<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.6.0">
<drawing>
<board>
<plain>
<wire x1="149.86" y1="50.8" x2="149.86" y2="43.18" width="0" layer="20"/>
<wire x1="149.86" y1="38.1" x2="149.86" y2="15.24" width="0" layer="20"/>
<wire x1="149.86" y1="10.16" x2="149.86" y2="2.54" width="0" layer="20"/>
<wire x1="147.32" y1="0" x2="86.36" y2="0" width="0" layer="20"/>
<wire x1="63.5" y1="22.86" x2="63.5" y2="50.8" width="0" layer="20"/>
<wire x1="66.04" y1="53.34" x2="147.32" y2="53.34" width="0" layer="20"/>
<wire x1="147.32" y1="0" x2="149.86" y2="2.54" width="0" layer="20" curve="90"/>
<wire x1="149.86" y1="50.8" x2="147.32" y2="53.34" width="0" layer="20" curve="90"/>
<wire x1="66.04" y1="53.34" x2="63.5" y2="50.8" width="0" layer="20" curve="90"/>
<wire x1="70.8025" y1="15.5575" x2="63.5" y2="22.86" width="0" layer="20"/>
<wire x1="79.0575" y1="7.3025" x2="86.36" y2="0" width="0" layer="20"/>
<wire x1="79.0575" y1="7.3025" x2="71.4375" y2="-0.3175" width="0" layer="20"/>
<wire x1="71.4375" y1="-0.3175" x2="63.1825" y2="7.9375" width="0" layer="20"/>
<wire x1="63.1825" y1="7.9375" x2="70.8025" y2="15.5575" width="0" layer="20"/>
<wire x1="115.57" y1="50.8" x2="116.84" y2="49.53" width="0" layer="20" curve="-90"/>
<wire x1="116.84" y1="49.53" x2="115.57" y2="48.26" width="0" layer="20" curve="-90"/>
<wire x1="97.79" y1="48.26" x2="96.52" y2="49.53" width="0" layer="20" curve="-90"/>
<wire x1="96.52" y1="49.53" x2="97.79" y2="50.8" width="0" layer="20" curve="-90"/>
<wire x1="115.57" y1="48.26" x2="97.79" y2="48.26" width="0" layer="20"/>
<wire x1="97.79" y1="50.8" x2="115.57" y2="50.8" width="0" layer="20"/>
<wire x1="115.57" y1="5.08" x2="116.84" y2="3.81" width="0" layer="20" curve="-90"/>
<wire x1="116.84" y1="3.81" x2="115.57" y2="2.54" width="0" layer="20" curve="-90"/>
<wire x1="97.79" y1="2.54" x2="96.52" y2="3.81" width="0" layer="20" curve="-90"/>
<wire x1="96.52" y1="3.81" x2="97.79" y2="5.08" width="0" layer="20" curve="-90"/>
<wire x1="115.57" y1="2.54" x2="97.79" y2="2.54" width="0" layer="20"/>
<wire x1="97.79" y1="5.08" x2="115.57" y2="5.08" width="0" layer="20"/>
<wire x1="165.1" y1="50.8" x2="165.1" y2="2.54" width="0" layer="20"/>
<wire x1="152.4" y1="2.54" x2="152.4" y2="10.16" width="0" layer="20"/>
<wire x1="152.4" y1="15.24" x2="152.4" y2="38.1" width="0" layer="20"/>
<wire x1="152.4" y1="43.18" x2="152.4" y2="50.8" width="0" layer="20"/>
<text>GND</text>
<text>SWC</text>
<text>SWD</text>
<text>D27</text>
<text>AREF</text>
<text>GND</text>
<text>A0DA</text>
<text>A1</text>
<text>A2</text>
<text>A3</text>
<text>A4</text>
<text>A5</text>
<text>Reset</text>
<text>R</text>
<text>+</text>
<text>CR2032</text>
<text>Vcc-Gnd-Scl-Sda</text>
<text>Rx-Tx-Gnd-Vcc</text>
<text>&gt;</text>
<text>*</text>
<text>&lt;</text>
<wire x1="149.86" y1="10.16" x2="152.4" y2="10.16" width="0" layer="20"/>
<wire x1="149.86" y1="15.24" x2="152.4" y2="15.24" width="0" layer="20"/>
<wire x1="149.86" y1="43.18" x2="152.4" y2="43.18" width="0" layer="20"/>
<wire x1="149.86" y1="38.1" x2="152.4" y2="38.1" width="0" layer="20"/>
<text>PYcARD
(Jean Luc)</text>
<text>PYcARD
(Jean Luc)</text>
<text>BOBRICIUS
(Made in Slovakia)</text>
<text>Peter Misenko
(Slovakia)
Indie developer</text>
<text>Peter Misenko
(Slovakia)
Indie developer</text>
<hole x="150.114" y="42.672" drill="0.5"/>
<hole x="150.114" y="41.656" drill="0.5"/>
<hole x="150.114" y="40.64" drill="0.5"/>
<hole x="150.114" y="39.624" drill="0.5"/>
<hole x="150.114" y="38.608" drill="0.5"/>
<hole x="152.146" y="42.672" drill="0.5"/>
<hole x="152.146" y="41.656" drill="0.5"/>
<hole x="152.146" y="40.64" drill="0.5"/>
<hole x="152.146" y="39.624" drill="0.5"/>
<hole x="152.146" y="38.608" drill="0.5"/>
<hole x="150.114" y="14.732" drill="0.5"/>
<hole x="150.114" y="13.716" drill="0.5"/>
<hole x="150.114" y="12.7" drill="0.5"/>
<hole x="150.114" y="11.684" drill="0.5"/>
