<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.7.0">
<drawing>
<schematic>
<libraries>
<library name="fab">
<packages>
<package name="SOIC14">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt;</description>
</package>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="QFN/MLF20">
<description>&lt;b&gt;HP-VFQFP-N20&lt;/b&gt; Micro Lead Frame package (MLF)</description>
</package>
<package name="2X03SMD">
</package>
<package name="2X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="C1206">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;</description>
</package>
<package name="C1206K">
<description>&lt;b&gt;Ceramic Chip Capacitor KEMET 1206 reflow solder&lt;/b&gt;&lt;p&gt;
Metric Code Size 3216</description>
</package>
<package name="C1206FAB">
</package>
<package name="SOD123">
<description>&lt;b&gt;SMALL OUTLINE DIODE&lt;/b&gt;</description>
</package>
<package name="DO41Z10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2.54 mm, horizontal, grid 10.16 mm</description>
</package>
<package name="R1206">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;</description>
</package>
<package name="R1206W">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
wave soldering</description>
</package>
<package name="R1206FAB">
</package>
<package name="SJFAB">
</package>
<package name="EFOBM">
</package>
<package name="USB_MINIB">
</package>
</packages>
<symbols>
<symbol name="ATTINY24/44/84">
<pin name="GND" direction="pwr"/>
<pin name="VCC" direction="pwr"/>
<pin name="(PCINT7/ICP/OC0B/ADC7)PA7"/>
<pin name="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6"/>
<pin name="(PCINT5/OC1B/MISO/DO/ADC5)PA5"/>
<pin name="(PCINT4/T1/SCL/USCK/ADC4)PA4"/>
<pin name="(PCINT3/T0/ADC3)PA3"/>
<pin name="(PCINT2/AIN1/ADC2)PA2"/>
<pin name="(PCINT1/AIN0/ADC1)PA1"/>
<pin name="(PCINT0/AREF/ADC0)PA0"/>
<pin name="(PCINT11/RESET/DW)PB3"/>
<pin name="(PCINT10/INT0/OC0A/CKOUT)PB2"/>
<pin name="(PCINT9/XTAL2)PB1"/>
<pin name="(PCINT8/XTAL1/CLKI)PB0"/>
</symbol>
<symbol name="AVRISP">
<pin name="MISO" direction="pas" function="dot"/>
<pin name="VCC" direction="pas" function="dot"/>
<pin name="SCK" direction="pas" function="dot"/>
<pin name="MOSI" direction="pas" function="dot"/>
<pin name="RST" direction="pas" function="dot"/>
<pin name="GND" direction="pas" function="dot"/>
</symbol>
<symbol name="C-US">
<pin name="1" direction="pas"/>
<pin name="2" direction="pas"/>
</symbol>
<symbol name="ZENER">
<pin name="ANODE" direction="pas"/>
<pin name="CATHODE" direction="pas"/>
</symbol>
<symbol name="R-US">
<pin name="2" direction="pas"/>
<pin name="1" direction="pas"/>
</symbol>
<symbol name="SJFAB">
<pin name="2" direction="pas"/>
<pin name="1" direction="pas"/>
</symbol>
<symbol name="CERAMIC_RESONATOR">
<pin name="1" direction="pas"/>
<pin name="2" direction="pas"/>
<pin name="3" direction="pas"/>
</symbol>
<symbol name="USB">
<pin name="D+"/>
<pin name="D-"/>
<pin name="VBUS"/>
<pin name="GND"/>
<pin name="SHIELD" direction="pas"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="ATTINY44" prefix="IC">
<gates>
<gate name="1" symbol="ATTINY24/44/84"/>
</gates>
<devices>
<device name="-SSU" package="SOIC14">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="13"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="12"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="5"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="4"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="11"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="10"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="9"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="8"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="7"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="6"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="2"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="3"/>
<connect gate="1" pin="GND" pad="14"/>
<connect gate="1" pin="VCC" pad="1"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="-PU" package="DIL14">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="13"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="12"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="5"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="4"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="11"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="10"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="9"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="8"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="7"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="6"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="2"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="3"/>
