<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.6.2">
<drawing>
<board>
<plain>
<wire x1="-15" y1="-12.5" x2="15" y2="-12.5" width="0" layer="20"/>
<wire x1="15" y1="-12.5" x2="15" y2="12.5" width="0" layer="20"/>
<wire x1="15" y1="12.5" x2="-15" y2="12.5" width="0" layer="20"/>
<wire x1="-15" y1="12.5" x2="-15" y2="-12.5" width="0" layer="20"/>
<text>Brain</text>
<text>V0.1</text>
<text>Low-Cost Educational Toys, LLC</text>
<text>Cambridge, MA, USA</text>
<text>PA4</text>
<text>PA5</text>
<text>PA10</text>
<text>PA11</text>
<text>PA15</text>
<text>PA14</text>
<text>PA13</text>
<text>PA12</text>
<text>PA8</text>
<text>GND</text>
<text>VDD</text>
<text>PB14</text>
<text>PB15</text>
<text>PB22</text>
<text>PB23</text>
<text>PA9</text>
<text>PB4</text>
<text>PB7</text>
<text>claudioolmedo.com</text>
<text>Model: R53 V0.1</text>
<text>1</text>
<text>2</text>
<text>3</text>
<text>4</text>
<text>5</text>
<text>6</text>
<text>7</text>
<text>8</text>
<text>9</text>
<text>10</text>
<text>3V3</text>
<text>GND</text>
<text>11</text>
<text>12</text>
<text>13</text>
<text>14</text>
<text>15</text>
<text>16</text>
<text>www.lce.toys</text>
<text>Rev. 1  Nov/22</text>
<text>Desing by:</text>
</plain>
<libraries>
<library name="CH582M">
<packages>
<package name="C1">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
<package name="SOD8037X250N">
<description>SOD, 8.00 mm span, 6.05 X 3.70 X 2.50 mm body
&lt;p&gt;SOD package with 8.00 mm span with body size 6.05 X 3.70 X 2.50 mm&lt;/p&gt;</description>
</package>
<package name="61300911821">
<description>&lt;B&gt;WR-PHD &lt;/B&gt;&lt;BR&gt;2.54 mm Socket Header, 9 Pins</description>
</package>
<package name="RESC3025X120N">
<description>Chip, 3.00 X 2.50 X 1.20 mm body
&lt;p&gt;Chip package with body size 3.00 X 2.50 X 1.20 mm&lt;/p&gt;</description>
</package>
<package name="R0402">
<description>&lt;b&gt;Chip RESISTOR 0402 EIA (1005 Metric)&lt;/b&gt;</description>
</package>
<package name="QFN40P400X400X75-29T280N">
<description>28-QFN, 0.40 mm pitch, 4.00 X 4.00 X 0.75 mm body, 2.80 X 2.80 mm thermal pad
&lt;p&gt;28-pin QFN package with 0.40 mm pitch with body size 4.00 X 4.00 X 0.75 mm and thermal pad size 2.80 X 2.80 mm&lt;/p&gt;</description>
</package>
<package name="CAPCP3015X50N">
<description>Chip, 3.01 X 1.51 X 0.50 mm body
&lt;p&gt;Chip package with body size 3.01 X 1.51 X 0.50 mm&lt;/p&gt;</description>
</package>
<package name="SOT95P240X90-3N">
<description>3-SOT23, 0.95 mm pitch, 2.40 mm span, 2.90 X 1.30 X 0.90 mm body
&lt;p&gt;3-pin SOT23 package with 0.95 mm pitch, 2.40 mm span with body size 2.90 X 1.30 X 0.90 mm&lt;/p&gt;</description>
</package>
<package name="629722000214">
</package>
<package name="OSCCC200X160X50N">
<description>Oscillator Corner Concave, 2.00 X 1.60 X 0.50 mm body
&lt;p&gt;Oscillator Corner Concave package with body size 2.00 X 1.60 X 0.50 mm&lt;/p&gt;</description>
</package>
<package name="XTAL700X315X230N">
<description>Crystal, 7.00 X 3.15 X 2.30 mm body
&lt;p&gt;Crystal package with body size 7.00 X 3.15 X 2.30 mm&lt;/p&gt;</description>
</package>
<package name="CAPCP1005X40N">
<description>Chip, 1.00 X 0.50 X 0.40 mm body
&lt;p&gt;Chip package with body size 1.00 X 0.50 X 0.40 mm&lt;/p&gt;</description>
</package>
<package name="1X01">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="CH582M" package="C1" value="0.1uF">
<attribute name="LCSC" value="C106209"/>
<attribute name="PRICE-1" value="0.0014"/>
<attribute name="PRICE-100" value="0.0014"/>
<attribute name="PRICE-1000" value="0.0011"/>
</element>
<element name="C2" library="CH582M" package="C1" value="2.2uF">
