<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<text>LM35</text>
<text>GND</text>
<text>VTEMP</text>
<text>+5V</text>
<text>+5V</text>
<text>0V</text>
<text>-5V</text>
<text>+5V</text>
<text>-5V</text>
<text>VSENSE</text>
<text>RESET</text>
<text>Vc</text>
<text>Vs</text>
<text>Ve</text>
<text>RS</text>
<text>RW</text>
<text>E</text>
<text>D4</text>
<text>D5</text>
<text>D6</text>
<text>D7</text>
<text>LCD</text>
<text>Carlos A. Neves &lt;caneves@gmail.com&gt;</text>
<text>Creative</text>
<text>Commons</text>
<text>pHduino</text>
<text>https://github.com/hephesto/phduino</text>
<text>by Neves</text>
<text>STATUS</text>
<text>v0.2</text>
<text>pHduino</text>
<text>v0.3</text>
<text>https://github.com/hephesto/phduino</text>
<text>by Neves</text>
<text>v3.0</text>
<text>+5V</text>
<text>0V</text>
<text>-5V</text>
<text>GAIN</text>
<text>LCD CONTRAST</text>
<text>LCD</text>
<text>+5V</text>
<text>VTEMP</text>
<text>GND</text>
<text>RESET</text>
<text>VSENSE</text>
<text>LM35</text>
<text>-5V</text>
<text>+5V</text>
<text>STATUS</text>
<text>CTRL</text>
<text>CTRL</text>
<text>BUZZER</text>
<text>LCD CONTRAST</text>
<text>OFFSET</text>
<text>E</text>
<text>RW</text>
<text>RS</text>
<text>D4</text>
<text>D5</text>
<text>D6</text>
<text>D7</text>
<text>VREF</text>
<text>VREF</text>
<text>LAIA</text>
<text>BioMicS</text>
<text>FAPESP</text>
<text>USP</text>
<text>+</text>
<text>+</text>
<text>BioMicS</text>
<text>FAPESP</text>
<text>USP</text>
<text>LAIA</text>
<text>GND</text>
<text>GND</text>
<text>OFFSET</text>
<text>GAIN</text>
<text>+</text>
<text>CC v3.0</text>
<wire x1="17.78" y1="67.31" x2="17.78" y2="13.97" width="0.1524" layer="20"/>
<wire x1="17.78" y1="13.97" x2="83.82" y2="13.97" width="0.1524" layer="20"/>
<wire x1="83.82" y1="13.97" x2="83.82" y2="16.51" width="0.1524" layer="20"/>
<wire x1="83.82" y1="16.51" x2="86.995" y2="19.685" width="0.1524" layer="20"/>
<wire x1="86.995" y1="19.685" x2="86.995" y2="52.07" width="0.1524" layer="20"/>
<wire x1="86.995" y1="52.07" x2="83.82" y2="55.245" width="0.1524" layer="20"/>
<wire x1="83.82" y1="55.245" x2="83.82" y2="66.04" width="0.1524" layer="20"/>
<wire x1="83.82" y1="66.04" x2="82.55" y2="67.31" width="0.1524" layer="20"/>
<wire x1="82.55" y1="67.31" x2="17.78" y2="67.31" width="0.1524" layer="20"/>
</plain>
<libraries>
<library name="Arduino-Various">
<packages>
<package name="SHIELD-NOTEXT">
<description>Unnamed long Solderpads eg. for homemade etched PCBs</description>
</package>
</packages>
</library>
<library name="con-coax">
<packages>
<package name="AMP_227161">
<description>&lt;b&gt;JACK,  RIGHT ANGLE, 50 OHM, PCB, BNC&lt;/b&gt;&lt;p&gt;
Source: amp_227161.pdf</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="0207/2V">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 2.5 mm</description>
</package>
<package name="C050-025X075">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.5 x 7.5 mm</description>
</package>
<package name="RTRIM43P">
<description>&lt;b&gt;Trimm resistor&lt;/b&gt; Spectrol&lt;p&gt;
waschfest MIL-R-22097</description>
</package>
<package name="E2,5-7">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.54 mm, diameter 7 mm</description>
</package>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
<package name="0207/5V">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 5 mm</description>
</package>
<package name="0207/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 7.5 mm</description>
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="DO35Z10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 10.16mm</description>
</package>
</packages>
</library>
<library name="pinhead">
<packages>
<package name="1X02">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="2X05">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X01">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="linear">
<packages>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="led">
<packages>
<package name="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
</packages>
</library>
<library name="SparkFun">
<packages>
<package name="TACTILE-PTH">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="buzzer">
<packages>
<package name="F/TMB">
<description>&lt;b&gt;BUZZER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="ICL7660">
<description>&lt;B&gt;TC7660 Charge Pump DC-to-DC Voltage Converter&lt;/B&gt; - Version 1.0
&lt;P&gt;
