<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="12" y1="28" x2="53" y2="28" width="0" layer="20"/>
<wire x1="53" y1="28" x2="53" y2="75" width="0" layer="20"/>
<wire x1="53" y1="75" x2="12" y2="75" width="0" layer="20"/>
<wire x1="12" y1="75" x2="12" y2="28" width="0" layer="20"/>
<wire x1="12" y1="75" x2="12" y2="28" width="0.8" layer="46"/>
<wire x1="12" y1="28" x2="53" y2="28" width="0.8" layer="46"/>
<wire x1="53" y1="28" x2="53" y2="75" width="0.8" layer="46"/>
<wire x1="53" y1="75" x2="12" y2="75" width="0.8" layer="46"/>
</plain>
<libraries>
<library name="fab">
<packages>
<package name="SOIC14">
<description>&lt;b&gt;Small Outline Package&lt;/b&gt;</description>
</package>
<package name="R1206FAB">
</package>
<package name="EFOBM">
</package>
<package name="1X06SMD">
</package>
<package name="2X03SMD">
</package>
<package name="SPDTSWITCH">
</package>
</packages>
</library>
<library name="nrf24">
<packages>
<package name="NRF">
</package>
</packages>
</library>
<library name="parts">
<description>&lt;h1&gt;Impedance Spectrometer Parts&lt;/h1&gt;

This library contains parts used for the Impedance Spectrometer project that are not part of the standard EAGLE libraries:

&lt;ul&gt;
    &lt;li&gt;&lt;b&gt;23LCV1024&lt;/b&gt; - 1 Mbit SPI Serial SRAM with Battery Backup and SDI Interface&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;AD5933&lt;/b&gt; - Impedance Converter chip (from &lt;a href="https://github.com/kblomqvist/kblom-eagle-lbr"&gt;kblomqvist on GitHub&lt;/a&gt;)&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;AD8615&lt;/b&gt; - Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifier&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;ADG704&lt;/b&gt; - CMOS Low Voltage 4 Ω, 4-Channel Multiplexer&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;ADG706&lt;/b&gt; - CMOS, +1.8 V to +5.5 V/±2.5 V, 2.5 Ω Low-Voltage, 8-/16-Channel Multiplexers&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;AT25DF081A&lt;/b&gt; - 8-MBit 2.7V Minimum Serial Peripheral Interface Serial Flash Memory&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;DP83848&lt;/b&gt; - PHYTER Industrial Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver (adapted from &lt;code&gt;national-semiconductor.lbr&lt;/code&gt;)&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;M24C08&lt;/b&gt; - 8-Kbit serial I²C bus EEPROM&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;MAX4781&lt;/b&gt; - High-Speed, Low-Voltage, 0.7 Ω CMOS Analog Switches/Multiplexers&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;MIC2005A-1&lt;/b&gt; - 0.5A Current Limiting Power Distribution Switch&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;PINHD-2X25&lt;/b&gt; - 2x25 pin header with first pin marker&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;SI-60062-F&lt;/b&gt; - MagJack 10/100 Base-T Ethernet connector&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;SST25VF080B&lt;/b&gt; - 8 MBit SPI Serial Flash&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;TC1262&lt;/b&gt; - 500mA Fixed Output CMOS LDO&lt;/li&gt;
    &lt;li&gt;&lt;b&gt;USB-2410-06&lt;/b&gt; - Lumberg 2410 06 USB-A connector&lt;/li&gt;
&lt;/ul&gt;</description>
<packages>
<package name="TSOT23-5">
<description>&lt;b&gt;5-Lead TSOT-23&lt;/b&gt;&lt;p&gt;</description>
</package>
</packages>
</library>
<library name="con-molex">
<description>&lt;b&gt;Molex Connectors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="22-23-2031">
<description>.100" (2.54mm) Center Header - 3 Pin</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="SML1206">
<description>&lt;b&gt;SML10XXKH-TR (HIGH INTENSITY) LED&lt;/b&gt;&lt;p&gt;
&lt;table&gt;
&lt;tr&gt;&lt;td&gt;SML10R3KH-TR&lt;/td&gt;&lt;td&gt;ULTRA RED&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10E3KH-TR&lt;/td&gt;&lt;td&gt;SUPER REDSUPER BLUE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10O3KH-TR&lt;/td&gt;&lt;td&gt;SUPER ORANGE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10PY3KH-TR&lt;/td&gt;&lt;td&gt;PURE YELLOW&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10OY3KH-TR&lt;/td&gt;&lt;td&gt;ULTRA YELLOW&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10AG3KH-TR&lt;/td&gt;&lt;td&gt;AQUA GREEN&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10BG3KH-TR&lt;/td&gt;&lt;td&gt;BLUE GREEN&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10PB1KH-TR&lt;/td&gt;&lt;td&gt;SUPER BLUE&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td&gt;SML10CW1KH-TR&lt;/td&gt;&lt;td&gt;WHITE&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

