<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.4">
<drawing>
<board>
<plain>
<text>SIMHOLDER</text>
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<text>SW_uart</text>
<text>GPIO</text>
<text>GND</text>
<text>R</text>
<text>ADC</text>
<text>PWM2</text>
<text>PWM1</text>
<text>RI</text>
<text>DCD</text>
<text>DSR</text>
<text>CTS</text>
<text>GND</text>
<text>VCC</text>
<text>LDTR</text>
<text>LRTS</text>
<text>HW_uart</text>
<text>AREF</text>
<text>GND</text>
<text>3</text>
<text>2</text>
<text>1</text>
<text>0</text>
<text>1</text>
<text>1</text>
<text>1</text>
<text>1</text>
<text>9</text>
<text>8</text>
<text>7</text>
<text>6</text>
<text>5</text>
<text>4</text>
<text>3</text>
<text>2</text>
<text>1</text>
<text>0</text>
<text>RST</text>
<text>3V3</text>
<text>5V</text>
<text>GND</text>
<text>GND</text>
<text>VIN</text>
<text>0</text>
<text>1</text>
<text>2</text>
<text>3</text>
<text>4</text>
<text>5</text>
<text>ANALOG</text>
<text>GPRS Shield </text>
<text>v3.0 04/29/2014</text>
<text>by Seeed Studio</text>
<text>www.seeedstudio.com</text>
<text>FW_Update</text>
<text>IOREF</text>
<text>NC</text>
<text>SDA</text>
<text>SCL</text>
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<text>L</text>
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<libraries>
<library name="ICs_v54">
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<package name="SIM900">
</package>
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</library>
<library name="Discrete">
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<package name="SOT23">
<description>&lt;b&gt;SOT23&lt;/b&gt;</description>
</package>
<package name="D0603">
<description>&lt;b&gt;0603&lt;b&gt;&lt;p&gt;</description>
</package>
<package name="C0805">
<description>&lt;b&gt;0805&lt;b&gt;&lt;p&gt;</description>
</package>
<package name="1206-8-3.3X2.4">
<description>&lt;b&gt;BOURNS&lt;/b&gt; Chip Resistor Array&lt;p&gt;
Source: RS Component / BUORNS</description>
</package>
<package name="2P-SMD-3.3X2">
<description>&lt;b&gt;Solder jumper&lt;/b&gt;</description>
</package>
<package name="C0603">
<description>&lt;b&gt;0603&lt;b&gt;&lt;p&gt;</description>
</package>
<package name="R0603">
</package>
<package name="SOD123-2.7X1.6">
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<package name="4P-SMD-7X3.5X3.5H">
</package>
<package name="TP_4545">
</package>
<package name="ELECTRO-SMD-D-5.6MM">
<description>&lt;b&gt;Aluminium Electrolytic Capacitor Package D&lt;/b&gt;</description>
</package>
<package name="AVX-D">
</package>
<package name="L0630">
<description>06 for width 6.0mm ,30 for height 3.0mm</description>
</package>
<package name="SMB">
</package>
<package name="L0603">
</package>
<package name="ROUND-MARK-1.0">
</package>
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</library>
<library name="CONNECTER">
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<package name="CK_1X6">
</package>
<package name="CK_2X3">
</package>
</packages>
</library>
<library name="SparkFun2">
<packages>
<package name="SIMHOLDER3">
</package>
</packages>
</library>
<library name="logo">
<packages>
<package name="LOGO_SILK">
</package>
<package name="OSHW_FILLX200_NOTEXT">
</package>
</packages>
</library>
<library name="Connector">
<packages>
<package name="6P-2.54-65/35MIL">
</package>
<package name="2X4P-2.54">
</package>
<package name="4P-U-FL">
</package>
<package name="SMD-CR1220-2">
<description>CR1220 and  CR1225  use this battery holder.</description>
</package>
</packages>
</library>
<library name="template">
<packages>
<package name="SOP8">
<description>&lt;b&gt;SMALL OUTLINE PACKAGE&lt;/b&gt;</description>
</package>
<package name="SOD123-2.7X1.6">
</package>
<package name="8P-SMD-3.5">
</package>
</packages>
</library>
<library name="moudle">
<packages>
<package name="ARDUINO-38P-500519002">
</package>
</packages>
</library>
<library name="mySeeed">
<packages>
<package name="JP">
</package>
</packages>
