<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.5.0">
<drawing>
<board>
<plain>
<wire x1="26.8732" y1="0" x2="14.288996875" y2="0" width="0" layer="20"/>
<wire x1="11.999184375" y1="0" x2="0" y2="0" width="0" layer="20"/>
<wire x1="0" y1="0" x2="0" y2="45.466" width="0" layer="20"/>
<wire x1="0" y1="45.466" x2="11.3132875" y2="45.466" width="0" layer="20"/>
<wire x1="14.956078125" y1="45.466" x2="26.8732" y2="45.466" width="0" layer="20"/>
<wire x1="26.8732" y1="45.466" x2="26.8732" y2="0" width="0" layer="20"/>
<wire x1="11.999184375" y1="0" x2="11.999184375" y2="0.5969" width="0" layer="20"/>
<wire x1="14.288996875" y1="0.5969" x2="11.999184375" y2="0.5969" width="0" layer="20"/>
<wire x1="14.288996875" y1="0" x2="14.288996875" y2="0.5969" width="0" layer="20"/>
<wire x1="14.956078125" y1="45.466" x2="14.956078125" y2="44.3484" width="0" layer="20"/>
<wire x1="11.3132875" y1="45.466" x2="11.3132875" y2="44.3484" width="0" layer="20"/>
<wire x1="14.956078125" y1="44.3484" x2="11.3132875" y2="44.3484" width="0" layer="20"/>
<text>F103 Pod
Copyright
(c) 2018 
K. C. Lee</text>
<text>CC BY 4.0</text>
<text>B+</text>
<text>B-</text>
<text>C</text>
</plain>
<libraries>
<library name="ipc-7351-resistor">
<description>&lt;b&gt;IPC-7351 compliant SMT resistors&lt;/b&gt;&lt;br&gt;
&lt;br&gt;
Symbols copied from CadSoft rcl.lbr.&lt;br&gt;
Packages generated using genpkg_chp.ulp.&lt;br&gt;
Devices are Panasonic ERJ series types.&lt;br&gt;
&lt;br&gt;
Weartronics 2006&lt;br&gt;
http://www.weartronics.com/</description>
<packages>
<package name="RESC1608X55N">
</package>
</packages>
</library>
<library name="ipc-7351-capacitor">
<description>&lt;b&gt;IPC-7351 compliant SMT capacitors&lt;/b&gt;&lt;br&gt;
&lt;br&gt;
Symbols copied from CadSoft rcl.lbr&lt;br&gt;
Packages generated using genpkg_chp.ulp, genpkg_cae.ulp and genpkg_mld.ulp&lt;br&gt;
Devices are Vishay chip types, generic AEC types and Kemet T491 series molded body types.&lt;br&gt;
&lt;br&gt;
Weartronics 2006&lt;br&gt;
http://www.weartronics.com/</description>
<packages>
<package name="CAPC2012X145AN">
</package>
<package name="CAPC1608X92N">
</package>
</packages>
</library>
<library name="Misc Power">
<packages>
<package name="SOT95P280X135-3N">
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt;&lt;p&gt;
SOT753 - Philips Semiconductors&lt;br&gt;
Source: http://www.semiconductors.philips.com/acrobat_download/datasheets/74HC_HCT1G66_3.pdf</description>
</package>
</packages>
</library>
<library name="stm32">
<description>ST Cortex-M3 STM32F101/103 processor family  in LQFP100, 64, 48, BGA100, 64 and QFN36 pin versions</description>
<packages>
<package name="TQFP48">
</package>
</packages>
</library>
<library name="ipc-7351-diode">
<description>&lt;b&gt;IPC-7351 compliant SMT diodes&lt;/b&gt;&lt;br&gt;
&lt;br&gt;
Symbols copied from CadSoft diode.lbr.&lt;br&gt;
Packages generated using genpkg_sod.ulp, genpkg_sot.ulp and genpkg_mld.ulp.&lt;br&gt;
Devices are Fairchild Semiconductor types.&lt;br&gt;
&lt;br&gt;
Weartronics 2006&lt;br&gt;
http://www.weartronics.com/</description>
<packages>
<package name="SOT95P280X135-3N">
</package>
<package name="SOD2514X100N">
</package>
</packages>
</library>
<library name="Misc Passives">
<packages>
<package name="KPS-1290">
</package>
<package name="MOM_SW_PCB">
</package>
</packages>
</library>
<library name="wirepad">
<description>&lt;b&gt;Single Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SMD1,27-2,54">
<description>&lt;b&gt;SMD PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="led">
<description>&lt;b&gt;LEDs&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;&lt;br&gt;
Extended by Federico Battaglin &lt;author&gt;&amp;lt;federico.rd@fdpinternational.com&amp;gt;&lt;/author&gt; with DUOLED</description>
<packages>
<package name="SML0603">
<description>&lt;b&gt;SML0603-XXX (HIGH INTENSITY) LED&lt;/b&gt;&lt;p&gt;
