<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.4.2">
<drawing>
<board>
<plain>
<wire x1="2.54" y1="0" x2="48.26" y2="0" width="0" layer="20"/>
<wire x1="48.26" y1="0" x2="50.8" y2="2.54" width="0" layer="20" curve="90"/>
<wire x1="50.8" y1="2.54" x2="50.8" y2="20.32" width="0" layer="20"/>
<wire x1="50.8" y1="20.32" x2="48.26" y2="22.86" width="0" layer="20" curve="90"/>
<wire x1="48.26" y1="22.86" x2="2.54" y2="22.86" width="0" layer="20"/>
<wire x1="2.54" y1="22.86" x2="0" y2="20.32" width="0" layer="20" curve="90"/>
<wire x1="0" y1="20.32" x2="0" y2="2.54" width="0" layer="20"/>
<wire x1="0" y1="2.54" x2="2.54" y2="0" width="0" layer="20" curve="90"/>
<text>VBUS</text>
<text>RST</text>
<text>ARF</text>
<text>3V</text>
<text>A1</text>
<text>A0</text>
<text>LED</text>
<text>SCK</text>
<text>MO</text>
<text>MI</text>
<text>RX</text>
<text>TX</text>
<text>VBAT</text>
<text>GND</text>
<text>EN</text>
<text>reset</text>
<hole x="48.26" y="1.8415" drill="2.2"/>
<hole x="48.26" y="20.955" drill="2.2"/>
<text>A2</text>
<text>SCL</text>
<text>SDA</text>
<text>VBUS</text>
<text>LED
PA05</text>
<text>SCL
PA15</text>
<text>SDA
PA14</text>
<text>VBAT</text>
<text>EN</text>
<text>RST
PA28</text>
<text>AREF
PA03</text>
<text>3V</text>
<text>A0
PA02</text>
<text>MISO
PA23</text>
<text>RX
PA09</text>
<text>TX
PA08</text>
<text>GND</text>
<text>A3</text>
<text>A1
PA04</text>
<text>A2
PA06</text>
<text>A3
PA07</text>
<text>SCK
PA16</text>
<text>MOSI
PA22</text>
<text>LIPO CHARGING</text>
<text>U2's a LiPo charge
controller. R4 sets
charge rate; R3 is
current limiting for
the CHG LED. C4 is
filter cap for VBAT.</text>
<text>POWER SUPPLY</text>
<text>D1 and Q1 conspire to let only the 
     higher of VBAT and VBUS reach 
     3.3V regulator U1. C1 filters the
      regulator input; C2 &amp; C3 filter 
     output. R2 pulls EN high to keep
     the regulator on; wings can
     add a switch to pull EN low.</text>
<text>ARM MICROCONTROLLER</text>
<text>IC1 is a SAM D11 20-pin 
SOIC. The brains of the 
operation! C5 filters power, 
C6 smooths out AREF. 
R5 is a pull-up for SWCLK. 
Aside from SWD and USB, 
the rest of the pins fan 
out to Feather headers.</text>
<text>SIMPLE SOIC20
SAM D11 FEATHER</text>
<text>AREF | 3V3 </text>
<text>``If you wish to make an apple pie from
scratch, you must first invent the universe.''