</library>
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<attribute name="VALUE"/>
</element>
<element name="R1" library="Discrete" package="R0603" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SIMHOLDER" library="SparkFun2" package="SIMHOLDER3" value="SIMHOLDER3"/>
<element name="J7" library="CONNECTER" package="CK_2X3" value="CK_2X3_DD">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J13" library="CONNECTER" package="CK_1X6" value="">
<attribute name="VALUE"/>
</element>
<element name="R12" library="Discrete" package="R0603" value="68R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q1" library="Discrete" package="SOT23" value="9013">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R3" library="Discrete" package="R0603" value="4.7k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R2" library="Discrete" package="R0603" value="47k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="JP" library="Discrete" package="2P-SMD-3.3X2" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C16" library="Discrete" package="C0603" value="39pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="Q5" library="Discrete" package="SOT23" value="SI2305DS">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R22" library="Discrete" package="R0603" value="100R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R23" library="Discrete" package="R0603" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R24" library="Discrete" package="R0603" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C21" library="Discrete" package="C0603" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C22" library="Discrete" package="C0805" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q6" library="Discrete" package="SOT23" value="BSN20">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="Q7" library="Discrete" package="SOT23" value="BSN20">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="D4" library="Discrete" package="SOD123-2.7X1.6" value="MBR0520">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="POWER_KEY" library="Discrete" package="4P-SMD-7X3.5X3.5H" value="BUTTON-4P-REINFORCE'TS-118E'">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J3" library="Connector" package="6P-2.54-65/35MIL" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="CLK" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="DATA" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="D/C" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="CS" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="J4" library="Connector" package="2X4P-2.54" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="T_5V" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="T_4.1V" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="U1" library="template" package="SOP8" value="TD1410">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R4" library="Discrete" package="R0603" value="100k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="Discrete" package="R0603" value="10k 1%">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="Discrete" package="R0603" value="24k 1%">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="Discrete" package="C0603" value="DNP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C2" library="Discrete" package="ELECTRO-SMD-D-5.6MM" value="16V 220uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="Discrete" package="AVX-D" value="470uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="Discrete" package="C0805" value="10uF ">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="Discrete" package="C0603" value="100nF ">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="L2" library="Discrete" package="L0630" value="10uH">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="Discrete" package="SMB" value="SS54">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C23" library="Discrete" package="C0603" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="T_EXT" library="Discrete" package="TP_4545" value="">