<connect gate="1" pin="GND" pad="14"/>
<connect gate="1" pin="VCC" pad="1"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="-MU" package="QFN/MLF20">
<connects>
<connect gate="1" pin="(PCINT0/AREF/ADC0)PA0" pad="5"/>
<connect gate="1" pin="(PCINT1/AIN0/ADC1)PA1" pad="4"/>
<connect gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2" pad="14"/>
<connect gate="1" pin="(PCINT11/RESET/DW)PB3" pad="13"/>
<connect gate="1" pin="(PCINT2/AIN1/ADC2)PA2" pad="3"/>
<connect gate="1" pin="(PCINT3/T0/ADC3)PA3" pad="2"/>
<connect gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4" pad="1"/>
<connect gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5" pad="20"/>
<connect gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6" pad="16"/>
<connect gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7" pad="15"/>
<connect gate="1" pin="(PCINT8/XTAL1/CLKI)PB0" pad="11"/>
<connect gate="1" pin="(PCINT9/XTAL2)PB1" pad="12"/>
<connect gate="1" pin="GND" pad="8"/>
<connect gate="1" pin="VCC" pad="9"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="AVRISP">
<gates>
<gate name="G$1" symbol="AVRISP"/>
</gates>
<devices>
<device name="SMD" package="2X03SMD">
<connects>
<connect gate="G$1" pin="GND" pad="6"/>
<connect gate="G$1" pin="MISO" pad="1"/>
<connect gate="G$1" pin="MOSI" pad="4"/>
<connect gate="G$1" pin="RST" pad="5"/>
<connect gate="G$1" pin="SCK" pad="3"/>
<connect gate="G$1" pin="VCC" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="" package="2X03">
<connects>
<connect gate="G$1" pin="GND" pad="6"/>
<connect gate="G$1" pin="MISO" pad="1"/>
<connect gate="G$1" pin="MOSI" pad="4"/>
<connect gate="G$1" pin="RST" pad="5"/>
<connect gate="G$1" pin="SCK" pad="3"/>
<connect gate="G$1" pin="VCC" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="CAP-US" prefix="C">
<gates>
<gate name="G$1" symbol="C-US"/>
</gates>
<devices>
<device name="1206" package="C1206">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206K" package="C1206K">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206FAB" package="C1206FAB">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="ZENER_DIODE" prefix="D" uservalue="yes">
<description>zener diode</description>
<gates>
<gate name="1" symbol="ZENER"/>
</gates>
<devices>
<device name="DO41Z10" package="DO41Z10">
<connects>
<connect gate="1" pin="ANODE" pad="A"/>
<connect gate="1" pin="CATHODE" pad="C"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="SOD123" package="SOD123">
<connects>
<connect gate="1" pin="ANODE" pad="ANODE"/>
<connect gate="1" pin="CATHODE" pad="CATHODE"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="RES-US" prefix="R" uservalue="yes">
<description>&lt;b&gt;Resistor (US Symbol)&lt;/b&gt;
&lt;p&gt;
Variants with postfix FAB are widened to allow the routing of internal traces</description>
<gates>
<gate name="G$1" symbol="R-US"/>
</gates>
<devices>
<device name="1206" package="R1206">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206W" package="R1206W">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="1206FAB" package="R1206FAB">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="SOLDER_JUMPER">
<gates>
<gate name="G$1" symbol="SJFAB"/>
</gates>
<devices>
<device name="" package="SJFAB">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="RESONATOR">
<gates>
<gate name="G$1" symbol="CERAMIC_RESONATOR"/>
</gates>
<devices>
<device name="" package="EFOBM">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
<connect gate="G$1" pin="3" pad="3"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="USB_MINIB">
<gates>
<gate name="G$1" symbol="USB"/>
</gates>
<devices>
<device name="" package="USB_MINIB">
<connects>
<connect gate="G$1" pin="D+" pad="D+"/>
<connect gate="G$1" pin="D-" pad="D-"/>
<connect gate="G$1" pin="GND" pad="GND"/>
<connect gate="G$1" pin="SHIELD" pad="SHIELD@1 SHIELD@2 SHIELD@3 SHIELD@4"/>
<connect gate="G$1" pin="VBUS" pad="VBUS"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="jumper">
<description>&lt;b&gt;Jumpers&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SJ">
<description>&lt;b&gt;Solder jumper&lt;/b&gt;</description>
</package>
<package name="SJW">
<description>&lt;b&gt;Solder jumper&lt;/b&gt;</description>
</package>
</packages>
<symbols>
<symbol name="SJ">
<pin name="2" direction="pas"/>
<pin name="1" direction="pas"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="SJ" prefix="SJ" uservalue="yes">
<description>SMD solder &lt;b&gt;JUMPER&lt;/b&gt;</description>
<gates>
