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="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="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="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"/>
@@ -53,22 +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="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="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="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"/>
@@ -4076,131 +4076,6 @@ You are welcome to use this library for 
 </deviceset>
 </devicesets>
 </library>
-<library name="SLAT-MicroProc">
-<description>SLAT Microprocessors</description>
-<packages>
-<package name="UFQFPN28">
-<wire x1="-2.146" y1="2.146" x2="2.154" y2="2.146" width="0.2032" layer="51"/>
-<wire x1="2.154" y1="2.146" x2="2.154" y2="-2.154" width="0.2032" layer="51"/>
-<wire x1="2.154" y1="-2.154" x2="-2.146" y2="-2.154" width="0.2032" layer="51"/>
-<wire x1="-2.146" y1="-2.154" x2="-2.146" y2="2.146" width="0.2032" layer="51"/>
-<smd name="1" x="-2.096" y="1.496" dx="0.7" dy="0.3" layer="1"/>
-<smd name="2" x="-2.096" y="0.996" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="3" x="-2.096" y="0.496" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="4" x="-2.096" y="-0.004" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="5" x="-2.096" y="-0.504" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="6" x="-2.096" y="-1.004" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="7" x="-2.096" y="-1.504" dx="0.7" dy="0.3" layer="1" roundness="100"/>
-<smd name="8" x="-1.496" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="9" x="-0.996" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="10" x="-0.496" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="11" x="0.004" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="12" x="0.504" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="13" x="1.004" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="14" x="1.504" y="-2.104" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R90"/>
-<smd name="15" x="2.104" y="-1.504" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="16" x="2.104" y="-1.004" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="17" x="2.104" y="-0.504" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="18" x="2.104" y="-0.004" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="19" x="2.104" y="0.496" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="20" x="2.104" y="0.996" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="21" x="2.104" y="1.496" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R180"/>
-<smd name="22" x="1.504" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="23" x="1.004" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="24" x="0.504" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="25" x="0.004" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="26" x="-0.496" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="27" x="-0.996" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<smd name="28" x="-1.496" y="2.096" dx="0.7" dy="0.3" layer="1" roundness="100" rot="R270"/>
-<rectangle x1="-2.196" y1="1.746" x2="-1.746" y2="2.196" layer="21"/>
-<rectangle x1="-2.196" y1="0" x2="0" y2="2.196" layer="51"/>
-<text x="-1.778" y="2.54" size="0.8128" layer="25" font="vector" ratio="16">&gt;NAME</text>
-<text x="-2.286" y="-3.556" size="0.8128" layer="27" font="vector" ratio="16">&gt;VALUE</text>
-</package>
-</packages>
-<symbols>
-<symbol name="STM32F031G6U6">
-<wire x1="-38.1" y1="22.86" x2="38.1" y2="22.86" width="0.254" layer="94"/>
-<wire x1="38.1" y1="22.86" x2="38.1" y2="-20.32" width="0.254" layer="94"/>
-<wire x1="38.1" y1="-20.32" x2="-38.1" y2="-20.32" width="0.254" layer="94"/>
-<text x="-38.1" y="23.622" size="2.54" layer="95">&gt;NAME</text>
-<text x="-38.1" y="-23.876" size="2.54" layer="96">&gt;VALUE</text>
-<pin name="BOOT0" x="-43.18" y="17.78" length="middle"/>
-<pin name="PF0/OSC_IN" x="-43.18" y="15.24" length="middle"/>
-<pin name="PF1/OSC_OUT" x="-43.18" y="12.7" length="middle"/>
-<pin name="NRST" x="-43.18" y="10.16" length="middle"/>
-<pin name="VDDA" x="-43.18" y="7.62" length="middle"/>
-<pin name="PA0" x="-43.18" y="5.08" length="middle"/>
-<pin name="PA1/TIM2_2" x="-43.18" y="2.54" length="middle"/>
-<pin name="PA2/TIM2_3/USART1_TX" x="-43.18" y="0" length="middle"/>
-<pin name="PA3/TIM2_4/USART1_RX" x="-43.18" y="-2.54" length="middle"/>
-<pin name="PA4/SPI1_NSS/TIM14_1" x="-43.18" y="-5.08" length="middle"/>
-<pin name="PA5/SPI1_SCK" x="-43.18" y="-7.62" length="middle"/>
-<pin name="PA6/SPI1_MISO/TIM3_1" x="-43.18" y="-10.16" length="middle"/>
