diff --git a/__used_asset__/frontend_sch.png b/__used_asset__/frontend_sch.png
index 13d7612..004e754 100644
Binary files a/__used_asset__/frontend_sch.png and b/__used_asset__/frontend_sch.png differ
diff --git a/schematic/rs41.lbr b/schematic/rs41.lbr
index 1a8e1c2..6e42c92 100644
--- a/schematic/rs41.lbr
+++ b/schematic/rs41.lbr
@@ -6,7 +6,7 @@
 <setting alwaysvectorfont="no"/>
 <setting verticaltext="up"/>
 </settings>
-<grid distance="0.1" unitdist="inch" unit="inch" style="lines" multiple="1" display="no" altdistance="0.01" altunitdist="inch" altunit="inch"/>
+<grid distance="50" unitdist="mil" unit="mil" style="lines" multiple="1" display="yes" altdistance="5" altunitdist="mil" altunit="mil"/>
 <layers>
 <layer number="1" name="Top" color="4" fill="1" visible="yes" active="yes"/>
 <layer number="2" name="Route2" color="1" fill="3" visible="no" active="yes"/>
@@ -1197,20 +1197,6 @@ GND</text>
 <text x="-10.16" y="-20.32" size="1.778" layer="96">&gt;Value</text>
 <pin name="VAUX" x="15.24" y="5.08" length="middle" rot="R180"/>
 </symbol>
-<symbol name="XOR">
-<pin name="VCC" x="15.24" y="0" length="middle" rot="R180"/>
-<pin name="IN3" x="15.24" y="5.08" length="middle" rot="R180"/>
-<pin name="OUT" x="15.24" y="-5.08" length="middle" rot="R180"/>
-<pin name="IN1" x="-15.24" y="5.08" length="middle"/>
-<pin name="GND" x="-15.24" y="0" length="middle"/>
-<pin name="IN2" x="-15.24" y="-5.08" length="middle"/>
-<wire x1="-10.16" y1="7.62" x2="10.16" y2="7.62" width="0.254" layer="94"/>
-<wire x1="10.16" y1="7.62" x2="10.16" y2="-7.62" width="0.254" layer="94"/>
-<wire x1="10.16" y1="-7.62" x2="-10.16" y2="-7.62" width="0.254" layer="94"/>
-<wire x1="-10.16" y1="-7.62" x2="-10.16" y2="7.62" width="0.254" layer="94"/>
-<text x="-10.16" y="-10.16" size="1.778" layer="95">&gt;Name</text>
-<text x="-10.16" y="-12.7" size="1.778" layer="95">&gt;Value</text>
-</symbol>
 <symbol name="CURRENT_SENSE">
 <pin name="SENSE2" x="15.24" y="0" length="middle" rot="R180"/>
 <pin name="SENSE3" x="15.24" y="5.08" length="middle" rot="R180"/>
@@ -1558,6 +1544,23 @@ GND</text>
 <pin name="1" x="5.08" y="0" visible="off" length="short" direction="pas" swaplevel="1" rot="R180"/>
 <pin name="2" x="-5.08" y="0" visible="off" length="short" direction="pas" swaplevel="1"/>
 </symbol>
+<symbol name="3NOR">
+<description>3 input logic NOR gate</description>
+<wire x1="-1.27" y1="5.08" x2="-7.62" y2="5.08" width="0.4064" layer="94"/>
+<wire x1="-1.27" y1="-5.08" x2="-7.62" y2="-5.08" width="0.4064" layer="94"/>
+<wire x1="-7.62" y1="2.54" x2="-6.35" y2="2.54" width="0.1524" layer="94"/>
+<wire x1="-7.62" y1="-2.54" x2="-6.35" y2="-2.54" width="0.1524" layer="94"/>
+<wire x1="-1.2446" y1="-5.0678" x2="7.5439" y2="0.0507" width="0.4064" layer="94" curve="60.147761" cap="flat"/>
+<wire x1="-1.2446" y1="5.0678" x2="7.5442" y2="-0.0505" width="0.4064" layer="94" curve="-60.148802" cap="flat"/>
+<wire x1="-7.62" y1="5.08" x2="-7.62" y2="-5.08" width="0.4064" layer="94" curve="-77.319617"/>
+<wire x1="-7.62" y1="0" x2="-5.842" y2="0" width="0.1524" layer="94"/>
+<text x="-7.62" y="6.35" size="1.778" layer="95">&gt;NAME</text>
+<text x="-7.62" y="-7.62" size="1.778" layer="96">&gt;VALUE</text>
+<pin name="A" x="-12.7" y="2.54" visible="pad" length="middle" swaplevel="1"/>
+<pin name="B" x="-12.7" y="0" visible="pad" length="middle" swaplevel="1"/>
+<pin name="Y" x="12.7" y="0" visible="pad" length="middle" direction="out" function="dot" rot="R180"/>
+<pin name="C" x="-12.7" y="-2.54" visible="pad" length="middle" swaplevel="1"/>
+</symbol>
 </symbols>
 <devicesets>
 <deviceset name="TS3A4751" prefix="U">
@@ -1737,29 +1740,6 @@ GND</text>
 </device>
 </devices>
 </deviceset>
-<deviceset name="Z27F" prefix="U">
-<gates>
-<gate name="G$1" symbol="XOR" x="0" y="0"/>
-</gates>
-<devices>
-<device name="" package="SOT23-6">
-<connects>
-<connect gate="G$1" pin="GND" pad="2"/>
-<connect gate="G$1" pin="IN1" pad="1"/>
-<connect gate="G$1" pin="IN2" pad="3"/>
-<connect gate="G$1" pin="IN3" pad="6"/>
-<connect gate="G$1" pin="OUT" pad="4"/>
-<connect gate="G$1" pin="VCC" pad="5"/>
-</connects>
-<package3dinstances>
-<package3dinstance package3d_urn="urn:adsk.eagle:package:6240745/1"/>
-</package3dinstances>
-<technologies>
-<technology name=""/>
-</technologies>
-</device>
-</devices>
-</deviceset>
 <deviceset name="305G" prefix="U">
 <gates>
 <gate name="G$1" symbol="CURRENT_SENSE" x="0" y="0"/>
