<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.2.2">
<drawing>
<schematic>
<libraries>
<library name="fab">
<packages>
<package name="6MM_SWITCH">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
<package name="LED1206">
<description>LED 1206 pads (standard pattern)</description>
</package>
<package name="LED1206FAB">
<description>LED1206 FAB style (smaller pads to allow trace between)</description>
</package>
<package name="5MM">
<description>5mm round through hole part.</description>
</package>
<package name="R1206">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;</description>
</package>
<package name="R1206W">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
wave soldering</description>
</package>
<package name="R1206FAB">
</package>
<package name="SOIC14">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt;</description>
</package>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="QFN/MLF20">
<description>&lt;b&gt;HP-VFQFP-N20&lt;/b&gt; Micro Lead Frame package (MLF)</description>
</package>
<package name="2X03SMD">
</package>
<package name="2X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
<symbols>
<symbol name="TS2">
<pin name="P" direction="pas"/>
<pin name="S" direction="pas"/>
<pin name="S1" direction="pas"/>
<pin name="P1" direction="pas"/>
</symbol>
<symbol name="LED">
<description>LED</description>
<pin name="C" direction="pas"/>
<pin name="A" direction="pas"/>
</symbol>
<symbol name="R-US">
<pin name="2" direction="pas"/>
<pin name="1" direction="pas"/>
</symbol>
<symbol name="ATTINY24/44/84">
<pin name="GND" direction="pwr"/>
<pin name="VCC" direction="pwr"/>
<pin name="(PCINT7/ICP/OC0B/ADC7)PA7"/>
<pin name="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6"/>
<pin name="(PCINT5/OC1B/MISO/DO/ADC5)PA5"/>
<pin name="(PCINT4/T1/SCL/USCK/ADC4)PA4"/>
<pin name="(PCINT3/T0/ADC3)PA3"/>
<pin name="(PCINT2/AIN1/ADC2)PA2"/>
<pin name="(PCINT1/AIN0/ADC1)PA1"/>
<pin name="(PCINT0/AREF/ADC0)PA0"/>
<pin name="(PCINT11/RESET/DW)PB3"/>
<pin name="(PCINT10/INT0/OC0A/CKOUT)PB2"/>
<pin name="(PCINT9/XTAL2)PB1"/>
<pin name="(PCINT8/XTAL1/CLKI)PB0"/>
</symbol>
<symbol name="AVRISP">
<pin name="MISO" direction="pas" function="dot"/>
<pin name="VCC" direction="pas" function="dot"/>
<pin name="SCK" direction="pas" function="dot"/>
<pin name="MOSI" direction="pas" function="dot"/>
<pin name="RST" direction="pas" function="dot"/>
<pin name="GND" direction="pas" function="dot"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="6MM_SWITCH" prefix="S" uservalue="yes">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
<gates>
<gate name="2" symbol="TS2"/>
</gates>
<devices>
<device name="6MM_SWITCH" package="6MM_SWITCH">
<connects>
<connect gate="2" pin="P" pad="1"/>
<connect gate="2" pin="P1" pad="2"/>
<connect gate="2" pin="S" pad="3"/>
<connect gate="2" pin="S1" pad="4"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="LED">
<description>LED</description>
<gates>
<gate name="G$1" symbol="LED"/>
</gates>
<devices>
<device name="" package="LED1206">
<connects>
<connect gate="G$1" pin="A" pad="1"/>
<connect gate="G$1" pin="C" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="FAB1206" package="LED1206FAB">
<connects>
<connect gate="G$1" pin="A" pad="1"/>
<connect gate="G$1" pin="C" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="5MM" package="5MM">
<connects>
<connect gate="G$1" pin="A" pad="IN"/>
<connect gate="G$1" pin="C" pad="OUT"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="RES-US" prefix="R" uservalue="yes">
<description>&lt;b&gt;Resistor (US Symbol)&lt;/b&gt;
&lt;p&gt;
Variants with postfix FAB are widened to allow the routing of internal traces</description>
<gates>
<gate name="G$1" symbol="R-US"/>
</gates>
<devices>
<device name="1206" package="R1206">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206W" package="R1206W">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206FAB" package="R1206FAB">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="ATTINY44" prefix="IC">
<gates>
<gate name="1" symbol="ATTINY24/44/84"/>
</gates>
<devices>
