<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.2.2">
<drawing>
<board>
<plain>
<text>TIMOTHY GARCIA 2018</text>
<text>Close Jumper to switch Addr: 0x77</text>
<wire x1="2.941971875" y1="-0.889" x2="84.861671875" y2="-0.889" width="0.1524" layer="20"/>
<wire x1="84.861671875" y1="-0.889" x2="87.884" y2="2.133328125" width="0.1524" layer="20" curve="90"/>
<wire x1="87.884" y1="2.133328125" x2="87.884" y2="31.348028125" width="0.1524" layer="20"/>
<wire x1="87.884" y1="31.348028125" x2="85.069028125" y2="34.163" width="0.1524" layer="20" curve="90"/>
<wire x1="85.069028125" y1="34.163" x2="2.761753125" y2="34.163" width="0.1524" layer="20"/>
<wire x1="2.761753125" y1="34.163" x2="0.127" y2="31.528246875" width="0.1524" layer="20" curve="90"/>
<wire x1="0.127" y1="31.528246875" x2="0.127" y2="1.925971875" width="0.1524" layer="20"/>
<wire x1="0.127" y1="1.925971875" x2="2.941971875" y2="-0.889" width="0.1524" layer="20" curve="90"/>
<text>0x74</text>
<text>JLCJLCJLCJLC</text>
<text>r1-11.19.2018</text>
<text>Timothy Garcia / MDIA2069</text>
<text>2032 / 3.3V</text>
<text>ON-OFF</text>
<text>CELL BATTERY</text>
<text>SPI FLASH</text>
<text>MCU</text>
<text>USB</text>
<text>ATSAMD21E18
CIRCUITPYTHON &amp; ARDUINO IDE COMPATIBLE</text>
<text>SET TO OFF BEFORE PROGRAMMING</text>
<text>XYZ</text>
<text>RESET</text>
<text>DESIGNED AND MADE BY TIMOTHY GARCIA
OPEN SOURCE HARDWARE &amp; SOFTWARE
www.timothygarcia.ca</text>
<text>POWER SWITCH</text>
</plain>
<libraries>
<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="CHIPLED_0603_NOOUTLINE">
</package>
<package name="QFN28_4MM_0.4MM">
<description>&lt;p&gt;&lt;b&gt;Source:&lt;/b&gt; http://www.issi.com/WW/pdf/31FL3731.pdf&lt;/p&gt;</description>
</package>
<package name="0805-NO">
</package>
<package name="RESPACK_4X0603">
</package>
<package name="SOLDERJUMPER_ARROW_NOPASTE">
</package>
<package name="FIDUCIAL_1MM">
</package>
<package name="0603-NO">
</package>
<package name="BTN_KMR2_4.6X2.8">
</package>
<package name="QFN32_5MM">
<description>&lt;p&gt;QFN32 5x5mm 0.5mm pitch&lt;/p&gt;
&lt;b&gt;Source:&lt;/b&gt; Nordic nRF8001 Product Specification</description>
</package>
<package name="APA102_2020">
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt; - 5 Pin</description>
</package>
<package name="SOIC8_208MIL">
<description>&lt;b&gt;Small Outline IC - 208mil Wide&lt;/b&gt;</description>
</package>
<package name="MOUNTINGHOLE_2.0_PLATED">
</package>
<package name="LGA16_3X3MM">
</package>
<package name="0805_10MGAP">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="SOD-123FL">
</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="B1,27">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Connectors&lt;/h3&gt;
This library contains electrically-functional connectors. 
&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="USB-B-MICRO-SMD">
<description>&lt;h3&gt;USB - microB SMD&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:5&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=”https://www.sparkfun.com/datasheets/Prototyping/Micro-USB.pdf”&gt;Datasheet referenced for footprint&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;USB_MICRO-B&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun-Fuses">
<description>&lt;h3&gt;SparkFun Fuses&lt;/h3&gt;
In this library you'll find fuses, or fuse like components such as PTCs. Reference designator F.