@@ -2265,6 +2245,32 @@ GND</text>
 </device>
 </devices>
 </deviceset>
+<deviceset name="NC7SZ27">
+<gates>
+<gate name="G$1" symbol="3NOR" x="0" y="0"/>
+<gate name="PSU" symbol="PSU" x="33.02" y="2.54" addlevel="request"/>
+</gates>
+<devices>
+<device name="" package="SOT23-6">
+<connects>
+<connect gate="G$1" pin="A" pad="1"/>
+<connect gate="G$1" pin="B" pad="3"/>
+<connect gate="G$1" pin="C" pad="6"/>
+<connect gate="G$1" pin="Y" pad="4"/>
+<connect gate="PSU" pin="GND" pad="2"/>
+<connect gate="PSU" pin="VCC" pad="5"/>
+</connects>
+<package3dinstances>
+<package3dinstance package3d_urn="urn:adsk.eagle:package:6240745/1"/>
+</package3dinstances>
+<technologies>
+<technology name="">
+<attribute name="DATASHEET" value="https://www.onsemi.com/pdf/datasheet/nc7sz27-d.pdf"/>
+</technology>
+</technologies>
+</device>
+</devices>
+</deviceset>
 </devicesets>
 </library>
 </drawing>
diff --git a/schematic/rs41.sch b/schematic/rs41.sch
index b49dbdc..7791c5c 100644
--- a/schematic/rs41.sch
+++ b/schematic/rs41.sch
@@ -8,34 +8,34 @@
 </settings>
 <grid distance="0.1" unitdist="inch" unit="inch" style="lines" multiple="1" display="no" altdistance="0.01" altunitdist="inch" altunit="inch"/>
 <layers>
-<layer number="1" name="Top" color="4" fill="1" visible="yes" active="no"/>
-<layer number="2" name="Route2" color="1" fill="3" visible="yes" active="no"/>
-<layer number="3" name="Route3" color="4" fill="3" visible="yes" active="no"/>
-<layer number="4" name="Route4" color="1" fill="4" visible="yes" active="no"/>
-<layer number="5" name="Route5" color="4" fill="4" visible="yes" active="no"/>
-<layer number="6" name="Route6" color="1" fill="8" visible="yes" active="no"/>
-<layer number="7" name="Route7" color="4" fill="8" visible="yes" active="no"/>
-<layer number="8" name="Route8" color="1" fill="2" visible="yes" active="no"/>
-<layer number="9" name="Route9" color="4" fill="2" visible="yes" active="no"/>
-<layer number="10" name="Route10" color="1" fill="7" visible="yes" active="no"/>
-<layer number="11" name="Route11" color="4" fill="7" visible="yes" active="no"/>
-<layer number="12" name="Route12" color="1" fill="5" visible="yes" active="no"/>
-<layer number="13" name="Route13" color="4" fill="5" visible="yes" active="no"/>
-<layer number="14" name="Route14" color="1" fill="6" visible="yes" active="no"/>
-<layer number="15" name="Route15" color="4" fill="6" visible="yes" active="no"/>
-<layer number="16" name="Bottom" color="1" fill="1" visible="yes" active="no"/>
-<layer number="17" name="Pads" color="2" fill="1" visible="yes" active="no"/>
-<layer number="18" name="Vias" color="2" fill="1" visible="yes" active="no"/>
-<layer number="19" name="Unrouted" color="6" fill="1" visible="yes" active="no"/>
-<layer number="20" name="Dimension" color="24" fill="1" visible="yes" active="no"/>
-<layer number="21" name="tPlace" color="7" fill="1" visible="yes" active="no"/>
-<layer number="22" name="bPlace" color="7" fill="1" visible="yes" active="no"/>
-<layer number="23" name="tOrigins" color="15" fill="1" visible="yes" active="no"/>
-<layer number="24" name="bOrigins" color="15" fill="1" visible="yes" active="no"/>
-<layer number="25" name="tNames" color="7" fill="1" visible="yes" active="no"/>
-<layer number="26" name="bNames" color="7" fill="1" visible="yes" active="no"/>
-<layer number="27" name="tValues" color="7" fill="1" visible="yes" active="no"/>
-<layer number="28" name="bValues" color="7" fill="1" visible="yes" active="no"/>
+<layer number="1" name="Top" color="4" fill="1" visible="no" active="no"/>
+<layer number="2" name="Route2" color="1" fill="3" visible="no" active="no"/>
+<layer number="3" name="Route3" color="4" fill="3" visible="no" active="no"/>
+<layer number="4" name="Route4" color="1" fill="4" visible="no" active="no"/>
+<layer number="5" name="Route5" color="4" fill="4" visible="no" active="no"/>
+<layer number="6" name="Route6" color="1" fill="8" visible="no" active="no"/>
+<layer number="7" name="Route7" color="4" fill="8" visible="no" active="no"/>
+<layer number="8" name="Route8" color="1" fill="2" visible="no" active="no"/>
+<layer number="9" name="Route9" color="4" fill="2" visible="no" active="no"/>
+<layer number="10" name="Route10" color="1" fill="7" visible="no" active="no"/>
+<layer number="11" name="Route11" color="4" fill="7" visible="no" active="no"/>
+<layer number="12" name="Route12" color="1" fill="5" visible="no" active="no"/>