<attribute name="PARTNO" value="DNP"/>
<attribute name="NAME"/>
</element>
<element name="C24" library="Discrete" package="C0603" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="D5" library="template" package="SOD123-2.7X1.6" value="CESD5V0D1">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D6" library="template" package="SOD123-2.7X1.6" value="CESD5V0D1">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D7" library="template" package="SOD123-2.7X1.6" value="CESD5V0D1">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="L1" library="Discrete" package="L0603" value="120R 500mA">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="L3" library="Discrete" package="L0603" value="120R 500mA">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="L4" library="Discrete" package="L0603" value="120R 500mA">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="Discrete" package="C0603" value="100nF ">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="D8" library="Discrete" package="SMB" value="SS54">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="ANT1" library="Connector" package="4P-U-FL" value="">
<attribute name="NAME"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="Connector" package="SMD-CR1220-2" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="P1" library="mySeeed" package="JP" value="JP">
<attribute name="NAME"/>
</element>
<element name="R11" library="Discrete" package="R0603" value="DNP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="U$26" library="logo" package="LOGO_SILK" value=""/>
<element name="U$28" library="logo" package="OSHW_FILLX200_NOTEXT" value=""/>
<element name="P2" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
<element name="P3" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
<element name="D2" library="Discrete" package="SMB" value="SS54">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="U4" library="moudle" package="ARDUINO-38P-500519002" value=""/>
<element name="J6" library="template" package="8P-SMD-3.5" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="P4" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
<element name="P5" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
<element name="P6" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
<element name="P7" library="Discrete" package="ROUND-MARK-1.0" value="">
<attribute name="PARTNO" value="DNP"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="U2" pad="65"/>
<contactref element="U2" pad="64"/>
<contactref element="U2" pad="63"/>
<contactref element="U2" pad="62"/>
<contactref element="U2" pad="61"/>
<contactref element="U2" pad="59"/>
<contactref element="U2" pad="58"/>
<contactref element="U2" pad="54"/>
<contactref element="U2" pad="53"/>
<contactref element="U2" pad="46"/>
<contactref element="U2" pad="45"/>
<contactref element="U2" pad="39"/>
<contactref element="U2" pad="29"/>
<contactref element="U2" pad="18"/>
<contactref element="U2" pad="17"/>
<contactref element="C20" pad="2"/>
<contactref element="Q3" pad="2"/>
<contactref element="R15" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="C17" pad="2"/>
<contactref element="C13" pad="2"/>
<contactref element="C15" pad="1"/>
<contactref element="C19" pad="1"/>
<contactref element="Q4" pad="2"/>
<contactref element="R16" pad="2"/>
<contactref element="C10" pad="1"/>
<contactref element="C11" pad="1"/>
<contactref element="C12" pad="2"/>
<contactref element="SIMHOLDER" pad="6"/>
<contactref element="J13" pad="4"/>
<contactref element="U2" pad="20"/>
<contactref element="Q1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="C16" pad="1"/>
<contactref element="C21" pad="1"/>
<contactref element="D4" pad="1"/>
<contactref element="R24" pad="2"/>
<contactref element="R23" pad="2"/>
<contactref element="POWER_KEY" pad="S1"/>
<contactref element="POWER_KEY" pad="S2"/>
<contactref element="J4" pad="8"/>
<contactref element="R5" pad="2"/>
