<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.6.2">
<drawing>
<board>
<plain>
<wire x1="2" y1="-8.8" x2="26.8" y2="-8.8" width="0" layer="20"/>
<wire x1="26.8" y1="-8.8" x2="28.8" y2="-6.8" width="0" layer="20" curve="90"/>
<wire x1="28.8" y1="-6.8" x2="28.8" y2="6.8" width="0" layer="20"/>
<wire x1="28.8" y1="6.8" x2="26.8" y2="8.8" width="0" layer="20" curve="90"/>
<wire x1="26.8" y1="8.8" x2="2" y2="8.8" width="0" layer="20"/>
<wire x1="2" y1="8.8" x2="0" y2="6.8" width="0" layer="20" curve="90"/>
<wire x1="0" y1="6.8" x2="0" y2="-6.8" width="0" layer="20"/>
<wire x1="0" y1="-6.8" x2="2" y2="-8.8" width="0" layer="20" curve="90"/>
<text>AdaptiveBrightness_v2</text>
<text>2020-07-12</text>
<text>RST</text>
<text>CLK</text>
<text>IO</text>
<text>GND</text>
</plain>
<libraries>
<library name="Misc">
<packages>
<package name="KAN0444">
</package>
<package name="SOT23">
<description>&lt;b&gt;SOT-23&lt;/b&gt;</description>
</package>
<package name="R0805">
</package>
<package name="RGB_LED_1.6X1.6MM">
</package>
<package name="U-G-04DD-W-01">
</package>
<package name="1X04_2.54MM_SMD_PADS">
<description>&lt;h3&gt;SMD Pads - 4 Pin&lt;/h3&gt;
&lt;p&gt;Specifications:
&lt;ul&gt;&lt;li&gt;Pin count:4&lt;/li&gt;
&lt;li&gt;Pin pitch:0.1"&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Example device(s):
&lt;ul&gt;&lt;li&gt;CONN_04&lt;/li&gt;
&lt;/ul&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="OPL_Capacitor">
<description>&lt;b&gt;Seeed Open Parts Library (OPL) for the Seeed Fusion PCB Assembly Service
&lt;br&gt;&lt;br&gt;
&lt;a href="https://www.seeedstudio.com/opl.html" title="https://www.seeedstudio.com/opl.html"&gt;Seeed Fusion PCBA OPL&lt;/a&gt;&lt;br&gt;
&lt;a href="https://www.seeedstudio.com/fusion_pcb.html"&gt;Order PCB/PCBA&lt;/a&gt;&lt;br&gt;&lt;br&gt;
&lt;a href="https://www.seeedstudio.com"&gt;www.seeedstudio.com&lt;/a&gt;
&lt;br&gt;&lt;/b&gt;</description>
<packages>
<package name="C0805">
<description>&lt;b&gt;0805&lt;b&gt;&lt;p&gt;</description>
</package>
</packages>
</library>
<library name="STM32F042K6T6">
<packages>
<package name="QFP80P900X900X160-32N">
</package>
</packages>
</library>
<library name="OPL_Sensor-Transducer">
<description>Seeed Open Parts Library (OPL) for the Seeed Fusion PCB Assembly Service</description>
<packages>
<package name="SNR2-3.0">
</package>
</packages>
</library>
<library name="oshw">
<description>&lt;p&gt;&lt;strong&gt;Open Source Hardware PCB Logos&lt;/strong&gt;
&lt;p&gt;A simple polygon based version of the OSHWA logos for use on Eagle PCB's
&lt;p&gt;For use please refer to the OSHWA definition at &lt;a href="http://www.oshwa.org/definition/"&gt;http://www.oshwa.org/definition/&lt;/a&gt;
&lt;p&gt;Based on the NBitWonder version (&lt;a href="http://nbitwonder.com"&gt;http://nbitwonder.com&lt;/a&gt;)
&lt;p&gt;&lt;strong&gt;Andrew Cooper&lt;/strong&gt;&lt;br&gt;28Nov2016&lt;br&gt;&lt;a href="http://www.darkerview.com"&gt;www.DarkerView.com&lt;/a&gt;</description>
<packages>
<package name="OSHW_5MM">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="BOOT" library="Misc" package="KAN0444" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C10" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C12" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C11" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="OPL_Capacitor" package="C0805" value="100nF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="OPL_Capacitor" package="C0805" value="1µF">
<attribute name="MPN" value="CC0805KKX7R8BB105"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC1" library="STM32F042K6T6" package="QFP80P900X900X160-32N" value="STM32F042K6T6">
<attribute name="AVAILABILITY" value="Unavailable"/>
<attribute name="DESCRIPTION" value=" ARM® Cortex®-M0 STM32F0 Microcontroller IC 32-Bit 48MHz 32KB (32K x 8) FLASH 32-LQFP (7x7) "/>
<attribute name="DIGIKEY-PURCHASE-URL" value="https://snapeda.com/shop?store=DigiKey&amp;id=226822"/>
<attribute name="MF" value="STMicroelectronics"/>
<attribute name="MP" value="STM32F042K6T6"/>
<attribute name="NAME"/>
<attribute name="PACKAGE" value="LQFP-32 STMicroelectronics"/>
<attribute name="PRICE" value="None"/>
<attribute name="VALUE"/>
</element>
<element name="LDO1" library="Misc" package="SOT23" value="AP2125N-3.3">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LDO2" library="Misc" package="SOT23" value="AP2125N-3.3">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LDR1" library="OPL_Sensor-Transducer" package="SNR2-3.0" value="GL5528">