<hole x="150.114" y="10.668" drill="0.5"/>
<hole x="152.146" y="14.732" drill="0.5"/>
<hole x="152.146" y="13.716" drill="0.5"/>
<hole x="152.146" y="12.7" drill="0.5"/>
<hole x="152.146" y="11.684" drill="0.5"/>
<hole x="152.146" y="10.668" drill="0.5"/>
<text>CS(13)</text>
<text>MOSI</text>
<text>+3.3V</text>
<text>SCK</text>
<text>GND</text>
<text>MISO</text>
<text>(PYTHON - ARDUINO CARD)</text>
<text>SHT21</text>
<text>Speaker</text>
<wire x1="152.4" y1="50.8" x2="154.94" y2="53.34" width="0" layer="20" curve="-90"/>
<wire x1="154.94" y1="53.34" x2="162.56" y2="53.34" width="0" layer="20"/>
<wire x1="162.56" y1="53.34" x2="165.1" y2="50.8" width="0" layer="20" curve="-90"/>
<wire x1="165.1" y1="2.54" x2="162.56" y2="0" width="0" layer="20" curve="-90"/>
<wire x1="162.56" y1="0" x2="154.94" y2="0" width="0" layer="20"/>
<wire x1="154.94" y1="0" x2="152.4" y2="2.54" width="0" layer="20" curve="-90"/>
<text>BOBRICIUS
(Made in Slovakia)</text>
<text>DS3231</text>
<text>BME280</text>
<text>JTAG</text>
<text>ANALOG</text>
<text>https://github.com/bobricius
https://hackaday.io/bobricius
https://www.tindie.com/stores/bobricius/
www.linkedin.com/in/bobricius</text>
<text>https://github.com/bobricius
https://hackaday.io/bobricius
https://www.tindie.com/stores/bobricius/
www.linkedin.com/in/bobricius</text>
<text>1u</text>
<text>L</text>
<text>power</text>
<text>-</text>
<text>+</text>
<text>+</text>
<text>0</text>
<text>JEAN-LUC PICARD</text>
</plain>
<libraries>
<library name="SparkFun-LED">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find discrete LEDs for illumination or indication, but no displays.&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; 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="LED-TRICOLOR-SMD">
</package>
</packages>
</library>
<library name="SparkFun-Aesthetics">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find non-functional items- supply symbols, logos, notations, frame blocks, etc.&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; 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="OSHW-LOGO-S">
</package>
</packages>
</library>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find connectors and sockets- basically anything that can be plugged into or onto.&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; 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="1X05_NO_SILK">
<description>No outline in silkscreen</description>
</package>
<package name="USB-A-PCB">
</package>
<package name="1X09_NO_SILK">
<description>&lt;h3&gt;Plated Through Hole -9 Pin No Silk&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:9&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_09&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
<package name="1X06_NO_SILK">
<description>&lt;h3&gt;Plated Through Hole - 6 Pin No Silk Outline&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:6&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_06&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="samd21-temp">
<packages>
<package name="QFN-48">
<description>&lt;h3&gt;48-pin QFN (7x7mm, 0.5mm pitch)&lt;/h3&gt;
&lt;p&gt;Used on:
&lt;ul&gt;&lt;li&gt;ATSAMD21G&lt;/il&gt;&lt;/ul&gt;
&lt;/p&gt;</description>
</package>
<package name="CRYSTAL-32KHZ-SMD_EPSON_MC146">
</package>
</packages>
</library>
<library name="SparkFun-Passives">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&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; 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="0603">
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&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; 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="0603-RES">
</package>
</packages>
</library>