Source: http://www.ledtronics.com/ds/smd-1206/dstr0094.PDF</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="fab" package="SOIC14" value="ATTINY44-SSU"/>
<element name="NRF24L1" library="nrf24" package="NRF" value=""/>
<element name="R-DIV1" library="fab" package="R1206FAB" value="499"/>
<element name="R-DIV2" library="fab" package="R1206FAB" value="10k"/>
<element name="R-DIV3" library="fab" package="R1206FAB" value="10k"/>
<element name="R-DIV4" library="fab" package="R1206FAB" value="499"/>
<element name="R1" library="fab" package="R1206FAB" value="1k"/>
<element name="R10" library="fab" package="R1206FAB" value="5k"/>
<element name="R11" library="fab" package="R1206FAB" value="10k"/>
<element name="R2" library="fab" package="R1206FAB" value="5k"/>
<element name="R3" library="fab" package="R1206FAB" value="10k"/>
<element name="R4" library="fab" package="R1206FAB" value="5k"/>
<element name="R5" library="fab" package="R1206FAB" value="1k"/>
<element name="R6" library="fab" package="R1206FAB" value="10k"/>
<element name="R7" library="fab" package="R1206FAB" value="1k"/>
<element name="R8" library="fab" package="R1206FAB" value="10k"/>
<element name="R9" library="fab" package="R1206FAB" value="1k"/>
<element name="U$2" library="fab" package="EFOBM" value="RESONATOR"/>
<element name="U$3" library="fab" package="1X06SMD" value="FTDI-SMD-HEADER"/>
<element name="U1" library="parts" package="TSOT23-5" value="AD8615AUJ">
<attribute name="RS" value="796-8925"/>
</element>
<element name="U2" library="parts" package="TSOT23-5" value="AD8615AUJ">
<attribute name="RS" value="796-8925"/>
</element>
<element name="X1" library="con-molex" package="22-23-2031" value="22-23-2031">
<attribute name="OC_FARNELL" value="1462950"/>
<attribute name="MF" value="MOLEX"/>
<attribute name="MPN" value="22-23-2031"/>
<attribute name="OC_NEWARK" value="30C0862"/>
</element>
<element name="LED1" library="led" package="SML1206" value=""/>
<element name="R12" library="fab" package="R1206FAB" value="499"/>
<element name="U$1" library="fab" package="2X03SMD" value="AVRISPSMD"/>
<element name="U$4" library="fab" package="SPDTSWITCH" value="SPDTSWITCH"/>
</elements>
<signals>
<signal name="VCC">
<contactref element="U1" pad="5"/>
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="R4" pad="2"/>
<contactref element="U$3" pad="3"/>
<contactref element="X1" pad="1"/>
<contactref element="U$1" pad="2"/>
<contactref element="U2" pad="5"/>
<contactref element="R10" pad="2"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="R-DIV2" pad="2"/>
<contactref element="R5" pad="2"/>
<contactref element="U1" pad="1"/>
</signal>
<signal name="GND">
<contactref element="U1" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="R-DIV1" pad="1"/>
<contactref element="IC1" pad="14"/>
<contactref element="U$2" pad="2"/>
<contactref element="U2" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="R-DIV4" pad="1"/>
<contactref element="U$3" pad="1"/>
<contactref element="NRF24L1" pad="P$1"/>
<contactref element="X1" pad="2"/>
<contactref element="R12" pad="1"/>
<contactref element="U$1" pad="6"/>
<contactref element="U$4" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R-DIV2" pad="1"/>
<contactref element="U1" pad="3"/>
<contactref element="R-DIV1" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="CLOCK">
<contactref element="R6" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="N$1">
<contactref element="U1" pad="4"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="CLOCK-IN">
<contactref element="U$4" pad="2"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="RESET">
<contactref element="R4" pad="1"/>
<contactref element="IC1" pad="4"/>
<contactref element="U$1" pad="5"/>
</signal>
<signal name="MOSI">
<contactref element="NRF24L1" pad="6"/>
<contactref element="LED1" pad="A"/>
<contactref element="IC1" pad="7"/>
<contactref element="U$1" pad="4"/>
</signal>
<signal name="MISO">
<contactref element="NRF24L1" pad="7"/>
<contactref element="IC1" pad="8"/>
<contactref element="U$1" pad="1"/>
</signal>
<signal name="SCK">
<contactref element="NRF24L1" pad="5"/>
<contactref element="IC1" pad="9"/>
<contactref element="U$1" pad="3"/>
</signal>
<signal name="X1">
<contactref element="IC1" pad="3"/>
<contactref element="U$2" pad="1"/>
</signal>
<signal name="X2">
<contactref element="IC1" pad="2"/>
<contactref element="U$2" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="R-DIV3" pad="2"/>
<contactref element="R7" pad="2"/>
<contactref element="U2" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="R-DIV3" pad="1"/>
<contactref element="U2" pad="3"/>
<contactref element="R-DIV4" pad="2"/>
<contactref element="R10" pad="1"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="DATA">
<contactref element="R8" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="IC1" pad="11"/>
</signal>
<signal name="N$9">
<contactref element="U2" pad="4"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="DATA-IN">
<contactref element="U$4" pad="3"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="TXD">
<contactref element="IC1" pad="13"/>
<contactref element="U$3" pad="4"/>
</signal>
<signal name="RXD">
<contactref element="IC1" pad="12"/>
<contactref element="U$3" pad="5"/>
</signal>
<signal name="3V">
<contactref element="NRF24L1" pad="2"/>
<contactref element="X1" pad="3"/>
</signal>
<signal name="CE">
<contactref element="NRF24L1" pad="3"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="CSN">
<contactref element="NRF24L1" pad="4"/>
<contactref element="IC1" pad="10"/>
</signal>
<signal name="N$2">
<contactref element="LED1" pad="C"/>
<contactref element="R12" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
