<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="89.515" y2="0" width="0" layer="20"/>
<wire x1="89.515" y1="0" x2="89.515" y2="75.87" width="0" layer="20"/>
<wire x1="89.515" y1="75.87" x2="0" y2="75.87" width="0" layer="20"/>
<wire x1="0" y1="75.87" x2="0" y2="0" width="0" layer="20"/>
<text>BATTERY</text>
</plain>
<libraries>
<library name="SparkFun">
<packages>
<package name="CAP-PTH-SMALL-KIT">
</package>
<package name="1X03">
</package>
<package name="SWITCH-SPDT">
</package>
<package name="1206">
</package>
<package name="SMA-DIODE">
<description>&lt;B&gt;Diode&lt;/B&gt;&lt;p&gt;
Basic SMA packaged diode. Good for reverse polarization protection. Common part #: MBRA140</description>
</package>
<package name="EIA3216">
</package>
</packages>
</library>
<library name="led">
<packages>
<package name="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
</packages>
</library>
<library name="allegro">
<packages>
<package name="SIP3-UA">
<description>&lt;b&gt;Type: 3-pin SIP, conventional leadframe&lt;/b&gt;&lt;p&gt;
Source: http://www.allegromicro.com/en/Products/Packaging/pkghall1.pdf</description>
</package>
</packages>
</library>
<library name="outreach">
<packages>
<package name="SDMICRO_BREAKOUT">
</package>
<package name="RTC_BREAKOUT">
</package>
<package name="COMPASS_BREAKOUT_2">
</package>
<package name="LED_SCREEN">
</package>
<package name="BLUE_SMIRF_SILVER">
</package>
<package name="SEEEDUINO_MEGA">
<description>Package generated by &lt;b&gt;make-group2pac.ulp&lt;/b&gt;&lt;p&gt; from: C:/Users/john.dicecco/Desktop/DT/OUTREACH/SeaSense_2017/Seeeduino_Mega.brd&lt;br&gt; at: 5/15/2017 9:31 AM</description>
</package>
</packages>
</library>
<library name="con-molex">
<packages>
<package name="6410-03">
<description>&lt;b&gt;MOLEX 2.54mm KK  CONNECTOR&lt;/b&gt;</description>
</package>
<package name="6410-02">
<description>&lt;b&gt;MOLEX 2.54mm KK  CONNECTOR&lt;/b&gt;</description>
</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; 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>
</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="JST-2-PTH-VERT">
</package>
<package name="1X02">
</package>
</packages>
</library>
<library name="analog-devices">
<packages>
<package name="SO8">
<description>&lt;b&gt;8-Lead Small Outline IC&lt;/b&gt; (SO-8)&lt;p&gt;
Source: http://www.analog.com/UploadedFiles/Data_Sheets/703465986AD8611_2_0.pdf</description>
</package>
</packages>
</library>
<library name="maxim">
<packages>
<package name="SO08">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt; SOIC 150 mil</description>
</package>
</packages>
</library>
<library name="linear">
<packages>
<package name="SO14">
<description>&lt;b&gt;Small Outline Package 14&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C12" library="SparkFun" package="CAP-PTH-SMALL-KIT" value="0.1u"/>
<element name="GREEN_LED_1" library="led" package="LED3MM" value="led">
<attribute name="NAME"/>
</element>
<element name="GREEN_LED_2" library="led" package="LED3MM" value="led">
<attribute name="NAME"/>
</element>
<element name="IC5" library="allegro" package="SIP3-UA" value="HALL_EFFECT_SENSOR">
<attribute name="OC_FARNELL" value="1521672"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="outreach" package="SDMICRO_BREAKOUT" value="SDMICRO_BREAKOUT"/>
<element name="J2" library="outreach" package="RTC_BREAKOUT" value="RTC_BREAKOUT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J3" library="outreach" package="COMPASS_BREAKOUT_2" value="COMPASS_BREAKOUT_2">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J4" library="outreach" package="LED_SCREEN" value="LED_SCREEN">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LIGHT_SENSOR" library="SparkFun" package="1X03" value=""/>
<element name="POWER_SWITCH" library="SparkFun" package="SWITCH-SPDT" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="PRESS" library="con-molex" package="6410-03" value="">
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
</element>
<element name="R1" library="SparkFun-Resistors" package="1206" value="390"/>
