J4" library="my_miniproto" package="1X09" value=""/>
<element name="J6" library="my_miniproto" package="1X01" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="PWRHDR" pad="10"/>
<contactref element="PWRHDR" pad="12"/>
<contactref element="PWRHDR" pad="14"/>
<contactref element="C2" pad="2"/>
<contactref element="C1" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="ISP1" pad="6"/>
<contactref element="PWRHDR" pad="9"/>
<contactref element="PWRHDR" pad="11"/>
<contactref element="PWRHDR" pad="13"/>
<contactref element="U1" pad="22"/>
<contactref element="U1" pad="8"/>
<contactref element="JP3" pad="3"/>
<contactref element="JP6" pad="3"/>
<contactref element="JP4" pad="3"/>
<contactref element="JP5" pad="3"/>
<contactref element="MCP4921" pad="5"/>
<contactref element="MCP4921" pad="7"/>
<contactref element="C4" pad="1"/>
<contactref element="RST" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="C6" pad="1"/>
<contactref element="R4" pad="1"/>
<contactref element="OUTPUT" pad="2"/>
<contactref element="C8" pad="1"/>
<contactref element="LED" pad="2"/>
<contactref element="R9" pad="1"/>
<contactref element="R10" pad="1"/>
<contactref element="T1" pad="3"/>
<contactref element="R13" pad="1"/>
<contactref element="GATEIN" pad="1"/>
<contactref element="J2" pad="1"/>
<contactref element="J2" pad="2"/>
<contactref element="J2" pad="3"/>
<contactref element="J2" pad="4"/>
<contactref element="J2" pad="5"/>
<contactref element="J2" pad="6"/>
<contactref element="J2" pad="7"/>
<contactref element="J2" pad="8"/>
</signal>
<signal name="N$1">
<contactref element="PWRHDR" pad="16"/>
<contactref element="D1" pad="C"/>
<contactref element="PWRHDR" pad="15"/>
</signal>
<signal name="N$2">
<contactref element="PWRHDR" pad="8"/>
<contactref element="D2" pad="A"/>
<contactref element="PWRHDR" pad="7"/>
</signal>
<signal name="+V12">
<contactref element="D2" pad="C"/>
<contactref element="C2" pad="1"/>
<contactref element="TL072" pad="8"/>
<contactref element="J3" pad="1"/>
<contactref element="J3" pad="2"/>
<contactref element="J3" pad="3"/>
<contactref element="J3" pad="4"/>
<contactref element="J3" pad="5"/>
<contactref element="J3" pad="6"/>
<contactref element="J3" pad="7"/>
<contactref element="J3" pad="8"/>
</signal>
<signal name="N$3">
<contactref element="PWRHDR" pad="6"/>
<contactref element="D3" pad="A"/>
<contactref element="PWRHDR" pad="5"/>
</signal>
<signal name="+V5">
<contactref element="MCP4921" pad="1"/>
<contactref element="ISP1" pad="2"/>
<contactref element="D3" pad="C"/>
<contactref element="C3" pad="1"/>
<contactref element="U1" pad="20"/>
<contactref element="U1" pad="7"/>
<contactref element="JP3" pad="1"/>
<contactref element="JP6" pad="1"/>
<contactref element="JP4" pad="1"/>
<contactref element="JP5" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="1"/>
<contactref element="R11" pad="2"/>
<contactref element="R12" pad="2"/>
</signal>
<signal name="V12-">
<contactref element="D1" pad="A"/>
<contactref element="C1" pad="2"/>
<contactref element="TL072" pad="4"/>
<contactref element="J5" pad="1"/>
<contactref element="J5" pad="2"/>
<contactref element="J5" pad="3"/>
<contactref element="J5" pad="4"/>
<contactref element="J5" pad="5"/>
<contactref element="J5" pad="6"/>
<contactref element="J5" pad="7"/>
<contactref element="J5" pad="8"/>
<contactref element="J5" pad="9"/>
</signal>
<signal name="N$5">
<contactref element="PWRHDR" pad="1"/>
<contactref element="PWRHDR" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="PWRHDR" pad="3"/>
<contactref element="PWRHDR" pad="4"/>
</signal>
<signal name="ADC0">
<contactref element="U1" pad="23"/>
<contactref element="JP3" pad="2"/>
</signal>
<signal name="ADC1">
<contactref element="U1" pad="24"/>
<contactref element="JP4" pad="2"/>
</signal>
<signal name="ADC2">
<contactref element="U1" pad="25"/>
<contactref element="JP5" pad="2"/>
</signal>
<signal name="ADC3">
<contactref element="U1" pad="26"/>
<contactref element="JP6" pad="2"/>
</signal>
<signal name="ADC4">
<contactref element="U1" pad="27"/>
</signal>
<signal name="ADC5">
<contactref element="U1" pad="28"/>
</signal>
<signal name="DIG0">
<contactref element="U1" pad="2"/>
</signal>
<signal name="DIG1">
<contactref element="U1" pad="3"/>
</signal>
<signal name="DIG2">
<contactref element="U1" pad="4"/>
<contactref element="JP2" pad="1"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="DIG3">