<attribute name="LCSC" value="C326556"/>
<attribute name="PRICE-1" value="0.0176"/>
<attribute name="PRICE-100" value="0.0176"/>
<attribute name="PRICE-1000" value="0.0148"/>
</element>
<element name="C3" library="CH582M" package="C1" value="2.2uF">
<attribute name="LCSC" value="C326556"/>
<attribute name="PRICE-1" value="0.0176"/>
<attribute name="PRICE-100" value="0.0176"/>
<attribute name="PRICE-1000" value=" 0.0148"/>
</element>
<element name="C4" library="CH582M" package="C1" value="2.2uF">
<attribute name="LCSC" value="C326556"/>
<attribute name="PRICE-1" value="0.0176"/>
<attribute name="PRICE-100" value="0.0176"/>
<attribute name="PRICE-1000" value="0.0148"/>
</element>
<element name="C6" library="CH582M" package="C1" value="1uF">
<attribute name="LCSC" value="C14445"/>
<attribute name="PRICE-1" value="0.0018"/>
<attribute name="PRICE-100" value="0.0018"/>
<attribute name="PRICE-1000" value="0.0014"/>
</element>
<element name="C7" library="CH582M" package="C1" value="1uF">
<attribute name="LCSC" value="C14445"/>
<attribute name="PRICE-1" value="0.0018"/>
<attribute name="PRICE-100" value="0.0018"/>
<attribute name="PRICE-1000" value="0.0014"/>
</element>
<element name="C9" library="CH582M" package="C1" value="2.2uF">
<attribute name="LCSC" value="C326556"/>
<attribute name="PRICE-1" value="0.0167"/>
<attribute name="PRICE-100" value="0.0167"/>
<attribute name="PRICE-1000" value="0.0136"/>
</element>
<element name="D/L" library="CH582M" package="SOD8037X250N" value="BUTTON">
<attribute name="LCSC" value="C118141"/>
<attribute name="NAME"/>
<attribute name="PRICE-1" value="0.069"/>
<attribute name="PRICE-100" value="0.0575"/>
<attribute name="PRICE-1000" value="0.0475"/>
<attribute name="VALUE"/>
</element>
<element name="H1" library="CH582M" package="61300911821" value="NC">
<attribute name="VALUE"/>
</element>
<element name="H2" library="CH582M" package="61300911821" value="NC">
<attribute name="VALUE"/>
</element>
<element name="KEY" library="CH582M" package="SOD8037X250N" value="BUTTON">
<attribute name="LCSC" value="C118141"/>
<attribute name="NAME"/>
<attribute name="PRICE-1" value="0.069"/>
<attribute name="PRICE-100" value="0.0575"/>
<attribute name="PRICE-1000" value="0.0475"/>
<attribute name="VALUE"/>
</element>
<element name="L1" library="CH582M" package="RESC3025X120N" value="L1">
<attribute name="LCSC" value="C135235"/>
<attribute name="PRICE-1" value="0.0590"/>
<attribute name="PRICE-100" value="0.0487"/>
<attribute name="PRICE-1000" value="0.0358"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="CH582M" package="R0402" value="5.1K">
<attribute name="LCSC" value="C105872"/>
<attribute name="LCSC_PART" value=""/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0005"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="CH582M" package="R0402" value="5.1K">
<attribute name="LCSC" value="C105872"/>
<attribute name="LCSC_PART" value=""/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0005"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="CH582M" package="R0402" value="5.1K">
<attribute name="LCSC" value="C105872"/>
<attribute name="LCSC_PART" value=""/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0005"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="CH582M" package="R0402" value="5.1K">
<attribute name="LCSC" value="C105872"/>
<attribute name="LCSC_PART" value=""/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0005"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="RST" library="CH582M" package="SOD8037X250N" value="BUTTON">
<attribute name="LCSC" value="C118141"/>
<attribute name="NAME"/>