<element name="R20" library="SparkFun" package="1206" value="1.8k"/>
<element name="R21" library="SparkFun" package="1206" value="1.8k"/>
<element name="R22" library="SparkFun" package="1206" value="1.8k"/>
<element name="R23" library="SparkFun" package="1206" value="1.8k"/>
<element name="R26" library="SparkFun-Resistors" package="1206" value="390"/>
<element name="TEMP" library="con-molex" package="6410-03" value="">
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
</element>
<element name="U$1" library="outreach" package="BLUE_SMIRF_SILVER" value="BLUE_SMIRF_SILVER"/>
<element name="U1" library="outreach" package="SEEEDUINO_MEGA" value="SEEEDUINO_MEGA"/>
<element name="J5" library="SparkFun-Connectors" package="JST-2-PTH-VERT" value=""/>
<element name="COND" library="con-molex" package="6410-02" value="22-27-2021-02">
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="NAME"/>
</element>
<element name="R5" library="SparkFun" package="1206" value="100k"/>
<element name="D1" library="SparkFun" package="SMA-DIODE" value="1N4001"/>
<element name="D2" library="SparkFun" package="SMA-DIODE" value="1N4001"/>
<element name="C3" library="SparkFun" package="1206" value=".1nF"/>
<element name="R7" library="SparkFun" package="1206" value="1k"/>
<element name="R8" library="SparkFun" package="1206" value="1k"/>
<element name="R9" library="SparkFun" package="1206" value="1K"/>
<element name="IC2" library="analog-devices" package="SO8" value="AD620R">
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="1464424"/>
<attribute name="MPN" value="AD620AR"/>
<attribute name="OC_NEWARK" value="05F7109"/>
</element>
<element name="R11" library="SparkFun" package="1206" value="10k"/>
<element name="C4" library="SparkFun" package="EIA3216" value="100u"/>
<element name="IC3" library="maxim" package="SO08" value="ICL7660">
<attribute name="MF" value="MAXIM"/>
<attribute name="OC_FARNELL" value="9724710"/>
<attribute name="MPN" value="ICL7660CSA"/>
<attribute name="OC_NEWARK" value="34C3732"/>
</element>
<element name="IC4" library="maxim" package="SO08" value="ICL7660">
<attribute name="MF" value="MAXIM"/>
<attribute name="OC_FARNELL" value="9724710"/>
<attribute name="MPN" value="ICL7660CSA"/>
<attribute name="OC_NEWARK" value="34C3732"/>
</element>
<element name="C5" library="SparkFun" package="EIA3216" value="10uC"/>
<element name="C6" library="SparkFun" package="EIA3216" value="10uC"/>
<element name="C7" library="SparkFun" package="EIA3216" value="100uC"/>
<element name="C10" library="SparkFun" package="EIA3216" value="100u"/>
<element name="IC1" library="linear" package="SO14" value="LM324D"/>
<element name="R3" library="SparkFun" package="1206" value="10k"/>
<element name="R4" library="SparkFun" package="1206" value="4.7k"/>
<element name="R6" library="SparkFun" package="1206" value="4.7k"/>
<element name="C1" library="SparkFun" package="1206" value="0.1u"/>
<element name="C2" library="SparkFun" package="1206" value="0.1u"/>
<element name="C15" library="SparkFun" package="1206" value="0.01u"/>
<element name="C16" library="SparkFun" package="1206" value="0.01u"/>
<element name="R2" library="SparkFun" package="1206" value="10k"/>
<element name="C17" library="SparkFun" package="1206" value="0.1u"/>
<element name="R10" library="SparkFun" package="1206" value="100k"/>
<element name="R12" library="SparkFun" package="1206" value="100k"/>
<element name="R18" library="SparkFun" package="1206" value="68k"/>
<element name="R13" library="SparkFun" package="1206" value="51k"/>
<element name="R24" library="SparkFun" package="1206" value="10K"/>
<element name="J7" library="SparkFun-Connectors" package="1X02" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="LIGHT_SENSOR" pad="1"/>
<contactref element="TEMP" pad="1"/>
<contactref element="PRESS" pad="1"/>
<contactref element="J2" pad="4"/>
<contactref element="C12" pad="2"/>
<contactref element="R21" pad="1"/>
<contactref element="R23" pad="1"/>
<contactref element="IC5" pad="2"/>
<contactref element="U$1" pad="P$3"/>
<contactref element="J3" pad="3"/>
