<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="7.3914" y1="56.896" x2="39.7764" y2="56.9214" width="0.3048" layer="20"/>
<wire x1="39.7764" y1="56.9214" x2="39.7764" y2="20.3962" width="0.3048" layer="20"/>
<wire x1="39.7764" y1="20.3962" x2="7.3152" y2="20.3962" width="0.3048" layer="20"/>
<wire x1="7.3152" y1="20.3962" x2="7.3152" y2="56.6674" width="0.3048" layer="20"/>
<text>Bridge UltraSonic</text>
</plain>
<libraries>
<library name="fab">
<packages>
<package name="C1206FAB">
</package>
<package name="SOIC14">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt;</description>
</package>
<package name="R1206">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;</description>
</package>
<package name="2X03SMD">
</package>
<package name="2X02SMD">
</package>
<package name="LED1206FAB">
<description>LED1206 FAB style (smaller pads to allow trace between)</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="fab" package="C1206FAB" value="1uf"/>
<element name="IC1" library="fab" package="SOIC14" value="ATTINY44-SSU"/>
<element name="R2" library="fab" package="R1206" value="10k"/>
<element name="R3" library="fab" package="R1206" value="499"/>
<element name="R4" library="fab" package="R1206" value="0"/>
<element name="U$2" library="fab" package="2X03SMD" value="AVRISPSMD"/>
<element name="U$3" library="fab" package="2X02SMD" value="PINHD-2X2-SMD"/>
<element name="U$4" library="fab" package="2X02SMD" value="PINHD-2X2-SMD"/>
<element name="U$5" library="fab" package="LED1206FAB" value="LEDFAB1206"/>
</elements>
<signals>
<signal name="GND">
<contactref element="C1" pad="2"/>
<contactref element="U$2" pad="6"/>
<contactref element="IC1" pad="14"/>
<contactref element="U$5" pad="2"/>
<contactref element="U$4" pad="3"/>
<contactref element="R4" pad="2"/>
<contactref element="U$3" pad="4"/>
</signal>
<signal name="VCC">
<contactref element="C1" pad="1"/>
<contactref element="U$2" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="U$4" pad="4"/>
<contactref element="U$3" pad="3"/>
</signal>
<signal name="TX">
<contactref element="U$4" pad="2"/>
<contactref element="IC1" pad="13"/>
</signal>
<signal name="MOSI">
<contactref element="U$2" pad="4"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="MISO">
<contactref element="U$2" pad="1"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="RX">
<contactref element="U$4" pad="1"/>
<contactref element="IC1" pad="12"/>
</signal>
<signal name="RST">
<contactref element="U$2" pad="5"/>
<contactref element="R2" pad="1"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="ECHO">
<contactref element="IC1" pad="3"/>
<contactref element="U$3" pad="2"/>
</signal>
<signal name="SCK">
<contactref element="U$2" pad="3"/>
<contactref element="IC1" pad="9"/>
</signal>
<signal name="LED">
<contactref element="R3" pad="2"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="N$2">
<contactref element="U$5" pad="1"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="TRIG">
<contactref element="IC1" pad="2"/>
<contactref element="U$3" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
