<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="22.86" y1="1.5875" x2="22.86" y2="12.3825" width="0" layer="20"/>
<wire x1="22.86" y1="12.3825" x2="21.2725" y2="13.97" width="0" layer="20" curve="90"/>
<wire x1="21.2725" y1="13.97" x2="1.5875" y2="13.97" width="0" layer="20"/>
<wire x1="1.5875" y1="13.97" x2="0" y2="12.3825" width="0" layer="20" curve="90"/>
<wire x1="0" y1="12.3825" x2="0" y2="1.5875" width="0" layer="20"/>
<wire x1="0" y1="1.5875" x2="1.5875" y2="0" width="0" layer="20" curve="90"/>
<wire x1="1.5875" y1="0" x2="21.2725" y2="0" width="0" layer="20"/>
<wire x1="21.2725" y1="0" x2="22.86" y2="1.5875" width="0" layer="20" curve="90"/>
<text>MT</text>
<text>EPCCS.ORG</text>
<text>16052^0</text>
</plain>
<libraries>
<library name="U-Time">
<description>&lt;pre&gt;TIMER (RTC &amp; 555)

USE AT YOUR OWN RISK...

Copyright (C) 2014 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="SOIC8">
<description>&lt;pre&gt;8POS Standard SMALLl OUTLINE Package (SO/SOIC) Narrow Body</description>
</package>
</packages>
</library>
<library name="U-Sensor">
<description>&lt;pre&gt;SENSOR (HUMIDITY, TEMP, ...)

USE AT YOUR OWN RISK...

Copyright (C) 2014 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="HS1101">
<description>&lt;pre&gt; HS1101LF [MEASUE_SPEC,HPP801A031] SENSOR HUMIDITY CAPACITIVE THRU</description>
</package>
</packages>
</library>
<library name="C-C">
<description>&lt;pre&gt; MULTILAYER CERAMIC CHIP CAPACITORS

Type: C1005 [EIA CC0402], C1608 [EIA CC0603], C2012 [EIA CC0805],
C3216 [EIA CC1206], C3225 [EIA CC1210], C4532 [EIA CC1812], C5750 [EIA CC2220]

CH 0±60 ppm/°C -25 to +85°C
C0G 0±30 ppm/°C -55 to +125°C
JB ±10% -25 to +85°C
X5R ±15% -55 to +85°C
X6S ±22% -55 to +105°C
X7R ±15% -55 to +125°C
X7S ±22% -55 to +125°C
X7T +22/-33% -55 to +125°C

TDK voltage cods
0G 4V
0J 6.3V
1A 10V
1C 16V
1E 25V
1V 35V
1H 50V
2A 100V
2E 250V
2V 350V
2W 450V
2J 630V

NOTE: rounded pads... http://www.kemet.com/kemet/web/homepage/kfbk3.nsf/vaFeedbackFAQ/2209BDBA03843BBF85256BCD004EBC11/$file/f2100e.pdf
See section on Tombstoneing. Lead free solder may not wet edges, and IPC does not allow exposed copper. 
My (rsutherland@epccs) experience suggest highly rounded pads reduce solder beads that can be extruded along edges of larger capacitors (0805).

USE AT YOUR OWN RISK...

Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="C0603(1608)">
<description>&lt;pre&gt;EIA 0603 (Metric Code Size 1608) Ceramic Chip Capacitor
rounded pads are added in IPC 782 rev A, this pad was on Arduino Due and may have originated from Sparkfun.
http://www.kemet.com/kemet/web/homepage/kfbk3.nsf/vaFeedbackFAQ/2209BDBA03843BBF85256BCD004EBC11/$file/f2100e.pdf</description>
</package>
</packages>
</library>
<library name="R-C">
<description>&lt;pre&gt;CHIP RESISTOR
NOTE: rounded pads... http://www.kemet.com/kemet/web/homepage/kfbk3.nsf/vaFeedbackFAQ/2209BDBA03843BBF85256BCD004EBC11/$file/f2100e.pdf
See section on Tombstoneing. Lead free solder may not wet edges, and IPC does not allow exposed copper. 
My (rsutherland@epccs) experience suggest highly rounded pads reduce solder beads that can be extruded along edges of larger capacitors (0805).