<library name="SparkFun-Electromechanical">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find anything that moves- switches, relays, buttons, potentiometers. Also, anything that goes on a board but isn't electrical in nature- screws, standoffs, etc.&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; 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="TACTILE-SWITCH-SMD">
</package>
</packages>
</library>
<library name="SparkFun">
<packages>
<package name="1X04">
</package>
<package name="SJ_2S-TRACE">
<description>Solder jumper, small, shorted with trace. No paste layer. Trace is cuttable.</description>
</package>
</packages>
</library>
<library name="rc-master-smd">
<packages>
<package name="C0603">
<description>&lt;b&gt;SMD CHIP CAP&lt;/b&gt; - 0603</description>
</package>
</packages>
</library>
<library name="OPL5">
<packages>
<package name="9P-SMD-W-RING">
</package>
</packages>
</library>
<library name="resistor-dil">
<description>&lt;b&gt;Resistors in DIL Packages&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="EXB38V">
<description>&lt;b&gt;Chip Resistor Array 0603x4&lt;/b&gt; 4 resistors in 3.2 mm x 1.6 mm size (EXB38V, V8V)&lt;p&gt;
Source: PANASONIC .. aoc0000ce1.pdf</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="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="Protezione">
<packages>
<package name="CT/CN0603">
<description>&lt;b&gt;EPCOS SMD Varistors, MLV; Standard Series&lt;/b&gt;&lt;p&gt;
Source: www.farnell.com/datasheets/49238.pdf</description>
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="CR2032-THRU">
</package>
<package name="SMT-8585-BUZZER">
</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="TP15SQ">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
<package name="TP17SQ">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="diode">
<description>&lt;b&gt;Diodes&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Motorola : www.onsemi.com
&lt;li&gt;Fairchild : www.fairchildsemi.com
&lt;li&gt;Philips : www.semiconductors.com
&lt;li&gt;Vishay : www.vishay.de
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SOD323-W">
<description>&lt;b&gt;SOD323 Wave soldering&lt;/b&gt; Philips SC01_Mounting_1996.pdf</description>
</package>
</packages>
</library>
<library name="microbuilder">
<description>&lt;h2&gt;&lt;b&gt;microBuilder.eu&lt;/b&gt; Eagle Footprint Library&lt;/h2&gt;

&lt;p&gt;Footprints for common components used in our projects and products.  This is the same library that we use internally, and it is regularly updated.  The newest version can always be found at &lt;b&gt;www.microBuilder.eu&lt;/b&gt;.  If you find this library useful, please feel free to purchase something from our online store. Please also note that all holes are optimised for metric drill bits!&lt;/p&gt;

&lt;h3&gt;Obligatory Warning&lt;/h3&gt;
&lt;p&gt;While it probably goes without saying, there are no guarantees that the footprints or schematic symbols in this library are flawless, and we make no promises of fitness for production, prototyping or any other purpose. These libraries are provided for information puposes only, and are used at your own discretion.  While we make every effort to produce accurate footprints, and many of the items found in this library have be proven in production, we can't make any promises of suitability for a specific purpose. If you do find any errors, though, please feel free to contact us at www.microbuilder.eu to let us know about it so that we can update the library accordingly!&lt;/p&gt;

&lt;h3&gt;License&lt;/h3&gt;
&lt;p&gt;This work is placed in the public domain, and may be freely used for commercial and non-commercial work with the following conditions:&lt;/p&gt;
&lt;p&gt;THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
&lt;/p&gt;</description>
<packages>
<package name="4UCONN_20329_V2">
</package>
<package name="MOUNTINGHOLE_2.0_PLATED">
</package>
<package name="MOUNTINGHOLE_3.0_PLATED_VIAS">
</package>
</packages>
</library>
<library name="xc6206">