+<layer number="13" name="Route13" color="4" fill="5" visible="no" active="no"/>
+<layer number="14" name="Route14" color="1" fill="6" visible="no" active="no"/>
+<layer number="15" name="Route15" color="4" fill="6" visible="no" active="no"/>
+<layer number="16" name="Bottom" color="1" fill="1" visible="no" active="no"/>
+<layer number="17" name="Pads" color="2" fill="1" visible="no" active="no"/>
+<layer number="18" name="Vias" color="2" fill="1" visible="no" active="no"/>
+<layer number="19" name="Unrouted" color="6" fill="1" visible="no" active="no"/>
+<layer number="20" name="Dimension" color="24" fill="1" visible="no" active="no"/>
+<layer number="21" name="tPlace" color="7" fill="1" visible="no" active="no"/>
+<layer number="22" name="bPlace" color="7" fill="1" visible="no" active="no"/>
+<layer number="23" name="tOrigins" color="15" fill="1" visible="no" active="no"/>
+<layer number="24" name="bOrigins" color="15" fill="1" visible="no" active="no"/>
+<layer number="25" name="tNames" color="7" fill="1" visible="no" active="no"/>
+<layer number="26" name="bNames" color="7" fill="1" visible="no" active="no"/>
+<layer number="27" name="tValues" color="7" fill="1" visible="no" active="no"/>
+<layer number="28" name="bValues" color="7" fill="1" visible="no" active="no"/>
 <layer number="29" name="tStop" color="7" fill="3" visible="no" active="no"/>
 <layer number="30" name="bStop" color="7" fill="6" visible="no" active="no"/>
 <layer number="31" name="tCream" color="7" fill="4" visible="no" active="no"/>
@@ -44,8 +44,8 @@
 <layer number="34" name="bFinish" color="6" fill="6" visible="no" active="no"/>
 <layer number="35" name="tGlue" color="7" fill="4" visible="no" active="no"/>
 <layer number="36" name="bGlue" color="7" fill="5" visible="no" active="no"/>
-<layer number="37" name="tTest" color="7" fill="1" visible="yes" active="no"/>
-<layer number="38" name="bTest" color="7" fill="1" visible="yes" active="no"/>
+<layer number="37" name="tTest" color="7" fill="1" visible="no" active="no"/>
+<layer number="38" name="bTest" color="7" fill="1" visible="no" active="no"/>
 <layer number="39" name="tKeepout" color="4" fill="11" visible="no" active="no"/>
 <layer number="40" name="bKeepout" color="1" fill="11" visible="no" active="no"/>
 <layer number="41" name="tRestrict" color="4" fill="10" visible="no" active="no"/>
@@ -53,15 +53,15 @@
 <layer number="43" name="vRestrict" color="2" fill="10" visible="no" active="no"/>
 <layer number="44" name="Drills" color="7" fill="1" visible="no" active="no"/>
 <layer number="45" name="Holes" color="7" fill="1" visible="no" active="no"/>
-<layer number="46" name="Milling" color="3" fill="1" visible="yes" active="no"/>
-<layer number="47" name="Measures" color="7" fill="1" visible="yes" active="no"/>
-<layer number="48" name="Document" color="7" fill="1" visible="yes" active="no"/>
-<layer number="49" name="Reference" color="7" fill="1" visible="yes" active="no"/>
-<layer number="50" name="dxf" color="7" fill="1" visible="yes" active="no"/>
-<layer number="51" name="tDocu" color="7" fill="1" visible="yes" active="no"/>
-<layer number="52" name="bDocu" color="7" fill="1" visible="yes" active="no"/>
-<layer number="53" name="tPadExt" color="7" fill="1" visible="yes" active="no"/>
-<layer number="54" name="bPadExt" color="1" fill="1" visible="yes" active="no"/>
+<layer number="46" name="Milling" color="3" fill="1" visible="no" active="no"/>
+<layer number="47" name="Measures" color="7" fill="1" visible="no" active="no"/>
+<layer number="48" name="Document" color="7" fill="1" visible="no" active="no"/>
+<layer number="49" name="Reference" color="7" fill="1" visible="no" active="no"/>
+<layer number="50" name="dxf" color="7" fill="1" visible="no" active="no"/>
+<layer number="51" name="tDocu" color="7" fill="1" visible="no" active="no"/>
+<layer number="52" name="bDocu" color="7" fill="1" visible="no" active="no"/>
+<layer number="53" name="tPadExt" color="7" fill="1" visible="no" active="no"/>
+<layer number="54" name="bPadExt" color="1" fill="1" visible="no" active="no"/>
 <layer number="88" name="SimResults" color="9" fill="1" visible="yes" active="yes"/>
 <layer number="89" name="SimProbes" color="9" fill="1" visible="yes" active="yes"/>
 <layer number="90" name="Modules" color="5" fill="1" visible="yes" active="yes"/>
@@ -1330,20 +1330,6 @@ GND</text>
