<?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="60.432" y2="0" width="0" layer="20"/>
<wire x1="60.432" y1="0" x2="60.432" y2="80.061" width="0" layer="20"/>
<wire x1="60.432" y1="80.061" x2="0" y2="80.061" width="0" layer="20"/>
<wire x1="0" y1="80.061" x2="0" y2="0" width="0" layer="20"/>
<text>IN</text>
<text>OUT</text>
<text>OUT</text>
<text>IN</text>
<text>OUT</text>
<text>IN</text>
<text>OUT</text>
<text>IN</text>
<hole x="2.6035" y="2.54" drill="3.2"/>
<hole x="33.528" y="2.54" drill="3.2"/>
<hole x="33.528" y="77.47" drill="3.2"/>
<hole x="2.6035" y="77.47" drill="3.2"/>
<text>ON</text>
<text>10k</text>
<text>10k</text>
<text>10k</text>
<text>10uF</text>
<text>10k</text>
<text>10k</text>
<text>4k7</text>
<text>22pF</text>
<text>22pF</text>
<text>4k7</text>
<text>200</text>
<text>200</text>
<text>200</text>
<text>3k3</text>
<text>3k3</text>
<text>3k3</text>
<text>3k3</text>
<text>220</text>
<text>10uF+</text>
<text>10uF+</text>
<text>10uF</text>
<text>10uF</text>
<text>1uF</text>
<text>BLE</text>
<text>VCC</text>
<text>Data</text>
<text>Clk</text>
<text>GND</text>
</plain>
<libraries>
<library name="SparkFun-FreqCtrl">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find crystals and oscillators and other things that go "tick".&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="SO08">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt; Fits JEDEC packages (narrow SOIC-8)</description>
</package>
<package name="TC38H">
<description>&lt;b&gt;CRYSTAL&lt;/b&gt;</description>
</package>
<package name="CRYSTAL-SMD-5X3">
</package>
</packages>
</library>
<library name="SparkFun-DigitalIC">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find all manner of digital ICs- microcontrollers, memory chips, logic chips, FPGAs, 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="TQFP32-08">
<description>&lt;B&gt;Thin Plasic Quad Flat Package&lt;/B&gt; Grid 0.8 mm</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; 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="1206">
</package>
<package name="EIA3216">
</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; 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="SWITCH-SPST-SMD-A">
</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="1X04">
</package>
<package name="POWER_JACK_PTH_LOCK">
</package>
<package name="1X16">
</package>
<package name="1X02_LOCK">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="AVRISP">
</package>
<package name="1X2-3.5MM">
</package>
<package name="CR1220-SMD">
</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="SOT223">
<description>&lt;b&gt;SOT-223&lt;/b&gt;</description>
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-LED">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete LEDs for illumination or indication, but no displays.&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="LED-1206">
</package>
</packages>
</library>
<library name="SparkFun-DiscreteSemi">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete semiconductors- transistors, diodes, TRIACs, optoisolators, 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="TO220V">
<description>&lt;b&gt;TO 220 Vertical&lt;/b&gt; Package works with various parts including N-Channel MOSFET SparkFun SKU: COM-10213</description>
</package>
<package name="SOT23-3">
</package>
</packages>
</library>
<library name="SparkFun-RF">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find things that send or receive RF- GPS, cellular modules, Bluetooth, WiFi, 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="RN41">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="DS1307" library="SparkFun-FreqCtrl" package="SO08" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="U1" library="SparkFun-DigitalIC" package="TQFP32-08" value="ATMEGA328P">
<attribute name="PROD_ID" value="IC-09069"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Passives" package="1206" value="10K"/>
<element name="S1" library="SparkFun-Electromechanical" package="SWITCH-SPST-SMD-A" value="">
