<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.4.0">
<drawing>
<board>
<plain>
<text>MC ON</text>
<text>MC OFF</text>
<text>GND</text>
<text>+</text>
<text>relay</text>
<wire x1="0" y1="0" x2="0" y2="70" width="0" layer="20"/>
<wire x1="0" y1="70" x2="100" y2="70" width="0" layer="20"/>
<wire x1="100" y1="70" x2="100" y2="0" width="0" layer="20"/>
<wire x1="100" y1="0" x2="0" y2="0" width="0" layer="20"/>
<text>solar panel
12 V</text>
<wire x1="-2" y1="-2" x2="-2" y2="72" width="1.9304" layer="46"/>
<wire x1="-2" y1="72" x2="102" y2="72" width="1.9304" layer="46"/>
<wire x1="102" y1="72" x2="102" y2="-2" width="1.9304" layer="46"/>
<wire x1="102" y1="-2" x2="-2" y2="-2" width="1.9304" layer="46"/>
<text>micro
controller</text>
<text>battery charge
8.4 V</text>
<text>GND</text>
<text>battery
LiPo2S</text>
<hole x="3" y="67" drill="3"/>
<hole x="97" y="67" drill="3"/>
<hole x="3" y="3" drill="3"/>
<hole x="97" y="3" drill="3"/>
<text>+</text>
<text>+5 V</text>
<text>GND</text>
<text>+</text>
<text>-</text>
</plain>
<libraries>
<library name="x-io">
<packages>
<package name="DIL18">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="40xx">
<description>&lt;b&gt;CMOS Logic Devices, 4000 Series&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Motorola &lt;i&gt;CMOS LOGIC DATA&lt;/i&gt;; book, 02/88, DL131 REV 1
&lt;li&gt;http://www.elexp.com
&lt;li&gt;http://www.intersil.com
&lt;li&gt;http://www.ls3c.com.tw/product/1/COMOS.html
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</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="1X02">
</package>
<package name="1X03_LONGPADS">
</package>
</packages>
</library>
<library name="con-lstb">
<description>&lt;b&gt;Pin Headers&lt;/b&gt;&lt;p&gt;
Naming:&lt;p&gt;
MA = male&lt;p&gt;
# contacts - # rows&lt;p&gt;
W = angled&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="MA10-1">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="resistor-net">
<description>&lt;b&gt;Generic Resistor Networks&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="RN-11">
<description>&lt;b&gt;RESISTOR NETWORK&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="tmb_resistor">
<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>
<library name="relay">
<description>&lt;b&gt;Relays&lt;/b&gt;&lt;p&gt;
&lt;ul&gt;
&lt;li&gt;Eichhoff
&lt;li&gt;Finder
&lt;li&gt;Fujitsu
&lt;li&gt;HAMLIN
&lt;li&gt;OMRON
&lt;li&gt;Matsushita
&lt;li&gt;NAiS
&lt;li&gt;Siemens
&lt;li&gt;Schrack
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="G5V-2">
<description>&lt;b&gt;OMRON PCB Relay&lt;/b&gt;&lt;p&gt;
Source: http://www.omron.com/ecb/products/pdf/en-g5v2.pdf</description>
</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-SPDT">
</package>
</packages>
</library>
<library name="tmb_connectors">
<packages>
<package name="4X3">
</package>
</packages>
</library>
<library name="con-wago-508">
<description>&lt;b&gt;Wago Screw Clamps&lt;/b&gt;&lt;p&gt;
Grid 5.08 mm&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="W237-132">
<description>&lt;b&gt;WAGO SREW CLAMP&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="transistor-neu-to92">
<description>&lt;b&gt;NPN 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="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="tmb_boards">
<packages>
<package name="DROK_STEPDOWN_CONV_01">
</package>
<package name="RIORAND_STEPDOWNCONV_VER2">
</package>
</packages>
</library>
<library name="SparkFun-Capacitors">
<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="CPOL-RADIAL-1000UF-25V">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="40xx" package="DIL16" value="4044N"/>
<element name="U2" library="x-io" package="DIL18" value="LM3914"/>
<element name="SV1" library="con-lstb" package="MA10-1" value="">
<attribute name="MPN" value=""/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="MF" value=""/>
</element>
<element name="RN2" library="resistor-net" package="RN-11" value="">
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
</element>
<element name="JP1" library="SparkFun-Connectors" package="1X02" value=""/>
<element name="R2" library="tmb_resistor" package="0204/7" value="18K"/>
<element name="R3" library="tmb_resistor" package="0204/7" value="68K"/>
<element name="R4" library="tmb_resistor" package="0204/7" value="10K"/>
<element name="R5" library="tmb_resistor" package="0204/7" value="680"/>
<element name="R6" library="tmb_resistor" package="0204/7" value="3.3K"/>
<element name="S1" library="SparkFun-Electromechanical" package="SWITCH-SPDT" value="">
<attribute name="PROD_ID" value="SWCH-08261"/>
</element>
<element name="JP5" library="tmb_connectors" package="4X3" value=""/>