&lt;AUTHOR&gt;Federico Battaglin&lt;BR&gt;E-mail: info@febat.com&lt;BR&gt;Web site: www.febat.com&lt;/AUTHOR&gt;</description>
<packages>
<package name="DIL8">
<description>DIL8</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="MCU1" library="Arduino-Various" package="SHIELD-NOTEXT" value="ARDUINO-USBLONG_PADS_NO_TEXT"/>
<element name="X1" library="con-coax" package="AMP_227161" value="1-227161-0"/>
<element name="R1" library="rcl" package="0207/5V" value="10k"/>
<element name="R9" library="rcl" package="0207/10" value="4k53"/>
<element name="R11" library="rcl" package="0207/10" value="1k"/>
<element name="R13" library="rcl" package="0207/2V" value="1k"/>
<element name="R14" library="rcl" package="0207/2V" value="1k"/>
<element name="C5" library="rcl" package="C050-025X075" value="100n"/>
<element name="C7" library="rcl" package="C050-025X075" value="100n"/>
<element name="D1" library="diode" package="DO35Z10" value="BZX55C5V1"/>
<element name="JP1" library="pinhead" package="1X01" value=""/>
<element name="IC1" library="linear" package="DIL08" value="TL052P"/>
<element name="LED1" library="led" package="LED3MM" value=""/>
<element name="LED2" library="led" package="LED3MM" value=""/>
<element name="C2" library="rcl" package="C050-025X075" value="100n"/>
<element name="C1" library="rcl" package="C050-025X075" value="100n"/>
<element name="R6" library="rcl" package="0207/2V" value="10k"/>
<element name="R7" library="rcl" package="0207/5V" value="10k"/>
<element name="JP6" library="pinhead" package="1X03" value=""/>
<element name="C8" library="rcl" package="C050-025X075" value="100n"/>
<element name="C9" library="rcl" package="C050-025X075" value="100n"/>
<element name="C10" library="rcl" package="E2,5-7" value="1000uFx6.3V"/>
<element name="C11" library="rcl" package="E2,5-7" value="1000uFx6.3V"/>
<element name="JP7" library="pinhead" package="1X03" value=""/>
<element name="S1" library="SparkFun" package="TACTILE-PTH" value=""/>
<element name="JP8" library="pinhead" package="2X05" value=""/>
<element name="R16" library="rcl" package="RTRIM43P" value="10k"/>
<element name="R12" library="rcl" package="0207/7" value="1k"/>
<element name="LED3" library="led" package="LED3MM" value=""/>
<element name="R8" library="rcl" package="0207/2V" value="10k"/>
<element name="C6" library="rcl" package="C050-025X075" value="100n"/>
<element name="S2" library="SparkFun" package="TACTILE-PTH" value=""/>
<element name="SG1" library="buzzer" package="F/TMB" value="F/TMB"/>
<element name="JP4" library="pinhead" package="1X02" value=""/>
<element name="JP5" library="pinhead" package="1X02" value=""/>
<element name="R15" library="rcl" package="0207/2V" value="1k"/>
<element name="C13" library="rcl" package="C050-025X075" value="100n"/>
<element name="JP2" library="pinhead" package="1X01" value=""/>
<element name="C12" library="rcl" package="C050-025X075" value="100n"/>
<element name="R2" library="rcl" package="RTRIM43P" value="100k"/>
<element name="JP3" library="pinhead" package="1X01" value=""/>
<element name="R4" library="rcl" package="0207/5V" value="1k"/>
<element name="R5" library="rcl" package="0207/5V" value="1k"/>
<element name="R3" library="rcl" package="RTRIM43P" value="1k"/>
<element name="C4" library="rcl" package="C050-025X075" value="100n"/>
<element name="C3" library="rcl" package="C050-025X075" value="100n"/>
<element name="R10" library="rcl" package="0207/10" value="1k13"/>
<element name="IC2" library="ICL7660" package="DIL8" value="ICL7660"/>
</elements>
<signals>
<signal name="3V3">
<contactref element="MCU1" pad="3V3"/>
</signal>
<signal name="GND">
<contactref element="X1" pad="2"/>
<contactref element="D1" pad="A"/>
<contactref element="MCU1" pad="GND0"/>
<contactref element="LED1" pad="K"/>
<contactref element="LED2" pad="A"/>
<contactref element="C1" pad="2"/>
<contactref element="C7" pad="1"/>
<contactref element="JP6" pad="3"/>
<contactref element="JP7" pad="2"/>
<contactref element="R16" pad="3"/>
<contactref element="LED3" pad="K"/>
<contactref element="S2" pad="4"/>
<contactref element="S2" pad="3"/>
<contactref element="SG1" pad="-"/>
<contactref element="MCU1" pad="GND1"/>
<contactref element="MCU1" pad="GND2"/>
<contactref element="JP5" pad="2"/>
<contactref element="JP4" pad="1"/>
<contactref element="JP8" pad="2"/>
<contactref element="C8" pad="1"/>
<contactref element="C11" pad="+"/>
<contactref element="C12" pad="1"/>
<contactref element="S1" pad="2"/>