&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="1206">
<description>&lt;p&gt;&lt;b&gt;Generic 3216 (1206) package&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;0.2mm courtyard excess rounded to nearest 0.05mm.&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="JS102011SAQN">
<packages>
<package name="SW_JS102011SAQN">
</package>
</packages>
</library>
<library name="BU2032SM-BT-GTR">
<packages>
<package name="BAT_BU2032SM-BT-GTR">
</package>
</packages>
</library>
<library name="SparkFun-Aesthetics">
<description>&lt;h3&gt;SparkFun Aesthetics&lt;/h3&gt;
This library contiains non-functional items such as logos, build/ordering notes, 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 &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="OSHW-LOGO-S">
<description>&lt;h3&gt;Open-Source Hardware (OSHW) Logo - Small - Silkscreen&lt;/h3&gt;
&lt;p&gt;Silkscreen logo for open-source hardware designs.&lt;/p&gt;
&lt;p&gt;Devices using:
&lt;ul&gt;&lt;li&gt;OSHW_LOGO&lt;/li&gt;&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
<attribute name="REV" value="A"/>
</attributes>
<variantdefs>
</variantdefs>
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<attribute name="VALUE"/>
</element>
<element name="C8-13" library="microbuilder" package="CHIPLED_0603_NOOUTLINE" value="">
<attribute name="VALUE"/>
</element>
<element name="C8-14" library="microbuilder" package="CHIPLED_0603_NOOUTLINE" value="">
<attribute name="VALUE"/>
</element>
<element name="C8-15" library="microbuilder" package="CHIPLED_0603_NOOUTLINE" value="">
<attribute name="VALUE"/>
</element>
<element name="U1" library="microbuilder" package="QFN28_4MM_0.4MM" value="IS31FL3731-SALS2"/>
<element name="C1" library="microbuilder" package="0805-NO" value="10uF"/>
<element name="R5" library="microbuilder" package="RESPACK_4X0603" value="10K"/>
<element name="SJ1" library="microbuilder" package="SOLDERJUMPER_ARROW_NOPASTE" value="">
<attribute name="BOM" value="EXCLUDE"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="microbuilder" package="0805-NO" value="10uF"/>
<element name="C5" library="microbuilder" package="0805-NO" value="0.1uF"/>
<element name="FID1" library="microbuilder" package="FIDUCIAL_1MM" value="FIDUCIAL&quot;&quot;">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="FID2" library="microbuilder" package="FIDUCIAL_1MM" value="FIDUCIAL&quot;&quot;">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="C8" library="microbuilder" package="0805-NO" value="10uF"/>
<element name="R4" library="microbuilder" package="0603-NO" value="10K"/>
<element name="PWR" library="microbuilder" package="CHIPLED_0603_NOOUTLINE" value="g">
<attribute name="NAME"/>
</element>
<element name="D2" library="adafruit" package="SOD-123FL" value="SCHOTTKY"/>
<element name="D3" library="adafruit" package="SOD-123FL" value="SCHOTTKY"/>
<element name="C2" library="microbuilder" package="0805-NO" value="10uF"/>
<element name="Q2" library="microbuilder" package="BTN_KMR2_4.6X2.8" value="reset"/>
<element name="ATSAMD21E" library="microbuilder" package="QFN32_5MM" value="ATSAMD21E"/>
<element name="DOTSTAR-A3" library="microbuilder" package="APA102_2020" value="AP102-2020"/>
<element name="SWC" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="SWD" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="TP_SIGNAL_NAME" value=""/>
</element>
<element name="STATUS" library="microbuilder" package="CHIPLED_0603_NOOUTLINE" value="r">
<attribute name="NAME"/>
</element>
<element name="R1" library="microbuilder" package="0603-NO" value="1.5K"/>
<element name="C3" library="microbuilder" package="0603-NO" value="1uF"/>