<contactref element="U1" pad="4"/>
<contactref element="C2" pad="-"/>
<contactref element="C4" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="R1" pad="1"/>
<contactref element="C3" pad="-"/>
<contactref element="C23" pad="1"/>
<contactref element="C24" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="D8" pad="+"/>
<contactref element="ANT1" pad="GND1"/>
<contactref element="ANT1" pad="GND2"/>
<contactref element="ANT1" pad="GND3"/>
<contactref element="D7" pad="1"/>
<contactref element="D5" pad="1"/>
<contactref element="D6" pad="1"/>
<contactref element="J1" pad="-"/>
<contactref element="P1" pad="2"/>
<contactref element="U4" pad="26"/>
<contactref element="U4" pad="27"/>
<contactref element="U4" pad="15"/>
<contactref element="J6" pad="2"/>
</signal>
<signal name="VBAT">
<contactref element="U2" pad="55"/>
<contactref element="U2" pad="56"/>
<contactref element="U2" pad="57"/>
<contactref element="T_4.1V" pad="T"/>
<contactref element="PWR" pad="+"/>
<contactref element="R6" pad="2"/>
<contactref element="C1" pad="1"/>
<contactref element="C3" pad="+"/>
<contactref element="C4" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="L2" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="D2/STA" pad="+"/>
<contactref element="D3/NET" pad="+"/>
</signal>
<signal name="VIN">
<contactref element="U1" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="C2" pad="+"/>
<contactref element="D1" pad="-"/>
<contactref element="T_EXT" pad="T"/>
<contactref element="C24" pad="2"/>
<contactref element="D2" pad="-"/>
</signal>
<signal name="N$4">
<contactref element="R19" pad="2"/>
<contactref element="SIMHOLDER" pad="4"/>
</signal>
<signal name="N$5">
<contactref element="R18" pad="1"/>
<contactref element="SIMHOLDER" pad="3"/>
</signal>
<signal name="N$6">
<contactref element="R17" pad="1"/>
<contactref element="SIMHOLDER" pad="2"/>
</signal>
<signal name="SIM_DATA">
<contactref element="U2" pad="31"/>
<contactref element="R19" pad="1"/>
</signal>
<signal name="SIM_CLK">
<contactref element="U2" pad="32"/>
<contactref element="R18" pad="2"/>
</signal>
<signal name="SIM_RST">
<contactref element="U2" pad="33"/>
<contactref element="R17" pad="2"/>
</signal>
<signal name="SIM_VDD">
<contactref element="U2" pad="30"/>
<contactref element="C20" pad="1"/>
<contactref element="SIMHOLDER" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="Q3" pad="3"/>
<contactref element="R20" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="D3/NET" pad="-"/>
<contactref element="R20" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="Q3" pad="1"/>
<contactref element="R13" pad="2"/>
<contactref element="R15" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="R13" pad="1"/>
<contactref element="U2" pad="52"/>
</signal>
<signal name="VRTC">
<contactref element="U2" pad="26"/>
<contactref element="C6" pad="2"/>
<contactref element="J1" pad="+"/>
</signal>
<signal name="LRXD">
<contactref element="U2" pad="10"/>
<contactref element="R8" pad="3"/>
<contactref element="Q6" pad="2"/>
</signal>
<signal name="LTXD">
<contactref element="U2" pad="9"/>
<contactref element="R8" pad="4"/>
<contactref element="Q7" pad="2"/>
</signal>
<signal name="HRXD">
<contactref element="R8" pad="1"/>
<contactref element="J7" pad="2"/>
<contactref element="Q6" pad="3"/>
</signal>
<signal name="HTXD">
<contactref element="R8" pad="2"/>
<contactref element="J7" pad="5"/>
<contactref element="Q7" pad="3"/>
</signal>
<signal name="VDD_EXT">
<contactref element="U2" pad="15"/>
<contactref element="R8" pad="5"/>
<contactref element="R8" pad="6"/>
<contactref element="Q7" pad="1"/>
<contactref element="Q6" pad="1"/>
<contactref element="J4" pad="7"/>
</signal>
<signal name="N$15">
<contactref element="C17" pad="1"/>
<contactref element="C18" pad="2"/>
<contactref element="C13" pad="1"/>
<contactref element="C14" pad="2"/>
<contactref element="U2" pad="21"/>
<contactref element="L3" pad="1"/>
</signal>
<signal name="N$19">
