<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.2.2">
<drawing>
<board>
<plain>
<text>-      +</text>
<wire x1="0" y1="4" x2="0" y2="43" width="0.1524" layer="20"/>
<wire x1="0" y1="43" x2="3.609" y2="46.609" width="0.1524" layer="20" curve="-90"/>
<wire x1="3.609" y1="46.609" x2="21.971" y2="46.609" width="0.1524" layer="20"/>
<wire x1="21.971" y1="46.609" x2="39.5605" y2="29.0195" width="0.1524" layer="20" curve="-90"/>
<wire x1="39.5605" y1="29.0195" x2="39.5605" y2="23.3045" width="0.1524" layer="20"/>
<wire x1="39.5605" y1="23.3045" x2="35.814" y2="19.558" width="0.1524" layer="20" curve="-90"/>
<wire x1="35.814" y1="19.558" x2="34.9885" y2="19.558" width="0.1524" layer="20"/>
<wire x1="34.9885" y1="19.558" x2="15.5575" y2="0.127" width="0.1524" layer="20"/>
<wire x1="15.5575" y1="0.127" x2="3.7465" y2="0.127" width="0.1524" layer="20"/>
<wire x1="3.7465" y1="0.127" x2="0" y2="4" width="0.1524" layer="20" curve="-91.902294"/>
</plain>
<libraries>
<library name="PiezoFFC">
<packages>
<package name="R0402">
</package>
<package name="SEEED-LED_LED-0603">
</package>
<package name="HOLES_2,8-PAD">
<description>&lt;b&gt;MOUNTING PAD&lt;/b&gt; 2.8 mm, round</description>
</package>
<package name="LOGO-PYR0BALL-SS-20MM">
</package>
<package name="TP13SQ-HOLE">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
<package name="SILABS_QFN20">
</package>
<package name="SOT143">
</package>
<package name="AMPHENOL_10118192-0001LF">
</package>
<package name="SEEED-SWITCH_SW2-2.6-3.0X2.5X1.2+0.4MM">
</package>
<package name="HDRVR5W64P254_1X5_1270X254X575B">
<description>Single-row, 5-pin Receptacle Header (Female) Straight, 2.54 mm (0.10 in) col pitch, 5.75 mm insulator length, 12.70 X 2.54 X 5.75 mm body
&lt;p&gt;Single-row (1X5), 5-pin Receptacle Header (Female) Straight package with 2.54 mm (0.10 in) col pitch, 0.64 mm lead width, 3.00 mm tail length and 5.75 mm insulator length with overall size 12.70 X 2.54 X 5.75 mm, pin pattern - clockwise from top left&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="TX" library="PiezoFFC" package="SEEED-LED_LED-0603" value="">
<attribute name="NAME"/>
</element>
<element name="RX" library="PiezoFFC" package="SEEED-LED_LED-0603" value="">
<attribute name="NAME"/>
</element>
<element name="H1" library="PiezoFFC" package="HOLES_2,8-PAD" value="HOLES_MOUNT-PAD-ROUND2.8"/>
<element name="H2" library="PiezoFFC" package="HOLES_2,8-PAD" value="HOLES_MOUNT-PAD-ROUND2.8"/>
<element name="H3" library="PiezoFFC" package="HOLES_2,8-PAD" value="HOLES_MOUNT-PAD-ROUND2.8"/>
<element name="R3" library="PiezoFFC" package="R0402" value="">
<attribute name="MPN" value="RC0402JR-070RL"/>
<attribute name="NAME"/>
<attribute name="VALUE" value="0R"/>
</element>
<element name="RXD" library="PiezoFFC" package="TP13SQ-HOLE" value="TP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="TXD" library="PiezoFFC" package="TP13SQ-HOLE" value="TP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="PiezoFFC" package="TP13SQ-HOLE" value="TP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="+5V" library="PiezoFFC" package="TP13SQ-HOLE" value="TP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="RST." library="PiezoFFC" package="TP13SQ-HOLE" value="TP">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="PiezoFFC" package="LOGO-PYR0BALL-SS-20MM" value=""/>
<element name="PWR" library="PiezoFFC" package="SEEED-LED_LED-0603" value="">
<attribute name="NAME"/>
</element>
<element name="R8" library="PiezoFFC" package="R0402" value="">
<attribute name="MPN" value="RC0402JR-070RL"/>
<attribute name="NAME"/>
<attribute name="VALUE" value="0R"/>
</element>
<element name="U1" library="PiezoFFC" package="SILABS_QFN20" value="CP2102N-A01-GQFN20">
<attribute name="DESCRIPTION" value=" Usb-Uart Interface Bridge, Qfn-20 "/>
<attribute name="DIGI-KEY_PART_NUMBER" value="336-3692-ND"/>
<attribute name="DIGI-KEY_PURCHASE_URL" value="https://www.digikey.com/product-detail/en/silicon-labs/CP2102N-A01-GQFN20/336-3692-ND/6012517?utm_source=snapeda&amp;utm_medium=aggregator&amp;utm_campaign=symbol"/>
<attribute name="MF" value="Silicon Labs"/>
<attribute name="MP" value="CP2102N-A01-GQFN20"/>
<attribute name="NAME"/>
<attribute name="PACKAGE" value="QFN-20 Silicon Labs"/>