<contactref element="S1" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="C6" pad="1"/>
<contactref element="JP3" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="R10" pad="2"/>
<contactref element="C4" pad="1"/>
<contactref element="C13" pad="1"/>
<contactref element="IC2" pad="3"/>
</signal>
<signal name="N$2">
<contactref element="X1" pad="1"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="IC1" pad="7"/>
<contactref element="R11" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="+5V">
<contactref element="MCU1" pad="5V"/>
<contactref element="JP6" pad="1"/>
<contactref element="IC1" pad="8"/>
<contactref element="C1" pad="1"/>
<contactref element="JP7" pad="1"/>
<contactref element="R16" pad="1"/>
<contactref element="JP8" pad="1"/>
<contactref element="R15" pad="2"/>
<contactref element="R13" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R9" pad="1"/>
<contactref element="IC2" pad="8"/>
</signal>
<signal name="VPH">
<contactref element="MCU1" pad="A_0"/>
<contactref element="D1" pad="C"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="IC1" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="IC1" pad="1"/>
<contactref element="JP1" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="VTEMP">
<contactref element="JP6" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="MCU1" pad="A_2"/>
</signal>
<signal name="N$10">
<contactref element="C10" pad="+"/>
<contactref element="IC2" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="C10" pad="-"/>
<contactref element="IC2" pad="4"/>
</signal>
<signal name="-5V">
<contactref element="JP7" pad="3"/>
<contactref element="R14" pad="2"/>
<contactref element="C11" pad="-"/>
<contactref element="C12" pad="2"/>
<contactref element="IC1" pad="4"/>
<contactref element="C2" pad="2"/>
<contactref element="R5" pad="1"/>
<contactref element="IC2" pad="5"/>
</signal>
<signal name="N$13">
<contactref element="R16" pad="2"/>
<contactref element="JP8" pad="3"/>
</signal>
<signal name="LCD_E">
<contactref element="JP8" pad="9"/>
<contactref element="MCU1" pad="8"/>
</signal>
<signal name="LCD_RS">
<contactref element="JP8" pad="5"/>
<contactref element="MCU1" pad="6"/>
</signal>
<signal name="LCD_DB4">
<contactref element="JP8" pad="10"/>
<contactref element="MCU1" pad="9"/>
</signal>
<signal name="LCD_DB5">
<contactref element="JP8" pad="8"/>
<contactref element="MCU1" pad="10"/>
</signal>
<signal name="LCD_DB6">
<contactref element="JP8" pad="6"/>
<contactref element="MCU1" pad="11"/>
</signal>
<signal name="LCD_DB7">
<contactref element="JP8" pad="4"/>
<contactref element="MCU1" pad="12"/>
</signal>
<signal name="LED_STATUS">
<contactref element="MCU1" pad="13"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="RESET">
<contactref element="MCU1" pad="RESET"/>
<contactref element="S1" pad="3"/>
<contactref element="S1" pad="4"/>
<contactref element="JP4" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="IC1" pad="6"/>
<contactref element="C5" pad="1"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$15">
<contactref element="R7" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="CTRL">
<contactref element="MCU1" pad="2"/>
<contactref element="S2" pad="2"/>
<contactref element="S2" pad="1"/>
<contactref element="JP5" pad="1"/>
<contactref element="R15" pad="1"/>
<contactref element="C13" pad="2"/>
</signal>
<signal name="BUZZER">
<contactref element="SG1" pad="+"/>
<contactref element="MCU1" pad="3"/>
</signal>
<signal name="LCD_RW">
<contactref element="JP8" pad="7"/>
<contactref element="MCU1" pad="7"/>
</signal>
<signal name="N$7">
<contactref element="R14" pad="1"/>
<contactref element="LED2" pad="K"/>
</signal>
<signal name="N$9">
<contactref element="LED1" pad="A"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$14">
<contactref element="LED3" pad="A"/>
<contactref element="R12" pad="2"/>
</signal>
<signal name="VIN">
<contactref element="MCU1" pad="VIN"/>
</signal>
<signal name="N$17">
<contactref element="R3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="VREF">
<contactref element="IC1" pad="5"/>
<contactref element="JP2" pad="1"/>
<contactref element="C7" pad="2"/>
<contactref element="MCU1" pad="A_1"/>
<contactref element="R10" pad="1"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="R3" pad="1"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="R3" pad="3"/>
<contactref element="R5" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