<element name="U2" library="microbuilder" package="SOT23-5" value="AP2112K-3.3"/>
<element name="C6" library="microbuilder" package="0603-NO" value="1uF"/>
<element name="USB-CONNECTOR" library="SparkFun-Connectors" package="USB-B-MICRO-SMD" value="USB-CONNECTOR">
<attribute name="PROD_ID" value="CONN-11752"/>
</element>
<element name="F1" library="SparkFun-Fuses" package="1206" value="6V/0.5A">
<attribute name="PROD_ID" value="RES-08585"/>
</element>
<element name="U3" library="microbuilder" package="SOIC8_208MIL" value="2MB Flash"/>
<element name="R2" library="microbuilder" package="0603-NO" value="10K"/>
<element name="U$20" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$21" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$22" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$23" library="microbuilder" package="MOUNTINGHOLE_2.0_PLATED" value="MOUNTINGHOLE2.0">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="S1" library="JS102011SAQN" package="SW_JS102011SAQN" value="JS102011SAQN">
<attribute name="AVAILABILITY" value="Unavailable"/>
<attribute name="DESCRIPTION" value=" JS10 Series SPDT On-On 6 V 0.3 A Gull Wing SMT Slide Switch "/>
<attribute name="MF" value="C&amp;K"/>
<attribute name="MP" value="JS102011SAQN"/>
<attribute name="PACKAGE" value="None"/>
<attribute name="PRICE" value="None"/>
</element>
<element name="BT1" library="BU2032SM-BT-GTR" package="BAT_BU2032SM-BT-GTR" value="BU2032SM-BT-GTR">
<attribute name="DESCRIPTION" value=" Holder Cr2032 Gold Leads Smd "/>
<attribute name="DIGI-KEY_PART_NUMBER" value="BU2032SM-BT-GCT-ND"/>
<attribute name="DIGI-KEY_PURCHASE_URL" value="https://www.digikey.ca/product-detail/en/mpd-memory-protection-devices/BU2032SM-BT-GTR/BU2032SM-BT-GCT-ND/3628531?utm_source=snapeda&amp;utm_medium=aggregator&amp;utm_campaign=symbol"/>
<attribute name="MF" value="MPD"/>
<attribute name="MP" value="BU2032SM-BT-GTR"/>
<attribute name="PACKAGE" value="None"/>
</element>
<element name="C7" library="microbuilder" package="0805-NO" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="SCL" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="NAME"/>
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="SDA" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="NAME"/>
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="3.3V" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="testpad" package="B1,27" value="TPB1,27">
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="U4" library="microbuilder" package="LGA16_3X3MM" value="LIS3DHTR">
<attribute name="VALUE"/>
</element>
<element name="C9" library="microbuilder" package="0805_10MGAP" value="0.1uF"/>
<element name="C10" library="microbuilder" package="0805-NO" value="10µF"/>
<element name="R8" library="microbuilder" package="0805-NO" value="10K"/>
<element name="R3" library="microbuilder" package="0805-NO" value="10K"/>
<element name="U$30" library="SparkFun-Aesthetics" package="OSHW-LOGO-S" value=""/>
</elements>
<signals>
<signal name="CA1">
<contactref element="C1-8" pad="C"/>
<contactref element="C1-2" pad="C"/>
<contactref element="C1-3" pad="C"/>
<contactref element="C1-4" pad="C"/>
<contactref element="C1-5" pad="C"/>
<contactref element="C1-6" pad="C"/>
<contactref element="C1-7" pad="C"/>
<contactref element="U1" pad="21"/>
</signal>
<signal name="CA2">
<contactref element="C2-8" pad="C"/>
<contactref element="C2-7" pad="C"/>
<contactref element="C2-6" pad="C"/>
<contactref element="C2-5" pad="C"/>
<contactref element="C2-4" pad="C"/>
<contactref element="C2-3" pad="C"/>
<contactref element="C2-2" pad="C"/>
<contactref element="C3-2" pad="A"/>
<contactref element="C4-2" pad="A"/>
<contactref element="C5-2" pad="A"/>
