diff --git a/sonde/sonde.sch b/sonde/sonde.sch
--- a/sonde/sonde.sch
+++ b/sonde/sonde.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="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="15" 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="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="15" 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="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="no" active="no"/>
-<layer number="38" name="bTest" color="7" fill="1" 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="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"/>
@@ -53,22 +53,22 @@
 <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="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="tGND_GNDA" color="5" fill="1" visible="no" active="no"/>
-<layer number="54" name="bGND_GNDA" color="5" fill="1" visible="no" active="no"/>
-<layer number="55" name="dxf2" color="14" fill="1" visible="no" active="no"/>
-<layer number="56" name="wert" color="13" fill="1" visible="no" active="no"/>
-<layer number="57" name="tCAD" color="7" fill="1" visible="no" active="no"/>
-<layer number="58" name="bRefDes" color="7" fill="1" visible="no" active="no"/>
-<layer number="59" name="tCarbon" color="11" fill="1" visible="no" active="no"/>
-<layer number="60" name="bCarbon" color="12" fill="1" visible="no" active="no"/>
-<layer number="61" name="pt_docu" color="12" 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="tGND_GNDA" color="5" fill="1" visible="yes" active="no"/>
+<layer number="54" name="bGND_GNDA" color="5" fill="1" visible="yes" active="no"/>
+<layer number="55" name="dxf2" color="14" fill="1" visible="yes" active="no"/>
+<layer number="56" name="wert" color="13" fill="1" visible="yes" active="no"/>
+<layer number="57" name="tCAD" color="7" fill="1" visible="yes" active="no"/>
+<layer number="58" name="bRefDes" color="7" fill="1" visible="yes" active="no"/>
+<layer number="59" name="tCarbon" color="11" fill="1" visible="yes" active="no"/>
+<layer number="60" name="bCarbon" color="12" fill="1" visible="yes" active="no"/>
+<layer number="61" name="pt_docu" color="12" fill="1" visible="yes" active="no"/>
 <layer number="90" name="Modules" color="5" fill="1" visible="yes" active="yes"/>
 <layer number="91" name="Nets" color="2" fill="1" visible="yes" active="yes"/>
 <layer number="92" name="Busses" color="1" fill="1" visible="yes" active="yes"/>
@@ -2747,40 +2747,6 @@ Source: http://www.osram.convergy.de/</d
 </deviceset>
 </devicesets>
 </library>
-<library name="SparkFun-Aesthetics">
-<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
-In this library you'll find non-functional items- supply symbols, logos, notations, frame blocks, etc.&lt;br&gt;&lt;br&gt;
-We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
-&lt;br&gt;&lt;br&gt;
-&lt;b&gt;Licensing:&lt;/b&gt; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
-&lt;br&gt;&lt;br&gt;
-You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
-<packages>
-</packages>
-<symbols>
-<symbol name="3.3V">
-<wire x1="0.762" y1="1.27" x2="0" y2="2.54" width="0.254" layer="94"/>
-<wire x1="0" y1="2.54" x2="-0.762" y2="1.27" width="0.254" layer="94"/>
-<text x="-1.016" y="3.556" size="1.778" layer="96">&gt;VALUE</text>
-<pin name="3.3V" x="0" y="0" visible="off" length="short" direction="sup" rot="R90"/>
-</symbol>
-</symbols>
-<devicesets>
-<deviceset name="3.3V" prefix="SUPPLY">
-<description>&lt;b&gt;SUPPLY SYMBOL&lt;/b&gt;</description>
-<gates>
-<gate name="G$1" symbol="3.3V" x="0" y="0"/>
-</gates>
-<devices>
-<device name="">
-<technologies>