</element>
<element name="D1" library="PiezoFFC" package="SOT143" value="SP0503BAHTG">
<attribute name="DESCRIPTION" value=" SP050xBA Series 8 V 30 pF Uni-Directional SMT TVS Avalanche Diode Array SOT-143 "/>
<attribute name="DIGI-KEY_PART_NUMBER" value="F2715CT-ND"/>
<attribute name="DIGI-KEY_PURCHASE_URL" value="https://www.digikey.com/product-detail/en/littelfuse-inc/SP0503BAHTG/F2715CT-ND/1154322?utm_source=snapeda&amp;utm_medium=aggregator&amp;utm_campaign=symbol"/>
<attribute name="MF" value="Littelfuse Inc."/>
<attribute name="MP" value="SP0503BAHTG"/>
<attribute name="NAME"/>
<attribute name="PACKAGE" value="SOT-143 Littelfuse"/>
</element>
<element name="J1" library="PiezoFFC" package="AMPHENOL_10118192-0001LF" value="10118192-0001LF">
<attribute name="DESCRIPTION" value=" Conn Micro USB Type B RCP 5 POS 0.65mm Solder RA SMD 5 Terminal 1 Port T/R "/>
<attribute name="DIGI-KEY_PART_NUMBER" value="609-4613-1-ND"/>
<attribute name="DIGI-KEY_PURCHASE_URL" value="https://www.digikey.com/product-detail/en/amphenol-fci/10118192-0001LF/609-4613-1-ND/2785378?utm_source=snapeda&amp;utm_medium=aggregator&amp;utm_campaign=symbol"/>
<attribute name="MF" value="Amphenol FCI"/>
<attribute name="MP" value="10118192-0001LF"/>
<attribute name="PACKAGE" value="None"/>
</element>
<element name="RESET" library="PiezoFFC" package="SEEED-SWITCH_SW2-2.6-3.0X2.5X1.2+0.4MM" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="PiezoFFC" package="R0402" value="22K">
<attribute name="MPN" value="RC0402JR-070RL"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="PiezoFFC" package="R0402" value="47K">
<attribute name="MPN" value="RC0402JR-070RL"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="TTL" library="PiezoFFC" package="HDRVR5W64P254_1X5_1270X254X575B" value="JST-2.54MM_5P-2.54JST_2.54MM_5P_F">
<attribute name="NAME"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="H3" pad="B2,8"/>
<contactref element="H2" pad="B2,8"/>
<contactref element="H1" pad="B2,8"/>
<contactref element="GND" pad="TP"/>
<contactref element="PWR" pad="-"/>
<contactref element="J1" pad="SH4"/>
<contactref element="J1" pad="SH3"/>
<contactref element="J1" pad="SH2"/>
<contactref element="J1" pad="SH6"/>
<contactref element="J1" pad="SH1"/>
<contactref element="J1" pad="SH5"/>
<contactref element="J1" pad="5"/>
<contactref element="RESET" pad="1"/>
<contactref element="D1" pad="1"/>
<contactref element="U1" pad="3"/>
<contactref element="U1" pad="12"/>
<contactref element="U1" pad="21"/>
<contactref element="R2" pad="1"/>
<contactref element="TTL" pad="2"/>
</signal>
<signal name="5V_DC">
<contactref element="R3" pad="1"/>
<contactref element="+5V" pad="TP"/>
<contactref element="R8" pad="1"/>
<contactref element="D1" pad="2"/>
<contactref element="U1" pad="7"/>
<contactref element="J1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="TTL" pad="1"/>
</signal>
<signal name="LED_VCC">
<contactref element="RX" pad="+"/>
<contactref element="TX" pad="+"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="RST">
<contactref element="RST." pad="TP"/>
<contactref element="RESET" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="R8" pad="2"/>
<contactref element="PWR" pad="+"/>
</signal>
<signal name="VDD">
<contactref element="U1" pad="6"/>
</signal>
<signal name="RXD">
<contactref element="U1" pad="18"/>
<contactref element="RXD" pad="TP"/>
<contactref element="TTL" pad="4"/>
</signal>
<signal name="TXD">
<contactref element="U1" pad="17"/>
<contactref element="TXD" pad="TP"/>
<contactref element="TTL" pad="3"/>
</signal>
<signal name="RXT">
<contactref element="U1" pad="19"/>
<contactref element="RX" pad="-"/>
</signal>
<signal name="TXT">
<contactref element="U1" pad="20"/>
<contactref element="TX" pad="-"/>
</signal>
<signal name="D-">
<contactref element="J1" pad="2"/>
<contactref element="D1" pad="3"/>
<contactref element="U1" pad="5"/>
</signal>
<signal name="D+">
<contactref element="J1" pad="3"/>
<contactref element="D1" pad="4"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="VBUS">
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="2"/>
<contactref element="U1" pad="8"/>
<contactref element="TTL" pad="5"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
