diff --git a/midi2cv/hardware_design/pure_midi.brd b/midi2cv/hardware_design/pure_midi.brd
index 3b10464..d51e7e6 100644
--- a/midi2cv/hardware_design/pure_midi.brd
+++ b/midi2cv/hardware_design/pure_midi.brd
@@ -4109,7 +4109,7 @@ Please make sure your boards conform to these design rules.
 </pass>
 </autorouter>
 <elements>
-<element name="R7" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="4k7" x="32.766" y="58.928" smashed="yes" rot="MR90">
+<element name="R7" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="10k" x="32.766" y="58.928" smashed="yes" rot="MR90">
 <attribute name="NAME" x="33.02" y="54.991" size="1.27" layer="26" rot="MR90"/>
 <attribute name="POPULARITY" value="70" x="32.766" y="58.928" size="1.778" layer="28" rot="MR90" display="off"/>
 <attribute name="SPICEPREFIX" value="R" x="32.766" y="58.928" size="1.778" layer="28" rot="MR90" display="off"/>
@@ -4207,13 +4207,13 @@ Please make sure your boards conform to these design rules.
 <attribute name="POPULARITY" value="2" x="7.366" y="31.384" size="1.778" layer="27" rot="R270" display="off"/>
 <attribute name="VALUE" x="3.1058" y="39.4736" size="1.27" layer="27" rot="R270"/>
 </element>
-<element name="R22" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="33R" x="3.81" y="29.21" smashed="yes" rot="MR0">
+<element name="R22" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="22R" x="3.81" y="29.21" smashed="yes" rot="MR0">
 <attribute name="NAME" x="4.445" y="30.48" size="1.27" layer="26" rot="MR0"/>
 <attribute name="POPULARITY" value="70" x="3.81" y="29.21" size="1.778" layer="28" rot="MR0" display="off"/>
 <attribute name="SPICEPREFIX" value="R" x="3.81" y="29.21" size="1.778" layer="28" rot="MR0" display="off"/>
 <attribute name="VALUE" x="4.445" y="26.67" size="1.27" layer="28" rot="MR0"/>
 </element>
-<element name="R21" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="33R" x="3.81" y="33.02" smashed="yes" rot="MR0">
+<element name="R21" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="22R" x="3.81" y="33.02" smashed="yes" rot="MR0">
 <attribute name="NAME" x="4.445" y="34.29" size="1.27" layer="26" rot="MR0"/>
 <attribute name="POPULARITY" value="70" x="3.81" y="33.02" size="1.778" layer="28" rot="MR0" display="off"/>
 <attribute name="SPICEPREFIX" value="R" x="3.81" y="33.02" size="1.778" layer="28" rot="MR0" display="off"/>
@@ -4411,7 +4411,7 @@ Please make sure your boards conform to these design rules.
 <attribute name="SPICEPREFIX" value="C" x="26.416" y="40.132" size="1.778" layer="28" rot="MR0" display="off"/>
 <attribute name="VALUE" x="27.051" y="38.227" size="1.27" layer="28" rot="MR0"/>
 </element>
-<element name="R6" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="4k7" x="32.512" y="41.656" smashed="yes" rot="MR270">
+<element name="R6" library="rcl" library_urn="urn:adsk.eagle:library:334" package="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="10k" x="32.512" y="41.656" smashed="yes" rot="MR270">
 <attribute name="NAME" x="32.893" y="39.751" size="1.27" layer="26" rot="MR270"/>
 <attribute name="POPULARITY" value="70" x="32.512" y="41.656" size="1.778" layer="28" rot="MR270" display="off"/>
 <attribute name="SPICEPREFIX" value="R" x="32.512" y="41.656" size="1.778" layer="28" rot="MR270" display="off"/>
@@ -4839,9 +4839,6 @@ Please make sure your boards conform to these design rules.
 <contactref element="C12" pad="2"/>
 <contactref element="C13" pad="1"/>
 <contactref element="C28" pad="2"/>
-<wire x1="65.532" y1="96.7105" x2="65.532" y2="96.688" width="0.254" layer="16"/>
-<wire x1="69.723" y1="92.456" x2="69.748" y2="92.5055" width="0.254" layer="16"/>
-<wire x1="69.85" y1="92.583" x2="69.748" y2="92.5055" width="0.254" layer="16"/>
 <contactref element="IC8" pad="4"/>
 <contactref element="IC9" pad="4"/>
 <contactref element="C29" pad="2"/>
@@ -5021,10 +5018,6 @@ Please make sure your boards conform to these design rules.
 <wire x1="65.24625" y1="96.9645" x2="60.96" y2="96.9645" width="0.3048" layer="16"/>
 <wire x1="65.43675" y1="96.774" x2="65.24625" y2="96.9645" width="0.3048" layer="16"/>
 <wire x1="60.96" y1="96.9645" x2="60.935" y2="97.042" width="0.3048" layer="16"/>
-<wire x1="65.43675" y1="96.774" x2="65.532" y2="96.688" width="0.3048" layer="16"/>
-<wire x1="65.62725" y1="96.67875" x2="69.723" y2="92.583" width="0.3048" layer="16"/>
-<wire x1="69.723" y1="92.583" x2="69.748" y2="92.5055" width="0.3048" layer="16"/>
-<wire x1="65.62725" y1="96.67875" x2="65.532" y2="96.688" width="0.3048" layer="16"/>
 <wire x1="67.818" y1="90.58275" x2="67.818" y2="86.39175" width="0.3048" layer="16"/>
 <wire x1="69.62775" y1="92.3925" x2="67.818" y2="90.58275" width="0.3048" layer="16"/>
 <wire x1="67.818" y1="86.39175" x2="67.732" y2="86.36" width="0.3048" layer="16"/>
@@ -5041,7 +5034,6 @@ Please make sure your boards conform to these design rules.