-<technology name=""/>
-</technologies>
-</device>
-</devices>
-</deviceset>
-</devicesets>
-</library>
 <library name="SLAT-Digital">
 <description>SLAT Digital</description>
 <packages>
@@ -4195,7 +4161,6 @@ You are welcome to use this library for 
 <part name="GND215" library="supply1" deviceset="GND" device=""/>
 <part name="U5" library="SLAT-Digital" deviceset="LPS25H" device=""/>
 <part name="GND213" library="supply1" deviceset="GND" device=""/>
-<part name="SUPPLY211" library="SparkFun-Aesthetics" deviceset="3.3V" device=""/>
 <part name="FRAME1" library="SLAT-Frames" deviceset="STD1_TABL_L_R01" device=""/>
 <part name="GND10" library="SparkFun" deviceset="GND" device=""/>
 <part name="CM1" library="Protofusion-passives" deviceset="CAPACITOR" device="0402" value="12pF"/>
@@ -4233,6 +4198,11 @@ You are welcome to use this library for 
 <part name="P+11" library="SparkFun" deviceset="VCC" device=""/>
 <part name="R1" library="Protofusion-passives" deviceset="RESISTOR" device="0402" value="100k"/>
 <part name="R3" library="Protofusion-passives" deviceset="RESISTOR" device="0603" value="0"/>
+<part name="R7" library="Protofusion-passives" deviceset="RESISTOR" device="0402" value="4.7k"/>
+<part name="R10" library="Protofusion-passives" deviceset="RESISTOR" device="0402" value="4.7k"/>
+<part name="P+2" library="SparkFun" deviceset="VCC" device=""/>
+<part name="P+12" library="SparkFun" deviceset="VCC" device=""/>
+<part name="P+13" library="SparkFun" deviceset="VCC" device=""/>
 </parts>
 <sheets>
 <sheet>
@@ -4315,7 +4285,6 @@ You are welcome to use this library for 
 <instance part="GND215" gate="1" x="53.34" y="121.92"/>
 <instance part="U5" gate="G$1" x="71.12" y="139.7"/>
 <instance part="GND213" gate="1" x="17.78" y="134.62"/>
-<instance part="SUPPLY211" gate="G$1" x="17.78" y="154.94"/>
 <instance part="FRAME1" gate="G$1" x="0" y="0"/>
 <instance part="FRAME1" gate="G$2" x="330.2" y="15.24"/>
 <instance part="GND10" gate="1" x="203.2" y="76.2"/>
@@ -4405,6 +4374,17 @@ You are welcome to use this library for 
 <attribute name="NAME" x="40.132" y="130.5306" size="1.778" layer="95"/>
 <attribute name="VALUE" x="40.132" y="128.016" size="1.778" layer="96"/>
 </instance>
+<instance part="R7" gate="G$1" x="134.62" y="139.7" smashed="yes" rot="R90">
+<attribute name="NAME" x="136.906" y="140.1826" size="1.778" layer="95"/>
+<attribute name="VALUE" x="136.906" y="137.668" size="1.778" layer="96"/>
+</instance>
+<instance part="R10" gate="G$1" x="124.46" y="139.7" smashed="yes" rot="R90">
+<attribute name="NAME" x="126.746" y="140.1826" size="1.778" layer="95"/>
+<attribute name="VALUE" x="126.746" y="137.668" size="1.778" layer="96"/>
+</instance>
+<instance part="P+2" gate="1" x="124.46" y="147.32"/>
+<instance part="P+12" gate="1" x="134.62" y="147.32"/>
+<instance part="P+13" gate="1" x="17.78" y="154.94"/>
 </instances>
 <busses>
 </busses>
@@ -4678,6 +4658,38 @@ You are welcome to use this library for 
 <pinref part="U3" gate="G$1" pin="VDD"/>
 <pinref part="P+11" gate="1" pin="VCC"/>
 </segment>
+<segment>
+<pinref part="R10" gate="G$1" pin="2"/>
+<pinref part="P+2" gate="1" pin="VCC"/>
+<wire x1="124.46" y1="144.78" x2="124.46" y2="147.32" width="0.1524" layer="91"/>
+</segment>
+<segment>
+<pinref part="R7" gate="G$1" pin="2"/>
+<pinref part="P+12" gate="1" pin="VCC"/>
+<wire x1="134.62" y1="144.78" x2="134.62" y2="147.32" width="0.1524" layer="91"/>
+</segment>
+<segment>
+<pinref part="U5" gate="G$1" pin="VDD"/>
+<wire x1="55.88" y1="152.4" x2="50.8" y2="152.4" width="0.1524" layer="91"/>