 <text x="-10.16" y="-10.16" size="1.778" layer="95">&gt;Name</text>
 <text x="-10.16" y="-12.7" size="1.778" layer="95">&gt;Value</text>
 </symbol>
-<symbol name="XOR">
-<pin name="VCC" x="15.24" y="0" length="middle" rot="R180"/>
-<pin name="IN3" x="15.24" y="5.08" length="middle" rot="R180"/>
-<pin name="OUT" x="15.24" y="-5.08" length="middle" rot="R180"/>
-<pin name="IN1" x="-15.24" y="5.08" length="middle"/>
-<pin name="GND" x="-15.24" y="0" length="middle"/>
-<pin name="IN2" x="-15.24" y="-5.08" length="middle"/>
-<wire x1="-10.16" y1="7.62" x2="10.16" y2="7.62" width="0.254" layer="94"/>
-<wire x1="10.16" y1="7.62" x2="10.16" y2="-7.62" width="0.254" layer="94"/>
-<wire x1="10.16" y1="-7.62" x2="-10.16" y2="-7.62" width="0.254" layer="94"/>
-<wire x1="-10.16" y1="-7.62" x2="-10.16" y2="7.62" width="0.254" layer="94"/>
-<text x="-10.16" y="-10.16" size="1.778" layer="95">&gt;Name</text>
-<text x="-10.16" y="-12.7" size="1.778" layer="95">&gt;Value</text>
-</symbol>
 <symbol name="TEMP">
 <wire x1="-2.54" y1="-0.889" x2="2.54" y2="-0.889" width="0.254" layer="94"/>
 <wire x1="2.54" y1="0.889" x2="-2.54" y2="0.889" width="0.254" layer="94"/>
@@ -1577,6 +1563,23 @@ GND</text>
 <pin name="1" x="5.08" y="0" visible="off" length="short" direction="pas" swaplevel="1" rot="R180"/>
 <pin name="2" x="-5.08" y="0" visible="off" length="short" direction="pas" swaplevel="1"/>
 </symbol>
+<symbol name="3NOR">
+<description>3 input logic NOR gate</description>
+<wire x1="-1.27" y1="5.08" x2="-7.62" y2="5.08" width="0.4064" layer="94"/>
+<wire x1="-1.27" y1="-5.08" x2="-7.62" y2="-5.08" width="0.4064" layer="94"/>
+<wire x1="-7.62" y1="2.54" x2="-6.35" y2="2.54" width="0.1524" layer="94"/>
+<wire x1="-7.62" y1="-2.54" x2="-6.35" y2="-2.54" width="0.1524" layer="94"/>
+<wire x1="-1.2446" y1="-5.0678" x2="7.5439" y2="0.0507" width="0.4064" layer="94" curve="60.147761" cap="flat"/>
+<wire x1="-1.2446" y1="5.0678" x2="7.5442" y2="-0.0505" width="0.4064" layer="94" curve="-60.148802" cap="flat"/>
+<wire x1="-7.62" y1="5.08" x2="-7.62" y2="-5.08" width="0.4064" layer="94" curve="-77.319617"/>
+<wire x1="-7.62" y1="0" x2="-5.842" y2="0" width="0.1524" layer="94"/>
+<text x="-7.62" y="6.35" size="1.778" layer="95">&gt;NAME</text>
+<text x="-7.62" y="-7.62" size="1.778" layer="96">&gt;VALUE</text>
+<pin name="A" x="-12.7" y="2.54" visible="pad" length="middle" swaplevel="1"/>
+<pin name="B" x="-12.7" y="0" visible="pad" length="middle" swaplevel="1"/>
+<pin name="Y" x="12.7" y="0" visible="pad" length="middle" direction="out" function="dot" rot="R180"/>
+<pin name="C" x="-12.7" y="-2.54" visible="pad" length="middle" swaplevel="1"/>
+</symbol>
 </symbols>
 <devicesets>
 <deviceset name="STM32F100C8" prefix="U">
@@ -1954,29 +1957,6 @@ GND</text>
 </device>
 </devices>
 </deviceset>
-<deviceset name="Z27F" prefix="U">
-<gates>
-<gate name="G$1" symbol="XOR" x="0" y="0"/>
-</gates>
-<devices>
-<device name="" package="SOT23-6">
-<connects>
-<connect gate="G$1" pin="GND" pad="2"/>
-<connect gate="G$1" pin="IN1" pad="1"/>
-<connect gate="G$1" pin="IN2" pad="3"/>
-<connect gate="G$1" pin="IN3" pad="6"/>
-<connect gate="G$1" pin="OUT" pad="4"/>
-<connect gate="G$1" pin="VCC" pad="5"/>
-</connects>
-<package3dinstances>
-<package3dinstance package3d_urn="urn:adsk.eagle:package:6240745/1"/>
-</package3dinstances>
-<technologies>
-<technology name=""/>
-</technologies>
-</device>
-</devices>
-</deviceset>
 <deviceset name="SENSORBOOM" prefix="J">
 <gates>
 <gate name="TMP" symbol="TEMP" x="-50.8" y="10.16"/>
@@ -2284,6 +2264,32 @@ GND</text>
 </device>
 </devices>
 </deviceset>
+<deviceset name="NC7SZ27">
+<gates>
+<gate name="G$1" symbol="3NOR" x="0" y="0"/>
+<gate name="PSU" symbol="PSU" x="33.02" y="2.54" addlevel="request"/>
+</gates>
+<devices>
+<device name="" package="SOT23-6">
+<connects>
+<connect gate="G$1" pin="A" pad="1"/>
+<connect gate="G$1" pin="B" pad="3"/>
+<connect gate="G$1" pin="C" pad="6"/>
+<connect gate="G$1" pin="Y" pad="4"/>
+<connect gate="PSU" pin="GND" pad="2"/>
+<connect gate="PSU" pin="VCC" pad="5"/>
+</connects>
+<package3dinstances>
+<package3dinstance package3d_urn="urn:adsk.eagle:package:6240745/1"/>
+</package3dinstances>
+<technologies>
+<technology name="">
+<attribute name="DATASHEET" value="https://www.onsemi.com/pdf/datasheet/nc7sz27-d.pdf"/>
+</technology>
+</technologies>
+</device>
+</devices>
+</deviceset>
 </devicesets>
 </library>