 <wire x1="72.009" y1="90.01125" x2="69.723" y2="92.29725" width="0.3048" layer="16"/>
 <wire x1="74.00925" y1="90.01125" x2="72.009" y2="90.01125" width="0.3048" layer="16"/>
 <wire x1="76.29525" y1="87.72525" x2="74.00925" y2="90.01125" width="0.3048" layer="16"/>
-<wire x1="69.723" y1="92.29725" x2="69.748" y2="92.5055" width="0.3048" layer="16"/>
 <wire x1="76.29525" y1="87.72525" x2="76.368" y2="87.63" width="0.3048" layer="16"/>
 <wire x1="50.292" y1="54.483" x2="39.14775" y2="54.483" width="0.3048" layer="1"/>
 <wire x1="39.14775" y1="54.483" x2="39.116" y2="54.506" width="0.3048" layer="1"/>
@@ -5334,6 +5326,20 @@ Please make sure your boards conform to these design rules.
 <vertex x="48.768" y="91.948"/>
 <vertex x="48.768" y="101.092"/>
 </polygon>
+<via x="5.08" y="88.9" extent="1-16" drill="0.35"/>
+<via x="4.572" y="92.456" extent="1-16" drill="0.35"/>
+<via x="34.036" y="89.916" extent="1-16" drill="0.35"/>
+<via x="38.608" y="66.548" extent="1-16" drill="0.35"/>
+<via x="44.196" y="68.58" extent="1-16" drill="0.35"/>
+<via x="44.196" y="53.34" extent="1-16" drill="0.35"/>
+<via x="15.24" y="65.024" extent="1-16" drill="0.35"/>
+<via x="16.764" y="68.58" extent="1-16" drill="0.35"/>
+<via x="20.32" y="59.944" extent="1-16" drill="0.35"/>
+<via x="7.62" y="65.532" extent="1-16" drill="0.35"/>
+<via x="10.668" y="68.072" extent="1-16" drill="0.35"/>
+<via x="21.844" y="48.768" extent="1-16" drill="0.35"/>
+<via x="20.574" y="46.7995" extent="1-16" drill="0.35"/>
+<wire x1="4.572" y1="92.456" x2="5.08" y2="88.9" width="0" layer="19" extent="1-1"/>
 </signal>
 <signal name="-12V" class="1">
 <contactref element="C19" pad="-"/>
@@ -5411,8 +5417,6 @@ Please make sure your boards conform to these design rules.
 <contactref element="IC3" pad="4"/>
 <contactref element="IC4" pad="8"/>
 <contactref element="C26" pad="1"/>
-<wire x1="65.532" y1="92.8895" x2="65.532" y2="92.288" width="0.3556" layer="16"/>
-<wire x1="60.978" y1="92.442" x2="60.935" y2="92.442" width="0.3556" layer="16"/>
 <contactref element="IC8" pad="2"/>
 <contactref element="IC9" pad="2"/>
 <contactref element="C30" pad="1"/>
diff --git a/midi2cv/hardware_design/pure_midi.sch b/midi2cv/hardware_design/pure_midi.sch
index a0cc93d..d3a49b5 100644
--- a/midi2cv/hardware_design/pure_midi.sch
+++ b/midi2cv/hardware_design/pure_midi.sch
@@ -28083,7 +28083,7 @@ NS Package M08A</description>
 <parts>
 <part name="GND23" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="P+3" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="+12V" device=""/>
-<part name="R7" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="4k7"/>
+<part name="R7" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="10k"/>
 <part name="X3" library="thonkiconn" deviceset="WQP-PJ301M-12_JACK" device=""/>
 <part name="X4" library="thonkiconn" deviceset="WQP-PJ301M-12_JACK" device=""/>
 <part name="X5" library="thonkiconn" deviceset="WQP-PJ301M-12_JACK" device=""/>
@@ -28118,8 +28118,8 @@ NS Package M08A</description>
 <part name="U4" library="SparkFun-IC-Comms" library_urn="urn:adsk.eagle:library:521" deviceset="MAX3421E" device="SMD" package3d_urn="urn:adsk.eagle:package:38722/1" value="MAX3421"/>
 <part name="X23" library="con-kycon" library_urn="urn:adsk.eagle:library:157" deviceset="KUSBVX" device="" package3d_urn="urn:adsk.eagle:package:7682/1"/>
 <part name="GND48" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
-<part name="R22" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="33R"/>
-<part name="R21" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="33R"/>
+<part name="R22" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="22R"/>
+<part name="R21" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="22R"/>
 <part name="GND49" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="GND52" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="C20" library="GMSN" deviceset="CAPACITOR_POL-US" device="153CLV-0505" value="22u"/>
@@ -28188,7 +28188,7 @@ NS Package M08A</description>
 <part name="GND25" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="P-1" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="-12V" device=""/>
 <part name="P+1" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="+12V" device=""/>
-<part name="R6" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="4k7"/>
+<part name="R6" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/3" value="10k"/>
 <part name="GND16" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="GND15" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="C12" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="C-EU" device="C0603" package3d_urn="urn:adsk.eagle:package:23616/2" value="100n"/>