<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.2.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="52.92" y2="0" width="0" layer="20"/>
<wire x1="52.92" y1="0" x2="52.92" y2="38.53" width="0" layer="20"/>
<wire x1="52.92" y1="38.53" x2="0" y2="38.53" width="0" layer="20"/>
<wire x1="0" y1="38.53" x2="0" y2="0" width="0" layer="20"/>
</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="2X03SMD">
</package>
<package name="R1206FAB">
</package>
<package name="1X06SMD">
</package>
<package name="EFOBM">
</package>
<package name="OP1206">
</package>
</packages>
</library>
<library name="ADXL343BCCZ">
<packages>
<package name="LGA_CC-14-1">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="fab" package="C1206FAB" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="fab" package="C1206FAB" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC1" library="fab" package="SOIC14" value="ATTINY44-SSU">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP1" library="fab" package="2X03SMD" value="J1">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="fab" package="R1206FAB" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="fab" package="R1206FAB" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="fab" package="R1206FAB" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="fab" package="1X06SMD" value="FTDI-SMD-HEADER">
<attribute name="NAME"/>
</element>
<element name="U$2" library="fab" package="EFOBM" value="20MHz"/>
<element name="U$3" library="fab" package="OP1206" value="PHOTOTRANSISTOR-NPN1206">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="ADXL343BCCZ" package="LGA_CC-14-1" value="ADXL343BCCZ">
<attribute name="MANUFACTURER_PART_NUMBER" value="ADXL343BCCZ"/>
<attribute name="NAME"/>
<attribute name="VENDOR" value="Analog Devices Inc"/>
</element>
<element name="R4" library="fab" package="R1206FAB" value="0ohm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="fab" package="R1206FAB" value="0ohm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="fab" package="R1206FAB" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="XTAL1">
<contactref element="IC1" pad="2"/>
<contactref element="U$2" pad="3"/>
</signal>
<signal name="XTAL2">
<contactref element="IC1" pad="3"/>
<contactref element="U$2" pad="1"/>
</signal>
<signal name="GND">
<contactref element="C1" pad="1"/>
<contactref element="IC1" pad="14"/>
<contactref element="JP1" pad="1"/>
<contactref element="U1" pad="5"/>
<contactref element="U1" pad="4"/>
<contactref element="U1" pad="2"/>
<contactref element="U$1" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="U$3" pad="COLLECTOR"/>
<contactref element="U1" pad="10"/>
<contactref element="U1" pad="12"/>
<contactref element="U$2" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R5" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="PA0">
<contactref element="IC1" pad="13"/>
<contactref element="U$1" pad="4"/>
</signal>
<signal name="PA1">
<contactref element="IC1" pad="12"/>
<contactref element="U$1" pad="5"/>
</signal>
<signal name="MOSI">
<contactref element="IC1" pad="7"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="MISO">
<contactref element="IC1" pad="8"/>
<contactref element="JP1" pad="6"/>
</signal>
<signal name="SCK">
<contactref element="IC1" pad="9"/>
<contactref element="JP1" pad="4"/>
</signal>
<signal name="RST">
<contactref element="JP1" pad="2"/>
<contactref element="IC1" pad="4"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="OUT">
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="U1" pad="1"/>
<contactref element="U1" pad="6"/>
<contactref element="R1" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="JP1" pad="5"/>
<contactref element="U1" pad="7"/>
<contactref element="C3" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="U$1" pad="3"/>
</signal>
<signal name="PA3">
<contactref element="IC1" pad="10"/>
<contactref element="U1" pad="14"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="PA2">
<contactref element="IC1" pad="11"/>
<contactref element="U1" pad="13"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="PA7">
<contactref element="IC1" pad="6"/>
<contactref element="U$3" pad="EMITTER"/>
<contactref element="R6" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