 <library name="transistor-fet" urn="urn:adsk.eagle:library:396">
@@ -14035,7 +14041,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <part name="U203" library="rs41" deviceset="TS5A9411" device="" package3d_urn="urn:adsk.eagle:package:6240745/1"/>
 <part name="U204" library="rs41" deviceset="TS5A9411" device="" package3d_urn="urn:adsk.eagle:package:6240745/1"/>
 <part name="U206" library="rs41" deviceset="305G" device="" package3d_urn="urn:adsk.eagle:package:6240745/1"/>
-<part name="U208" library="rs41" deviceset="Z27F" device="" package3d_urn="urn:adsk.eagle:package:6240745/1"/>
 <part name="J201" library="rs41" deviceset="SENSORBOOM" device=""/>
 <part name="Q201" library="transistor-fet" library_urn="urn:adsk.eagle:library:396" deviceset="BSS92" device="" package3d_urn="urn:adsk.eagle:package:28523/2" value=""/>
 <part name="Q202" library="transistor-fet" library_urn="urn:adsk.eagle:library:396" deviceset="BSS92" device="" package3d_urn="urn:adsk.eagle:package:28523/2" value=""/>
@@ -14071,7 +14076,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <part name="GND220" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="R204" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/2" value="150R"/>
 <part name="R203" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/2" value="100R"/>
-<part name="GND224" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="GND215" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="GND216" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 <part name="C210" library="rcl" library_urn="urn:adsk.eagle:library:334" deviceset="C-EU" device="C0402" package3d_urn="urn:adsk.eagle:package:23626/1" value="27p"/>
@@ -14461,6 +14465,10 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <part name="L410" library="rs41" deviceset="L" device="0402" value="2.7u"/>
 <part name="P+4" library="rs41" deviceset="+3V_GPS" device=""/>
 <part name="P+5" library="rs41" deviceset="+3V_GPS" device=""/>
+<part name="U208" library="rs41" deviceset="NC7SZ27" device="" package3d_urn="urn:adsk.eagle:package:6240745/1"/>
+<part name="GND15" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
+<part name="P+6" library="rs41" deviceset="+3V_ANA" device=""/>
+<part name="GND16" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="GND" device=""/>
 </parts>
 <sheets>
 <sheet>
@@ -15515,7 +15523,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <sheet>
 <description>Frontend</description>
 <plain>
-<text x="119.38" y="-10.16" size="1.778" layer="97">NOR Gate</text>
 <wire x1="-48.26" y1="-15.24" x2="33.02" y2="-15.24" width="0.508" layer="98"/>
 <wire x1="33.02" y1="-15.24" x2="254" y2="-15.24" width="0.508" layer="98"/>
 <wire x1="254" y1="-15.24" x2="254" y2="119.38" width="0.508" layer="98"/>
@@ -15530,7 +15537,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <wire x1="96.52" y1="81.28" x2="96.52" y2="119.38" width="0.508" layer="98"/>
 <wire x1="33.02" y1="81.28" x2="-48.26" y2="81.28" width="0.508" layer="98"/>
 <wire x1="33.02" y1="43.18" x2="-48.26" y2="43.18" width="0.508" layer="98"/>
-<text x="114.3" y="15.24" size="1.778" layer="94">TODO: NC7SZ27 Symbol and Value</text>
 </plain>
 <instances>
 <instance part="U205" gate="INV1" x="248.92" y="60.96" smashed="yes" rot="R270">
@@ -15561,8 +15567,8 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <instance part="U207" gate="BUF2" x="71.12" y="7.62" smashed="yes">
 <attribute name="NAME" x="66.04" y="2.54" size="1.778" layer="95"/>
 </instance>
-<instance part="U207" gate="BUF3" x="172.72" y="7.62" smashed="yes" rot="MR0">
-<attribute name="NAME" x="177.8" y="2.54" size="1.778" layer="95" rot="MR0"/>
+<instance part="U207" gate="BUF3" x="185.42" y="7.62" smashed="yes" rot="MR0">
+<attribute name="NAME" x="190.5" y="2.54" size="1.778" layer="95" rot="MR0"/>
 </instance>
 <instance part="U207" gate="PSU" x="2.54" y="99.06" smashed="yes">
 <attribute name="NAME" x="-2.54" y="114.3" size="1.778" layer="95" rot="R180"/>
@@ -15609,10 +15615,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <attribute name="NAME" x="-17.78" y="-2.54" size="1.778" layer="95"/>
 <attribute name="VALUE" x="-17.78" y="-5.08" size="1.778" layer="95"/>
 </instance>
-<instance part="U208" gate="G$1" x="129.54" y="2.54" smashed="yes" rot="MR0">
-<attribute name="NAME" x="139.7" y="-7.62" size="1.778" layer="95" rot="MR0"/>
-<attribute name="VALUE" x="139.7" y="-10.16" size="1.778" layer="95" rot="MR0"/>
