diff --git a/README.md b/README.md
index 324c4c554761a517be84220c46cdf44953090da4..929fac0d2d248ded0b6c7786481a7294a0146e2a 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,10 @@
 	<li><a href='i2c/loadcell-reading-v-force.png'>Results</a></li>
 </ul>
 
+## Pro Tips Etc
+
+ - Some XMEGAs have a JTAG peripheral (to program w/o PDI, and for debugging). There is a JTAG fuse which is set 'on' to default: this will prevent you from using the pins that JTAG uses. On the XMEGA A3U series, this is in PortB. 
+
 ## Atmel Studio Toolchain
 
 ``` !warn! windows only, sorry ```
diff --git a/circuit/bbxmega/eagle.epf b/circuit/bbxmega/eagle.epf
index 86874853922ce7339758684454ea5e9126057116..724c00f6484e8466cf898e595aa1643a6dcb89e0 100644
--- a/circuit/bbxmega/eagle.epf
+++ b/circuit/bbxmega/eagle.epf
@@ -1,5 +1,5 @@
 [Eagle]
-Version="08 03 02"
+Version="09 01 01"
 Platform="Windows"
 Globals="Globals"
 Desktop="Desktop"
@@ -10,39 +10,20 @@ UsedLibraryUrn="urn:adsk.eagle:library:217"
 UsedLibraryUrn="urn:adsk.eagle:library:325"
 UsedLibraryUrn="urn:adsk.eagle:library:371"
 UsedLibrary="D:/Dropbox (Personal)/CBA/doc/libraries/eagle/fab.lbr"
-UsedLibrary="D:/Dropbox (Personal)/CBA/doc/libraries_jake/eagle/jake/tag-connect-2030.lbr"
 UsedLibrary="D:/Dropbox (Personal)/CBA/doc/libraries_jake/eagle/jake/tag-connect-2050.lbr"
 UsedLibrary="D:/Dropbox (Personal)/CBA/doc/libraries_jake/eagle/sparkfun/SparkFun-Connectors.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/Comparators.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/Digital.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/FilterProducts.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/Misc.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/Opamps.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/Optos.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/PAsystem.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/PowerProducts.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/References.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/SpecialFunctions.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/capmeter.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/diode.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/lt-spice-simulation.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/lt-supply.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/rload.lbr"
-UsedLibrary="C:/EAGLE 8.3.2/lbr/ltspice/sym.lbr"
 UsedLibrary="D:/Dropbox (Personal)/CBA/doc/libraries_jake/eagle/marekr/borkedlabs-passives.lbr"
 
 [Win_1]
-Type="Schematic Editor"
-Loc="0 0 1919 1016"
-State=1
-Number=2
-File="bbxmega.sch"
-View="-13.5313 5.97904 167.1 132.776"
-WireWidths=" 0.0762 0.1016 0.127 0.15 0.2 0.2032 0.254 0.3048 0.4064 0.508 0.6096 0.8128 1.016 1.27 2.54 0.1524"
+Type="Board Editor"
+Number=1
+File="bbxmega.brd"
+View="-0.0538375 -4.25636 63.4947 47.255"
+WireWidths=" 0.0762 0.1016 0.127 0.15 0.2 0.2032 0.3048 0.4064 0.508 0.6096 0.8128 1.016 1.27 2.54 0.1524 0.254"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
 PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
 ViaDiameters=" 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15 1.2 1.3 0"
-ViaDrills=" 0.2 0.25 0.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 1 0.35"
+ViaDrills=" 0.25 0.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 1 0.35 0.8636"
 HoleDrills=" 0.2 0.25 0.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 1 0.35"
 TextSizes=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778"
 PolygonSpacings=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.27"
@@ -53,14 +34,14 @@ DimensionExtWidths=" 0.127 0.254 0.1 0.13 0.26 0"
 DimensionExtLengths=" 1.27 2.54 1 2 3 0"
 DimensionExtOffsets=" 1.27 2.54 1 2 3 0"
 SmdSizes=" 0.3048 0.1524 0.4064 0.2032 0.6096 0.3048 0.8128 0.4064 1.016 0.508 1.27 0.6604 1.4224 0.7112 1.6764 0.8128 1.778 0.9144 1.9304 0.9652 2.1844 1.0668 2.54 1.27 3.81 1.9304 5.08 2.54 6.4516 3.2512 1.27 0.635"
-WireBend=0
-WireBendSet=31
+WireBend=3
+WireBendSet=0
 WireCap=1
 MiterStyle=0
 PadShape=0
 ViaShape=1
 PolygonPour=0
-PolygonRank=0
+PolygonRank=1
 PolygonThermals=1
 PolygonOrphans=0
 TextRatio=8
@@ -75,17 +56,13 @@ SwapLevel=0
 ArcDirection=0
 AddLevel=2
 PadsSameType=0
-Layer=91
-Views=" 1: -13.5313 5.97904 167.1 132.776"
-Sheet="1"
+Layer=1
 
 [Win_2]
-Type="Board Editor"
-Loc="0 0 1919 1016"
-State=1
-Number=1
-File="bbxmega.brd"
-View="-1.29872 8.23325 42.8321 44.005"
+Type="Schematic Editor"
+Number=2
+File="bbxmega.sch"
+View="35.5536 22.2327 122.664 83.3809"
 WireWidths=" 0.0762 0.1016 0.127 0.15 0.2 0.2032 0.254 0.3048 0.4064 0.508 0.6096 0.8128 1.016 1.27 2.54 0.1524"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
 PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
@@ -101,14 +78,14 @@ DimensionExtWidths=" 0.127 0.254 0.1 0.13 0.26 0"
 DimensionExtLengths=" 1.27 2.54 1 2 3 0"
 DimensionExtOffsets=" 1.27 2.54 1 2 3 0"
 SmdSizes=" 0.3048 0.1524 0.4064 0.2032 0.6096 0.3048 0.8128 0.4064 1.016 0.508 1.27 0.6604 1.4224 0.7112 1.6764 0.8128 1.778 0.9144 1.9304 0.9652 2.1844 1.0668 2.54 1.27 3.81 1.9304 5.08 2.54 6.4516 3.2512 1.27 0.635"
-WireBend=1
-WireBendSet=0
+WireBend=0
+WireBendSet=31
 WireCap=1
 MiterStyle=0
 PadShape=0
 ViaShape=1
 PolygonPour=0
-PolygonRank=1
+PolygonRank=0
 PolygonThermals=1
 PolygonOrphans=0
 TextRatio=8
@@ -123,12 +100,12 @@ SwapLevel=0
 ArcDirection=0
 AddLevel=2
 PadsSameType=0
-Layer=1
+Layer=91
+Views=" 1: 35.5536 22.2327 122.664 83.3809"
+Sheet="1"
 
 [Win_3]
 Type="Control Panel"
-Loc="0 0 1919 1039"
-State=1
 Number=0
 
 [Desktop]