<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.1">
<drawing>
<board>
<plain>
<text>C4</text>
<text>1</text>
<text>C9</text>
<text>W</text>
<text>D</text>
<text>icked</text>
<text>evice</text>
<text>Air Quality Egg</text>
<wire x1="0" y1="0" x2="0" y2="53.34" width="0" layer="20"/>
<wire x1="0" y1="53.34" x2="47.244" y2="53.34" width="0" layer="20"/>
<wire x1="47.244" y1="53.34" x2="48.768" y2="51.816" width="0" layer="20"/>
<wire x1="48.768" y1="51.816" x2="48.768" y2="40.386" width="0" layer="20"/>
<wire x1="48.768" y1="40.386" x2="51.308" y2="37.846" width="0" layer="20"/>
<wire x1="51.308" y1="37.846" x2="51.308" y2="5.08" width="0" layer="20"/>
<wire x1="51.308" y1="5.08" x2="48.768" y2="2.54" width="0" layer="20"/>
<wire x1="48.768" y1="2.54" x2="48.768" y2="0" width="0" layer="20"/>
<wire x1="48.768" y1="0" x2="0" y2="0" width="0" layer="20"/>
<text>2.4V</text>
<text>1.7V</text>
<text>Sensor Interface Shield v1.2</text>
</plain>
<libraries>
<library name="SparkFun">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
We've spent an enormous amount of time creating and checking these footprints and parts. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="0805">
</package>
<package name="0603-CAP">
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt;</description>
</package>
<package name="STAND-OFF">
<description>&lt;b&gt;Stand Off&lt;/b&gt;&lt;p&gt;
This is the mechanical footprint for a #4 phillips button head screw. Use the keepout ring to avoid running the screw head into surrounding components. SKU : PRT-00447</description>
</package>
</packages>
</library>
<library name="wicked-device">
<packages>
<package name="TYPE-B_ALUMINUM_CAN">
</package>
<package name="SO8">
</package>
<package name="1775470-4">
</package>
<package name="PLANE_COUPLER">
</package>
<package name="SOT-23-3">
</package>
</packages>
</library>
<library name="ricardo">
<packages>
<package name="SR-4">
</package>
<package name="1X04_LOCK">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="ARDUINO-NOHOLE">
</package>
<package name="CHIPLED_0805">
<description>&lt;b&gt;CHIPLED&lt;/b&gt;&lt;p&gt;
Source: http://www.osram.convergy.de/ ... LG_R971.pdf</description>
</package>
</packages>
</library>
<library name="testpad">
<description>&lt;b&gt;Test Pins/Pads&lt;/b&gt;&lt;p&gt;
Cream on SMD OFF.&lt;br&gt;
new: Attribute TP_SIGNAL_NAME&lt;br&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="P1-13">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-AnalogIC">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find all manner of analog ICs- DACs, ADCs, video chips, op-amps, and others.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="SO014">
</package>
</packages>
</library>
<library name="axeio-SparkFun">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
We've spent an enormous amount of time creating and checking these footprints and parts. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="TQFP32-08">
<description>&lt;B&gt;Thin Plasic Quad Flat Package&lt;/B&gt; Grid 0.8 mm</description>
</package>
</packages>
</library>
<library name="nanodeRF_11">
<packages>
<package name="RCL_R0805">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C3" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="wicked-device" package="TYPE-B_ALUMINUM_CAN" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="N02" library="ricardo" package="SR-4" value="E2V">
<attribute name="NAME"/>
</element>
<element name="R1" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun" package="0805" value="1.8MOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="SparkFun" package="SOT23-5" value="V_REG_LDOSMD">
<attribute name="NAME"/>
</element>
<element name="R2" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="wicked-device" package="TYPE-B_ALUMINUM_CAN" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="R7" library="SparkFun" package="0805" value="750kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U2" library="SparkFun" package="SOT23-5" value="V_REG_LDOSMD">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CO" library="ricardo" package="SR-4" value="E2V">
<attribute name="NAME"/>
</element>
<element name="R6" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="DHT22" library="ricardo" package="1X04_LOCK" value="RHT03">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$7" library="adafruit" package="ARDUINO-NOHOLE" value="ARDUINO-NOHOLE"/>
<element name="C1" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="I2CMUX" library="wicked-device" package="SO8" value="PCA9540BD">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R11" library="SparkFun" package="0805" value="10kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R12" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R13" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="TP1" library="testpad" package="P1-13" value="TPPAD1-13">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="TP2" library="testpad" package="P1-13" value="TPPAD1-13">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="BUS1.1" library="wicked-device" package="1775470-4" value="4-PIN-SMT">