-</instance>
 <instance part="J201" gate="TMP" x="114.3" y="66.04" smashed="yes" rot="R270">
 <attribute name="NAME" x="103.0986" y="69.85" size="1.778" layer="95" rot="R270"/>
 </instance>
@@ -15672,21 +15674,21 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <attribute name="NAME" x="233.426" y="45.339" size="1.778" layer="95" rot="R180"/>
 <attribute name="VALUE" x="233.426" y="42.799" size="1.778" layer="96" rot="R180"/>
 </instance>
-<instance part="R226" gate="G$1" x="187.96" y="7.62" smashed="yes" rot="R180">
-<attribute name="NAME" x="191.77" y="6.1214" size="1.778" layer="95" rot="R180"/>
-<attribute name="VALUE" x="191.77" y="10.922" size="1.778" layer="96" rot="R180"/>
+<instance part="R226" gate="G$1" x="200.66" y="7.62" smashed="yes" rot="R180">
+<attribute name="NAME" x="204.47" y="6.1214" size="1.778" layer="95" rot="R180"/>
+<attribute name="VALUE" x="204.47" y="10.922" size="1.778" layer="96" rot="R180"/>
 </instance>
-<instance part="R220" gate="G$1" x="172.72" y="15.24" smashed="yes" rot="R180">
-<attribute name="NAME" x="176.53" y="13.7414" size="1.778" layer="95" rot="R180"/>
-<attribute name="VALUE" x="176.53" y="18.542" size="1.778" layer="96" rot="R180"/>
+<instance part="R220" gate="G$1" x="185.42" y="15.24" smashed="yes" rot="R180">
+<attribute name="NAME" x="189.23" y="13.7414" size="1.778" layer="95" rot="R180"/>
+<attribute name="VALUE" x="189.23" y="18.542" size="1.778" layer="96" rot="R180"/>
 </instance>
-<instance part="R225" gate="G$1" x="152.4" y="7.62" smashed="yes" rot="R180">
-<attribute name="NAME" x="156.21" y="6.1214" size="1.778" layer="95" rot="R180"/>
-<attribute name="VALUE" x="156.21" y="10.922" size="1.778" layer="96" rot="R180"/>
+<instance part="R225" gate="G$1" x="170.18" y="7.62" smashed="yes" rot="R180">
+<attribute name="NAME" x="173.99" y="6.1214" size="1.778" layer="95" rot="R180"/>
+<attribute name="VALUE" x="173.99" y="10.922" size="1.778" layer="96" rot="R180"/>
 </instance>
-<instance part="C219" gate="G$1" x="180.34" y="0" smashed="yes">
-<attribute name="NAME" x="181.864" y="0.381" size="1.778" layer="95"/>
-<attribute name="VALUE" x="181.864" y="-4.699" size="1.778" layer="96"/>
+<instance part="C219" gate="G$1" x="193.04" y="0" smashed="yes">
+<attribute name="NAME" x="194.564" y="0.381" size="1.778" layer="95"/>
+<attribute name="VALUE" x="194.564" y="-4.699" size="1.778" layer="96"/>
 </instance>
 <instance part="R208" gate="G$1" x="68.58" y="63.5" smashed="yes" rot="R270">
 <attribute name="NAME" x="70.0786" y="64.77" size="1.778" layer="95" rot="R270"/>
@@ -15735,8 +15737,8 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <instance part="GND223" gate="1" x="63.5" y="-10.16" smashed="yes">
 <attribute name="VALUE" x="60.96" y="-12.7" size="1.778" layer="96"/>
 </instance>
-<instance part="GND225" gate="1" x="180.34" y="-10.16" smashed="yes">
-<attribute name="VALUE" x="177.8" y="-12.7" size="1.778" layer="96"/>
+<instance part="GND225" gate="1" x="193.04" y="-10.16" smashed="yes">
+<attribute name="VALUE" x="190.5" y="-12.7" size="1.778" layer="96"/>
 </instance>
 <instance part="GND214" gate="1" x="142.24" y="53.34" smashed="yes">
 <attribute name="VALUE" x="139.7" y="50.8" size="1.778" layer="96"/>
@@ -15758,9 +15760,6 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <attribute name="NAME" x="127" y="71.12" size="1.778" layer="95"/>
 <attribute name="VALUE" x="127" y="68.58" size="1.778" layer="96"/>
 </instance>
-<instance part="GND224" gate="1" x="147.32" y="-10.16" smashed="yes">
-<attribute name="VALUE" x="144.78" y="-12.7" size="1.778" layer="96"/>
-</instance>
 <instance part="GND215" gate="1" x="170.18" y="50.8" smashed="yes">
 <attribute name="VALUE" x="167.64" y="48.26" size="1.778" layer="96"/>
 </instance>
@@ -15940,6 +15939,23 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <attribute name="NAME" x="0" y="59.69" size="1.778" layer="95"/>
 <attribute name="VALUE" x="0" y="57.15" size="1.778" layer="96"/>
 </instance>
+<instance part="U208" gate="G$1" x="142.24" y="12.7" smashed="yes" rot="R270">
+<attribute name="NAME" x="148.59" y="20.32" size="1.778" layer="95" rot="R270"/>
+<attribute name="VALUE" x="134.62" y="20.32" size="1.778" layer="96" rot="R270"/>
+</instance>
+<instance part="U208" gate="PSU" x="91.44" y="99.06" smashed="yes">
+<attribute name="NAME" x="86.36" y="114.3" size="1.778" layer="95" rot="R180"/>