- Carl Sagan</text>
<text>by joey castillo</text>
<text>@josecastillo</text>
<text>Simple SOIC-20
SAM D11 Feather
OSO-SAFE-A1-02</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="0805-NO">
</package>
<package name="MOUNTINGHOLE_2.5_PLATED">
</package>
<package name="CHIPLED_0805_NOOUTLINE">
</package>
<package name="SOT23-5">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt; - 5 Pin</description>
</package>
<package name="1X16_ROUND_MIN">
</package>
<package name="JSTPH2">
<description>2-Pin JST PH Series Right-Angle Connector (+/- for batteries)</description>
</package>
<package name="1X12_ROUND_MIN">
</package>
<package name="2X05_1.27MM_BOX_POSTS">
<description>&lt;p&gt;4UCon: 20317&lt;/p&gt;</description>
</package>
<package name="SOD-123">
<description>&lt;b&gt;SOD-123&lt;/b&gt;
&lt;p&gt;Source: http://www.diodes.com/datasheets/ds30139.pdf&lt;/p&gt;</description>
</package>
<package name="SOT23-R">
<description>&lt;b&gt;SOT23&lt;/b&gt; - Reflow soldering</description>
</package>
<package name="SOLDERJUMPER_CLOSEDWIRE">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="KMR2">
</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="TP20R">
<description>&lt;b&gt;TEST PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="10118193-0001LF">
<packages>
<package name="FCI_10118193-0001LF">
</package>
</packages>
</library>
<library name="ATSAMD11D14A-SSNT">
<packages>
<package name="SOIC127P1030X265-20N">
</package>
</packages>
</library>
</libraries>
<attributes>
<attribute name="REV" value="C"/>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U$31" library="microbuilder" package="MOUNTINGHOLE_2.5_PLATED" value="MOUNTINGHOLE2.5">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="U$32" library="microbuilder" package="MOUNTINGHOLE_2.5_PLATED" value="MOUNTINGHOLE2.5">
<attribute name="BOM" value="EXCLUDE"/>
</element>
<element name="JP1" library="microbuilder" package="1X16_ROUND_MIN" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="X1" library="microbuilder" package="JSTPH2" value="JSTPH">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP3" library="microbuilder" package="1X12_ROUND_MIN" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED" library="microbuilder" package="CHIPLED_0805_NOOUTLINE" value="RED">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="microbuilder" package="0805-NO" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="microbuilder" package="0805-NO" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="microbuilder" package="0805-NO" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SW1" library="adafruit" package="KMR2" value="SPST_TACT-KMR2"/>
<element name="SWCLK" library="testpad" package="TP20R" value="TPSQTP20R">
<attribute name="NAME"/>
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="SWDIO" library="testpad" package="TP20R" value="TPSQTP20R">
<attribute name="NAME"/>
<attribute name="TP_SIGNAL_NAME" value=""/>
<attribute name="VALUE"/>
</element>
<element name="X2" library="microbuilder" package="2X05_1.27MM_BOX_POSTS" value="2x5 0.05&quot; SWD">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="microbuilder" package="0805-NO" value="10µF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="microbuilder" package="0805-NO" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="microbuilder" package="0805-NO" value="10µF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="microbuilder" package="SOT23-5" value="AP2112-3.3">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="microbuilder" package="SOD-123" value="MBR120">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q1" library="microbuilder" package="SOT23-R" value="DMG341">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="microbuilder" package="0805-NO" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="microbuilder" package="0805-NO" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U2" library="microbuilder" package="SOT23-5" value="MCP73831T-2ACI/OT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CHG" library="microbuilder" package="CHIPLED_0805_NOOUTLINE" value="ORANGE">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="microbuilder" package="0805-NO" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="microbuilder" package="0805-NO" value="10µF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="microbuilder" package="0805-NO" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="10118193-0001LF" package="FCI_10118193-0001LF" value="10118193-0001LF">
<attribute name="DESCRIPTION" value=" Single Port 5 Contact Shielded SMT MICRO USB B-Type Receptacle "/>
<attribute name="DIGI-KEY_PART_NUMBER" value="609-4616-1-ND"/>
<attribute name="DIGI-KEY_PURCHASE_URL" value="https://www.digikey.com/product-detail/en/amphenol-icc-fci/10118193-0001LF/609-4616-1-ND/2785380?utm_source=snapeda&amp;utm_medium=aggregator&amp;utm_campaign=symbol"/>
<attribute name="MF" value="Amphenol ICC"/>
<attribute name="MP" value="10118193-0001LF"/>
<attribute name="NAME"/>
<attribute name="PACKAGE" value="None"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="microbuilder" package="0805-NO" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SJ1" library="microbuilder" package="SOLDERJUMPER_CLOSEDWIRE" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC1" library="ATSAMD11D14A-SSNT" package="SOIC127P1030X265-20N" value="ATSAMD11D14A-SSNT">