<contactref element="C6-2" pad="A"/>
<contactref element="C7-2" pad="A"/>
<contactref element="C8-2" pad="A"/>
<contactref element="U1" pad="22"/>
</signal>
<signal name="CA3">
<contactref element="C3-8" pad="C"/>
<contactref element="C3-7" pad="C"/>
<contactref element="C3-6" pad="C"/>
<contactref element="C3-5" pad="C"/>
<contactref element="C3-4" pad="C"/>
<contactref element="C3-3" pad="C"/>
<contactref element="C3-2" pad="C"/>
<contactref element="C1-2" pad="A"/>
<contactref element="C2-2" pad="A"/>
<contactref element="C4-3" pad="A"/>
<contactref element="C5-3" pad="A"/>
<contactref element="C6-3" pad="A"/>
<contactref element="C7-3" pad="A"/>
<contactref element="C8-3" pad="A"/>
<contactref element="U1" pad="23"/>
</signal>
<signal name="CA4">
<contactref element="C4-8" pad="C"/>
<contactref element="C4-7" pad="C"/>
<contactref element="C4-6" pad="C"/>
<contactref element="C4-5" pad="C"/>
<contactref element="C4-4" pad="C"/>
<contactref element="C4-3" pad="C"/>
<contactref element="C4-2" pad="C"/>
<contactref element="C1-3" pad="A"/>
<contactref element="C2-3" pad="A"/>
<contactref element="C3-3" pad="A"/>
<contactref element="C5-4" pad="A"/>
<contactref element="C6-4" pad="A"/>
<contactref element="C7-4" pad="A"/>
<contactref element="C8-4" pad="A"/>
<contactref element="U1" pad="24"/>
</signal>
<signal name="CA5">
<contactref element="C5-8" pad="C"/>
<contactref element="C5-2" pad="C"/>
<contactref element="C5-3" pad="C"/>
<contactref element="C5-4" pad="C"/>
<contactref element="C5-5" pad="C"/>
<contactref element="C5-6" pad="C"/>
<contactref element="C5-7" pad="C"/>
<contactref element="C1-4" pad="A"/>
<contactref element="C2-4" pad="A"/>
<contactref element="C3-4" pad="A"/>
<contactref element="C4-4" pad="A"/>
<contactref element="C6-5" pad="A"/>
<contactref element="C7-5" pad="A"/>
<contactref element="C8-5" pad="A"/>
<contactref element="U1" pad="25"/>
</signal>
<signal name="CA6">
<contactref element="C6-8" pad="C"/>
<contactref element="C6-7" pad="C"/>
<contactref element="C6-6" pad="C"/>
<contactref element="C6-5" pad="C"/>
<contactref element="C6-4" pad="C"/>
<contactref element="C6-3" pad="C"/>
<contactref element="C6-2" pad="C"/>
<contactref element="C1-5" pad="A"/>
<contactref element="C2-5" pad="A"/>
<contactref element="C3-5" pad="A"/>
<contactref element="C4-5" pad="A"/>
<contactref element="C5-5" pad="A"/>
<contactref element="C7-6" pad="A"/>
<contactref element="C8-6" pad="A"/>
<contactref element="U1" pad="26"/>
</signal>
<signal name="CA7">
<contactref element="C7-8" pad="C"/>
<contactref element="C7-2" pad="C"/>
<contactref element="C7-3" pad="C"/>
<contactref element="C7-4" pad="C"/>
<contactref element="C7-5" pad="C"/>
<contactref element="C7-6" pad="C"/>
<contactref element="C7-7" pad="C"/>
<contactref element="C1-6" pad="A"/>
<contactref element="C2-6" pad="A"/>
<contactref element="C3-6" pad="A"/>
<contactref element="C4-6" pad="A"/>
<contactref element="C5-6" pad="A"/>
<contactref element="C6-6" pad="A"/>
<contactref element="C8-7" pad="A"/>
<contactref element="U1" pad="27"/>
</signal>
<signal name="CA8">
<contactref element="C8-8" pad="C"/>
<contactref element="C8-2" pad="C"/>
<contactref element="C8-3" pad="C"/>
<contactref element="C8-4" pad="C"/>
<contactref element="C8-5" pad="C"/>
<contactref element="C8-6" pad="C"/>
<contactref element="C8-7" pad="C"/>
<contactref element="C1-7" pad="A"/>
<contactref element="C2-7" pad="A"/>
<contactref element="C3-7" pad="A"/>
<contactref element="C4-7" pad="A"/>
<contactref element="C5-7" pad="A"/>
<contactref element="C6-7" pad="A"/>
<contactref element="C7-7" pad="A"/>
<contactref element="U1" pad="28"/>