+<wire x1="50.8" y1="152.4" x2="27.94" y2="152.4" width="0.1524" layer="91"/>
+<wire x1="27.94" y1="152.4" x2="17.78" y2="152.4" width="0.1524" layer="91"/>
+<wire x1="17.78" y1="152.4" x2="17.78" y2="154.94" width="0.1524" layer="91"/>
+<wire x1="27.94" y1="149.86" x2="27.94" y2="152.4" width="0.1524" layer="91"/>
+<junction x="27.94" y="152.4"/>
+<wire x1="17.78" y1="149.86" x2="17.78" y2="152.4" width="0.1524" layer="91"/>
+<junction x="17.78" y="152.4"/>
+<pinref part="C11" gate="G$1" pin="1"/>
+<pinref part="C12" gate="G$1" pin="1"/>
+<pinref part="U5" gate="G$1" pin="VDD-IO"/>
+<wire x1="55.88" y1="149.86" x2="50.8" y2="149.86" width="0.1524" layer="91"/>
+<pinref part="U5" gate="G$1" pin="CS"/>
+<wire x1="55.88" y1="137.16" x2="50.8" y2="137.16" width="0.1524" layer="91"/>
+<wire x1="50.8" y1="137.16" x2="50.8" y2="149.86" width="0.1524" layer="91"/>
+<wire x1="50.8" y1="149.86" x2="50.8" y2="152.4" width="0.1524" layer="91"/>
+<junction x="50.8" y="149.86"/>
+<junction x="50.8" y="152.4"/>
+<pinref part="P+13" gate="1" pin="VCC"/>
+</segment>
 </net>
 <net name="RADIO-GPIO1" class="0">
 <segment>
@@ -5000,30 +5012,6 @@ You are welcome to use this library for 
 <pinref part="U3" gate="G$1" pin="STBY"/>
 </segment>
 </net>
-<net name="3.3V" class="0">
-<segment>
-<pinref part="U5" gate="G$1" pin="VDD"/>
-<wire x1="55.88" y1="152.4" x2="50.8" y2="152.4" width="0.1524" layer="91"/>
-<wire x1="50.8" y1="152.4" x2="27.94" y2="152.4" width="0.1524" layer="91"/>
-<wire x1="27.94" y1="152.4" x2="17.78" y2="152.4" width="0.1524" layer="91"/>
-<wire x1="17.78" y1="152.4" x2="17.78" y2="154.94" width="0.1524" layer="91"/>
-<wire x1="27.94" y1="149.86" x2="27.94" y2="152.4" width="0.1524" layer="91"/>
-<junction x="27.94" y="152.4"/>
-<wire x1="17.78" y1="149.86" x2="17.78" y2="152.4" width="0.1524" layer="91"/>
-<junction x="17.78" y="152.4"/>
-<pinref part="SUPPLY211" gate="G$1" pin="3.3V"/>
-<pinref part="C11" gate="G$1" pin="1"/>
-<pinref part="C12" gate="G$1" pin="1"/>
-<pinref part="U5" gate="G$1" pin="VDD-IO"/>
-<wire x1="55.88" y1="149.86" x2="50.8" y2="149.86" width="0.1524" layer="91"/>
-<pinref part="U5" gate="G$1" pin="CS"/>
-<wire x1="55.88" y1="137.16" x2="50.8" y2="137.16" width="0.1524" layer="91"/>
-<wire x1="50.8" y1="137.16" x2="50.8" y2="149.86" width="0.1524" layer="91"/>
-<wire x1="50.8" y1="149.86" x2="50.8" y2="152.4" width="0.1524" layer="91"/>
-<junction x="50.8" y="149.86"/>
-<junction x="50.8" y="152.4"/>
-</segment>
-</net>
 <net name="SDA" class="0">
 <segment>
 <pinref part="U5" gate="G$1" pin="SDI/SDA"/>
@@ -5035,6 +5023,11 @@ You are welcome to use this library for 
 <wire x1="243.84" y1="223.52" x2="241.3" y2="223.52" width="0.1524" layer="91"/>
 <label x="243.84" y="223.52" size="1.27" layer="95" font="vector" xref="yes"/>
 </segment>
+<segment>
+<pinref part="R10" gate="G$1" pin="1"/>
+<wire x1="124.46" y1="132.08" x2="124.46" y2="134.62" width="0.1524" layer="91"/>
+<label x="124.46" y="132.08" size="1.27" layer="95" font="vector" rot="R270" xref="yes"/>
+</segment>
 </net>
 <net name="SCL" class="0">
 <segment>
@@ -5081,6 +5074,11 @@ You are welcome to use this library for 
 <wire x1="55.88" y1="144.78" x2="38.1" y2="144.78" width="0.1524" layer="91"/>
 <wire x1="38.1" y1="144.78" x2="38.1" y2="134.62" width="0.1524" layer="91"/>
 </segment>
+<segment>
+<pinref part="R7" gate="G$1" pin="1"/>
+<wire x1="134.62" y1="132.08" x2="134.62" y2="134.62" width="0.1524" layer="91"/>
+<label x="134.62" y="132.08" size="1.27" layer="95" font="vector" rot="R270" xref="yes"/>
+</segment>
 </net>
 </nets>
 </sheet>