<gate name="1" symbol="SJ"/>
</gates>
<devices>
<device name="" package="SJ">
<connects>
<connect gate="1" pin="1" pad="1"/>
<connect gate="1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
<device name="W" package="SJW">
<connects>
<connect gate="1" pin="1" pad="1"/>
<connect gate="1" pin="2" pad="2"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<parts>
<part name="IC1" library="fab" deviceset="ATTINY44" device="-SSU"/>
<part name="U$1" library="fab" deviceset="AVRISP" device="SMD"/>
<part name="C1" library="fab" deviceset="CAP-US" device="1206FAB"/>
<part name="D3" library="fab" deviceset="ZENER_DIODE" device="SOD123"/>
<part name="D4" library="fab" deviceset="ZENER_DIODE" device="SOD123"/>
<part name="R1" library="fab" deviceset="RES-US" device="1206FAB"/>
<part name="R2" library="fab" deviceset="RES-US" device="1206FAB"/>
<part name="R4" library="fab" deviceset="RES-US" device="1206FAB"/>
<part name="R5" library="fab" deviceset="RES-US" device="1206FAB"/>
<part name="R6" library="fab" deviceset="RES-US" device="1206FAB"/>
<part name="U$4" library="fab" deviceset="SOLDER_JUMPER" device=""/>
<part name="SJ1" library="jumper" deviceset="SJ" device="W"/>
<part name="20MHZ" library="fab" deviceset="RESONATOR" device=""/>
<part name="U$3" library="fab" deviceset="USB_MINIB" device=""/>
</parts>
<sheets>
<sheet>
<plain>
</plain>
<busses>
</busses>
<nets>
<net name="VCC">
<segment>
<pinref part="IC1" gate="1" pin="VCC"/>
</segment>
<segment>
<pinref part="C1" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="R6" gate="G$1" pin="1"/>
</segment>
<segment>
<pinref part="R2" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="SJ1" gate="1" pin="2"/>
</segment>
<segment>
<pinref part="U$3" gate="G$1" pin="VBUS"/>
</segment>
</net>
<net name="PB3">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT11/RESET/DW)PB3"/>
</segment>
<segment>
<pinref part="U$4" gate="G$1" pin="1"/>
<pinref part="R6" gate="G$1" pin="2"/>
</segment>
</net>
<net name="RST">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT3/T0/ADC3)PA3"/>
<pinref part="U$1" gate="G$1" pin="RST"/>
</segment>
<segment>
<pinref part="U$4" gate="G$1" pin="2"/>
</segment>
</net>
<net name="GND">
<segment>
<pinref part="U$1" gate="G$1" pin="GND"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="GND"/>
</segment>
<segment>
<pinref part="D4" gate="1" pin="ANODE"/>
</segment>
<segment>
<pinref part="D3" gate="1" pin="ANODE"/>
</segment>
<segment>
<pinref part="C1" gate="G$1" pin="1"/>
</segment>
<segment>
<pinref part="20MHZ" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="U$3" gate="G$1" pin="GND"/>
</segment>
</net>
<net name="MOSI">
<segment>
<pinref part="U$1" gate="G$1" pin="MOSI"/>
<pinref part="IC1" gate="1" pin="(PCINT6/OC1A/SDA/MOSI/ADC6)PA6"/>
</segment>
</net>
<net name="MISO">
<segment>
<pinref part="U$1" gate="G$1" pin="MISO"/>
<pinref part="IC1" gate="1" pin="(PCINT5/OC1B/MISO/DO/ADC5)PA5"/>
</segment>
</net>
<net name="SCK">
<segment>
<pinref part="U$1" gate="G$1" pin="SCK"/>
<pinref part="IC1" gate="1" pin="(PCINT4/T1/SCL/USCK/ADC4)PA4"/>
</segment>
</net>
<net name="J1">
<segment>
<pinref part="U$1" gate="G$1" pin="VCC"/>
</segment>
<segment>
<pinref part="SJ1" gate="1" pin="1"/>
</segment>
</net>
<net name="PA0">
<segment>
<pinref part="R5" gate="G$1" pin="1"/>
<pinref part="IC1" gate="1" pin="(PCINT0/AREF/ADC0)PA0"/>
</segment>
</net>
<net name="R4">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT7/ICP/OC0B/ADC7)PA7"/>
</segment>
<segment>
<pinref part="IC1" gate="1" pin="(PCINT10/INT0/OC0A/CKOUT)PB2"/>
</segment>
<segment>
<pinref part="R4" gate="G$1" pin="2"/>
</segment>
</net>
<net name="D4">
<segment>
<pinref part="D4" gate="1" pin="CATHODE"/>
<pinref part="R4" gate="G$1" pin="1"/>
</segment>
<segment>
<pinref part="U$3" gate="G$1" pin="D+"/>
</segment>
</net>
<net name="C2">
<segment>
<pinref part="D3" gate="1" pin="CATHODE"/>
</segment>
<segment>
<pinref part="R5" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="R1" gate="G$1" pin="1"/>
</segment>
<segment>
<pinref part="U$3" gate="G$1" pin="D-"/>
</segment>
</net>
<net name="R2">
<segment>
<pinref part="R1" gate="G$1" pin="2"/>
</segment>
<segment>
<pinref part="R2" gate="G$1" pin="1"/>
</segment>
</net>
<net name="PB1">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT9/XTAL2)PB1"/>
<pinref part="20MHZ" gate="G$1" pin="1"/>
</segment>
</net>
<net name="PB0">
<segment>
<pinref part="IC1" gate="1" pin="(PCINT8/XTAL1/CLKI)PB0"/>
<pinref part="20MHZ" gate="G$1" pin="3"/>
</segment>
</net>
</nets>
</sheet>
</sheets>
</schematic>
</drawing>
</eagle>