<attribute name="VALUE"/>
</element>
<element name="SHT15" library="SparkFun-Connectors" package="1X04" value="">
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Passives" package="1206" value="10uF"/>
<element name="Y1" library="SparkFun-FreqCtrl" package="TC38H" value="32.768 kHz"/>
<element name="Y2" library="SparkFun-FreqCtrl" package="CRYSTAL-SMD-5X3" value="16MHz">
<attribute name="PROD_ID" value="XTAL-08218"/>
</element>
<element name="C2" library="SparkFun-Passives" package="1206" value="10uF"/>
<element name="ISP" library="adafruit" package="AVRISP" value="AVRISP-6"/>
<element name="R2" library="SparkFun-Passives" package="1206" value="220"/>
<element name="R3" library="SparkFun-Passives" package="1206" value="4k7"/>
<element name="R4" library="SparkFun-Passives" package="1206" value="4k7"/>
<element name="LM1117" library="SparkFun-PowerIC" package="SOT223" value="">
<attribute name="PROD_ID" value="VREG-08170"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="SparkFun-LED" package="LED-1206" value="BLE">
<attribute name="PROD_ID" value="DIO-09955"/>
</element>
<element name="C3" library="SparkFun-Passives" package="1206" value="10uF"/>
<element name="C4" library="SparkFun-Passives" package="1206" value="22pf"/>
<element name="C5" library="SparkFun-Passives" package="1206" value="22pf"/>
<element name="M1" library="SparkFun-DiscreteSemi" package="TO220V" value="">
<attribute name="VALUE"/>
</element>
<element name="M2" library="SparkFun-DiscreteSemi" package="TO220V" value="">
<attribute name="VALUE"/>
</element>
<element name="M3" library="SparkFun-DiscreteSemi" package="TO220V" value="">
<attribute name="VALUE"/>
</element>
<element name="M4" library="SparkFun-DiscreteSemi" package="TO220V" value="">
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun-Passives" package="1206" value="10K"/>
<element name="R6" library="SparkFun-Passives" package="1206" value="10K"/>
<element name="R7" library="SparkFun-Passives" package="1206" value="10K"/>
<element name="R8" library="SparkFun-Passives" package="1206" value="10K"/>
<element name="JP1" library="SparkFun-Connectors" package="POWER_JACK_PTH_LOCK" value="">
<attribute name="SF_ID" value="PRT-00119"/>
<attribute name="PROD_ID" value="CONN-08197"/>
<attribute name="VALUE"/>
</element>
<element name="T4" library="adafruit" package="1X2-3.5MM" value="1X2-3.5MM"/>
<element name="T3" library="adafruit" package="1X2-3.5MM" value="1X2-3.5MM"/>
<element name="T2" library="adafruit" package="1X2-3.5MM" value="1X2-3.5MM"/>
<element name="T1" library="adafruit" package="1X2-3.5MM" value="1X2-3.5MM"/>
<element name="U$1" library="SparkFun-RF" package="RN41" value="BLUETOOTH-RN41&quot;"/>
<element name="U2" library="SparkFun-PowerIC" package="SOT23-5" value="">
<attribute name="PROD_ID" value="VREG-00822"/>
<attribute name="VALUE"/>
</element>
<element name="Q1" library="SparkFun-DiscreteSemi" package="SOT23-3" value="">
<attribute name="PROD_ID" value="TRANS-00830"/>
<attribute name="VALUE"/>
</element>
<element name="Q2" library="SparkFun-DiscreteSemi" package="SOT23-3" value="">
<attribute name="PROD_ID" value="TRANS-00830"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="SparkFun-Passives" package="EIA3216" value="10uF"/>
<element name="C7" library="SparkFun-Passives" package="EIA3216" value="10uF"/>
<element name="C8" library="SparkFun-Passives" package="1206" value="1uF"/>
<element name="R9" library="SparkFun-Passives" package="1206" value="1k5"/>
<element name="R10" library="SparkFun-Passives" package="1206" value="1k5"/>
<element name="R11" library="SparkFun-Passives" package="1206" value="1k5"/>
<element name="R12" library="SparkFun-Passives" package="1206" value="1k5"/>
<element name="R13" library="SparkFun-Passives" package="1206" value="200"/>
<element name="CNCT" library="SparkFun-LED" package="LED-1206" value="GRN">
<attribute name="PROD_ID" value="DIO-09955"/>
<attribute name="NAME"/>
</element>
<element name="STATUS" library="SparkFun-LED" package="LED-1206" value="RED">
<attribute name="PROD_ID" value="DIO-09955"/>