<contactref element="U1" pad="5"/>
<contactref element="JP2" pad="3"/>
<contactref element="JP2" pad="4"/>
</signal>
<signal name="DIG4">
<contactref element="U1" pad="6"/>
</signal>
<signal name="DIG5">
<contactref element="U1" pad="11"/>
<contactref element="JP7" pad="1"/>
<contactref element="JP7" pad="2"/>
</signal>
<signal name="DIG6">
<contactref element="U1" pad="12"/>
<contactref element="JP7" pad="3"/>
<contactref element="JP7" pad="4"/>
</signal>
<signal name="DIG7">
<contactref element="U1" pad="13"/>
<contactref element="JP7" pad="5"/>
<contactref element="JP7" pad="6"/>
<contactref element="R9" pad="2"/>
<contactref element="SELSW" pad="1"/>
</signal>
<signal name="DIG8">
<contactref element="U1" pad="14"/>
<contactref element="JP7" pad="7"/>
<contactref element="JP7" pad="8"/>
<contactref element="R10" pad="2"/>
<contactref element="SELSW" pad="3"/>
</signal>
<signal name="N$25">
<contactref element="U1" pad="15"/>
</signal>
<signal name="SS">
<contactref element="U1" pad="16"/>
<contactref element="R1" pad="1"/>
<contactref element="MCP4921" pad="2"/>
</signal>
<signal name="MOSI">
<contactref element="U1" pad="17"/>
<contactref element="MCP4921" pad="4"/>
<contactref element="ISP1" pad="4"/>
</signal>
<signal name="MISO">
<contactref element="U1" pad="18"/>
<contactref element="ISP1" pad="1"/>
</signal>
<signal name="SCK">
<contactref element="U1" pad="19"/>
<contactref element="MCP4921" pad="3"/>
<contactref element="ISP1" pad="3"/>
</signal>
<signal name="N$4">
<contactref element="MCP4921" pad="6"/>
<contactref element="R2" pad="1"/>
<contactref element="C4" pad="2"/>
</signal>
<signal name="RST">
<contactref element="U1" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="ISP1" pad="5"/>
<contactref element="RST" pad="3"/>
</signal>
<signal name="N$6">
<contactref element="C5" pad="2"/>
<contactref element="XTAL" pad="2"/>
<contactref element="U1" pad="9"/>
</signal>
<signal name="N$8">
<contactref element="U1" pad="10"/>
<contactref element="XTAL" pad="1"/>
<contactref element="C6" pad="2"/>
</signal>
<signal name="OUTPUT">
<contactref element="MCP4921" pad="8"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="TL072" pad="6"/>
<contactref element="TL072" pad="7"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="R7" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="TL072" pad="3"/>
<contactref element="TL072" pad="5"/>
</signal>
<signal name="N$10">
<contactref element="R4" pad="2"/>
<contactref element="C7" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="TL072" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="C7" pad="2"/>
<contactref element="TL072" pad="1"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="N$13">
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="OUTPUT" pad="1"/>
</signal>
<signal name="N$14">
<contactref element="R8" pad="2"/>
<contactref element="LED" pad="1"/>
</signal>
<signal name="QQQ">
<contactref element="SELSW" pad="2"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="N$17">
<contactref element="T1" pad="1"/>
<contactref element="R12" pad="1"/>
<contactref element="J6" pad="1"/>
</signal>
<signal name="N$19">
<contactref element="R13" pad="2"/>
<contactref element="T1" pad="2"/>
<contactref element="R14" pad="1"/>
</signal>
<signal name="N$20">
<contactref element="GATEIN" pad="2"/>
<contactref element="R14" pad="2"/>
</signal>
<signal name="N$15">
<contactref element="J1" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="J1" pad="2"/>
</signal>
<signal name="N$18">
<contactref element="J1" pad="3"/>
</signal>
<signal name="N$21">
<contactref element="J1" pad="4"/>
</signal>
<signal name="N$22">
<contactref element="J1" pad="5"/>
</signal>
<signal name="N$23">
<contactref element="J1" pad="6"/>
</signal>
<signal name="N$24">
<contactref element="J1" pad="7"/>
</signal>
<signal name="N$26">
<contactref element="J1" pad="8"/>
</signal>
<signal name="N$27">
<contactref element="J1" pad="9"/>
</signal>
<signal name="N$28">
<contactref element="J1" pad="10"/>
</signal>
<signal name="N$29">
<contactref element="J1" pad="11"/>
</signal>
<signal name="N$30">
<contactref element="J1" pad="12"/>
</signal>
<signal name="N$31">
<contactref element="J1" pad="13"/>
</signal>
<signal name="N$32">
<contactref element="J1" pad="14"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