<attribute name="PRICE-1" value="0.069"/>
<attribute name="PRICE-100" value="0.0575"/>
<attribute name="PRICE-1000" value="0.0475"/>
<attribute name="VALUE"/>
</element>
<element name="U$8" library="CH582M" package="QFN40P400X400X75-29T280N" value="RISC-V">
<attribute name="LCSC" value="C3001175"/>
<attribute name="PRICE-1" value="1.031"/>
<attribute name="PRICE-100" value="0.6794"/>
<attribute name="PRICE-1000" value="0.6141"/>
<attribute name="VALUE"/>
</element>
<element name="U$9" library="CH582M" package="CAPCP3015X50N" value="ANTENNA">
<attribute name="LCSC" value="C2900839"/>
<attribute name="PRICE-1" value="0.0577"/>
<attribute name="PRICE-100" value="0.046"/>
<attribute name="PRICE-1000" value="0.0402"/>
<attribute name="VALUE"/>
</element>
<element name="U1" library="CH582M" package="SOT95P240X90-3N" value="U1">
<attribute name="LCSC" value="C347376"/>
<attribute name="PRICE-1" value="0.0219"/>
<attribute name="PRICE-100" value="0.0219"/>
<attribute name="PRICE-1000" value="0.0148"/>
<attribute name="VALUE"/>
</element>
<element name="USB1" library="CH582M" package="629722000214" value="629722000214">
<attribute name="APPLICATION" value="USB 2.0"/>
<attribute name="DATASHEET-URL" value="https://www.we-online.com/redexpert/spec/629722000214?ae"/>
<attribute name="GERDER" value="Receptacle"/>
<attribute name="INTERFACE-TYPE" value="Type C"/>
<attribute name="IR" value="5A"/>
<attribute name="LCSC" value="C709357"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="NAME"/>
<attribute name="PACKAGING" value="Tape and Reel"/>
<attribute name="PART-NUMBER" value="629722000214"/>
<attribute name="PINS" value=" 16 "/>
<attribute name="PRICE-1" value="0.0767"/>
<attribute name="PRICE-100" value="0.062"/>
<attribute name="PRICE-1000" value="0.0446"/>
<attribute name="TYPE" value="Horizontal"/>
<attribute name="WORKING-VOLTAGE" value="20V(AC)"/>
</element>
<element name="USB2" library="CH582M" package="629722000214" value="629722000214">
<attribute name="APPLICATION" value="USB 2.0"/>
<attribute name="DATASHEET-URL" value="https://www.we-online.com/redexpert/spec/629722000214?ae"/>
<attribute name="E" value="1"/>
<attribute name="GERDER" value="Receptacle"/>
<attribute name="INTERFACE-TYPE" value="Type C"/>
<attribute name="IR" value="5A"/>
<attribute name="LCSC" value="C709357"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="NAME"/>
<attribute name="PACKAGING" value="Tape and Reel"/>
<attribute name="PART-NUMBER" value="629722000214"/>
<attribute name="PINS" value=" 16 "/>
<attribute name="PRICE-1" value="0.0767"/>
<attribute name="PRICE-100" value="0.062"/>
<attribute name="PRICE-1000" value="0.0446"/>
<attribute name="TYPE" value="Horizontal"/>
<attribute name="WORKING-VOLTAGE" value="20V(AC)"/>
</element>
<element name="Y1" library="CH582M" package="OSCCC200X160X50N" value="Y1YSX211SL">
<attribute name="LCSC" value="C2682773"/>
<attribute name="PRICE-1" value="0.1077"/>
<attribute name="PRICE-100" value="0.0871"/>
<attribute name="PRICE-1000" value="0.069"/>
<attribute name="VALUE"/>
</element>
<element name="Y2" library="CH582M" package="XTAL700X315X230N" value="32.768K">
<attribute name="LCSC" value="C3034396"/>
<attribute name="PRICE-1" value="0.1254"/>
<attribute name="PRICE-100" value="0.1013"/>
<attribute name="PRICE-1000" value="0.0802"/>
<attribute name="VALUE"/>
</element>
<element name="PWD" library="CH582M" package="CAPCP1005X40N" value="">
<attribute name="LCSC" value="C434447"/>
<attribute name="NAME"/>
<attribute name="PRICE-1" value="0.0140"/>
<attribute name="PRICE-100" value="0.0140"/>
<attribute name="PRICE-1000" value="0.0111"/>