<element name="X1" library="con-wago-508" package="W237-132" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="K2" library="relay" package="G5V-2" value="G5V-2">
<attribute name="OC_FARNELL" value="9949488"/>
<attribute name="MF" value=""/>
<attribute name="OC_NEWARK" value="78K5703"/>
<attribute name="MPN" value="G5V-2 5DC"/>
</element>
<element name="R7" library="tmb_resistor" package="0204/7" value="100"/>
<element name="R8" library="tmb_resistor" package="0204/7" value="220"/>
<element name="T2" library="transistor-neu-to92" package="TO92" value="BC337"/>
<element name="D1" library="diode" package="DO41-10" value=""/>
<element name="U$1" library="tmb_boards" package="DROK_STEPDOWN_CONV_01" value="DROK_STEPDOWN_CONV_01"/>
<element name="U$2" library="tmb_boards" package="RIORAND_STEPDOWNCONV_VER2" value="RIORAND_STEPDOWN_CONV_VER221X43.2MM"/>
<element name="JP3" library="SparkFun-Connectors" package="1X03_LONGPADS" value=""/>
<element name="C2" library="SparkFun-Capacitors" package="CPOL-RADIAL-1000UF-25V" value="CAP-09538">
<attribute name="PROD_ID" value="CAP-09538"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="IC1" pad="8"/>
<contactref element="U2" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="U2" pad="8"/>
<contactref element="JP5" pad="7"/>
<contactref element="JP5" pad="2"/>
<contactref element="JP5" pad="8"/>
<contactref element="JP5" pad="1"/>
<contactref element="X1" pad="1"/>
<contactref element="K2" pad="1"/>
<contactref element="D1" pad="A"/>
<contactref element="JP3" pad="1"/>
<contactref element="C2" pad="-"/>
</signal>
<signal name="V_BATT">
<contactref element="IC1" pad="16"/>
<contactref element="U2" pad="3"/>
<contactref element="RN2" pad="1"/>
<contactref element="IC1" pad="5"/>
<contactref element="R2" pad="2"/>
<contactref element="S1" pad="2"/>
<contactref element="JP5" pad="5"/>
<contactref element="JP5" pad="12"/>
<contactref element="JP5" pad="6"/>
<contactref element="JP5" pad="11"/>
<contactref element="T2" pad="3"/>
<contactref element="K2" pad="9"/>
</signal>
<signal name="N$14">
<contactref element="U2" pad="1"/>
<contactref element="RN2" pad="2"/>
<contactref element="SV1" pad="1"/>
</signal>
<signal name="N$15">
<contactref element="U2" pad="18"/>
<contactref element="RN2" pad="3"/>
<contactref element="SV1" pad="2"/>
</signal>
<signal name="N$16">
<contactref element="U2" pad="17"/>
<contactref element="RN2" pad="4"/>
<contactref element="SV1" pad="3"/>
</signal>
<signal name="N$17">
<contactref element="U2" pad="16"/>
<contactref element="RN2" pad="5"/>
<contactref element="SV1" pad="4"/>
</signal>
<signal name="N$18">
<contactref element="U2" pad="15"/>
<contactref element="RN2" pad="6"/>
<contactref element="SV1" pad="5"/>
</signal>
<signal name="N$19">
<contactref element="U2" pad="14"/>
<contactref element="SV1" pad="6"/>
<contactref element="RN2" pad="7"/>
</signal>
<signal name="N$20">
<contactref element="U2" pad="13"/>
<contactref element="SV1" pad="7"/>
<contactref element="RN2" pad="8"/>
</signal>
<signal name="N$21">
<contactref element="U2" pad="12"/>
<contactref element="SV1" pad="8"/>
<contactref element="RN2" pad="9"/>
</signal>
<signal name="N$22">
<contactref element="U2" pad="11"/>
<contactref element="SV1" pad="9"/>
<contactref element="RN2" pad="10"/>
</signal>
<signal name="N$23">
<contactref element="U2" pad="10"/>
<contactref element="SV1" pad="10"/>
<contactref element="RN2" pad="11"/>
</signal>
<signal name="N$1">
<contactref element="JP1" pad="2"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="N$3">
<contactref element="JP1" pad="1"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$28">
<contactref element="R6" pad="2"/>
<contactref element="R5" pad="1"/>
<contactref element="U2" pad="5"/>
</signal>
<signal name="N$29">
<contactref element="R5" pad="2"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="N$30">
<contactref element="U2" pad="6"/>
<contactref element="U2" pad="7"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="R3" pad="2"/>
<contactref element="U2" pad="4"/>
</signal>
<signal name="N$2">
<contactref element="S1" pad="3"/>
<contactref element="X1" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="R8" pad="1"/>
<contactref element="T2" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="R7" pad="1"/>
<contactref element="T2" pad="2"/>
<contactref element="C2" pad="+"/>
</signal>
<signal name="N$13">
<contactref element="K2" pad="16"/>
<contactref element="R8" pad="2"/>
<contactref element="D1" pad="C"/>
</signal>
<signal name="N$4">
<contactref element="IC1" pad="9"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="K2" pad="13"/>
<contactref element="JP3" pad="3"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