+<attribute name="VALUE" x="86.36" y="111.76" size="1.778" layer="96" rot="R180"/>
+</instance>
+<instance part="GND15" gate="1" x="91.44" y="86.36" smashed="yes">
+<attribute name="VALUE" x="88.9" y="83.82" size="1.778" layer="96"/>
+</instance>
+<instance part="P+6" gate="G$1" x="91.44" y="109.22" smashed="yes">
+<attribute name="VALUE" x="88.9" y="106.68" size="1.778" layer="96" rot="R90"/>
+</instance>
+<instance part="GND16" gate="1" x="149.86" y="33.02" smashed="yes">
+<attribute name="VALUE" x="147.32" y="30.48" size="1.778" layer="96"/>
+</instance>
 </instances>
 <busses>
 </busses>
@@ -16103,30 +16119,31 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <segment>
 <pinref part="R226" gate="G$1" pin="2"/>
 <pinref part="U207" gate="BUF3" pin="A"/>
-<wire x1="182.88" y1="7.62" x2="180.34" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="195.58" y1="7.62" x2="193.04" y2="7.62" width="0.1524" layer="91"/>
 <pinref part="C219" gate="G$1" pin="1"/>
-<wire x1="180.34" y1="7.62" x2="177.8" y2="7.62" width="0.1524" layer="91"/>
-<wire x1="180.34" y1="7.62" x2="180.34" y2="2.54" width="0.1524" layer="91"/>
-<junction x="180.34" y="7.62"/>
+<wire x1="193.04" y1="7.62" x2="190.5" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="193.04" y1="7.62" x2="193.04" y2="2.54" width="0.1524" layer="91"/>
+<junction x="193.04" y="7.62"/>
 <pinref part="R220" gate="G$1" pin="1"/>
-<wire x1="180.34" y1="7.62" x2="180.34" y2="15.24" width="0.1524" layer="91"/>
-<wire x1="180.34" y1="15.24" x2="177.8" y2="15.24" width="0.1524" layer="91"/>
+<wire x1="193.04" y1="7.62" x2="193.04" y2="15.24" width="0.1524" layer="91"/>
+<wire x1="193.04" y1="15.24" x2="190.5" y2="15.24" width="0.1524" layer="91"/>
 </segment>
 </net>
 <net name="N$23" class="0">
 <segment>
 <pinref part="R220" gate="G$1" pin="2"/>
-<wire x1="167.64" y1="15.24" x2="165.1" y2="15.24" width="0.1524" layer="91"/>
-<wire x1="165.1" y1="15.24" x2="165.1" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="180.34" y1="15.24" x2="177.8" y2="15.24" width="0.1524" layer="91"/>
+<wire x1="177.8" y1="15.24" x2="177.8" y2="7.62" width="0.1524" layer="91"/>
 <pinref part="R225" gate="G$1" pin="1"/>
-<wire x1="165.1" y1="7.62" x2="160.02" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="177.8" y1="7.62" x2="175.26" y2="7.62" width="0.1524" layer="91"/>
 <pinref part="R212" gate="G$1" pin="1"/>
-<wire x1="160.02" y1="7.62" x2="157.48" y2="7.62" width="0.1524" layer="91"/>
-<wire x1="160.02" y1="38.1" x2="160.02" y2="7.62" width="0.1524" layer="91"/>
-<junction x="160.02" y="7.62"/>
+<wire x1="160.02" y1="38.1" x2="160.02" y2="25.4" width="0.1524" layer="91"/>
 <pinref part="U207" gate="BUF3" pin="Y"/>
-<wire x1="167.64" y1="7.62" x2="165.1" y2="7.62" width="0.1524" layer="91"/>
-<junction x="165.1" y="7.62"/>
+<wire x1="180.34" y1="7.62" x2="177.8" y2="7.62" width="0.1524" layer="91"/>
+<junction x="177.8" y="7.62"/>
+<wire x1="177.8" y1="15.24" x2="177.8" y2="25.4" width="0.1524" layer="91"/>
+<wire x1="177.8" y1="25.4" x2="160.02" y2="25.4" width="0.1524" layer="91"/>
+<junction x="177.8" y="15.24"/>
 </segment>
 </net>
 <net name="SPST1" class="0">
@@ -16255,17 +16272,7 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <segment>
 <pinref part="GND225" gate="1" pin="GND"/>
 <pinref part="C219" gate="G$1" pin="2"/>
-<wire x1="180.34" y1="-7.62" x2="180.34" y2="-5.08" width="0.1524" layer="91"/>
-</segment>
-<segment>
-<pinref part="U208" gate="G$1" pin="GND"/>
-<wire x1="144.78" y1="2.54" x2="147.32" y2="2.54" width="0.1524" layer="91"/>
-<wire x1="147.32" y1="2.54" x2="147.32" y2="-2.54" width="0.1524" layer="91"/>
-<pinref part="U208" gate="G$1" pin="IN2"/>
-<wire x1="147.32" y1="-2.54" x2="144.78" y2="-2.54" width="0.1524" layer="91"/>
-<junction x="147.32" y="-2.54"/>
-<pinref part="GND224" gate="1" pin="GND"/>
-<wire x1="147.32" y1="-7.62" x2="147.32" y2="-2.54" width="0.1524" layer="91"/>
+<wire x1="193.04" y1="-7.62" x2="193.04" y2="-5.08" width="0.1524" layer="91"/>
 </segment>
 <segment>
 <pinref part="GND223" gate="1" pin="GND"/>
@@ -16373,6 +16380,13 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <pinref part="GND1" gate="1" pin="GND"/>
 <wire x1="76.2" y1="63.5" x2="76.2" y2="60.96" width="0.1524" layer="91"/>
 </segment>
+<segment>
+<pinref part="U208" gate="G$1" pin="B"/>
+<wire x1="142.24" y1="25.4" x2="142.24" y2="38.1" width="0.1524" layer="91"/>
+<wire x1="142.24" y1="38.1" x2="149.86" y2="38.1" width="0.1524" layer="91"/>