&lt;table&gt;
&lt;tr&gt;&lt;td&gt;AG3K&lt;/td&gt;&lt;td&gt;AQUA GREEN&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;B1K&lt;/td&gt;&lt;td&gt;SUPER BLUE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;R1K&lt;/td&gt;&lt;td&gt;SUPER RED&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;R3K&lt;/td&gt;&lt;td&gt;ULTRA RED&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;O3K&lt;/td&gt;&lt;td&gt;SUPER ORANGE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;O3KH&lt;/td&gt;&lt;td&gt;SOFT ORANGE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;Y3KH&lt;/td&gt;&lt;td&gt;SUPER YELLOW&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;Y3K&lt;/td&gt;&lt;td&gt;SUPER YELLOW&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;2CW&lt;/td&gt;&lt;td&gt;WHITE&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
Source: http://www.ledtronics.com/ds/smd-0603/Dstr0092.pdf</description>
</package>
</packages>
</library>
<library name="Misc opto">
<packages>
<package name="LCD_13">
</package>
</packages>
</library>
<library name="Misc Conn">
<packages>
<package name="MINIUSB-10_3">
</package>
<package name="TF-PULL">
<description>TF / Micro SD socket is PUSH-PUSH type, the card can be pushed into and auto locked and pushed out by simply press the card.
&lt;p&gt;
Surface Mounting type.</description>
</package>
<package name="AUDIO-JACK-3_5_MP3">
</package>
</packages>
</library>
<library name="Misc Clock">
<packages>
<package name="TC38H">
<description>&lt;b&gt;CRYSTAL&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="Misc logo">
<packages>
<package name="CC-BY-75">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="SD1" library="Misc Conn" package="TF-PULL" value="TF-HOLDER">
<attribute name="NAME"/>
</element>
<element name="U3" library="stm32" package="TQFP48" value="STM32F10XCXT6"/>
<element name="C11" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C10" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="ipc-7351-capacitor" package="CAPC2012X145AN" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="ipc-7351-resistor" package="RESC1608X55N" value="22R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="ipc-7351-resistor" package="RESC1608X55N" value="22R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="X1" library="Misc Clock" package="TC38H" value="12MHz">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="19" library="ipc-7351-capacitor" package="CAPC1608X92N" value="22pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C18" library="ipc-7351-capacitor" package="CAPC1608X92N" value="22pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="ipc-7351-resistor" package="RESC1608X55N" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U2" library="Misc Power" package="SOT95P280X135-3N" value="MCP1700/TT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C17" library="ipc-7351-capacitor" package="CAPC1608X92N" value="22pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C16" library="ipc-7351-capacitor" package="CAPC1608X92N" value="22pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="ipc-7351-resistor" package="RESC1608X55N" value="1K5">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D4" library="ipc-7351-diode" package="SOT95P280X135-3N" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="X2" library="Misc Clock" package="TC38H" value="32KHz">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D2" library="ipc-7351-diode" package="SOT95P280X135-3N" value="BAT54S">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="ipc-7351-diode" package="SOT95P280X135-3N" value="BAT54S">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D3" library="ipc-7351-diode" package="SOD2514X100N" value="MM3Z3V6T1G">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="Misc Power" package="SOT23-5" value="LTC4054ES5">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="ipc-7351-resistor" package="RESC1608X55N" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="ipc-7351-resistor" package="RESC1608X55N" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C14" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C15" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S6" library="Misc Passives" package="KPS-1290" value="PCM12SMT">