<attribute name="AVAILABILITY" value="Unavailable"/>
<attribute name="DESCRIPTION" value=" Cortex-M0+, 16kb Flash, 4kb Sram, Usb - 20 Soic, 105c, Green, 1.6-3.6v, 48mhz, Usb/ Eiqj/Soic _s_ "/>
<attribute name="MF" value="Microchip"/>
<attribute name="MP" value="ATSAMD11D14A-SSNT"/>
<attribute name="NAME"/>
<attribute name="PACKAGE" value="SOIC-20 Atmel"/>
<attribute name="PRICE" value="None"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="JP1" pad="13"/>
<contactref element="X1" pad="1"/>
<contactref element="LED" pad="C"/>
<contactref element="C6" pad="2"/>
<contactref element="SW1" pad="2"/>
<contactref element="SW1" pad="4"/>
<contactref element="X2" pad="3"/>
<contactref element="X2" pad="5"/>
<contactref element="U1" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="C4" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="U2" pad="2"/>
<contactref element="J1" pad="S5"/>
<contactref element="J1" pad="S1"/>
<contactref element="J1" pad="S6"/>
<contactref element="J1" pad="S4"/>
<contactref element="J1" pad="S3"/>
<contactref element="J1" pad="S2"/>
<contactref element="IC1" pad="16"/>
<contactref element="C5" pad="2"/>
<contactref element="J1" pad="5"/>
</signal>
<signal name="VBUS">
<contactref element="JP3" pad="3"/>
<contactref element="D1" pad="A"/>
<contactref element="Q1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="U2" pad="4"/>
<contactref element="CHG" pad="A"/>
<contactref element="J1" pad="1"/>
</signal>
<signal name="VBAT">
<contactref element="X1" pad="2"/>
<contactref element="JP3" pad="1"/>
<contactref element="Q1" pad="3"/>
<contactref element="U2" pad="3"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="EN">
<contactref element="JP3" pad="2"/>
<contactref element="U1" pad="3"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="A1">
<contactref element="JP1" pad="11"/>
<contactref element="IC1" pad="20"/>
</signal>
<signal name="A0">
<contactref element="JP1" pad="12"/>
<contactref element="IC1" pad="18"/>
</signal>
<signal name="RX">
<contactref element="JP1" pad="3"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="TX">
<contactref element="JP1" pad="2"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="MOSI">
<contactref element="JP1" pad="5"/>
<contactref element="IC1" pad="9"/>
</signal>
<signal name="A5">
<contactref element="JP1" pad="7"/>
</signal>
<signal name="SDA">
<contactref element="JP3" pad="12"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="SCL">
<contactref element="JP3" pad="11"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="IOD">
<contactref element="JP3" pad="7"/>
</signal>
<signal name="IOB">
<contactref element="JP3" pad="9"/>
</signal>
<signal name="IOE">
<contactref element="JP3" pad="6"/>
</signal>
<signal name="MISO">
<contactref element="JP1" pad="4"/>
<contactref element="IC1" pad="10"/>
</signal>
<signal name="SCK">
<contactref element="JP1" pad="6"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="A4">
<contactref element="JP1" pad="8"/>
</signal>
<signal name="A3">
<contactref element="JP1" pad="9"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="LED">
<contactref element="R6" pad="1"/>
<contactref element="JP3" pad="4"/>
<contactref element="IC1" pad="1"/>
</signal>
<signal name="A2">
<contactref element="JP1" pad="10"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="LED" pad="A"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="IOF">
<contactref element="JP3" pad="5"/>
</signal>
<signal name="IOC">
<contactref element="JP3" pad="8"/>
</signal>
<signal name="IOX">
<contactref element="JP1" pad="1"/>
</signal>
<signal name="IOA">
<contactref element="JP3" pad="10"/>
</signal>
<signal name="AREF">
<contactref element="C6" pad="1"/>
<contactref element="SJ1" pad="1"/>
<contactref element="IC1" pad="19"/>
<contactref element="JP1" pad="14"/>
</signal>
<signal name="+3V3">
<contactref element="X2" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="U1" pad="5"/>
<contactref element="R5" pad="2"/>
<contactref element="SJ1" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="IC1" pad="17"/>
<contactref element="JP1" pad="15"/>
</signal>
<signal name="!RESET">
<contactref element="SW1" pad="1"/>
<contactref element="SW1" pad="3"/>
<contactref element="JP1" pad="16"/>
<contactref element="X2" pad="10"/>
<contactref element="IC1" pad="11"/>
</signal>
<signal name="SWDIO">
<contactref element="SWDIO" pad="TP"/>
<contactref element="X2" pad="2"/>
<contactref element="IC1" pad="13"/>
</signal>
<signal name="SWCLK">
<contactref element="SWCLK" pad="TP"/>
<contactref element="X2" pad="4"/>
<contactref element="R5" pad="1"/>
<contactref element="IC1" pad="12"/>
</signal>
<signal name="VHI">
<contactref element="D1" pad="C"/>
<contactref element="Q1" pad="2"/>
<contactref element="C1" pad="1"/>
<contactref element="U1" pad="1"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="CHG">
<contactref element="CHG" pad="C"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="STAT">
<contactref element="R3" pad="2"/>
<contactref element="U2" pad="1"/>
</signal>
<signal name="PROG">
<contactref element="U2" pad="5"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="USB_P">
<contactref element="J1" pad="3"/>
<contactref element="IC1" pad="15"/>
</signal>
<signal name="USB_N">
<contactref element="J1" pad="2"/>
<contactref element="IC1" pad="14"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