-<pin name="PA7/SPI1_MOSI/TIM3_2" x="-43.18" y="-12.7" length="middle"/>
-<pin name="PB0/TIM3_3" x="-43.18" y="-15.24" length="middle"/>
-<pin name="PB1/TIM3_4" x="-43.18" y="-17.78" length="middle"/>
-<pin name="VSS" x="43.18" y="-17.78" length="middle" rot="R180"/>
-<pin name="TIM1_1/MCO/PA8" x="43.18" y="-12.7" length="middle" rot="R180"/>
-<pin name="UART1_TX/TIM1_2/I2C1_SCL/PA9" x="43.18" y="-10.16" length="middle" rot="R180"/>
-<pin name="USART1_TX/TIM1_3/I2C1_SDA/PA10" x="43.18" y="-7.62" length="middle" rot="R180"/>
-<pin name="SWDIO/PA13" x="43.18" y="0" length="middle" rot="R180"/>
-<pin name="USART1_TX/SWCLK/PA14" x="43.18" y="2.54" length="middle" rot="R180"/>
-<pin name="SPI1_NSS/USART1_RX/PA15" x="43.18" y="5.08" length="middle" rot="R180"/>
-<pin name="SPI1_SCK/TIM2_2/PB3" x="43.18" y="7.62" length="middle" rot="R180"/>
-<pin name="SPI1_MISO/TIM3_1/PB4" x="43.18" y="10.16" length="middle" rot="R180"/>
-<pin name="SPI1_MOSI/TIM3_2/PB5" x="43.18" y="12.7" length="middle" rot="R180"/>
-<pin name="I2C1_SCL/USART1_TX/PB6" x="43.18" y="15.24" length="middle" rot="R180"/>
-<pin name="I2C1_SDA/USART1_RX/PB7" x="43.18" y="17.78" length="middle" rot="R180"/>
-<wire x1="-38.1" y1="22.86" x2="-38.1" y2="-20.32" width="0.254" layer="94"/>
-<pin name="VDD" x="43.18" y="-15.24" length="middle" rot="R180"/>
-</symbol>
-</symbols>
-<devicesets>
-<deviceset name="STM32F031G6U6" prefix="U">
-<gates>
-<gate name="G$1" symbol="STM32F031G6U6" x="0" y="0"/>
-</gates>
-<devices>
-<device name="" package="UFQFPN28">
-<connects>
-<connect gate="G$1" pin="BOOT0" pad="1"/>
-<connect gate="G$1" pin="I2C1_SCL/USART1_TX/PB6" pad="27"/>
-<connect gate="G$1" pin="I2C1_SDA/USART1_RX/PB7" pad="28"/>
-<connect gate="G$1" pin="NRST" pad="4"/>
-<connect gate="G$1" pin="PA0" pad="6"/>
-<connect gate="G$1" pin="PA1/TIM2_2" pad="7"/>
-<connect gate="G$1" pin="PA2/TIM2_3/USART1_TX" pad="8"/>
-<connect gate="G$1" pin="PA3/TIM2_4/USART1_RX" pad="9"/>
-<connect gate="G$1" pin="PA4/SPI1_NSS/TIM14_1" pad="10"/>
-<connect gate="G$1" pin="PA5/SPI1_SCK" pad="11"/>
-<connect gate="G$1" pin="PA6/SPI1_MISO/TIM3_1" pad="12"/>
-<connect gate="G$1" pin="PA7/SPI1_MOSI/TIM3_2" pad="13"/>
-<connect gate="G$1" pin="PB0/TIM3_3" pad="14"/>
-<connect gate="G$1" pin="PB1/TIM3_4" pad="15"/>
-<connect gate="G$1" pin="PF0/OSC_IN" pad="2"/>
-<connect gate="G$1" pin="PF1/OSC_OUT" pad="3"/>
-<connect gate="G$1" pin="SPI1_MISO/TIM3_1/PB4" pad="25"/>
-<connect gate="G$1" pin="SPI1_MOSI/TIM3_2/PB5" pad="26"/>
-<connect gate="G$1" pin="SPI1_NSS/USART1_RX/PA15" pad="23"/>
-<connect gate="G$1" pin="SPI1_SCK/TIM2_2/PB3" pad="24"/>
-<connect gate="G$1" pin="SWDIO/PA13" pad="21"/>
-<connect gate="G$1" pin="TIM1_1/MCO/PA8" pad="18"/>
-<connect gate="G$1" pin="UART1_TX/TIM1_2/I2C1_SCL/PA9" pad="19"/>
-<connect gate="G$1" pin="USART1_TX/SWCLK/PA14" pad="22"/>
-<connect gate="G$1" pin="USART1_TX/TIM1_3/I2C1_SDA/PA10" pad="20"/>
-<connect gate="G$1" pin="VDD" pad="17"/>
-<connect gate="G$1" pin="VDDA" pad="5"/>
-<connect gate="G$1" pin="VSS" pad="16"/>
-</connects>
-<technologies>
-<technology name=""/>
-</technologies>
-</device>
-</devices>
-</deviceset>
-</devicesets>
-</library>
 </libraries>
 <attributes>
 </attributes>
@@ -4298,7 +4173,6 @@ You are welcome to use this library for 
 <part name="P+14" library="SparkFun" deviceset="VCC" device=""/>
 <part name="P+15" library="SparkFun" deviceset="VCC" device=""/>
 <part name="C10" library="Protofusion-passives" deviceset="CAPACITOR" device="0402" value="0.1uF"/>
-<part name="U5" library="SLAT-MicroProc" deviceset="STM32F031G6U6" device=""/>
 </parts>
 <sheets>
 <sheet>
@@ -4307,7 +4181,7 @@ You are welcome to use this library for 
 <text x="300.99" y="27.432" size="3.048" layer="128" font="vector">Protofusion / SeaLandAire Technologies</text>
 <text x="190.5" y="106.68" size="2.1844" layer="128" font="vector">Class-E 434MHz Match</text>
 <text x="273.304" y="1.524" size="2.1844" layer="128" font="vector">E. Zonca</text>
-<text x="388.62" y="6.35" size="3.048" layer="128" font="vector">01</text>
+<text x="388.62" y="6.35" size="3.048" layer="128" font="vector">02</text>
 <text x="309.88" y="16.764" size="3.81" layer="128" font="vector">FeatherHAB 70cm PCB Assy</text>
 <text x="43.942" y="85.852" size="5.08" layer="128">GPS</text>
 <text x="30.48" y="241.3" size="5.08" layer="128" font="vector">Power Supply</text>
@@ -4477,7 +4351,6 @@ You are welcome to use this library for 
 <instance part="P+14" gate="1" x="76.2" y="149.86"/>
 <instance part="P+15" gate="1" x="20.32" y="149.86"/>
 <instance part="C10" gate="G$1" x="35.56" y="139.7"/>
-<instance part="U5" gate="G$1" x="185.42" y="144.78"/>
 </instances>
 <busses>
 </busses>