<device name="-SSU" package="SOIC14">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="13"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="12"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="5"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="4"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="11"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="10"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="9"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="8"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="7"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="6"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="2"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="3"/>
<connect gate="1" pin="GND" pad="14"/>
<connect gate="1" pin="VCC" pad="1"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="-PU" package="DIL14">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="13"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="12"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="5"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="4"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="11"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="10"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="9"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="8"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="7"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="6"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="2"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="3"/>
<connect gate="1" pin="GND" pad="14"/>
<connect gate="1" pin="VCC" pad="1"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="-MU" package="QFN/MLF20">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="5"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="4"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="14"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="13"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="3"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="2"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="1"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="20"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="16"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="15"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="11"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="12"/>
<connect gate="1" pin="GND" pad="8"/>
<connect gate="1" pin="VCC" pad="9"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="AVRISP">
<gates>
<gate name="G$1" symbol="AVRISP"/>
</gates>
<devices>
<device name="SMD" package="2X03SMD">
<connects>
<connect gate="G$1" pin="GND" pad="6"/>
<connect gate="G$1" pin="MISO" pad="1"/>
<connect gate="G$1" pin="MOSI" pad="4"/>
<connect gate="G$1" pin="RST" pad="5"/>
<connect gate="G$1" pin="SCK" pad="3"/>
<connect gate="G$1" pin="VCC" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="" package="2X03">
<connects>
<connect gate="G$1" pin="GND" pad="6"/>
<connect gate="G$1" pin="MISO" pad="1"/>
<connect gate="G$1" pin="MOSI" pad="4"/>
<connect gate="G$1" pin="RST" pad="5"/>
<connect gate="G$1" pin="SCK" pad="3"/>
<connect gate="G$1" pin="VCC" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="_hhn_78xx_79xx_NCV78xx_d2pak_dpak">
<description>&lt;h2&gt;78xx 79xx NCV78xx SMD (D2PAK, DPAK)&lt;/h2&gt;
&lt;p&gt;&lt;b&gt;Linear Voltage Regulators&lt;/b&gt;&lt;/p&gt;
Source: ONSEMI (http://onsemi.com)&lt;br /&gt;
&lt;hr&gt;
&lt;p&gt;&lt;i&gt;Author: Dipl.-Ing. FH Rainer Bayer&lt;br /&gt;
HHN Hochschule Heilbronn, rainer.bayer@hs-heilbronn.de&lt;br /&gt;
Ingenieurbüro ing-rb, mail@ing-rb.de&lt;/p&gt;</description>
<packages>
<package name="DPAK-3">
<description>&lt;b&gt;DPAK-3&lt;/b&gt; (acc. to. ON Semiconductor specs)</description>
</package>
<package name="D2PAK-3">
<description>&lt;b&gt;D2PAK-3&lt;/b&gt; (acc. to. ON Semiconductor specs)</description>
</package>
</packages>
<symbols>
<symbol name="VREG_3">
<pin name="VIN" direction="pwr"/>
<pin name="GND" direction="pwr"/>
<pin name="VOUT" direction="sup"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="MC78*" prefix="U">