</signal>
<signal name="CA9">
<contactref element="C1-8" pad="A"/>
<contactref element="C8-8" pad="A"/>
<contactref element="C2-8" pad="A"/>
<contactref element="C3-8" pad="A"/>
<contactref element="C4-8" pad="A"/>
<contactref element="C5-8" pad="A"/>
<contactref element="C6-8" pad="A"/>
<contactref element="C7-8" pad="A"/>
<contactref element="U1" pad="1"/>
</signal>
<signal name="CB2">
<contactref element="C2-9" pad="C"/>
<contactref element="C2-10" pad="C"/>
<contactref element="C2-11" pad="C"/>
<contactref element="C2-12" pad="C"/>
<contactref element="C2-13" pad="C"/>
<contactref element="C2-14" pad="C"/>
<contactref element="C2-15" pad="C"/>
<contactref element="C3-10" pad="A"/>
<contactref element="C4-10" pad="A"/>
<contactref element="C5-10" pad="A"/>
<contactref element="C6-10" pad="A"/>
<contactref element="C7-10" pad="A"/>
<contactref element="C8-10" pad="A"/>
<contactref element="U1" pad="8"/>
</signal>
<signal name="CB3">
<contactref element="C3-9" pad="C"/>
<contactref element="C3-15" pad="C"/>
<contactref element="C3-14" pad="C"/>
<contactref element="C3-13" pad="C"/>
<contactref element="C3-12" pad="C"/>
<contactref element="C3-11" pad="C"/>
<contactref element="C3-10" pad="C"/>
<contactref element="C2-10" pad="A"/>
<contactref element="C8-11" pad="A"/>
<contactref element="C7-11" pad="A"/>
<contactref element="C4-11" pad="A"/>
<contactref element="C5-11" pad="A"/>
<contactref element="C6-11" pad="A"/>
<contactref element="U1" pad="9"/>
</signal>
<signal name="CB4">
<contactref element="C4-9" pad="C"/>
<contactref element="C4-10" pad="C"/>
<contactref element="C4-11" pad="C"/>
<contactref element="C4-12" pad="C"/>
<contactref element="C4-13" pad="C"/>
<contactref element="C4-14" pad="C"/>
<contactref element="C4-15" pad="C"/>
<contactref element="C8-12" pad="A"/>
<contactref element="C7-12" pad="A"/>
<contactref element="C2-11" pad="A"/>
<contactref element="C3-11" pad="A"/>
<contactref element="C5-12" pad="A"/>
<contactref element="C6-12" pad="A"/>
<contactref element="U1" pad="10"/>
</signal>
<signal name="CB5">
<contactref element="C5-9" pad="C"/>
<contactref element="C5-15" pad="C"/>
<contactref element="C5-14" pad="C"/>
<contactref element="C5-13" pad="C"/>
<contactref element="C5-12" pad="C"/>
<contactref element="C5-11" pad="C"/>
<contactref element="C5-10" pad="C"/>
<contactref element="C8-13" pad="A"/>
<contactref element="C7-13" pad="A"/>
<contactref element="C2-12" pad="A"/>
<contactref element="C3-12" pad="A"/>
<contactref element="C4-12" pad="A"/>
<contactref element="C6-13" pad="A"/>
<contactref element="U1" pad="11"/>
</signal>
<signal name="CB6">
<contactref element="C6-9" pad="C"/>
<contactref element="C6-10" pad="C"/>
<contactref element="C6-11" pad="C"/>
<contactref element="C6-12" pad="C"/>
<contactref element="C6-13" pad="C"/>
<contactref element="C6-14" pad="C"/>
<contactref element="C6-15" pad="C"/>
<contactref element="C8-14" pad="A"/>
<contactref element="C7-14" pad="A"/>
<contactref element="C2-13" pad="A"/>
<contactref element="C3-13" pad="A"/>
<contactref element="C4-13" pad="A"/>
<contactref element="C5-13" pad="A"/>
<contactref element="U1" pad="12"/>
</signal>
<signal name="CB7">
<contactref element="C7-9" pad="C"/>
<contactref element="C7-15" pad="C"/>
<contactref element="C7-14" pad="C"/>
<contactref element="C7-13" pad="C"/>
<contactref element="C7-12" pad="C"/>
<contactref element="C7-11" pad="C"/>
<contactref element="C7-10" pad="C"/>
<contactref element="C8-15" pad="A"/>
<contactref element="C2-14" pad="A"/>
<contactref element="C3-14" pad="A"/>
<contactref element="C4-14" pad="A"/>
<contactref element="C5-14" pad="A"/>