<packages>
<package name="SOT23">
</package>
</packages>
</library>
<library name="Sensirion-SHT21">
<packages>
<package name="DFN300X300X110-7N">
</package>
</packages>
</library>
<library name="transistor-small-signal">
<packages>
<package name="SOT23">
<description>&lt;b&gt;SOT-23&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="zak">
<description>Zaks library</description>
<packages>
<package name="SOIC8_150MIL">
</package>
</packages>
</library>
<library name="we-sensor">
<description>Sensors: Temperature, Light, Pressure, Distance...</description>
<packages>
<package name="CAVITY_MEMS">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="L1" library="SparkFun-Passives" package="0603" value="FB - 30Ohm">
<attribute name="PROD_ID" value="RES-07859"/>
</element>
<element name="LOGO3" library="SparkFun-Aesthetics" package="OSHW-LOGO-S" value="OSHW-LOGOS"/>
<element name="R11" library="SparkFun-Resistors" package="0603-RES" value="10K">
<attribute name="PROD_ID" value="RES-00824"/>
</element>
<element name="S1" library="SparkFun-Electromechanical" package="TACTILE-SWITCH-SMD" value="RESET">
<attribute name="PROD_ID" value="SWCH-08247"/>
</element>
<element name="U4" library="samd21-temp" package="QFN-48" value="ATSAMD21G-M"/>
<element name="J1" library="OPL5" package="9P-SMD-W-RING" value="MICRO-SDCARD-CONNECTOR-3300060P1"/>
<element name="I2C4" library="SparkFun" package="1X04" value="">
<attribute name="VALUE"/>
</element>
<element name="C1" library="rc-master-smd" package="C0603" value="15pF"/>
<element name="C2" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C4" library="rc-master-smd" package="C0603" value="1uF"/>
<element name="C6" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C7" library="rc-master-smd" package="C0603" value="15pF"/>
<element name="C8" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C9" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C3" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="C5" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="RN2" library="resistor-dil" package="EXB38V" value="1k5">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="U$6" library="SparkFun-LED" package="LED-TRICOLOR-SMD" value="LED-TRICOLOR"/>
<element name="LED2" library="led" package="CHIPLED_0805" value="">
<attribute name="VALUE"/>
</element>
<element name="S3" library="SparkFun-Electromechanical" package="TACTILE-SWITCH-SMD" value="RESET">
<attribute name="PROD_ID" value="SWCH-08247"/>
</element>
<element name="S4" library="SparkFun-Electromechanical" package="TACTILE-SWITCH-SMD" value="RESET">
<attribute name="PROD_ID" value="SWCH-08247"/>
</element>
<element name="S5" library="SparkFun-Electromechanical" package="TACTILE-SWITCH-SMD" value="RESET">
<attribute name="PROD_ID" value="SWCH-08247"/>
</element>
<element name="JP2" library="SparkFun-Connectors" package="1X05_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="0603-RES" value="10K">
<attribute name="PROD_ID" value="RES-00824"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="0603-RES" value="10K">
<attribute name="PROD_ID" value="RES-00824"/>
</element>
<element name="Z5" library="Protezione" package="CT/CN0603" value="CG0603MLC-05E">
<attribute name="CASE" value=""/>
<attribute name="PRICE" value="_____"/>
<attribute name="SUPPLIER" value="_____"/>
<attribute name="TYPE" value="Protezione"/>
<attribute name="MONTHLY_USAGE" value="_____"/>
<attribute name="PART_NUMBER" value="BRNCG0603MLC-05E"/>
</element>
<element name="Z6" library="Protezione" package="CT/CN0603" value="CG0603MLC-05E">
<attribute name="CASE" value=""/>
<attribute name="PRICE" value="_____"/>
<attribute name="SUPPLIER" value="_____"/>
<attribute name="TYPE" value="Protezione"/>
<attribute name="MONTHLY_USAGE" value="_____"/>
<attribute name="PART_NUMBER" value="BRNCG0603MLC-05E"/>
</element>