<contactref element="J4" pad="8"/>
<contactref element="J1" pad="7"/>
<contactref element="U1" pad="GND1"/>
<contactref element="U1" pad="GND2"/>
<contactref element="U1" pad="GND4"/>
<contactref element="U1" pad="GND3"/>
<contactref element="J5" pad="1"/>
<contactref element="IC3" pad="3"/>
<contactref element="IC4" pad="3"/>
<contactref element="R11" pad="1"/>
<contactref element="R5" pad="2"/>
<contactref element="R9" pad="2"/>
<contactref element="IC2" pad="5"/>
<contactref element="C4" pad="C"/>
<contactref element="C10" pad="C"/>
<contactref element="C7" pad="A"/>
<contactref element="C16" pad="1"/>
<contactref element="IC1" pad="12"/>
<contactref element="R24" pad="2"/>
</signal>
<signal name="LED_CLK">
<contactref element="J4" pad="2"/>
<contactref element="U1" pad="5"/>
</signal>
<signal name="PWR_LED_GND">
<contactref element="R1" pad="1"/>
<contactref element="U1" pad="3"/>
</signal>
<signal name="LED_CS">
<contactref element="J4" pad="5"/>
<contactref element="U1" pad="7"/>
</signal>
<signal name="VCC">
<contactref element="U1" pad="VCC"/>
</signal>
<signal name="LED_RST">
<contactref element="J4" pad="4"/>
<contactref element="U1" pad="48"/>
</signal>
<signal name="LED_SA0_DC">
<contactref element="J4" pad="3"/>
<contactref element="U1" pad="49"/>
</signal>
<signal name="+5V">
<contactref element="PRESS" pad="3"/>
<contactref element="TEMP" pad="3"/>
<contactref element="J2" pad="5"/>
<contactref element="J4" pad="7"/>
<contactref element="J3" pad="1"/>
<contactref element="J1" pad="1"/>
<contactref element="U1" pad="5V"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC4" pad="8"/>
<contactref element="IC2" pad="7"/>
</signal>
<signal name="TEMP">
<contactref element="R22" pad="1"/>
<contactref element="R23" pad="2"/>
<contactref element="U1" pad="A10"/>
</signal>
<signal name="I2C_SDA">
<contactref element="J2" pad="1"/>
<contactref element="J3" pad="5"/>
<contactref element="U1" pad="SDA"/>
</signal>
<signal name="I2C_SCL">
<contactref element="J2" pad="2"/>
<contactref element="J3" pad="4"/>
<contactref element="U1" pad="SCL"/>
</signal>
<signal name="PRESSURE">
<contactref element="R20" pad="1"/>
<contactref element="R21" pad="2"/>
<contactref element="U1" pad="A11"/>
</signal>
<signal name="+3V3">
<contactref element="C12" pad="1"/>
<contactref element="LIGHT_SENSOR" pad="2"/>
<contactref element="IC5" pad="1"/>
<contactref element="GREEN_LED_1" pad="A"/>
<contactref element="R26" pad="1"/>
<contactref element="U1" pad="3V3"/>
</signal>
<signal name="SD_CS">
<contactref element="J1" pad="2"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="SD_MISO">
<contactref element="J1" pad="3"/>
<contactref element="U1" pad="51"/>
</signal>
<signal name="SD_SCK">
<contactref element="J1" pad="4"/>
<contactref element="U1" pad="52"/>
</signal>
<signal name="SD_MOSI">
<contactref element="J1" pad="5"/>
<contactref element="U1" pad="50"/>
</signal>
<signal name="SD_CD">
<contactref element="J1" pad="6"/>
<contactref element="U1" pad="46"/>
</signal>
<signal name="LIGHT_OUT">
<contactref element="LIGHT_SENSOR" pad="3"/>
<contactref element="U1" pad="47"/>
</signal>
<signal name="BT_RX">
<contactref element="U$1" pad="P$5"/>
<contactref element="U1" pad="TX"/>
</signal>
<signal name="BT_TX">
<contactref element="U$1" pad="P$4"/>
<contactref element="U1" pad="RX"/>
</signal>
<signal name="N$18">
<contactref element="TEMP" pad="2"/>
<contactref element="R22" pad="2"/>
</signal>
<signal name="N$22">
<contactref element="PRESS" pad="2"/>
<contactref element="R20" pad="2"/>
</signal>
<signal name="N$23">
<contactref element="POWER_SWITCH" pad="3"/>
</signal>
<signal name="N$39">
<contactref element="R26" pad="2"/>
<contactref element="GREEN_LED_2" pad="A"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="P$6"/>
<contactref element="U$1" pad="P$1"/>
</signal>
<signal name="COND_SIG">
<contactref element="U1" pad="A13"/>
<contactref element="C4" pad="A"/>
<contactref element="R8" pad="1"/>
<contactref element="C10" pad="A"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="1K_SQR">