USE AT YOUR OWN RISK...
 
Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="C0805(2012)">
<description>&lt;pre&gt;EIA 0805 (Metric Code Size 2012) Ceramic Chip
rounded pads are added in IPC 782 rev A
http://www.kemet.com/kemet/web/homepage/kfbk3.nsf/vaFeedbackFAQ/2209BDBA03843BBF85256BCD004EBC11/$file/f2100e.pdf</description>
</package>
</packages>
</library>
<library name="J-HDR3.5mm">
<description>&lt;pre&gt;HEADER 3.5MM center to center
USE AT YOUR OWN RISK...
 
Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="MCV2">
<description>&lt;pre&gt;MCV 1,5/2-G-3,5-RN [PHOENIX CONTACT,1731471] CONN HEADER SHROUDED 2POS 3.5MM
PST 1,0/2-3,5 [PHOENIX CONTACT,1945096] CONN HEADER STRIP PIN 2POS 3.5MM

Drill Size 3/64": .0469" (1.2mm)</description>
</package>
</packages>
</library>
<library name="Q-PNP">
<description>&lt;pre&gt;PNP Bipolar junction transistor

USE AT YOUR OWN RISK...

Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="SOT23">
<description>&lt;pre&gt;SOT23 (based on SOT23-6) pin 1 is alone (Cathode)
http://www.diodes.com/_files/zetex_files/pack/SOT23-6.pdf
center(1) to center(2,3) 2.2 mm
center(2) to center(3) 1.9mm
pad .65X x 1.06Y mm</description>
</package>
</packages>
</library>
<library name="Q-NPN">
<description>&lt;pre&gt;NPN Bipolar junction transistor

USE AT YOUR OWN RISK...

Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="SOT23">
<description>&lt;pre&gt;SOT23 (based on SOT23-6) pin 1 is alone (Cathode)
http://www.diodes.com/_files/zetex_files/pack/SOT23-6.pdf
center(1) to center(2,3) 2.2 mm
center(2) to center(3) 1.9mm
pad .65X x 1.06Y mm</description>
</package>
</packages>
</library>
<library name="D-GP">
<description>&lt;pre&gt;GEN PURPOSE DIODE
USE AT YOUR OWN RISK...

Copyright (C) 2013 Ronald Steven Sutherland
Released under the Creative Commons 
Attribution Share-Alike 3.0 License
http://creativecommons.org/licenses/by-sa/3.0</description>
<packages>
<package name="SOD123">
<description>&lt;pre&gt;SOD123
http://www.diodes.com/datasheets/ap02001.pdf</description>
</package>
</packages>
</library>
<library name="U-Linear">
<description>&lt;pre&gt;Linear Amplifiers, Sensor Interfaces

USE AT YOUR OWN RISK...