<attribute name="NAME"/>
</element>
<element name="C13" library="ipc-7351-capacitor" package="CAPC2012X145AN" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R13" library="ipc-7351-resistor" package="RESC1608X55N" value="220K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED+" library="wirepad" package="SMD1,27-2,54" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="LED-" library="wirepad" package="SMD1,27-2,54" value="">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="R2" library="ipc-7351-resistor" package="RESC1608X55N" value="330R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="ipc-7351-resistor" package="RESC1608X55N" value="330R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R14" library="ipc-7351-resistor" package="RESC1608X55N" value="22R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="B+" library="wirepad" package="SMD1,27-2,54" value="">
<attribute name="VALUE"/>
</element>
<element name="B-" library="wirepad" package="SMD1,27-2,54" value="">
<attribute name="VALUE"/>
</element>
<element name="R12" library="ipc-7351-resistor" package="RESC1608X55N" value="220K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R11" library="ipc-7351-resistor" package="RESC1608X55N" value="68K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C12" library="ipc-7351-capacitor" package="CAPC1608X92N" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U4" library="Misc Power" package="SOT95P280X135-3N" value="MCP1700/TT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="ipc-7351-resistor" package="RESC1608X55N" value="0R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED1" library="led" package="SML0603" value="Green">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U5" library="Misc opto" package="LCD_13" value="LCD_UC1701"/>
<element name="R5" library="ipc-7351-resistor" package="RESC1608X55N" value="330R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S2" library="Misc Passives" package="MOM_SW_PCB" value="MOM_SW__PCB"/>
<element name="S1" library="Misc Passives" package="MOM_SW_PCB" value="MOM_SW__PCB"/>
<element name="S3" library="Misc Passives" package="MOM_SW_PCB" value="MOM_SW__PCB"/>
<element name="S4" library="Misc Passives" package="MOM_SW_PCB" value="MOM_SW__PCB"/>
<element name="S5" library="Misc Passives" package="MOM_SW_PCB" value="MOM_SW__PCB"/>
<element name="J2" library="Misc Conn" package="MINIUSB-10_3" value="MINIUSB_10_RIGHT"/>
<element name="LICENSE1" library="Misc logo" package="CC-BY-75" value="CC-BY75%"/>
<element name="C20" library="ipc-7351-capacitor" package="CAPC1608X92N" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J3" library="Misc Conn" package="AUDIO-JACK-3_5_MP3" value="3.5MM-J3MP3">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="N$54">
</signal>
<signal name="N$23">
</signal>
<signal name="GND">
<contactref element="U3" pad="23"/>
<contactref element="U3" pad="8"/>
<contactref element="U3" pad="35"/>
<contactref element="U3" pad="47"/>
<contactref element="C11" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="C10" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C7" pad="2"/>
<contactref element="C18" pad="1"/>
<contactref element="19" pad="1"/>
<contactref element="C4" pad="2"/>
<contactref element="U2" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="C16" pad="1"/>
<contactref element="C17" pad="1"/>
<contactref element="D2" pad="1"/>
<contactref element="D1" pad="1"/>