<attribute name="NAME"/>
</element>
<element name="BUS1.2" library="wicked-device" package="1775470-4" value="4-PIN-SMT">
<attribute name="NAME"/>
</element>
<element name="BUS2.2" library="wicked-device" package="1775470-4" value="4-PIN-SMT">
<attribute name="NAME"/>
</element>
<element name="BUS2.1" library="wicked-device" package="1775470-4" value="4-PIN-SMT">
<attribute name="NAME"/>
</element>
<element name="JP3" library="SparkFun" package="STAND-OFF" value="STAND-OFF"/>
<element name="R14" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R15" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R16" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R17" library="SparkFun" package="0805" value="1.8kOhm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U3" library="SparkFun-AnalogIC" package="SO014" value="MCP42XXX">
<attribute name="NAME"/>
</element>
<element name="R18" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R19" library="SparkFun" package="0805" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MCU" library="axeio-SparkFun" package="TQFP32-08" value="ATTINY4832A">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$13" library="wicked-device" package="PLANE_COUPLER" value="PLANE_COUPLER"/>
<element name="U$14" library="wicked-device" package="PLANE_COUPLER" value="PLANE_COUPLER"/>
<element name="C10" library="SparkFun" package="0603-CAP" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="L1" library="nanodeRF_11" package="RCL_R0805" value="FERRITE">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="INFO" library="adafruit" package="CHIPLED_0805" value="GREEN">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun" package="0805" value="270ohm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="PWR" library="adafruit" package="CHIPLED_0805" value="RED">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="SparkFun" package="0805" value="470ohm">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="VCC2_5" library="wicked-device" package="SOT-23-3" value="AP7333SA">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C11" library="SparkFun" package="0603-CAP" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C12" library="SparkFun" package="0603-CAP" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="C3" pad="1"/>
<contactref element="C4" pad="P$2"/>
<contactref element="R4" pad="1"/>
<contactref element="U1" pad="2"/>
<contactref element="C8" pad="1"/>
<contactref element="C9" pad="P$2"/>
<contactref element="R7" pad="1"/>
<contactref element="U2" pad="2"/>
<contactref element="DHT22" pad="GND"/>
<contactref element="U$7" pad="GND"/>
<contactref element="C1" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="I2CMUX" pad="6"/>
<contactref element="C5" pad="1"/>
<contactref element="BUS1.1" pad="4"/>
<contactref element="BUS2.1" pad="4"/>
<contactref element="BUS1.2" pad="4"/>
<contactref element="BUS2.2" pad="4"/>
<contactref element="U3" pad="4"/>
<contactref element="C7" pad="1"/>
<contactref element="C6" pad="2"/>
<contactref element="MCU" pad="5"/>
<contactref element="U$14" pad="1"/>
<contactref element="INFO" pad="C"/>
<contactref element="PWR" pad="C"/>
</signal>
<signal name="CO_RH-">
<contactref element="U3" pad="6"/>
<contactref element="R7" pad="2"/>
<contactref element="U2" pad="4"/>
</signal>
<signal name="NO2_RH-">
<contactref element="U3" pad="9"/>
<contactref element="R4" pad="2"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="NO2_HEATER_V">
<contactref element="N02" pad="FIGSIG/E2VH+"/>
<contactref element="C4" pad="P$1"/>
<contactref element="U1" pad="5"/>
<contactref element="TP1" pad="TP"/>
<contactref element="U3" pad="7"/>
</signal>
<signal name="CO_HEATER_V">
<contactref element="CO" pad="FIGSIG/E2VH+"/>
<contactref element="C9" pad="P$1"/>
<contactref element="U2" pad="5"/>
<contactref element="TP2" pad="TP"/>
<contactref element="U3" pad="8"/>
</signal>
<signal name="/R1_SEL">
<contactref element="R6" pad="1"/>
<contactref element="R9" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="2"/>
<contactref element="MCU" pad="20"/>
</signal>
<signal name="/R2_SEL">
<contactref element="R9" pad="1"/>
<contactref element="R10" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="MCU" pad="19"/>
</signal>
<signal name="3V">
<contactref element="U$7" pad="3V"/>
</signal>
<signal name="VIN">
<contactref element="U$7" pad="VIN"/>
</signal>
<signal name="N$4">
<contactref element="U$7" pad="AREF"/>
<contactref element="C1" pad="2"/>
</signal>
<signal name="/RESET">
<contactref element="U$7" pad="RESET"/>
<contactref element="MCU" pad="29"/>
</signal>
<signal name="NO2_SENSE">
<contactref element="N02" pad="FIGV+/E2VSIG"/>
<contactref element="R1" pad="2"/>
<contactref element="MCU" pad="23"/>