<element name="JP3" library="SparkFun-Connectors" package="USB-A-PCB" value="USBPCB"/>
<element name="U$1" library="adafruit" package="CR2032-THRU" value="">
<attribute name="VALUE"/>
</element>
<element name="TP1" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP2" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP3" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP4" library="testpad" package="TP17SQ" value="TPTP17SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP5" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP6" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP7" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP8" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP9" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP10" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="TP11" library="testpad" package="TP15SQ" value="TPTP15SQ">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="Y2" library="samd21-temp" package="CRYSTAL-32KHZ-SMD_EPSON_MC146" value="32.768kHz"/>
<element name="I2C1" library="SparkFun" package="1X04" value="">
<attribute name="VALUE"/>
</element>
<element name="D1" library="diode" package="SOD323-W" value="">
<attribute name="VALUE"/>
</element>
<element name="X6" library="microbuilder" package="4UCONN_20329_V2" value="microUSB"/>
<element name="J3" library="SparkFun-Connectors" package="1X09_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="U$31" library="microbuilder" package="MOUNTINGHOLE_3.0_PLATED_VIAS" value="MOUNTINGHOLE">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$32" library="microbuilder" package="MOUNTINGHOLE_3.0_PLATED_VIAS" value="MOUNTINGHOLE">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="J2" library="SparkFun-Connectors" package="1X06_NO_SILK" value="">
<attribute name="VALUE"/>
</element>
<element name="U2" library="xc6206" package="SOT23" value="MCP1703T-3302E/CB"/>
<element name="D2" library="diode" package="SOD323-W" value="">
<attribute name="VALUE"/>
</element>
<element name="U1" library="Sensirion-SHT21" package="DFN300X300X110-7N" value="SHT21">
<attribute name="PACKAGE" value="DFN-6"/>
<attribute name="OC_FARNELL" value="1855468"/>
<attribute name="SUPPLIER" value="SENSIRION"/>
<attribute name="MPN" value="SHT21"/>
<attribute name="OC_NEWARK" value="20T1172"/>
</element>
<element name="Q1" library="transistor-small-signal" package="SOT23" value="BSS123"/>
<element name="U$2" library="adafruit" package="SMT-8585-BUZZER" value="BUZZER"/>
<element name="U$4" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$5" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$7" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U3" library="zak" package="SOIC8_150MIL" value="DS3231"/>
<element name="IC1" library="we-sensor" package="CAVITY_MEMS" value="BME280"/>
<element name="C10" library="rc-master-smd" package="C0603" value="100nF"/>
<element name="JUMPER2" library="SparkFun" package="SJ_2S-TRACE" value="SOLDERJUMPERTRACE"/>
</elements>
<signals>
<signal name="GND">
<contactref element="U4" pad="42"/>
<contactref element="U4" pad="35"/>
<contactref element="U4" pad="18"/>
<contactref element="U4" pad="5"/>
<contactref element="S1" pad="1"/>
<contactref element="J1" pad="6"/>
<contactref element="I2C4" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="C7" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="LED2" pad="C"/>
<contactref element="S3" pad="1"/>
<contactref element="S4" pad="1"/>
<contactref element="S5" pad="1"/>
<contactref element="JP2" pad="1"/>
<contactref element="Z5" pad="2"/>
<contactref element="Z6" pad="2"/>
<contactref element="JP3" pad="GND"/>
<contactref element="U$1" pad="-"/>
<contactref element="S5" pad="2"/>
<contactref element="S4" pad="2"/>
<contactref element="S3" pad="2"/>
<contactref element="S1" pad="2"/>
<contactref element="I2C1" pad="2"/>
<contactref element="X6" pad="BASE@1"/>