<description>&lt;h2&gt;78xx SMD (D2PAK, DPAK)&lt;/h2&gt;
&lt;p&gt;&lt;b&gt;(MC)78xx..DT&amp;nbsp; &amp;nbsp;(DPAK-3; &lt;/b&gt; &amp;nbsp; Rth,JA = 92 K/W&lt;b&gt;)&lt;br /&gt;
(MC)78xx..D2T (D2PAK-3; &lt;/b&gt;Rth,JA = 45 K/W @ 10x10mm copper area&lt;b&gt;)&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;Linear Voltage Regulators, Positive, 1 A (ON Semiconductor)&lt;p&gt;
&lt;p&gt;Package dimenisions and soldering footprints acc. to ONSEMI specs.&lt;br /&gt;
Source: http://onsemi.com&lt;br /&gt;
Datasheet document#:  MC7800/D&lt;/p&gt;
&lt;hr&gt;
&lt;p&gt;Technologies:&lt;br /&gt;
78&lt;b&gt;xx&lt;/b&gt;yD(2)Tz: &amp;nbsp; &lt;b&gt;xx&lt;/b&gt; = Output Voltage (V)&lt;br /&gt;
&lt;b&gt;y, z&lt;/b&gt;: &amp;nbsp; additional suffixes see manufacturer's datasheet&lt;/p&gt;
&lt;hr&gt;
&lt;p&gt;&lt;i&gt;Author: Dipl.-Ing. FH Rainer Bayer&lt;br /&gt;
HHN Hochschule Heilbronn, rainer.bayer@hs-heilbronn.de&lt;br /&gt;
Ingenieurbüro ing-rb, mail@ing-rb.de&lt;/p&gt;</description>
<gates>
<gate name="G$1" symbol="VREG_3"/>
</gates>
<devices>
<device name="DT" package="DPAK-3">
<connects>
<connect gate="G$1" pin="GND" pad="4"/>
<connect gate="G$1" pin="VIN" pad="1"/>
<connect gate="G$1" pin="VOUT" pad="3"/>
</connects>
<technologies>
<technology name="05"/>
<technology name="05B"/>
<technology name="05C"/>
<technology name="08"/>
<technology name="08B"/>
<technology name="08C"/>
<technology name="12"/>
<technology name="12B"/>
<technology name="12C"/>
<technology name="15"/>
<technology name="15B"/>
<technology name="15C"/>
<technology name="GENERIC"/>
</technologies>
</device>
<device name="D2T" package="D2PAK-3">
<connects>
<connect gate="G$1" pin="GND" pad="4"/>
<connect gate="G$1" pin="VIN" pad="1"/>
<connect gate="G$1" pin="VOUT" pad="3"/>
</connects>
<technologies>
<technology name="05"/>
<technology name="05AB"/>
<technology name="05AC"/>
<technology name="05B"/>
<technology name="05C"/>
<technology name="06"/>
<technology name="06B"/>
<technology name="08"/>
<technology name="08AB"/>
<technology name="08B"/>
<technology name="08C"/>
<technology name="09"/>
<technology name="09C"/>
<technology name="12"/>
<technology name="12AB"/>
<technology name="12AC"/>
<technology name="12B"/>
<technology name="12C"/>
<technology name="15"/>
<technology name="15AB"/>
<technology name="15AC"/>
<technology name="15B"/>
<technology name="15C"/>
<technology name="18"/>
<technology name="18C"/>
<technology name="24"/>
<technology name="24B"/>
<technology name="24C"/>
<technology name="GENERIC"/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="SparkFun-Batteries">
<description>&lt;h3&gt;SparkFun Batteries&lt;/h3&gt;
This library contains battery clips, connectors, and appropriately sized silk outlines for LiPo batteries. 
&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="BATTERY-AAA">
<description>&lt;h3&gt;AAA Battery Clips&lt;/h3&gt;
&lt;p&gt;PCB mount clips properly spaced to hold a AAA battery.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/M60-2p9.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTERY-AA">
<description>&lt;h3&gt;AA Battery Clips&lt;/h3&gt;
&lt;p&gt;PCB mount clips properly spaced to hold a AA battery&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/M60-2p9.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_12MM_PTH">
<description>&lt;h3&gt;12mm Coin Cell Battery (CR1225) Holder - PTH&lt;/h3&gt;
&lt;p&gt;This is a through hole 12mm coin cell battery holder. Holds battery in place with friction. Metal housing is +, PCB pad underneath is -.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://cdn.sparkfun.com/datasheets/Prototyping/KEY-3001.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_20MM">
<description>&lt;h3&gt;20mm Coin Cell Battery (CR2032) Holder - SMD (Single Pad)&lt;/h3&gt;
&lt;p&gt;Part number: CR2032-THM&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCOM_20MM_PTH">
<description>&lt;h3&gt;20mm (CR2032) Coin Cell Battery Holder - PTH&lt;/h3&gt;
&lt;p&gt;Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.sparkfun.com/datasheets/Prototyping/CoinCellHolder-20mm.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_24.5MM_PTH">