<contactref element="C18" pad="1"/>
<contactref element="C19" pad="2"/>
<contactref element="C14" pad="1"/>
<contactref element="C15" pad="2"/>
<contactref element="U2" pad="22"/>
<contactref element="L1" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="Q4" pad="3"/>
<contactref element="R21" pad="2"/>
</signal>
<signal name="N$17">
<contactref element="D2/STA" pad="-"/>
<contactref element="R21" pad="1"/>
</signal>
<signal name="N$18">
<contactref element="Q4" pad="1"/>
<contactref element="R14" pad="2"/>
<contactref element="R16" pad="1"/>
</signal>
<signal name="N$20">
<contactref element="U2" pad="66"/>
<contactref element="R14" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="U2" pad="60"/>
<contactref element="R10" pad="2"/>
<contactref element="C10" pad="2"/>
</signal>
<signal name="N$21">
<contactref element="R10" pad="1"/>
<contactref element="C11" pad="2"/>
<contactref element="ANT1" pad="D"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="D9">
<contactref element="JP" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="JP" pad="2"/>
<contactref element="U4" pad="10"/>
</signal>
<signal name="LDBG_TX">
<contactref element="U2" pad="27"/>
</signal>
<signal name="LDBG_RX">
<contactref element="U2" pad="28"/>
</signal>
<signal name="GPIO12">
<contactref element="U2" pad="68"/>
</signal>
<signal name="GPIO11">
<contactref element="U2" pad="67"/>
</signal>
<signal name="GPIO10">
<contactref element="U2" pad="51"/>
</signal>
<signal name="GPIO9">
<contactref element="U2" pad="50"/>
</signal>
<signal name="GPIO8">
<contactref element="U2" pad="49"/>
</signal>
<signal name="GPIO7">
<contactref element="U2" pad="48"/>
</signal>
<signal name="GPIO6">
<contactref element="U2" pad="47"/>
<contactref element="J3" pad="6"/>
</signal>
<signal name="GPIO5">
<contactref element="U2" pad="44"/>
<contactref element="J3" pad="5"/>
</signal>
<signal name="GPIO4">
<contactref element="U2" pad="43"/>
<contactref element="J3" pad="4"/>
</signal>
<signal name="GPIO3">
<contactref element="U2" pad="42"/>
<contactref element="J3" pad="3"/>
</signal>
<signal name="GPIO2">
<contactref element="U2" pad="41"/>
<contactref element="J3" pad="2"/>
</signal>
<signal name="GPIO1">
<contactref element="U2" pad="40"/>
<contactref element="J3" pad="1"/>
</signal>
<signal name="PWM2">
<contactref element="U2" pad="36"/>
<contactref element="J13" pad="2"/>
</signal>
<signal name="PWM1">
<contactref element="U2" pad="35"/>
<contactref element="J13" pad="1"/>
</signal>
<signal name="EXT_VIN">
<contactref element="D1" pad="+"/>
<contactref element="C23" pad="2"/>
<contactref element="U4" pad="25"/>
</signal>
<signal name="LRTS">
<contactref element="U2" pad="8"/>
<contactref element="J4" pad="5"/>
</signal>
<signal name="CTS">
<contactref element="U2" pad="7"/>
<contactref element="J4" pad="4"/>
</signal>
<signal name="DSR">
<contactref element="U2" pad="6"/>
<contactref element="J4" pad="3"/>
</signal>
<signal name="DCD">
<contactref element="U2" pad="5"/>
<contactref element="J4" pad="2"/>
</signal>
<signal name="RI">
<contactref element="U2" pad="4"/>
<contactref element="J4" pad="1"/>
</signal>
<signal name="LDTR">
<contactref element="U2" pad="3"/>
<contactref element="J4" pad="6"/>
</signal>
<signal name="LINEIN_R">
<contactref element="U2" pad="23"/>
<contactref element="C7" pad="2"/>
</signal>
<signal name="LINEIN_L">
<contactref element="U2" pad="24"/>
<contactref element="C8" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="C12" pad="1"/>
<contactref element="U2" pad="19"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="PWRKEY">
<contactref element="U2" pad="1"/>
<contactref element="Q1" pad="3"/>
<contactref element="POWER_KEY" pad="2"/>
</signal>
<signal name="STXD">
<contactref element="J7" pad="4"/>
<contactref element="U4" pad="8"/>
</signal>
<signal name="SRXD">
<contactref element="J7" pad="3"/>
<contactref element="U4" pad="9"/>
</signal>
<signal name="MRXD">