<contactref element="X6" pad="SPRT@1"/>
<contactref element="X6" pad="GND"/>
<contactref element="X6" pad="SPRT@4"/>
<contactref element="X6" pad="SPRT@2"/>
<contactref element="X6" pad="SPRT@3"/>
<contactref element="X6" pad="BASE@2"/>
<contactref element="J3" pad="7"/>
<contactref element="J2" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="U2" pad="1"/>
<contactref element="U1" pad="2"/>
<contactref element="Q1" pad="2"/>
<contactref element="U3" pad="5"/>
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="7"/>
<contactref element="C10" pad="2"/>
</signal>
<signal name="3.3V">
<contactref element="R11" pad="2"/>
<contactref element="U4" pad="44"/>
<contactref element="L1" pad="1"/>
<contactref element="U4" pad="36"/>
<contactref element="U4" pad="17"/>
<contactref element="C2" pad="1"/>
<contactref element="C8" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="U$6" pad="A"/>
<contactref element="J1" pad="4"/>
<contactref element="I2C4" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="JP2" pad="2"/>
<contactref element="I2C1" pad="1"/>
<contactref element="D1" pad="C"/>
<contactref element="J2" pad="4"/>
<contactref element="D2" pad="C"/>
<contactref element="U1" pad="5"/>
<contactref element="U$2" pad="+"/>
<contactref element="U3" pad="2"/>
<contactref element="IC1" pad="6"/>
<contactref element="C10" pad="1"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC1" pad="2"/>
<contactref element="IC1" pad="5"/>
<contactref element="RN2" pad="8"/>
</signal>
<signal name="VDDCORE">
<contactref element="U4" pad="43"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="VDDANA">
<contactref element="U4" pad="6"/>
<contactref element="L1" pad="2"/>
<contactref element="C6" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="U4" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="Y2" pad="P$2"/>
</signal>
<signal name="N$4">
<contactref element="U4" pad="2"/>
<contactref element="C7" pad="1"/>
<contactref element="Y2" pad="P$1"/>
</signal>
<signal name="!RESET">
<contactref element="U4" pad="40"/>
<contactref element="R11" pad="1"/>
<contactref element="S1" pad="3"/>
<contactref element="JP2" pad="3"/>
<contactref element="S1" pad="4"/>
</signal>
<signal name="USB_D+">
<contactref element="U4" pad="34"/>
<contactref element="Z5" pad="1"/>
<contactref element="JP3" pad="USB_P"/>
<contactref element="X6" pad="D+"/>
</signal>
<signal name="USB_D-">
<contactref element="U4" pad="33"/>
<contactref element="Z6" pad="1"/>
<contactref element="JP3" pad="USB_M"/>
<contactref element="X6" pad="D-"/>
</signal>
<signal name="D1/TXO">
<contactref element="U4" pad="15"/>
<contactref element="I2C1" pad="3"/>
</signal>
<signal name="D0/RXI">
<contactref element="U4" pad="16"/>
<contactref element="I2C1" pad="4"/>
</signal>
<signal name="D4">
<contactref element="U4" pad="13"/>
<contactref element="TP3" pad="TP"/>
</signal>
<signal name="D3">
<contactref element="U4" pad="14"/>
<contactref element="TP2" pad="TP"/>
</signal>
<signal name="D2">
<contactref element="U4" pad="23"/>
<contactref element="TP1" pad="TP"/>
</signal>
<signal name="D5">
<contactref element="U4" pad="24"/>
<contactref element="TP4" pad="TP"/>
</signal>
<signal name="D6">
<contactref element="U4" pad="29"/>
<contactref element="TP5" pad="TP"/>
</signal>
<signal name="D7">
<contactref element="U4" pad="30"/>
<contactref element="TP6" pad="TP"/>
</signal>
<signal name="D8">
<contactref element="U4" pad="11"/>
<contactref element="TP7" pad="TP"/>
</signal>
<signal name="D9">
<contactref element="U4" pad="12"/>
<contactref element="TP8" pad="TP"/>
</signal>
<signal name="A3">
<contactref element="U4" pad="9"/>
<contactref element="J3" pad="3"/>
</signal>
<signal name="A2">
<contactref element="U4" pad="8"/>
<contactref element="J3" pad="4"/>
</signal>
<signal name="A1">
<contactref element="U4" pad="7"/>
<contactref element="J3" pad="5"/>
</signal>