<contactref element="C6-14" pad="A"/>
<contactref element="U1" pad="13"/>
</signal>
<signal name="CB8">
<contactref element="C8-9" pad="C"/>
<contactref element="C8-10" pad="C"/>
<contactref element="C8-11" pad="C"/>
<contactref element="C8-12" pad="C"/>
<contactref element="C8-13" pad="C"/>
<contactref element="C8-15" pad="C"/>
<contactref element="C8-14" pad="C"/>
<contactref element="C7-15" pad="A"/>
<contactref element="C6-15" pad="A"/>
<contactref element="C5-15" pad="A"/>
<contactref element="C4-15" pad="A"/>
<contactref element="C3-15" pad="A"/>
<contactref element="C2-15" pad="A"/>
<contactref element="U1" pad="14"/>
</signal>
<signal name="CB1">
<contactref element="C2-9" pad="A"/>
<contactref element="C3-9" pad="A"/>
<contactref element="C4-9" pad="A"/>
<contactref element="C5-9" pad="A"/>
<contactref element="C6-9" pad="A"/>
<contactref element="C7-9" pad="A"/>
<contactref element="C8-9" pad="A"/>
<contactref element="U1" pad="7"/>
</signal>
<signal name="VCC">
<contactref element="U1" pad="3"/>
</signal>
<signal name="GND">
<contactref element="U1" pad="THERMAL"/>
<contactref element="U1" pad="5"/>
<contactref element="C1" pad="2"/>
<contactref element="R5" pad="6"/>
<contactref element="C4" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="R5" pad="5"/>
<contactref element="ATSAMD21E" pad="10"/>
<contactref element="ATSAMD21E" pad="33"/>
<contactref element="DOTSTAR-A3" pad="4"/>
<contactref element="U2" pad="2"/>
<contactref element="USB-CONNECTOR" pad="GND"/>
<contactref element="C8" pad="2"/>
<contactref element="PWR" pad="C"/>
<contactref element="C2" pad="2"/>
<contactref element="Q2" pad="B"/>
<contactref element="Q2" pad="B'"/>
<contactref element="ATSAMD21E" pad="28"/>
<contactref element="STATUS" pad="C"/>
<contactref element="C3" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="U3" pad="4"/>
<contactref element="BT1" pad="2"/>
<contactref element="C7" pad="2"/>
<contactref element="GND" pad="TP"/>
<contactref element="U4" pad="5"/>
<contactref element="U4" pad="10"/>
<contactref element="U4" pad="12"/>
<contactref element="C9" pad="2"/>
<contactref element="C10" pad="2"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="R_EXT">
<contactref element="U1" pad="6"/>
<contactref element="R5" pad="4"/>
</signal>
<signal name="SDA">
<contactref element="U1" pad="19"/>
<contactref element="R5" pad="2"/>
<contactref element="ATSAMD21E" pad="11"/>
<contactref element="SDA" pad="TP"/>
<contactref element="U4" pad="6"/>
</signal>
<signal name="SCL">
<contactref element="U1" pad="20"/>
<contactref element="R5" pad="1"/>
<contactref element="ATSAMD21E" pad="12"/>
<contactref element="SCL" pad="TP"/>
<contactref element="U4" pad="4"/>
</signal>
<signal name="INTB">
<contactref element="U1" pad="4"/>
</signal>
<signal name="ADDR">
<contactref element="U1" pad="18"/>
<contactref element="R5" pad="3"/>
<contactref element="SJ1" pad="1"/>
</signal>
<signal name="VBUS">
<contactref element="D2" pad="A"/>
<contactref element="F1" pad="2"/>
</signal>
<signal name="D+">
<contactref element="ATSAMD21E" pad="24"/>
<contactref element="USB-CONNECTOR" pad="D+"/>
</signal>
<signal name="D-">
<contactref element="ATSAMD21E" pad="23"/>
<contactref element="USB-CONNECTOR" pad="D-"/>
</signal>
<signal name="N$6">
<contactref element="R4" pad="1"/>
<contactref element="PWR" pad="A"/>
</signal>
<signal name="VBAT">
<contactref element="D3" pad="A"/>
<contactref element="S1" pad="2"/>
<contactref element="C7" pad="1"/>
</signal>
<signal name="VOUT">
<contactref element="D2" pad="C"/>
<contactref element="D3" pad="C"/>
<contactref element="C2" pad="1"/>
<contactref element="U2" pad="1"/>
<contactref element="U2" pad="3"/>