<contactref element="J7" pad="1"/>
<contactref element="U4" pad="2"/>
</signal>
<signal name="MTXD">
<contactref element="J7" pad="6"/>
<contactref element="U4" pad="1"/>
</signal>
<signal name="ADC">
<contactref element="U2" pad="25"/>
<contactref element="J13" pad="3"/>
</signal>
<signal name="N$23">
<contactref element="J13" pad="6"/>
<contactref element="C7" pad="1"/>
</signal>
<signal name="N$29">
<contactref element="J13" pad="5"/>
<contactref element="C8" pad="1"/>
</signal>
<signal name="N$30">
<contactref element="R12" pad="2"/>
<contactref element="C16" pad="2"/>
<contactref element="L4" pad="1"/>
</signal>
<signal name="N$36">
<contactref element="Q1" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="U2" pad="2"/>
<contactref element="POWER_KEY" pad="1"/>
</signal>
<signal name="DISP_CLK">
<contactref element="U2" pad="11"/>
<contactref element="CLK" pad="T"/>
</signal>
<signal name="DISP_DATA">
<contactref element="U2" pad="12"/>
<contactref element="DATA" pad="T"/>
</signal>
<signal name="DISP_D/C">
<contactref element="U2" pad="13"/>
<contactref element="D/C" pad="T"/>
</signal>
<signal name="DISP_CS">
<contactref element="U2" pad="14"/>
<contactref element="CS" pad="T"/>
</signal>
<signal name="N$31">
<contactref element="Q5" pad="1"/>
<contactref element="R22" pad="1"/>
</signal>
<signal name="N$39">
<contactref element="C22" pad="1"/>
<contactref element="R24" pad="1"/>
<contactref element="R22" pad="2"/>
<contactref element="D4" pad="2"/>
</signal>
<signal name="3V3">
<contactref element="U4" pad="29"/>
</signal>
<signal name="N$50">
<contactref element="U4" pad="30"/>
</signal>
<signal name="5V">
<contactref element="R8" pad="8"/>
<contactref element="R8" pad="7"/>
<contactref element="Q5" pad="2"/>
<contactref element="C21" pad="2"/>
<contactref element="C22" pad="2"/>
<contactref element="U4" pad="28"/>
</signal>
<signal name="N$24">
<contactref element="U4" pad="3"/>
</signal>
<signal name="N$25">
<contactref element="U4" pad="4"/>
</signal>
<signal name="N$26">
<contactref element="U4" pad="5"/>
</signal>
<signal name="N$27">
<contactref element="U4" pad="6"/>
</signal>
<signal name="N$28">
<contactref element="U4" pad="7"/>
</signal>
<signal name="N$32">
<contactref element="U4" pad="11"/>
</signal>
<signal name="N$33">
<contactref element="U4" pad="12"/>
</signal>
<signal name="N$34">
<contactref element="U4" pad="13"/>
</signal>
<signal name="N$35">
<contactref element="U4" pad="14"/>
</signal>
<signal name="N$37">
<contactref element="U4" pad="16"/>
</signal>
<signal name="N$41">
<contactref element="U4" pad="22"/>
</signal>
<signal name="N$42">
<contactref element="U4" pad="21"/>
</signal>
<signal name="N$43">
<contactref element="U4" pad="20"/>
</signal>
<signal name="N$44">
<contactref element="U4" pad="19"/>
</signal>
<signal name="N$12">
<contactref element="R4" pad="1"/>
<contactref element="U1" pad="7"/>
</signal>
<signal name="N$38">
<contactref element="U1" pad="3"/>
<contactref element="L2" pad="1"/>
<contactref element="D8" pad="-"/>
</signal>
<signal name="N$47">
<contactref element="U1" pad="5"/>
<contactref element="R5" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="C1" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="PWR" pad="-"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$45">
<contactref element="L4" pad="2"/>
<contactref element="D7" pad="2"/>
<contactref element="J6" pad="1"/>
</signal>
<signal name="N$48">
<contactref element="L3" pad="2"/>
<contactref element="D5" pad="2"/>
<contactref element="J6" pad="4"/>
</signal>
<signal name="N$51">
<contactref element="D6" pad="2"/>
<contactref element="L1" pad="2"/>
<contactref element="J6" pad="3"/>
</signal>
<signal name="N$52">
<contactref element="P1" pad="1"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="Q5" pad="3"/>
<contactref element="T_5V" pad="T"/>
<contactref element="R23" pad="1"/>
<contactref element="D2" pad="+"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