<signal name="A0">
<contactref element="U4" pad="3"/>
<contactref element="J3" pad="6"/>
<contactref element="Q1" pad="1"/>
</signal>
<signal name="D12">
<contactref element="U4" pad="28"/>
<contactref element="TP11" pad="TP"/>
</signal>
<signal name="D11">
<contactref element="U4" pad="25"/>
<contactref element="TP10" pad="TP"/>
</signal>
<signal name="SWCLK">
<contactref element="U4" pad="45"/>
<contactref element="JP2" pad="4"/>
</signal>
<signal name="SWDIO">
<contactref element="U4" pad="46"/>
<contactref element="JP2" pad="5"/>
</signal>
<signal name="SDA">
<contactref element="U4" pad="31"/>
<contactref element="I2C4" pad="4"/>
<contactref element="R2" pad="2"/>
<contactref element="U1" pad="1"/>
<contactref element="U3" pad="7"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="SCL">
<contactref element="U4" pad="32"/>
<contactref element="I2C4" pad="3"/>
<contactref element="R3" pad="2"/>
<contactref element="U1" pad="6"/>
<contactref element="U3" pad="8"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="USB_HOST_EN">
<contactref element="U4" pad="41"/>
<contactref element="J3" pad="9"/>
</signal>
<signal name="RX_LED">
<contactref element="U4" pad="48"/>
<contactref element="RN2" pad="4"/>
</signal>
<signal name="TX_LED">
<contactref element="U4" pad="39"/>
<contactref element="RN2" pad="3"/>
</signal>
<signal name="AREF">
<contactref element="U4" pad="4"/>
<contactref element="J3" pad="8"/>
</signal>
<signal name="A4">
<contactref element="U4" pad="10"/>
<contactref element="J3" pad="2"/>
</signal>
<signal name="A5">
<contactref element="U4" pad="47"/>
<contactref element="J3" pad="1"/>
</signal>
<signal name="SPI_MISO">
<contactref element="U4" pad="21"/>
<contactref element="J1" pad="7"/>
<contactref element="J2" pad="1"/>
</signal>
<signal name="SPI_MOSI">
<contactref element="U4" pad="19"/>
<contactref element="J1" pad="3"/>
<contactref element="J2" pad="5"/>
</signal>
<signal name="SPI_SCK">
<contactref element="U4" pad="20"/>
<contactref element="J1" pad="5"/>
<contactref element="J2" pad="3"/>
</signal>
<signal name="D10">
<contactref element="U4" pad="27"/>
<contactref element="TP9" pad="TP"/>
</signal>
<signal name="D13">
<contactref element="U4" pad="26"/>
<contactref element="J1" pad="2"/>
<contactref element="RN2" pad="2"/>
<contactref element="J2" pad="6"/>
</signal>
<signal name="PA13">
<contactref element="U4" pad="22"/>
<contactref element="S3" pad="3"/>
<contactref element="S3" pad="4"/>
</signal>
<signal name="PB22">
<contactref element="U4" pad="37"/>
<contactref element="S5" pad="3"/>
<contactref element="S5" pad="4"/>
</signal>
<signal name="PB23">
<contactref element="U4" pad="38"/>
<contactref element="S4" pad="3"/>
<contactref element="S4" pad="4"/>
</signal>
<signal name="VUSB">
<contactref element="C5" pad="1"/>
<contactref element="JP3" pad="5V"/>
<contactref element="X6" pad="VBUS"/>
<contactref element="U2" pad="3"/>
</signal>
<signal name="N$1">
<contactref element="RN2" pad="5"/>
<contactref element="U$6" pad="R"/>
</signal>
<signal name="N$8">
<contactref element="U$6" pad="B"/>
<contactref element="RN2" pad="7"/>
</signal>
<signal name="N$13">
<contactref element="U$6" pad="G"/>
<contactref element="RN2" pad="6"/>
</signal>
<signal name="VBAT">
<contactref element="U$1" pad="+2"/>
<contactref element="U$1" pad="+1"/>
<contactref element="D1" pad="A"/>
<contactref element="U3" pad="6"/>
</signal>
<signal name="N$5">
<contactref element="U2" pad="2"/>
<contactref element="D2" pad="A"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="OUT">
<contactref element="Q1" pad="3"/>
<contactref element="U$2" pad="-"/>
</signal>
<signal name="N$6">
<contactref element="RN2" pad="1"/>
<contactref element="JUMPER2" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="LED2" pad="A"/>
<contactref element="JUMPER2" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