<contactref element="D3" pad="A"/>
<contactref element="C2" pad="2"/>
<contactref element="U1" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="SD1" pad="S4"/>
<contactref element="SD1" pad="S3"/>
<contactref element="SD1" pad="S2"/>
<contactref element="SD1" pad="S1"/>
<contactref element="SD1" pad="6"/>
<contactref element="C5" pad="2"/>
<contactref element="S6" pad="P$1"/>
<contactref element="S6" pad="P$2"/>
<contactref element="S6" pad="P$4"/>
<contactref element="R10" pad="1"/>
<contactref element="U3" pad="20"/>
<contactref element="C13" pad="2"/>
<contactref element="B-" pad="1"/>
<contactref element="R12" pad="1"/>
<contactref element="C12" pad="2"/>
<contactref element="U4" pad="1"/>
<contactref element="R13" pad="2"/>
<contactref element="S6" pad="P$3"/>
<contactref element="U5" pad="7"/>
<contactref element="S2" pad="COM"/>
<contactref element="S1" pad="COM"/>
<contactref element="S5" pad="COM"/>
<contactref element="S4" pad="COM"/>
<contactref element="J2" pad="10"/>
<contactref element="J2" pad="G2"/>
<contactref element="J2" pad="G3"/>
<contactref element="J2" pad="G4"/>
<contactref element="J2" pad="G1"/>
<contactref element="J2" pad="G5"/>
<contactref element="J2" pad="5"/>
<contactref element="J2" pad="1"/>
<contactref element="C20" pad="2"/>
<contactref element="J3" pad="1"/>
</signal>
<signal name="+3.3V">
<contactref element="U3" pad="24"/>
<contactref element="U3" pad="36"/>
<contactref element="U3" pad="48"/>
<contactref element="C9" pad="1"/>
<contactref element="C11" pad="1"/>
<contactref element="C8" pad="1"/>
<contactref element="U3" pad="9"/>
<contactref element="C6" pad="1"/>
<contactref element="C7" pad="1"/>
<contactref element="U2" pad="2"/>
<contactref element="R1" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="R14" pad="2"/>
<contactref element="U5" pad="8"/>
<contactref element="R5" pad="2"/>
<contactref element="S3" pad="COM"/>
<contactref element="J2" pad="9"/>
</signal>
<signal name="N$3">
</signal>
<signal name="N$15">
</signal>
<signal name="D-">
<contactref element="U3" pad="32"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="D+">
<contactref element="U3" pad="33"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="USB_D-">
<contactref element="R8" pad="1"/>
<contactref element="J2" pad="4"/>
</signal>
<signal name="USB_D+">
<contactref element="R9" pad="1"/>
<contactref element="R1" pad="1"/>
<contactref element="J2" pad="6"/>
</signal>
<signal name="PA7_MOSI1">
<contactref element="U3" pad="17"/>
<contactref element="U5" pad="9"/>
</signal>
<signal name="PA6_MISO1">
<contactref element="U3" pad="16"/>
<contactref element="U5" pad="11"/>
</signal>
<signal name="PA5_SCK1">
<contactref element="U3" pad="15"/>
<contactref element="U5" pad="10"/>
</signal>
<signal name="PA4_NSS1">
<contactref element="U3" pad="14"/>
<contactref element="U5" pad="13"/>
</signal>
<signal name="SW_MIDDLE">
<contactref element="U3" pad="44"/>
<contactref element="R10" pad="2"/>
<contactref element="U3" pad="29"/>
<contactref element="S3" pad="NO"/>
</signal>
<signal name="LED-">
<contactref element="LED-" pad="1"/>
<contactref element="U3" pad="45"/>
<contactref element="U3" pad="46"/>
</signal>
<signal name="PB12_NSS1">
<contactref element="U3" pad="25"/>
<contactref element="SD1" pad="2"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="PB13_SCK2">
<contactref element="U3" pad="26"/>
<contactref element="SD1" pad="5"/>
</signal>
<signal name="PB14_MISO2">
<contactref element="U3" pad="27"/>
<contactref element="SD1" pad="7"/>
</signal>
<signal name="PB15_MOSI2">
<contactref element="U3" pad="28"/>
<contactref element="SD1" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="U3" pad="1"/>
<contactref element="C10" pad="1"/>
<contactref element="D4" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="U3" pad="5"/>
<contactref element="C18" pad="2"/>