+<pinref part="GND16" gate="1" pin="GND"/>
+<wire x1="149.86" y1="38.1" x2="149.86" y2="35.56" width="0.1524" layer="91"/>
+</segment>
 </net>
 <net name="N$2" class="0">
 <segment>
@@ -16386,20 +16400,14 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 </net>
 <net name="MEAS_OUT" class="0">
 <segment>
-<pinref part="U208" gate="G$1" pin="OUT"/>
-<wire x1="111.76" y1="-5.08" x2="114.3" y2="-5.08" width="0.1524" layer="91"/>
-<wire x1="114.3" y1="-5.08" x2="114.3" y2="-2.54" width="0.1524" layer="91"/>
-<label x="111.76" y="-5.08" size="1.27" layer="95" rot="MR0" xref="yes"/>
+<label x="134.62" y="-5.08" size="1.27" layer="95" rot="MR0" xref="yes"/>
+<pinref part="U208" gate="G$1" pin="Y"/>
+<wire x1="142.24" y1="0" x2="142.24" y2="-5.08" width="0.1524" layer="91"/>
+<wire x1="142.24" y1="-5.08" x2="134.62" y2="-5.08" width="0.1524" layer="91"/>
 </segment>
 </net>
 <net name="+3V_ANA" class="0">
 <segment>
-<pinref part="U208" gate="G$1" pin="VCC"/>
-<wire x1="111.76" y1="0" x2="114.3" y2="0" width="0.1524" layer="91"/>
-<wire x1="114.3" y1="0" x2="114.3" y2="2.54" width="0.1524" layer="91"/>
-<label x="111.76" y="0" size="1.27" layer="95" rot="MR0" xref="yes"/>
-</segment>
-<segment>
 <pinref part="Q201" gate="G$1" pin="D"/>
 <pinref part="Q202" gate="G$1" pin="D"/>
 <wire x1="139.7" y1="88.9" x2="142.24" y2="88.9" width="0.1524" layer="91"/>
@@ -16603,21 +16611,20 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <wire x1="248.92" y1="17.78" x2="248.92" y2="20.32" width="0.1524" layer="91"/>
 <pinref part="R226" gate="G$1" pin="1"/>
 <wire x1="248.92" y1="17.78" x2="248.92" y2="7.62" width="0.1524" layer="91"/>
-<wire x1="248.92" y1="7.62" x2="200.66" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="248.92" y1="7.62" x2="208.28" y2="7.62" width="0.1524" layer="91"/>
 <pinref part="U202" gate="SPDT" pin="NO"/>
-<wire x1="200.66" y1="7.62" x2="193.04" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="208.28" y1="7.62" x2="205.74" y2="7.62" width="0.1524" layer="91"/>
 <wire x1="172.72" y1="38.1" x2="172.72" y2="35.56" width="0.1524" layer="91"/>
 <wire x1="172.72" y1="35.56" x2="190.5" y2="35.56" width="0.1524" layer="91"/>
 <pinref part="U204" gate="SPDT" pin="NO"/>
-<wire x1="190.5" y1="35.56" x2="200.66" y2="35.56" width="0.1524" layer="91"/>
-<wire x1="200.66" y1="35.56" x2="208.28" y2="35.56" width="0.1524" layer="91"/>
+<wire x1="190.5" y1="35.56" x2="208.28" y2="35.56" width="0.1524" layer="91"/>
 <wire x1="208.28" y1="35.56" x2="208.28" y2="38.1" width="0.1524" layer="91"/>
 <pinref part="U203" gate="SPDT" pin="NO"/>
 <wire x1="190.5" y1="38.1" x2="190.5" y2="35.56" width="0.1524" layer="91"/>
 <junction x="190.5" y="35.56"/>
-<wire x1="200.66" y1="7.62" x2="200.66" y2="35.56" width="0.1524" layer="91"/>
-<junction x="200.66" y="7.62"/>
-<junction x="200.66" y="35.56"/>
+<wire x1="208.28" y1="7.62" x2="208.28" y2="35.56" width="0.1524" layer="91"/>
+<junction x="208.28" y="7.62"/>
+<junction x="208.28" y="35.56"/>
 <wire x1="241.3" y1="17.78" x2="248.92" y2="17.78" width="0.1524" layer="91"/>
 <junction x="241.3" y="17.78"/>
 <junction x="248.92" y="17.78"/>
@@ -16707,15 +16714,21 @@ new: Attribute TP_SIGNAL_NAME&lt;br&gt;
 <net name="N$3" class="0">
 <segment>
 <pinref part="R225" gate="G$1" pin="2"/>
-<pinref part="U208" gate="G$1" pin="IN1"/>
-<wire x1="147.32" y1="7.62" x2="144.78" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="165.1" y1="7.62" x2="157.48" y2="7.62" width="0.1524" layer="91"/>
+<pinref part="U208" gate="G$1" pin="A"/>
+<wire x1="144.78" y1="25.4" x2="144.78" y2="27.94" width="0.1524" layer="91"/>
+<wire x1="144.78" y1="27.94" x2="157.48" y2="27.94" width="0.1524" layer="91"/>
+<wire x1="157.48" y1="27.94" x2="157.48" y2="7.62" width="0.1524" layer="91"/>
 </segment>
 </net>
 <net name="N$4" class="0">
 <segment>
 <pinref part="R224" gate="G$1" pin="2"/>
-<wire x1="106.68" y1="7.62" x2="114.3" y2="7.62" width="0.1524" layer="91"/>
-<pinref part="U208" gate="G$1" pin="IN3"/>
+<wire x1="106.68" y1="7.62" x2="129.54" y2="7.62" width="0.1524" layer="91"/>
+<wire x1="129.54" y1="7.62" x2="129.54" y2="27.94" width="0.1524" layer="91"/>
+<wire x1="129.54" y1="27.94" x2="139.7" y2="27.94" width="0.1524" layer="91"/>
+<pinref part="U208" gate="G$1" pin="C"/>
+<wire x1="139.7" y1="27.94" x2="139.7" y2="25.4" width="0.1524" layer="91"/>
 </segment>
 </net>
 </nets>