<contactref element="U1" pad="13"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="LED_DATA">
<contactref element="J4" pad="1"/>
<contactref element="U1" pad="6"/>
</signal>
<signal name="N$7">
<contactref element="J4" pad="6"/>
</signal>
<signal name="BT_VCC">
<contactref element="U$1" pad="P$2"/>
<contactref element="U1" pad="38"/>
</signal>
<signal name="LPWR_WRT_DATA">
<contactref element="IC5" pad="3"/>
<contactref element="GREEN_LED_2" pad="K"/>
<contactref element="U1" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="GREEN_LED_1" pad="K"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$14">
<contactref element="U1" pad="A15"/>
</signal>
<signal name="N$15">
<contactref element="U1" pad="A14"/>
</signal>
<signal name="N$17">
<contactref element="U1" pad="A12"/>
</signal>
<signal name="N$21">
<contactref element="U1" pad="A9"/>
</signal>
<signal name="N$24">
<contactref element="U1" pad="A8"/>
</signal>
<signal name="VIN">
<contactref element="U1" pad="VIN"/>
<contactref element="POWER_SWITCH" pad="1"/>
</signal>
<signal name="PROBE1">
<contactref element="COND" pad="1"/>
<contactref element="IC2" pad="3"/>
<contactref element="IC1" pad="14"/>
<contactref element="R18" pad="2"/>
<contactref element="R24" pad="1"/>
<contactref element="J7" pad="1"/>
</signal>
<signal name="PROBE2">
<contactref element="COND" pad="2"/>
<contactref element="IC2" pad="2"/>
<contactref element="R11" pad="2"/>
<contactref element="J7" pad="2"/>
</signal>
<signal name="VBATT">
<contactref element="J5" pad="2"/>
<contactref element="POWER_SWITCH" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="R5" pad="1"/>
<contactref element="IC2" pad="6"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="N$9">
<contactref element="D1" pad="A"/>
<contactref element="C3" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="N$11">
<contactref element="D2" pad="A"/>
<contactref element="D1" pad="C"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$12">
<contactref element="C3" pad="2"/>
<contactref element="D2" pad="C"/>
<contactref element="R9" pad="1"/>
<contactref element="IC1" pad="10"/>
</signal>
<signal name="N$13">
<contactref element="R7" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="IC1" pad="9"/>
</signal>
<signal name="-5V">
<contactref element="IC3" pad="5"/>
<contactref element="C7" pad="C"/>
<contactref element="IC4" pad="5"/>
<contactref element="IC1" pad="11"/>
<contactref element="IC2" pad="4"/>
</signal>
<signal name="N$1">
<contactref element="IC3" pad="2"/>
<contactref element="C5" pad="A"/>
</signal>
<signal name="N$19">
<contactref element="C5" pad="C"/>
<contactref element="IC3" pad="4"/>
</signal>
<signal name="N$20">
<contactref element="IC4" pad="2"/>
<contactref element="C6" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="C6" pad="C"/>
<contactref element="IC4" pad="4"/>
</signal>
<signal name="N$4">
<contactref element="R3" pad="2"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R4" pad="2"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="C2" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="2"/>
<contactref element="C17" pad="1"/>
</signal>
<signal name="N$25">
<contactref element="C15" pad="1"/>
<contactref element="C16" pad="2"/>
</signal>
<signal name="N$26">
<contactref element="IC1" pad="3"/>
<contactref element="R2" pad="2"/>
<contactref element="C15" pad="2"/>
</signal>
<signal name="N$27">
<contactref element="C1" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="N$28">
<contactref element="IC1" pad="13"/>
<contactref element="R10" pad="2"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="N$29">
<contactref element="R10" pad="1"/>
<contactref element="C17" pad="2"/>
</signal>
<signal name="N$30">
<contactref element="R12" pad="2"/>
<contactref element="R18" pad="1"/>
</signal>
<signal name="N$31">
<contactref element="IC2" pad="8"/>
<contactref element="R13" pad="2"/>
</signal>
<signal name="N$32">
<contactref element="IC2" pad="1"/>
<contactref element="R13" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