<attribute name="NAME"/>
</element>
<element name="R14" library="SparkFun-Passives" package="1206" value="200"/>
<element name="R15" library="SparkFun-Passives" package="1206" value="200"/>
<element name="JP2" library="SparkFun-Connectors" package="1X16" value="M16PTH"/>
<element name="U$2" library="adafruit" package="CR1220-SMD" value="">
<attribute name="VALUE"/>
</element>
<element name="PWR" library="SparkFun-Connectors" package="1X02_LOCK" value="M02LOCK"/>
</elements>
<signals>
<signal name="VIN">
<contactref element="S1" pad="2"/>
<contactref element="JP1" pad="PWR"/>
</signal>
<signal name="N$5">
<contactref element="U1" pad="20"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="RST">
<contactref element="R1" pad="1"/>
<contactref element="U1" pad="29"/>
<contactref element="ISP" pad="5"/>
</signal>
<signal name="PC0">
<contactref element="U1" pad="23"/>
<contactref element="JP2" pad="11"/>
</signal>
<signal name="PC1">
<contactref element="U1" pad="24"/>
<contactref element="JP2" pad="12"/>
</signal>
<signal name="PC2">
<contactref element="U1" pad="25"/>
<contactref element="JP2" pad="13"/>
</signal>
<signal name="PC3">
<contactref element="U1" pad="26"/>
<contactref element="JP2" pad="14"/>
</signal>
<signal name="PC4">
<contactref element="U1" pad="27"/>
<contactref element="DS1307" pad="5"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="PC5">
<contactref element="U1" pad="28"/>
<contactref element="DS1307" pad="6"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="ADC6">
<contactref element="U1" pad="19"/>
</signal>
<signal name="ADC7">
<contactref element="U1" pad="22"/>
</signal>
<signal name="PD0">
<contactref element="U1" pad="30"/>
<contactref element="Q1" pad="3"/>
<contactref element="R10" pad="2"/>
</signal>
<signal name="PD1">
<contactref element="U1" pad="31"/>
<contactref element="Q2" pad="3"/>
<contactref element="R12" pad="2"/>
</signal>
<signal name="PD2">
<contactref element="U1" pad="32"/>
<contactref element="SHT15" pad="2"/>
</signal>
<signal name="PD3">
<contactref element="U1" pad="1"/>
<contactref element="SHT15" pad="3"/>
</signal>
<signal name="PD4">
<contactref element="U1" pad="2"/>
<contactref element="JP2" pad="4"/>
</signal>
<signal name="PD5">
<contactref element="U1" pad="9"/>
<contactref element="JP2" pad="5"/>
</signal>
<signal name="PD6">
<contactref element="U1" pad="10"/>
<contactref element="JP2" pad="6"/>
</signal>
<signal name="PD7">
<contactref element="U1" pad="11"/>
</signal>
<signal name="PB0">
<contactref element="U1" pad="12"/>
</signal>
<signal name="PB1">
<contactref element="U1" pad="13"/>
<contactref element="M1" pad="1"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="PB2">
<contactref element="U1" pad="14"/>
<contactref element="M2" pad="1"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="PB3">
<contactref element="U1" pad="15"/>
<contactref element="ISP" pad="4"/>
<contactref element="M3" pad="1"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="PB4">
<contactref element="U1" pad="16"/>
<contactref element="ISP" pad="1"/>
<contactref element="M4" pad="1"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="PB5">
<contactref element="U1" pad="17"/>
<contactref element="ISP" pad="3"/>
</signal>
<signal name="XTAL2">
<contactref element="U1" pad="8"/>
<contactref element="Y2" pad="3"/>
<contactref element="C5" pad="1"/>
</signal>
<signal name="XTAL1">
<contactref element="U1" pad="7"/>
<contactref element="Y2" pad="1"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="GND">
<contactref element="C2" pad="2"/>
<contactref element="U1" pad="5"/>
<contactref element="U1" pad="21"/>
<contactref element="U1" pad="3"/>
<contactref element="DS1307" pad="4"/>
<contactref element="ISP" pad="6"/>
<contactref element="D1" pad="C"/>
<contactref element="C1" pad="2"/>
<contactref element="LM1117" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="R7" pad="2"/>
<contactref element="JP1" pad="GNDBREAK"/>
<contactref element="JP1" pad="GND"/>
<contactref element="SHT15" pad="1"/>
