<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.7.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="50.018" y2="0" width="0" layer="20"/>
<wire x1="50.018" y1="0" x2="50.018" y2="55.042" width="0" layer="20"/>
<wire x1="50.018" y1="55.042" x2="0" y2="55.042" width="0" layer="20"/>
<wire x1="0" y1="55.042" x2="0" y2="0" width="0" layer="20"/>
<hole x="34.163" y="42.164" drill="2.2"/>
<hole x="34.163" y="21.59" drill="2.2"/>
<text>Gate  GND</text>
<text>Optional</text>
<text>DAC Out</text>
<text>11 12 13 G</text>
<text>Battery Tester
Version 2.4</text>
<text>Open Hardware</text>
<text>Greg Christenson 2019</text>
<text>USB</text>
<text>Alt.</text>
<text>+5</text>
<text>-</text>
<text>USB 5volts is normal power for logging
Use Alt. power for stand-alone only!</text>
<text>Designed for use with:
IXTX200N10L2 MOSFET
IXTX110N20L2 MOSFET</text>
<text>I2C High Side DC
Voltage and Current
Sensor 26V ±3.2A Max</text>
<text>Vin+  Vin-</text>
<text>MOSFET-D</text>
<text>Battery+</text>
<text>5.28K</text>
<text>Made on Earth by Humans</text>
</plain>
<libraries>
<library name="Teensy_3_and_LC_Series_Boards_v1.1">
<packages>
<package name="TEENSY3-ALL_PINS">
</package>
</packages>
</library>
<library name="holes">
<description>&lt;b&gt;Mounting Holes and Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="3,6-PAD">
<description>&lt;b&gt;MOUNTING PAD&lt;/b&gt; 3.6 mm, round</description>
</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="1X04_LOCK">
</package>
<package name="1X06_LOCK">
<description>This footprint was designed to help hold the alignment of a through-hole component (i.e.  6-pin header) while soldering it into place.  
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).  
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes.  Because they are alternating, it causes a "brace" 
to hold the component in place.  0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice.  Also,
if you push a header all the way into place, it is covered up entirely on the bottom side.  This idea of altering the position of holes to aid alignment 
will be further integrated into the Sparkfun Library for other footprints.  It can help hold any component with 3 or more connection pins.</description>
</package>
<package name="1X03_LOCK">
</package>
<package name="1X02_LOCK">
</package>
<package name="SCREWTERMINAL-3.5MM-2_LOCK">
</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="BUZZER-12MM">
<description>&lt;b&gt;BUZZER&lt;/b&gt;</description>
</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="AXIAL-0.3">
</package>
</packages>
</library>
<library name="SparkFun-Capacitors">
<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="CAP-PTH-SMALL">
</package>
<package name="0603-CAP">
</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-M">
</package>
</packages>
</library>
<library name="Texas Instruments_By_element14_Batch_1">
<description>Developed by element14 :&lt;br&gt;
element14 CAD Library consolidation.ulp
at 30/07/2012 17:45:58</description>
<packages>
<package name="SOT95P280X145-5N">
</package>
</packages>
</library>
<library name="Microchip_By_element14_Batch_1">
<description>Developed by element14 :&lt;br&gt;
element14 CAD Library consolidation.ulp
at 30/07/2012 11:22:31</description>
<packages>
<package name="TO127P254X495-3">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U1" library="Teensy_3_and_LC_Series_Boards_v1.1" package="TEENSY3-ALL_PINS" value="TEENSY_3.2">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="H1" library="holes" package="3,6-PAD" value="MOUNT-PAD-ROUND3.6"/>
<element name="H2" library="holes" package="3,6-PAD" value="MOUNT-PAD-ROUND3.6"/>
<element name="H3" library="holes" package="3,6-PAD" value="MOUNT-PAD-ROUND3.6"/>
<element name="H4" library="holes" package="3,6-PAD" value="MOUNT-PAD-ROUND3.6"/>
<element name="J1" library="SparkFun-Connectors" package="1X04_LOCK" value="Display">
<attribute name="PROD_ID" value="CONN-09696"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J2" library="SparkFun-Connectors" package="1X06_LOCK" value="Adafruit INA219B">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J3" library="SparkFun-Connectors" package="1X03_LOCK" value="10K Pot">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SG1" library="SparkFun-Electromechanical" package="BUZZER-12MM" value="BUZZERPTH">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="SparkFun-Resistors" package="AXIAL-0.3" value="1.2K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J4" library="SparkFun-Connectors" package="SCREWTERMINAL-3.5MM-2_LOCK" value="MOSFET">
<attribute name="NAME"/>
<attribute name="VALUE"/>
<attribute name="PROD_ID" value="CONN-08399"/>
</element>
<element name="J5" library="SparkFun-Connectors" package="1X04_LOCK" value="Switches">
<attribute name="PROD_ID" value="CONN-09696"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="AXIAL-0.3" value="100K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="10nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J6" library="SparkFun-Connectors" package="1X04_LOCK" value="Encoder">
<attribute name="PROD_ID" value="CONN-09696"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="SparkFun-Aesthetics" package="OSHW-LOGO-M" value=""/>
<element name="J7" library="SparkFun-Connectors" package="1X02_LOCK" value="power">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U2" library="Texas Instruments_By_element14_Batch_1" package="SOT95P280X145-5N" value="OPA365">