<description>&lt;h3&gt;24.5mm Coin Cell Battery (CR2450) Holder - PTH&lt;/h3&gt;
&lt;p&gt;Through hole 24.5 mm coin cell holder. Holds battery in place with friction. Metal housing is +, PCB pad underneath is -.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.sparkfun.com/datasheets/Batteries/Coin_Cell_Holder_245mm-3009.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_12MM">
<description>&lt;h3&gt;12mm Coin Cell (CR1225) Battery Holder - SMD&lt;/h3&gt;
&lt;p&gt;Holds battery in place with friction. The metal housing connects to the positive side of the battery and the PCB pad underneath is connected to the negative side.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://cdn.sparkfun.com/datasheets/Prototyping/KEY-3000.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_20MM_4LEGS">
<description>&lt;h3&gt;20mm Coin Cell Battery (CR2032) Holder - SMD (Dual Pad)&lt;/h3&gt;
&lt;p&gt;This holder fits 20mm Lithium coin cell batteries and holds the battery in place with friction. The metal housing connects to the positive (+) side of the battery and the PCB pad underneath is connected to the negative (-) side.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/BAT-BLH-001.jpg"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTERY-AA-KIT">
<description>&lt;h3&gt;AA Battery Clips (KIT Variant)&lt;/h3&gt;
&lt;p&gt;PCB mount clips properly spaced to hold a AA battery&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Warning:&lt;/b&gt; This is the KIT version of this package. This package has a smaller diameter top stop mask, which doesn't cover the diameter of the pad. This means only the bottom side of the pads' copper will be exposed. You'll only be able to solder to the bottom side.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/M60-2p9.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_9V">
<description>&lt;h3&gt;PCMOUNT 9V Battery Holder&lt;/h3&gt;
&lt;p&gt;&lt;a href="http://www.memoryprotectiondevices.com/datasheets/BC9VPC-datasheet.pdf"&gt;Datasheet&lt;/a&gt; (MPD BC9VPC)&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON_20MM_4LEGS_OVERPASTE">
<description>&lt;h3&gt;20mm Coin Cell Battery (CR2032) Holder - SMD (Dual Pad) (Overpaste on pads)&lt;/h3&gt;
&lt;p&gt;This holder fits 20mm Lithium coin cell batteries and holds the battery in place with friction. The metal housing connects to the positive (+) side of the battery and the PCB pad underneath is connected to the negative (-) side.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/BAT-BLH-001.jpg"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTERY-AAA-KIT">
<description>&lt;h3&gt;AAA Battery Clips (KIT Variant)&lt;/h3&gt;
&lt;p&gt;PCB mount clips properly spaced to hold a AAA battery.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Warning:&lt;/b&gt; This is the KIT version of this package. This package has a smaller diameter top stop mask, which doesn't cover the diameter of the pad. This means only the bottom side of the pads' copper will be exposed. You'll only be able to solder to the bottom side.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://cdn.sparkfun.com/datasheets/Prototyping/M60-2p9.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTERY_18650-HOLDER">
<description>&lt;h3&gt;18650 Lithium Ion Cell Battery Holders&lt;/h3&gt;
&lt;p&gt;PCB mount clips properly spaced to hold a 18650 Lithium Ion Cell battery.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://cdn.sparkfun.com/datasheets/Prototyping/54.PDF"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCON-6.8MM">
<description>Part#: MS621FE-FL11E</description>
</package>
<package name="BATTERY-AA-HOLDER-KIT">
<description>&lt;h3&gt;AA Battery Holder&lt;/h3&gt;
&lt;p&gt;PTH Single-cell AA battery holder&lt;/p&gt;
&lt;p&gt;&lt;a href="https://www.digikey.com/product-detail/en/keystone-electronics/2460/36-2460-ND/280629"&gt;Product Link&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
<package name="BATTCOM_20MM_PTH_KIT">
<description>&lt;h3&gt;20mm (CR2032) Coin Cell Battery Holder - PTH&lt;/h3&gt;