<contactref element="U$1" pad="1"/>
<contactref element="U$1" pad="28"/>
<contactref element="U$1" pad="12"/>
<contactref element="U$1" pad="29"/>
<contactref element="C6" pad="C"/>
<contactref element="U2" pad="2"/>
<contactref element="C7" pad="C"/>
<contactref element="C8" pad="2"/>
<contactref element="STATUS" pad="C"/>
<contactref element="R14" pad="2"/>
<contactref element="CNCT" pad="C"/>
<contactref element="JP2" pad="1"/>
<contactref element="JP2" pad="16"/>
<contactref element="JP2" pad="3"/>
<contactref element="U$2" pad="-"/>
<contactref element="PWR" pad="1"/>
</signal>
<signal name="N$34">
<contactref element="DS1307" pad="1"/>
<contactref element="Y1" pad="2"/>
</signal>
<signal name="N$35">
<contactref element="DS1307" pad="2"/>
<contactref element="Y1" pad="1"/>
</signal>
<signal name="N$41">
<contactref element="DS1307" pad="3"/>
<contactref element="U$2" pad="+$1"/>
<contactref element="U$2" pad="+$2"/>
</signal>
<signal name="VCC">
<contactref element="DS1307" pad="8"/>
<contactref element="R3" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="U1" pad="18"/>
<contactref element="U1" pad="6"/>
<contactref element="U1" pad="4"/>
<contactref element="R1" pad="2"/>
<contactref element="ISP" pad="2"/>
<contactref element="LM1117" pad="4"/>
<contactref element="LM1117" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="SHT15" pad="4"/>
<contactref element="U2" pad="1"/>
<contactref element="U2" pad="3"/>
<contactref element="C6" pad="A"/>
<contactref element="R10" pad="1"/>
<contactref element="R12" pad="1"/>
<contactref element="JP2" pad="15"/>
<contactref element="JP2" pad="2"/>
<contactref element="PWR" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="S1" pad="3"/>
<contactref element="LM1117" pad="3"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R2" pad="2"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="RI4">
<contactref element="M4" pad="2"/>
<contactref element="T4" pad="2"/>
</signal>
<signal name="RI3">
<contactref element="M3" pad="2"/>
<contactref element="T3" pad="2"/>
</signal>
<signal name="RI2">
<contactref element="M2" pad="2"/>
<contactref element="T2" pad="2"/>
</signal>
<signal name="RI1">
<contactref element="M1" pad="2"/>
<contactref element="T1" pad="2"/>
</signal>
<signal name="RO4">
<contactref element="M4" pad="3"/>
<contactref element="T4" pad="1"/>
</signal>
<signal name="RO3">
<contactref element="M3" pad="3"/>
<contactref element="T3" pad="1"/>
</signal>
<signal name="RO2">
<contactref element="M2" pad="3"/>
<contactref element="T2" pad="1"/>
</signal>
<signal name="RO1">
<contactref element="M1" pad="3"/>
<contactref element="T1" pad="1"/>
</signal>
<signal name="SQW">
<contactref element="DS1307" pad="7"/>
</signal>
<signal name="3.3V">
<contactref element="U2" pad="5"/>
<contactref element="C7" pad="A"/>
<contactref element="C8" pad="1"/>
<contactref element="Q1" pad="1"/>
<contactref element="R9" pad="1"/>
<contactref element="Q2" pad="1"/>
<contactref element="R11" pad="1"/>
<contactref element="U$1" pad="11"/>
</signal>
<signal name="RX">
<contactref element="U$1" pad="13"/>
<contactref element="Q1" pad="2"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="TX">
<contactref element="U$1" pad="14"/>
<contactref element="Q2" pad="2"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="RTS">
<contactref element="U$1" pad="15"/>
</signal>
<signal name="CTS">
<contactref element="U$1" pad="16"/>
</signal>
<signal name="N$2">
<contactref element="R14" pad="1"/>
<contactref element="U$1" pad="22"/>
</signal>
<signal name="N$4">
<contactref element="R13" pad="2"/>
<contactref element="STATUS" pad="A"/>
</signal>
<signal name="N$6">
<contactref element="R15" pad="2"/>
<contactref element="CNCT" pad="A"/>
</signal>
<signal name="N$7">
<contactref element="U$1" pad="21"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R15" pad="1"/>
<contactref element="U$1" pad="19"/>
</signal>
<signal name="HTSHLD">
</signal>
<signal name="HTSHLD2">
</signal>
</signals>
</board>
</drawing>
</eagle>