<attribute name="VALUE"/>
</element>
<element name="LED" library="CH582M" package="CAPCP1005X40N" value="">
<attribute name="LCSC" value="C434447"/>
<attribute name="NAME"/>
<attribute name="PRICE-1" value="0.0140"/>
<attribute name="PRICE-100" value="0.0140"/>
<attribute name="PRICE-1000" value="0.0111"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="CH582M" package="R0402" value="10kΩ">
<attribute name="LCSC" value="C25744"/>
<attribute name="LCSC_PART" value=""/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0004"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="CH582M" package="R0402" value="10kΩ">
<attribute name="LCSC" value="C25744"/>
<attribute name="LCSC_PART" value="C25744"/>
<attribute name="POPULARITY" value="34"/>
<attribute name="PRICE-1" value="0.0006"/>
<attribute name="PRICE-100" value="0.0006"/>
<attribute name="PRICE-1000" value="0.0004"/>
<attribute name="SPICEPREFIX" value="R"/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="CH582M" package="1X01" value="PIN">
<attribute name="LCSC" value="C213440"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="5V" library="CH582M" package="1X01" value="PIN">
<attribute name="LCSC" value="C213440"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="C1" pad="1"/>
<contactref element="C2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="Y1" pad="2"/>
<contactref element="Y1" pad="4"/>
<contactref element="U1" pad="1"/>
<contactref element="C6" pad="2"/>
<contactref element="C7" pad="1"/>
<contactref element="USB2" pad="A1"/>
<contactref element="USB2" pad="B1"/>
<contactref element="USB2" pad="A12"/>
<contactref element="USB2" pad="P$1"/>
<contactref element="USB2" pad="S1"/>
<contactref element="USB2" pad="S2"/>
<contactref element="USB2" pad="S3"/>
<contactref element="USB2" pad="S4"/>
<contactref element="USB2" pad="B12"/>
<contactref element="USB1" pad="B12"/>
<contactref element="USB1" pad="B1"/>
<contactref element="USB1" pad="A1"/>
<contactref element="USB1" pad="A12"/>
<contactref element="USB1" pad="P$1"/>
<contactref element="USB1" pad="S1"/>
<contactref element="USB1" pad="S2"/>
<contactref element="USB1" pad="S3"/>
<contactref element="USB1" pad="S4"/>
<contactref element="C9" pad="1"/>
<contactref element="U$8" pad="GND"/>
<contactref element="RST" pad="2"/>
<contactref element="D/L" pad="2"/>
<contactref element="KEY" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="H2" pad="9"/>
<contactref element="GND" pad="1"/>
<contactref element="PWD" pad="C"/>
<contactref element="LED" pad="C"/>
</signal>
<signal name="VDCIA">
<contactref element="U$8" pad="22"/>
<contactref element="C1" pad="2"/>
<contactref element="U$8" pad="3"/>
<contactref element="L1" pad="2"/>
<contactref element="C2" pad="1"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="VDD">
<contactref element="C4" pad="1"/>
<contactref element="U$8" pad="5"/>
<contactref element="U1" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="H2" pad="8"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="VSW">
<contactref element="L1" pad="1"/>
<contactref element="U$8" pad="4"/>
</signal>
<signal name="PB4">
<contactref element="U$8" pad="15"/>
<contactref element="KEY" pad="1"/>
<contactref element="H2" pad="2"/>
</signal>
<signal name="PB7">
<contactref element="U$8" pad="14"/>
<contactref element="H2" pad="1"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="PB10">
<contactref element="U$8" pad="13"/>
<contactref element="USB2" pad="A7"/>
<contactref element="USB2" pad="B7"/>
</signal>
<signal name="PB11">
<contactref element="U$8" pad="12"/>