&lt;p&gt;Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.sparkfun.com/datasheets/Prototyping/CoinCellHolder-20mm.pdf"&gt;Datasheet&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;Devices Using&lt;/h4&gt;
&lt;ul&gt;&lt;li&gt;BATTERY&lt;/li&gt;&lt;/ul&gt;</description>
</package>
</packages>
<symbols>
<symbol name="BATTERY">
<description>&lt;h3&gt;Battery (Single-Cell)&lt;/h3&gt;</description>
<pin name="-" direction="pwr"/>
<pin name="+" direction="pwr"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="BATTERY" prefix="BT" uservalue="yes">
<description>&lt;h3&gt;Battery - Single Cell&lt;/h3&gt;
&lt;p&gt;A variety of battery chemistries, sizes, and footprints.&lt;/p&gt;
&lt;p&gt;Device List:
&lt;ul&gt;
&lt;li&gt;&lt;b&gt;20MM_PTH - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/783"&gt;Coin Cell Battery Holder - 20mm (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;20MM_PTH_KIT- &lt;/b&gt; &lt;a href="http://www.sparkfun.com/products/783"&gt;Coin Cell battery Holder - 20 mm (PTH) &lt;/a&gt;kit version with special mask&lt;/li&gt;
&lt;li&gt;&lt;b&gt;6.8MM_PTH - &lt;/b&gt; &lt;a href="https://www.digikey.com/product-detail/en/seiko-instruments/MS621FE-FL11E/728-1057-ND/1889208?WT.srch=1&amp;gclid=CNOQ5a6LzdQCFZS2wAodXCkE0g"&gt;Coin Cell Battery Holder - 6.8MM(SMD)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;12MM_SMD - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/10592"&gt;Coin Cell Battery Holder - 12mm (SMD)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;12MM_PTH - &lt;/b&gt;&lt;a href="https://www.sparkfun.com/products/7948"&gt;Coin Cell Battery Holder - 12mm (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;20MM_SMD - &lt;/b&gt; 20mm Coin Cell Battery Holder (SMD) (2 legs)&lt;/li&gt;
&lt;ul&gt;&lt;li&gt;Used on the &lt;a href="https://www.sparkfun.com/products/11734"&gt;Big Time Watch Kit&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;li&gt;&lt;b&gt;20MM_SMD_4LEGS - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/11892"&gt;Coin Cell Battery Holder - 20mm (SMD)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;20MM_SMD_4LEGS_OVERPASTE - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/11892"&gt;Coin Cell Battery Holder - 20mm (SMD)&lt;/a&gt; (Over-paste on the legs)&lt;/li&gt;
&lt;li&gt;&lt;b&gt;24.5MM_PTH - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/8863"&gt;Coin Cell Battery Holder - 24.5mm (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;9V - &lt;/b&gt; 9V Battery Holder - PC Mount &lt;/li&gt;
&lt;ul&gt;&lt;li&gt;Used on the &lt;a href="https://www.sparkfun.com/products/11177"&gt;SparkFun SparkPunk Sound Kit &lt;/a&gt; and &lt;a href="https://www.sparkfun.com/products/12707"&gt;SparkFun SparkPunk Sequencer Kit &lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;li&gt;&lt;b&gt;18650 - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/13113"&gt;Battery Holder - 18650 (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;AA - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/7949"&gt;Battery Holder - 1xAA (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;AAA - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/12718"&gt;Battery Holder - 1xAAA (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;b&gt;AA_KIT - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/7949"&gt;Battery Holder - 1xAA (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;ul&gt;&lt;li&gt;Special kit package - pads only have exposed copper on one side of the board.&lt;/li&gt;&lt;/ul&gt;
&lt;li&gt;&lt;b&gt;AAA_KIT - &lt;/b&gt; &lt;a href="https://www.sparkfun.com/products/12718"&gt;Battery Holder - 1xAAA (PTH)&lt;/a&gt;&lt;/li&gt;
&lt;ul&gt;&lt;li&gt;Special kit package - pads only have exposed copper on one side of the board.&lt;/li&gt;&lt;/ul&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
<gates>
<gate name="G$1" symbol="BATTERY"/>
</gates>
<devices>
<device name="-AAA" package="BATTERY-AAA">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND@1"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08571"/>
<attribute name="SF_SKU" value="PRT-12718"/>