<contactref element="X1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="U3" pad="6"/>
<contactref element="19" pad="2"/>
<contactref element="X1" pad="2"/>
</signal>
<signal name="!RESET">
<contactref element="U3" pad="7"/>
<contactref element="C4" pad="1"/>
<contactref element="U5" pad="12"/>
</signal>
<signal name="N$11">
<contactref element="C16" pad="2"/>
<contactref element="U3" pad="3"/>
<contactref element="X2" pad="1"/>
</signal>
<signal name="N$12">
<contactref element="U3" pad="4"/>
<contactref element="C17" pad="2"/>
<contactref element="X2" pad="2"/>
</signal>
<signal name="+UB">
<contactref element="D4" pad="1"/>
<contactref element="U1" pad="3"/>
<contactref element="B+" pad="1"/>
<contactref element="S6" pad="O"/>
</signal>
<signal name="IO_TIP">
<contactref element="U3" pad="42"/>
<contactref element="U3" pad="31"/>
<contactref element="D1" pad="3"/>
<contactref element="U3" pad="18"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="VUSB">
<contactref element="U1" pad="4"/>
<contactref element="C1" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="J2" pad="2"/>
</signal>
<signal name="VCC">
<contactref element="U2" pad="3"/>
<contactref element="C3" pad="1"/>
<contactref element="R11" pad="2"/>
<contactref element="U4" pad="3"/>
<contactref element="S6" pad="P"/>
<contactref element="C20" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="U1" pad="5"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="N$13">
<contactref element="SD1" pad="4"/>
<contactref element="C13" pad="1"/>
<contactref element="U4" pad="2"/>
</signal>
<signal name="N$10">
<contactref element="U1" pad="1"/>
<contactref element="LED1" pad="C"/>
</signal>
<signal name="N$20">
<contactref element="C15" pad="1"/>
<contactref element="U5" pad="4"/>
</signal>
<signal name="N$21">
<contactref element="C15" pad="2"/>
<contactref element="U5" pad="3"/>
</signal>
<signal name="N$22">
<contactref element="C14" pad="1"/>
<contactref element="U5" pad="2"/>
</signal>
<signal name="N$24">
<contactref element="C14" pad="2"/>
<contactref element="U5" pad="1"/>
</signal>
<signal name="N$28">
</signal>
<signal name="TCK/SWCLK">
<contactref element="U3" pad="37"/>
<contactref element="J2" pad="7"/>
</signal>
<signal name="TMS/SWDIO">
<contactref element="U3" pad="34"/>
<contactref element="J2" pad="3"/>
</signal>
<signal name="IO_RING">
<contactref element="U3" pad="43"/>
<contactref element="U3" pad="30"/>
<contactref element="D2" pad="3"/>
<contactref element="U3" pad="19"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="R6" pad="2"/>
<contactref element="LED1" pad="A"/>
</signal>
<signal name="N$9">
<contactref element="R2" pad="1"/>
<contactref element="J3" pad="2"/>
</signal>
<signal name="N$14">
<contactref element="R3" pad="1"/>
<contactref element="J3" pad="3"/>
</signal>
<signal name="N$16">
<contactref element="LED+" pad="1"/>
<contactref element="R14" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="U3" pad="10"/>
<contactref element="R11" pad="1"/>
<contactref element="R12" pad="2"/>
<contactref element="C12" pad="1"/>
</signal>
<signal name="SW_LEFT">
<contactref element="U3" pad="38"/>
<contactref element="S1" pad="NO"/>
</signal>
<signal name="SW_TOP">
<contactref element="U3" pad="41"/>
<contactref element="S2" pad="NO"/>
</signal>
<signal name="SW_RIGHT">
<contactref element="U3" pad="40"/>
<contactref element="S5" pad="NO"/>
</signal>
<signal name="SW_BOT">
<contactref element="U3" pad="39"/>
<contactref element="S4" pad="NO"/>
</signal>
<signal name="N$4">
<contactref element="S6" pad="S"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="VCLAMP">
<contactref element="D2" pad="2"/>
<contactref element="D1" pad="2"/>
<contactref element="D3" pad="K"/>
<contactref element="C2" pad="1"/>
<contactref element="R5" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