</signal>
<signal name="!RESET">
<contactref element="Q2" pad="A"/>
<contactref element="Q2" pad="A'"/>
<contactref element="ATSAMD21E" pad="26"/>
</signal>
<signal name="3.3V">
<contactref element="ATSAMD21E" pad="9"/>
<contactref element="ATSAMD21E" pad="30"/>
<contactref element="DOTSTAR-A3" pad="3"/>
<contactref element="C3" pad="1"/>
<contactref element="R2" pad="2"/>
<contactref element="U3" pad="8"/>
<contactref element="U3" pad="3"/>
<contactref element="U3" pad="7"/>
<contactref element="U1" pad="2"/>
<contactref element="C1" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="R5" pad="8"/>
<contactref element="R5" pad="7"/>
<contactref element="SJ1" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="C8" pad="1"/>
<contactref element="U2" pad="5"/>
<contactref element="3.3V" pad="TP"/>
<contactref element="U4" pad="14"/>
<contactref element="C9" pad="1"/>
<contactref element="U4" pad="1"/>
<contactref element="C10" pad="1"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="D1_A0_PA02">
<contactref element="ATSAMD21E" pad="3"/>
</signal>
<signal name="N$1">
<contactref element="STATUS" pad="A"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="VDDCORE1">
<contactref element="C6" pad="1"/>
<contactref element="ATSAMD21E" pad="29"/>
</signal>
<signal name="A3">
<contactref element="DOTSTAR-A3" pad="6"/>
<contactref element="ATSAMD21E" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="ATSAMD21E" pad="13"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="DOTSTAR-A3" pad="5"/>
<contactref element="ATSAMD21E" pad="2"/>
</signal>
<signal name="D4_A2_PA06_TXD_MOSI">
<contactref element="ATSAMD21E" pad="7"/>
</signal>
<signal name="D3_A3_PA07_RXD_SCK">
<contactref element="ATSAMD21E" pad="8"/>
</signal>
<signal name="PA16D_FLASHMOSI">
<contactref element="ATSAMD21E" pad="17"/>
<contactref element="U3" pad="5"/>
</signal>
<signal name="PA17D_FLASHSCK">
<contactref element="ATSAMD21E" pad="18"/>
<contactref element="U3" pad="6"/>
</signal>
<signal name="PA11_FLASHCS">
<contactref element="ATSAMD21E" pad="14"/>
<contactref element="U3" pad="1"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="PA19D_FLASHMISO">
<contactref element="ATSAMD21E" pad="20"/>
<contactref element="U3" pad="2"/>
</signal>
<signal name="PA03">
<contactref element="ATSAMD21E" pad="4"/>
</signal>
<signal name="PA04">
<contactref element="ATSAMD21E" pad="5"/>
</signal>
<signal name="PA05">
<contactref element="ATSAMD21E" pad="6"/>
</signal>
<signal name="PA23">
<contactref element="ATSAMD21E" pad="22"/>
</signal>
<signal name="PA22">
<contactref element="ATSAMD21E" pad="21"/>
</signal>
<signal name="PA15">
<contactref element="ATSAMD21E" pad="16"/>
</signal>
<signal name="PA14">
<contactref element="ATSAMD21E" pad="15"/>
</signal>
<signal name="PA18">
<contactref element="ATSAMD21E" pad="19"/>
</signal>
<signal name="PA28">
<contactref element="ATSAMD21E" pad="27"/>
</signal>
<signal name="PA27">
<contactref element="ATSAMD21E" pad="25"/>
</signal>
<signal name="SWC">
<contactref element="ATSAMD21E" pad="31"/>
<contactref element="SWC" pad="TP"/>
</signal>
<signal name="SWD">
<contactref element="ATSAMD21E" pad="32"/>
<contactref element="SWD" pad="TP"/>
</signal>
<signal name="VBUSRAW">
<contactref element="USB-CONNECTOR" pad="VBUS"/>
<contactref element="F1" pad="1"/>
</signal>
<signal name="VBAT_CELL">
<contactref element="BT1" pad="1"/>
<contactref element="S1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="U4" pad="8"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="SDO">
<contactref element="U4" pad="7"/>
<contactref element="R3" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