</technology>
</technologies>
</device>
<device name="-AA" package="BATTERY-AA">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND@1"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08316"/>
<attribute name="SF_SKU" value="PRT-07949"/>
</technology>
</technologies>
</device>
<device name="-12MM_PTH" package="BATTCON_12MM_PTH">
<connects>
<connect gate="G$1" pin="+" pad="VCC@1"/>
<connect gate="G$1" pin="-" pad="GND"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08315"/>
<attribute name="SF_SKU" value="PRT-07948"/>
</technology>
</technologies>
</device>
<device name="-20MM_SMD" package="BATTCON_20MM">
<connects>
<connect gate="G$1" pin="+" pad="1"/>
<connect gate="G$1" pin="-" pad="2"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-11519"/>
</technology>
</technologies>
</device>
<device name="-20MM_PTH" package="BATTCOM_20MM_PTH">
<connects>
<connect gate="G$1" pin="+" pad="1"/>
<connect gate="G$1" pin="-" pad="2"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-09031"/>
<attribute name="SF_SKU" value="PRT-00783"/>
</technology>
</technologies>
</device>
<device name="-24.5MM_PTH" package="BATTCON_24.5MM_PTH">
<connects>
<connect gate="G$1" pin="+" pad="3"/>
<connect gate="G$1" pin="-" pad="2"/>
</connects>
<technologies>
<technology name="">
<attribute name="SF_SKU" value="PRT-08863"/>
</technology>
</technologies>
</device>
<device name="-12MM_SMD" package="BATTCON_12MM">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08044"/>
<attribute name="SF_SKU" value="PRT-10592"/>
</technology>
</technologies>
</device>
<device name="-20MM_SMD_4LEGS" package="BATTCON_20MM_4LEGS">
<connects>
<connect gate="G$1" pin="+" pad="POSITIVE@1 POSITIVE@2 POSITIVE@3 POSITIVE@4"/>
<connect gate="G$1" pin="-" pad="NEGATIVE"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-10373"/>
<attribute name="SF_SKU" value="PRT-11892"/>
</technology>
</technologies>
</device>
<device name="-AA_KIT" package="BATTERY-AA-KIT">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND@1"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08316"/>
<attribute name="SF_SKU" value="PRT-07949"/>
</technology>
</technologies>
</device>
<device name="-9V" package="BATTCON_9V">
<connects>
<connect gate="G$1" pin="+" pad="+"/>
<connect gate="G$1" pin="-" pad="-"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-10855"/>
</technology>
</technologies>
</device>
<device name="-20MM_SMD_4LEGS_OVERPASTE" package="BATTCON_20MM_4LEGS_OVERPASTE">
<connects>
<connect gate="G$1" pin="+" pad="1"/>
<connect gate="G$1" pin="-" pad="2"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="PRT-11892 "/>
<attribute name="SF_SKU" value="BATT-10373"/>
</technology>
</technologies>
</device>
<device name="-AAA_KIT" package="BATTERY-AAA-KIT">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND@1"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-08571"/>
<attribute name="SF_SKU" value="PRT-12718"/>
</technology>
</technologies>
</device>
<device name="-18650" package="BATTERY_18650-HOLDER">
<connects>
<connect gate="G$1" pin="+" pad="PWR@1"/>
<connect gate="G$1" pin="-" pad="GND@1"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-12327"/>
<attribute name="SF_SKU" value="PRT-13113"/>
</technology>
</technologies>
</device>
<device name="-6.8MM_SMD" package="BATTCON-6.8MM">
<connects>
<connect gate="G$1" pin="+" pad="+"/>
<connect gate="G$1" pin="-" pad="-"/>
</connects>
<technologies>
<technology name="">
<attribute name="PROD_ID" value="BATT-13734"/>
<attribute name="VALUE" value="6.8MM_COIN_CELL"/>
</technology>
</technologies>
</device>
<device name="-AA-HOLDER_KIT" package="BATTERY-AA-HOLDER-KIT">
<connects>
<connect gate="G$1" pin="+" pad="P"/>
<connect gate="G$1" pin="-" pad="N"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="-20MM_PTH_KIT" package="BATTCOM_20MM_PTH_KIT">
<connects>
<connect gate="G$1" pin="+" pad="1"/>
<connect gate="G$1" pin="-" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="SparkFun-PowerSymbols">
<description>&lt;h3&gt;SparkFun Power Symbols&lt;/h3&gt;
This library contains power, ground, and voltage-supply symbols.