<attribute name="MPN" value="PHOTORESISTOR-5528-10K"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LDR2" library="OPL_Sensor-Transducer" package="SNR2-3.0" value="GL5528">
<attribute name="MPN" value="PHOTORESISTOR-5528-10K"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LDR3" library="OPL_Sensor-Transducer" package="SNR2-3.0" value="GL5528">
<attribute name="MPN" value="PHOTORESISTOR-5528-10K"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="Misc" package="R0805" value="100">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="Misc" package="R0805" value="68">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="Misc" package="R0805" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="Misc" package="R0805" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="Misc" package="R0805" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="Misc" package="R0805" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="Misc" package="R0805" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="Misc" package="R0805" value="180">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="RGB1" library="Misc" package="RGB_LED_1.6X1.6MM" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SWD" library="Misc" package="1X04_2.54MM_SMD_PADS" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="USB1" library="Misc" package="U-G-04DD-W-01" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GOLD_ORB_SM1" library="oshw" package="OSHW_5MM" value="OSHWLOGOLOGO5MM"/>
</elements>
<signals>
<signal name="USB_P">
<contactref element="USB1" pad="3"/>
<contactref element="IC1" pad="22"/>
</signal>
<signal name="USB_N">
<contactref element="IC1" pad="21"/>
<contactref element="USB1" pad="2"/>
</signal>
<signal name="GND">
<contactref element="USB1" pad="4"/>
<contactref element="LDO1" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="C11" pad="1"/>
<contactref element="IC1" pad="16"/>
<contactref element="IC1" pad="32"/>
<contactref element="C3" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="C6" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="LDO2" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="C10" pad="1"/>
<contactref element="C12" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="R8" pad="1"/>
<contactref element="C7" pad="1"/>
<contactref element="C8" pad="1"/>
<contactref element="SWD" pad="P$1"/>
</signal>
<signal name="+3V3">
<contactref element="LDO1" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C11" pad="2"/>
<contactref element="IC1" pad="17"/>
<contactref element="IC1" pad="1"/>
<contactref element="C2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="BOOT" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="RGB1" pad="+"/>
</signal>
<signal name="LS1">
<contactref element="LDR1" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="LS2">
<contactref element="LDR2" pad="2"/>
<contactref element="R7" pad="2"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="LS3">
<contactref element="LDR3" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="+5V">
<contactref element="LDO1" pad="3"/>
<contactref element="C4" pad="2"/>
<contactref element="USB1" pad="1"/>
<contactref element="LDO2" pad="3"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="A+3V3">
<contactref element="LDO2" pad="2"/>
<contactref element="C10" pad="2"/>
<contactref element="C12" pad="2"/>
<contactref element="IC1" pad="5"/>
<contactref element="C7" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="LDR2" pad="1"/>
<contactref element="LDR3" pad="1"/>
<contactref element="LDR1" pad="1"/>
</signal>
<signal name="BOOT0">
<contactref element="IC1" pad="31"/>
<contactref element="C1" pad="1"/>
<contactref element="R4" pad="1"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="BOOT" pad="1"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="LED_B">
<contactref element="IC1" pad="15"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="LED_G">
<contactref element="IC1" pad="14"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="LED_R">
<contactref element="IC1" pad="13"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="RGB1" pad="R"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="RGB1" pad="G"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="RGB1" pad="B"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="RST">
<contactref element="SWD" pad="P$2"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="SWCLK">
<contactref element="SWD" pad="P$3"/>
<contactref element="IC1" pad="24"/>
</signal>
<signal name="SWDIO">
<contactref element="SWD" pad="P$4"/>
<contactref element="IC1" pad="23"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