<attribute name="PACKAGE" value="SOT-23-5"/>
<attribute name="OC_NEWARK" value="03M9400"/>
<attribute name="MPN" value="OPA365AIDBVR"/>
<attribute name="SUPPLIER" value="Texas Instruments"/>
<attribute name="OC_FARNELL" value="-"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="SparkFun-Resistors" package="AXIAL-0.3" value="60.4">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="SparkFun-Resistors" package="AXIAL-0.3" value="10.5K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="SparkFun-Resistors" package="AXIAL-0.3" value="60.4">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="SparkFun-Resistors" package="AXIAL-0.3" value="10.5K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="SparkFun-Resistors" package="AXIAL-0.3" value="11K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="SparkFun-Resistors" package="AXIAL-0.3" value="10K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="SparkFun-Resistors" package="AXIAL-0.3" value="11K">
<attribute name="PROD_ID" value="RES-08380"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U3" library="Microchip_By_element14_Batch_1" package="TO127P254X495-3" value="MCP1525-I/TO">
<attribute name="PACKAGE" value="TO-92"/>
<attribute name="OC_NEWARK" value="89C7117"/>
<attribute name="MPN" value="MCP1525-I/TO"/>
<attribute name="SUPPLIER" value="Microchip"/>
<attribute name="OC_FARNELL" value="1292235"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="SparkFun-Capacitors" package="CAP-PTH-SMALL" value="0.1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="SparkFun-Capacitors" package="0603-CAP" value="10uF">
<attribute name="PROD_ID" value="CAP-11015"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="U1" pad="GND"/>
<contactref element="U1" pad="GND1"/>
<contactref element="J1" pad="2"/>
<contactref element="J2" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="J3" pad="1"/>
<contactref element="SG1" pad="+"/>
<contactref element="C2" pad="2"/>
<contactref element="J5" pad="1"/>
<contactref element="J6" pad="4"/>
<contactref element="J7" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="C6" pad="2"/>
<contactref element="J4" pad="2"/>
<contactref element="R2" pad="P$1"/>
<contactref element="R7" pad="P$2"/>
<contactref element="U2" pad="2"/>
<contactref element="H2" pad="B3,6"/>
<contactref element="H4" pad="B3,6"/>
<contactref element="H1" pad="B3,6"/>
<contactref element="H3" pad="B3,6"/>
<contactref element="C7" pad="2"/>
<contactref element="U3" pad="1"/>
</signal>
<signal name="3.3V">
<contactref element="U1" pad="3.3V"/>
<contactref element="U1" pad="3.3V1"/>
</signal>
<signal name="VBAT">
<contactref element="U1" pad="VBAT"/>
</signal>
<signal name="AREF">
<contactref element="U1" pad="AREF"/>
</signal>
<signal name="VUSB">
<contactref element="U1" pad="VUSB"/>
</signal>
<signal name="DRIVE">
<contactref element="R1" pad="P$2"/>
<contactref element="J4" pad="1"/>
<contactref element="R2" pad="P$2"/>
</signal>
<signal name="SDA">
<contactref element="U1" pad="18/A4"/>
<contactref element="J1" pad="4"/>
<contactref element="J2" pad="4"/>
</signal>
<signal name="SCL">
<contactref element="U1" pad="19/A5"/>
<contactref element="J1" pad="3"/>
<contactref element="J2" pad="3"/>
</signal>
<signal name="VCC">
<contactref element="C1" pad="1"/>
<contactref element="J2" pad="1"/>
<contactref element="J1" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="J3" pad="3"/>
<contactref element="U1" pad="VIN"/>
<contactref element="J7" pad="1"/>
<contactref element="U2" pad="5"/>
<contactref element="C5" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="U3" pad="3"/>
</signal>
<signal name="N$9">
<contactref element="U1" pad="17/A3"/>
<contactref element="J3" pad="2"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="11">
<contactref element="J5" pad="4"/>
<contactref element="U1" pad="11"/>
</signal>
<signal name="12">
<contactref element="J5" pad="3"/>
<contactref element="U1" pad="12"/>
</signal>
<signal name="13">
<contactref element="J5" pad="2"/>
<contactref element="U1" pad="13"/>
</signal>
<signal name="N$5">
<contactref element="J6" pad="3"/>
<contactref element="U1" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="J6" pad="2"/>
<contactref element="U1" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="J6" pad="1"/>
<contactref element="U1" pad="4"/>
</signal>
<signal name="N$1">
<contactref element="R4" pad="P$2"/>
<contactref element="R3" pad="P$1"/>
</signal>
<signal name="N$2">
<contactref element="R6" pad="P$2"/>
<contactref element="R5" pad="P$1"/>
</signal>
<signal name="N$8">
<contactref element="R3" pad="P$2"/>
<contactref element="R5" pad="P$2"/>
<contactref element="U2" pad="3"/>
<contactref element="R9" pad="P$1"/>
</signal>
<signal name="N$10">
<contactref element="R4" pad="P$1"/>
<contactref element="R6" pad="P$1"/>
<contactref element="U3" pad="2"/>
<contactref element="C7" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="U1" pad="RESET/DAC"/>
<contactref element="R9" pad="P$2"/>
</signal>
<signal name="N$16">
<contactref element="U2" pad="4"/>
<contactref element="R8" pad="P$2"/>
<contactref element="R7" pad="P$1"/>
</signal>
<signal name="N$17">
<contactref element="U2" pad="1"/>
<contactref element="R8" pad="P$1"/>
<contactref element="R1" pad="P$1"/>
</signal>
<signal name="N$18">
<contactref element="U1" pad="AGND"/>
</signal>
<signal name="N$3">
<contactref element="SG1" pad="-"/>
<contactref element="U1" pad="5"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