    Copyright (C) 2015 Ronald Sutherland
    Released under the Creative Commons 
    Attribution-ShareAlike 4.0 International
    http://creativecommons.org/licenses/by-sa/4.0</description>
<packages>
<package name="SOT23">
<description>&lt;pre&gt;SOT23 (based on SOT23-6) pin 1 is alone (Cathode)
http://www.diodes.com/_files/zetex_files/pack/SOT23-6.pdf
center(1) to center(2,3) 2.2 mm
center(2) to center(3) 1.9mm
pad .65X x 1.06Y mm</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U2" library="U-Time" package="SOIC8" value="ICM7555">
<attribute name="NAME"/>
</element>
<element name="C3" library="C-C" package="C0603(1608)" value="1nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="R-C" package="C0805(2012)" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="U-Sensor" package="HS1101" value="">
<attribute name="NAME"/>
</element>
<element name="Q10" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q9" library="Q-NPN" package="SOT23" value="K1N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q8" library="Q-NPN" package="SOT23" value="K1N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q11" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="R-C" package="C0805(2012)" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="R-C" package="C0805(2012)" value="*470k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="D-GP" package="SOD123" value="T4">
<attribute name="NAME"/>
</element>
<element name="D2" library="D-GP" package="SOD123" value="T4">
<attribute name="NAME"/>
</element>
<element name="J1" library="J-HDR3.5mm" package="MCV2" value="PST1,0/2-3,5">
<attribute name="NAME"/>
</element>
<element name="C1" library="C-C" package="C0603(1608)" value="470pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="U-Linear" package="SOT23" value="TLVH431">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="R-C" package="C0805(2012)" value="309">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="R-C" package="C0805(2012)" value="93.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="R-C" package="C0805(2012)" value="49.9k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="R-C" package="C0805(2012)" value="100">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q2" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="R-C" package="C0805(2012)" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q1" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q4" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q3" library="Q-PNP" package="SOT23" value="K3N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="C-C" package="C0603(1608)" value="10nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q5" library="Q-NPN" package="SOT23" value="K1N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q6" library="Q-NPN" package="SOT23" value="K1N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q7" library="Q-NPN" package="SOT23" value="K1N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="R-C" package="C0805(2012)" value="49.9k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="C-C" package="C0603(1608)" value="1nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="RAMP">
<contactref element="U2" pad="6"/>
<contactref element="U2" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="D2" pad="C"/>
<contactref element="D1" pad="A"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="+5V">
<contactref element="U2" pad="8"/>
<contactref element="U2" pad="4"/>
<contactref element="C3" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="Q1" pad="C"/>
<contactref element="R6" pad="2"/>
<contactref element="U1" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="U2" pad="3"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="PULSE">
<contactref element="U2" pad="7"/>
<contactref element="Q3" pad="C"/>
</signal>
<signal name="N$1">
<contactref element="Q10" pad="C"/>
<contactref element="R9" pad="2"/>
<contactref element="Q10" pad="B"/>
<contactref element="Q11" pad="B"/>
</signal>
<signal name="N$5">
<contactref element="Q9" pad="E"/>
<contactref element="Q11" pad="E"/>
<contactref element="Q8" pad="E"/>
<contactref element="Q10" pad="E"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="Q9" pad="B"/>
<contactref element="Q8" pad="B"/>
<contactref element="Q8" pad="C"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="0V">
<contactref element="R9" pad="1"/>
<contactref element="C5" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="U2" pad="1"/>
<contactref element="J1" pad="2"/>
<contactref element="U1" pad="3"/>
<contactref element="C1" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="C2" pad="2"/>
<contactref element="Q5" pad="E"/>
<contactref element="Q6" pad="E"/>
<contactref element="Q7" pad="E"/>
<contactref element="C4" pad="2"/>
</signal>
<signal name="LOOP-IN">
<contactref element="J1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="Q2" pad="E"/>
<contactref element="Q4" pad="E"/>
<contactref element="R2" pad="2"/>
<contactref element="C2" pad="1"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="Q11" pad="C"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="N$8">
<contactref element="Q9" pad="C"/>
<contactref element="D1" pad="C"/>
</signal>
<signal name="N$3">
<contactref element="R1" pad="1"/>
<contactref element="Q1" pad="E"/>
<contactref element="Q2" pad="B"/>
</signal>
<signal name="N$9">
<contactref element="Q1" pad="B"/>
<contactref element="Q2" pad="C"/>
<contactref element="Q6" pad="C"/>
</signal>
<signal name="N$10">
<contactref element="R2" pad="1"/>
<contactref element="Q3" pad="E"/>
<contactref element="Q4" pad="B"/>
</signal>
<signal name="N$12">
<contactref element="Q3" pad="B"/>
<contactref element="Q4" pad="C"/>
<contactref element="Q7" pad="C"/>
</signal>
<signal name="N$14">
<contactref element="U1" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="R4" pad="2"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="Q5" pad="C"/>
<contactref element="Q5" pad="B"/>
<contactref element="R6" pad="1"/>
<contactref element="Q6" pad="B"/>
<contactref element="Q7" pad="B"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