&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>
</packages>
<symbols>
<symbol name="VCC">
<description>&lt;h3&gt;VCC Voltage Supply&lt;/h3&gt;</description>
<pin name="VCC" direction="sup"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="VCC" prefix="SUPPLY">
<description>&lt;h3&gt;VCC Voltage Supply&lt;/h3&gt;
&lt;p&gt;Positive voltage supply (traditionally for a BJT device, C=collector).&lt;/p&gt;</description>
<gates>
<gate name="G$1" symbol="VCC"/>
</gates>
<devices>
<device name="">
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<parts>
<part name="S1" library="fab" deviceset="6MM_SWITCH" device="6MM_SWITCH"/>
<part name="U$2" library="fab" deviceset="LED" device="FAB1206"/>
<part name="U$3" library="fab" deviceset="LED" device="FAB1206"/>
<part name="U$4" library="fab" deviceset="LED" device="FAB1206"/>
<part name="R1" library="fab" deviceset="RES-US" device="1206" value="470"/>
<part name="R2" library="fab" deviceset="RES-US" device="1206" value="470"/>
<part name="R3" library="fab" deviceset="RES-US" device="1206" value="470"/>
<part name="IC1" library="fab" deviceset="ATTINY44" device="-SSU"/>
<part name="U1" library="_hhn_78xx_79xx_NCV78xx_d2pak_dpak" deviceset="MC78*" device="DT" technology="GENERIC"/>
<part name="BT1" library="SparkFun-Batteries" deviceset="BATTERY" device="-6.8MM_SMD" value="6.8MM_COIN_CELL"/>
<part name="U$1" library="fab" deviceset="AVRISP" device="SMD"/>
<part name="5V" library="SparkFun-PowerSymbols" deviceset="VCC" device=""/>
<part name="R4" library="fab" deviceset="RES-US" device="1206FAB" value="10k"/>
<part name="R5" library="fab" deviceset="RES-US" device="1206FAB" value="0"/>
</parts>
<sheets>
<sheet>
<plain>
</plain>
<busses>
</busses>
<nets>
<net name="N$1">
<segment>
<pinref part="R1" gate="G$1" pin="1"/>
<pinref part="IC1" gate="1" pin="(PCINT3/T0/ADC3)PA3"/>
</segment>
</net>
<net name="N$2">
<segment>
<pinref part="R1" gate="G$1" pin="2"/>
<pinref part="U$2" gate="G$1" pin="A"/>
</segment>
</net>
<net name="N$4">
<segment>
<pinref part="R2" gate="G$1" pin="1"/>
<pinref part="IC1" gate="1" pin="(PCINT2/AIN1/ADC2)PA2"/>
</segment>
</net>
<net name="N$5">
<segment>
<pinref part="U$3" gate="G$1" pin="A"/>
<pinref part="R2" gate="G$1" pin="2"/>
</segment>
</net>
<net name="N$7">
<segment>
<pinref part="R3" gate="G$1" pin="1"/>
<pinref part="IC1" gate="1" pin="(PCINT1/AIN0/ADC1)PA1"/>
</segment>
</net>
<net name="N$8">
<segment>
<pinref part="R3" gate="G$1" pin="2"/>
<pinref part="U$4" gate="G$1" pin="A"/>
</segment>
</net>
<net name="GND">
<segment>
<pinref part="IC1" gate="1" pin="GND"/>
</segment>
<segment>
<pinref part="U1" gate="G$1" pin="GND"/>
</segment>
<segment>
<pinref part="U$2" gate="G$1" pin="C"/>
</segment>
<segment>
<pinref part="U$3" gate="G$1" pin="C"/>
</segment>
<segment>
<pinref part="U$4" gate="G$1" pin="C"/>
</segment>
<segment>
<pinref part="BT1" gate="G$1" pin="-"/>
</segment>
<segment>
<pinref part="U$1" gate="G$1" pin="GND"/>
</segment>
<segment>
<pinref part="S1" gate="2" pin="S1"/>
</segment>
</net>
<net name="9V">
<segment>
<pinref part="U1" gate="G$1" pin="VIN"/>
</segment>
<segment>
<pinref part="BT1" gate="G$1" pin="+"/>
</segment>
</net>
<net name="MISO">
<segment>
<pinref part="U$1" gate="G$1" pin="MISO"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5"/>
</segment>
</net>
<net name="SCK">
<segment>
<pinref part="U$1" gate="G$1" pin="SCK"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4"/>
</segment>
</net>
<net name="RST">
<segment>
<pinref part="U$1" gate="G$1" pin="RST"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="(PCINT11/RESET/DW)PB3"/>
</segment>
</net>
<net name="MOSI">
<segment>
<pinref part="U$1" gate="G$1" pin="MOSI"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6"/>
</segment>
</net>
<net name="VCC">
<segment>
<pinref part="IC1" gate="1" pin="VCC"/>
</segment>
<segment>
<pinref part="U1" gate="G$1" pin="VOUT"/>
</segment>
<segment>
<pinref part="U$1" gate="G$1" pin="VCC"/>
</segment>
<segment>
<pinref part="R4" gate="G$1" pin="2"/>
<pinref part="5V" gate="G$1" pin="VCC"/>
</segment>
<segment>
<pinref part="R5" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="R5" gate="G$1" pin="1"/>
</segment>
</net>
<net name="BUTTON">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT9/XTAL2)PB1"/>
</segment>
<segment>
<pinref part="S1" gate="2" pin="P"/>
<pinref part="R4" gate="G$1" pin="1"/>
</segment>
</net>
</nets>
</sheet>
</sheets>
</schematic>
</drawing>
</eagle>