</signal>
<signal name="CO_SENSE">
<contactref element="CO" pad="FIGV+/E2VSIG"/>
<contactref element="R6" pad="2"/>
<contactref element="MCU" pad="25"/>
</signal>
<signal name="SDA">
<contactref element="U$7" pad="A4"/>
<contactref element="I2CMUX" pad="2"/>
<contactref element="R12" pad="1"/>
<contactref element="MCU" pad="27"/>
</signal>
<signal name="SCL">
<contactref element="U$7" pad="A5"/>
<contactref element="I2CMUX" pad="1"/>
<contactref element="R13" pad="1"/>
<contactref element="MCU" pad="28"/>
</signal>
<signal name="SDA0">
<contactref element="I2CMUX" pad="4"/>
<contactref element="BUS1.1" pad="2"/>
<contactref element="BUS1.2" pad="2"/>
<contactref element="R14" pad="1"/>
</signal>
<signal name="SCL0">
<contactref element="I2CMUX" pad="5"/>
<contactref element="BUS1.1" pad="1"/>
<contactref element="BUS1.2" pad="1"/>
<contactref element="R15" pad="1"/>
</signal>
<signal name="SCL1">
<contactref element="I2CMUX" pad="8"/>
<contactref element="BUS2.2" pad="1"/>
<contactref element="BUS2.1" pad="1"/>
<contactref element="R17" pad="1"/>
</signal>
<signal name="SDA1">
<contactref element="I2CMUX" pad="7"/>
<contactref element="BUS2.2" pad="2"/>
<contactref element="BUS2.1" pad="2"/>
<contactref element="R16" pad="1"/>
</signal>
<signal name="DHT22_IO">
<contactref element="U$7" pad="D2"/>
<contactref element="DHT22" pad="DATA"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="SCK">
<contactref element="U$7" pad="D13"/>
</signal>
<signal name="MISO">
<contactref element="U$7" pad="D12"/>
</signal>
<signal name="MOSI">
<contactref element="U$7" pad="D11"/>
</signal>
<signal name="/POT_CS">
<contactref element="U3" pad="1"/>
<contactref element="MCU" pad="32"/>
</signal>
<signal name="NO2_FEEDBACK">
<contactref element="N02" pad="FIGV+/E2V-"/>
<contactref element="R18" pad="2"/>
<contactref element="MCU" pad="24"/>
</signal>
<signal name="CO_FEEDBACK">
<contactref element="CO" pad="FIGV+/E2V-"/>
<contactref element="R19" pad="2"/>
<contactref element="MCU" pad="26"/>
</signal>
<signal name="AVCC">
<contactref element="MCU" pad="18"/>
<contactref element="MCU" pad="18"/>
<contactref element="C10" pad="1"/>
<contactref element="L1" pad="1"/>
</signal>
<signal name="NO2_OPERATING_V">
<contactref element="N02" pad="FIGG/E2VS+"/>
<contactref element="VCC2_5" pad="2"/>
<contactref element="C12" pad="1"/>
</signal>
<signal name="5V">
<contactref element="CO" pad="FIGG/E2VS+"/>
<contactref element="C8" pad="2"/>
<contactref element="U2" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="U1" pad="1"/>
<contactref element="R11" pad="1"/>
<contactref element="DHT22" pad="VDD"/>
<contactref element="C2" pad="2"/>
<contactref element="BUS1.1" pad="3"/>
<contactref element="BUS2.1" pad="3"/>
<contactref element="BUS1.2" pad="3"/>
<contactref element="BUS2.2" pad="3"/>
<contactref element="U3" pad="14"/>
<contactref element="C7" pad="2"/>
<contactref element="U3" pad="12"/>
<contactref element="I2CMUX" pad="3"/>
<contactref element="C5" pad="2"/>
<contactref element="R12" pad="2"/>
<contactref element="R13" pad="2"/>
<contactref element="R14" pad="2"/>
<contactref element="R15" pad="2"/>
<contactref element="R16" pad="2"/>
<contactref element="R17" pad="2"/>
<contactref element="U$7" pad="5V"/>
<contactref element="MCU" pad="4"/>
<contactref element="L1" pad="2"/>
<contactref element="C6" pad="1"/>
</signal>
<signal name="MOSI_B">
<contactref element="U3" pad="3"/>
<contactref element="MCU" pad="15"/>
</signal>
<signal name="MISO_B">
<contactref element="U3" pad="13"/>
<contactref element="MCU" pad="16"/>
</signal>
<signal name="SCK_B">
<contactref element="U3" pad="2"/>
<contactref element="MCU" pad="17"/>
</signal>
<signal name="NO2_HEATER_EN">
<contactref element="U1" pad="3"/>
<contactref element="MCU" pad="30"/>
</signal>
<signal name="CO_HEATER_EN">
<contactref element="U2" pad="3"/>
</signal>
<signal name="AGND">
<contactref element="U$13" pad="1"/>
<contactref element="MCU" pad="21"/>
<contactref element="C10" pad="2"/>
<contactref element="R10" pad="1"/>
<contactref element="R19" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="R18" pad="1"/>
<contactref element="C11" pad="2"/>
<contactref element="C12" pad="2"/>
<contactref element="VCC2_5" pad="3"/>
</signal>
<signal name="RETURN_GND">
<contactref element="U$13" pad="2"/>
<contactref element="U$14" pad="2"/>
<contactref element="U$7" pad="GND2"/>
<contactref element="U$7" pad="GND1"/>
</signal>
<signal name="STATUS">
<contactref element="MCU" pad="13"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="POWER">
<contactref element="MCU" pad="14"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="R5" pad="1"/>
<contactref element="INFO" pad="A"/>
</signal>
<signal name="N$3">
<contactref element="R8" pad="1"/>
<contactref element="PWR" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="VCC2_5" pad="1"/>
<contactref element="C11" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