<contactref element="USB2" pad="A6"/>
<contactref element="USB2" pad="B6"/>
</signal>
<signal name="PB12">
<contactref element="USB1" pad="B7"/>
<contactref element="U$8" pad="11"/>
<contactref element="USB1" pad="A7"/>
</signal>
<signal name="PB13">
<contactref element="USB1" pad="B6"/>
<contactref element="U$8" pad="10"/>
<contactref element="USB1" pad="A6"/>
</signal>
<signal name="PB14">
<contactref element="U$8" pad="9"/>
<contactref element="H2" pad="7"/>
</signal>
<signal name="PB15">
<contactref element="U$8" pad="8"/>
<contactref element="H2" pad="6"/>
</signal>
<signal name="X32MI">
<contactref element="Y1" pad="1"/>
<contactref element="U$8" pad="19"/>
</signal>
<signal name="X32MO">
<contactref element="Y1" pad="3"/>
<contactref element="U$8" pad="18"/>
</signal>
<signal name="PB22">
<contactref element="U$8" pad="17"/>
<contactref element="H2" pad="5"/>
<contactref element="D/L" pad="1"/>
</signal>
<signal name="PB23">
<contactref element="U$8" pad="16"/>
<contactref element="H2" pad="4"/>
<contactref element="RST" pad="1"/>
</signal>
<signal name="PA10">
<contactref element="Y2" pad="2"/>
<contactref element="U$8" pad="2"/>
<contactref element="H1" pad="3"/>
</signal>
<signal name="PA11">
<contactref element="Y2" pad="1"/>
<contactref element="U$8" pad="1"/>
<contactref element="H1" pad="4"/>
</signal>
<signal name="PA12">
<contactref element="U$8" pad="28"/>
<contactref element="H1" pad="8"/>
</signal>
<signal name="PA13">
<contactref element="U$8" pad="27"/>
<contactref element="H1" pad="7"/>
</signal>
<signal name="PA14">
<contactref element="U$8" pad="26"/>
<contactref element="H1" pad="6"/>
</signal>
<signal name="PA15">
<contactref element="U$8" pad="25"/>
<contactref element="H1" pad="5"/>
</signal>
<signal name="PA8">
<contactref element="U$8" pad="6"/>
<contactref element="H1" pad="9"/>
</signal>
<signal name="PA9">
<contactref element="U$8" pad="7"/>
<contactref element="H2" pad="3"/>
</signal>
<signal name="+5V">
<contactref element="USB2" pad="A4"/>
<contactref element="USB2" pad="A9"/>
<contactref element="USB2" pad="B9"/>
<contactref element="USB2" pad="B4"/>
<contactref element="USB1" pad="B4"/>
<contactref element="USB1" pad="B9"/>
<contactref element="USB1" pad="A4"/>
<contactref element="USB1" pad="A9"/>
<contactref element="U1" pad="3"/>
<contactref element="C7" pad="2"/>
<contactref element="5V" pad="1"/>
</signal>
<signal name="CC1">
<contactref element="USB2" pad="A5"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="USB2" pad="A8"/>
</signal>
<signal name="N$11">
<contactref element="USB2" pad="B8"/>
</signal>
<signal name="PA5">
<contactref element="U$8" pad="24"/>
<contactref element="H1" pad="2"/>
</signal>
<signal name="PA4">
<contactref element="U$8" pad="23"/>
<contactref element="H1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="USB1" pad="B8"/>
</signal>
<signal name="N$13">
<contactref element="USB1" pad="A5"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$16">
<contactref element="USB1" pad="A8"/>
</signal>
<signal name="N$1">
<contactref element="U$8" pad="21"/>
<contactref element="U$9" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="U$8" pad="20"/>
<contactref element="C9" pad="2"/>
</signal>
<signal name="CC2">
<contactref element="USB2" pad="B5"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="USB1" pad="B5"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="R8">
<contactref element="R8" pad="2"/>
<contactref element="PWD" pad="A"/>
</signal>
<signal name="R7">
<contactref element="R7" pad="2"/>
<contactref element="LED" pad="A"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
