<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.4.2">
<drawing>
<board>
<plain>
<hole x="157.48" y="58.42" drill="2" locked="yes"/>
<hole x="157.48" y="30.48" drill="2" locked="yes"/>
<hole x="91.44" y="30.48" drill="2" locked="yes"/>
<hole x="91.44" y="58.42" drill="2" locked="yes"/>
<text>Doorbell
Notifier</text>
<text>3V3</text>
<text>GND</text>
<text>A0</text>
<text>A1</text>
<wire x1="88.9" y1="27.94" x2="88.9" y2="60.96" width="0.0762" layer="20"/>
<wire x1="88.9" y1="60.96" x2="160.02" y2="60.96" width="0.0762" layer="20"/>
<wire x1="160.02" y1="60.96" x2="160.02" y2="27.94" width="0.0762" layer="20"/>
<wire x1="160.02" y1="27.94" x2="88.9" y2="27.94" width="0.0762" layer="20"/>
</plain>
<libraries>
<library name="optocoupler">
<description>&lt;b&gt;Opto Couplers&lt;/b&gt;&lt;p&gt;
Siemens, Hewlett-Packard, Texas Instuments, Sharp, Motorola&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL04">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="Particle-Devices">
<description>&lt;h3&gt;Reference foot prints for Particle devices&lt;/h3&gt;
In this library you'll find foot prints to make circuit boards using the Particle devices: Spark Core, Photon and Electron.&lt;br&gt;&lt;br&gt;
There are for reference and you may need to adjust them for your application. See https://docs.particle.io for more details on the recommended layouts for Particle devices.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Designed by Particle. Distributed under a Creative Commons Attribution, Share-Alike license. Development kits based on this library should be distributed under a similar license. Commercial products using this library as a reference design need not comply with this license; further questions can be sent to hello@particle.io. Check license.txt for more information.</description>
<packages>
<package name="ARGON">
<description>&lt;b&gt;ARGON&lt;/b&gt;&lt;p&gt;

Footprint and formfactor based on &lt;a href="https://www.adafruit.com/feather"&gt;Adafruit Feather.&lt;/a&gt;&lt;br&gt;
More information: &lt;a href="https://docs.particle.io/argon/"&gt;https://docs.particle.io/argon/&lt;/a&gt;&lt;/p&gt;
Please pay attention to the keepout areas under the antenna to get good RF performance.</description>
</package>
</packages>
</library>
<library name="con-wago-500">
<description>&lt;b&gt;Wago Screw Clamps&lt;/b&gt;&lt;p&gt;
Grid 5.00 mm&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="W237-4">
<description>&lt;b&gt;WAGO SCREW CLAMP&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Resistors&lt;/h3&gt;
This library contains resistors. Reference designator:R. 
&lt;br&gt;
&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is &lt;b&gt; the end user's responsibility&lt;/b&gt; to ensure correctness and suitablity for a given componet or application. 
&lt;br&gt;
&lt;br&gt;If you enjoy using this library, please buy one of our products at &lt;a href=" www.sparkfun.com"&gt;SparkFun.com&lt;/a&gt;.
&lt;br&gt;
&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;
&lt;br&gt;
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="AXIAL-0.3">
<description>&lt;h3&gt;AXIAL-0.3&lt;/h3&gt;
&lt;p&gt;Commonly used for 1/4W through-hole resistors. 0.3" pitch between holes.&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="OK1" library="optocoupler" package="DIL04" value="PC817">
<attribute name="MF" value=""/>
<attribute name="MPN" value="PC817X4J000F"/>
<attribute name="NAME"/>
<attribute name="OC_FARNELL" value="9707727"/>
<attribute name="OC_NEWARK" value="97K7059"/>
<attribute name="VALUE"/>
</element>
<element name="OK2" library="optocoupler" package="DIL04" value="PC817">
<attribute name="MF" value=""/>
<attribute name="MPN" value="PC817X4J000F"/>
<attribute name="NAME"/>
<attribute name="OC_FARNELL" value="9707727"/>
<attribute name="OC_NEWARK" value="97K7059"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="Particle-Devices" package="ARGON" value="ARGON">
<attribute name="NAME"/>
</element>
<element name="X1" library="con-wago-500" package="W237-4" value="">
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="NAME"/>
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.3" value="1k">
<attribute name="NAME"/>
<attribute name="PROD_ID" value=" "/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="AXIAL-0.3" value="1k">
<attribute name="NAME"/>
<attribute name="PROD_ID" value=" "/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="AXIAL-0.3" value="1k">
<attribute name="NAME"/>
<attribute name="PROD_ID" value=" "/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="AXIAL-0.3" value="1k">
<attribute name="NAME"/>
<attribute name="PROD_ID" value=" "/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="VUSB">
<contactref element="U1" pad="26"/>
</signal>
<signal name="LI+">
<contactref element="U1" pad="28"/>
</signal>
<signal name="N$1">
<contactref element="X1" pad="1"/>
<contactref element="OK1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="U1" pad="2"/>
<contactref element="OK2" pad="4"/>
<contactref element="OK1" pad="4"/>
</signal>
<signal name="N$5">
<contactref element="R2" pad="P$1"/>
<contactref element="U1" pad="6"/>
<contactref element="OK2" pad="3"/>
</signal>
<signal name="N$6">
<contactref element="R1" pad="P$2"/>
<contactref element="R2" pad="P$2"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="N$8">
<contactref element="R1" pad="P$1"/>
<contactref element="U1" pad="5"/>
<contactref element="OK1" pad="3"/>
</signal>
<signal name="N$9">
<contactref element="R3" pad="P$1"/>
<contactref element="X1" pad="2"/>
</signal>
<signal name="N$10">
<contactref element="R4" pad="P$1"/>
<contactref element="X1" pad="4"/>
</signal>
<signal name="N$4">
<contactref element="R4" pad="P$2"/>
<contactref element="OK2" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="R3" pad="P$2"/>
<contactref element="OK1" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="OK2" pad="1"/>
<contactref element="X1" pad="3"/>
</signal>
<signal name="GND">
</signal>
</signals>
</board>
</drawing>
</eagle>
