diff --git a/schema/MCU_board/MCU_board.kicad_pcb b/schema/MCU_board/MCU_board.kicad_pcb
index c123119..be3db04 100644
--- a/schema/MCU_board/MCU_board.kicad_pcb
+++ b/schema/MCU_board/MCU_board.kicad_pcb
@@ -157,6 +157,57 @@
     )
   )
 
+  (footprint "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (layer "F.Cu")
+    (tedit 59FED5CC) (tstamp 40a6c4e4-0163-48c8-92ed-81a75ba9fd9c)
+    (at 180.34 86.36)
+    (descr "Through hole straight pin header, 1x04, 2.54mm pitch, single row")
+    (tags "Through hole pin header THT 1x04 2.54mm single row")
+    (property "Sheetfile" "MCU_board.kicad_sch")
+    (property "Sheetname" "")
+    (path "/08d4dc0e-32b3-4108-be1b-08755b504242")
+    (attr through_hole)
+    (fp_text reference "J4" (at 0 -2.33) (layer "F.SilkS")
+      (effects (font (size 1 1) (thickness 0.15)))
+      (tstamp b43c4cec-e493-4bd0-a798-0b2204e288da)
+    )
+    (fp_text value "Conn_I2C_out" (at 0 9.95) (layer "F.Fab")
+      (effects (font (size 1 1) (thickness 0.15)))
+      (tstamp 0a1e6f10-0340-4f28-bb87-298083738bf2)
+    )
+    (fp_text user "${REFERENCE}" (at 0 3.81 90) (layer "F.Fab")
+      (effects (font (size 1 1) (thickness 0.15)))
+      (tstamp 18fb9433-1090-44f7-8414-8852d84b494e)
+    )
+    (fp_line (start -1.33 1.27) (end -1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp 0eda532a-1e02-4a05-a55b-49dddd9ab9c1))
+    (fp_line (start -1.33 8.95) (end 1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp 213f2e15-5918-4dfb-95c9-846d06d16520))
+    (fp_line (start 1.33 1.27) (end 1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp 243b39a7-836a-435e-a221-106a37f822f7))
+    (fp_line (start -1.33 1.27) (end 1.33 1.27) (layer "F.SilkS") (width 0.12) (tstamp a8ece27c-5677-498e-9d34-b28227937be9))
+    (fp_line (start -1.33 -1.33) (end 0 -1.33) (layer "F.SilkS") (width 0.12) (tstamp b04fad5e-11d3-4194-95db-f2fae0c6d96e))
+    (fp_line (start -1.33 0) (end -1.33 -1.33) (layer "F.SilkS") (width 0.12) (tstamp e29f46f5-0d9b-4654-8f33-8aa71126d0d8))
+    (fp_line (start 1.8 9.4) (end 1.8 -1.8) (layer "F.CrtYd") (width 0.05) (tstamp 073f409d-d7c7-4d87-a1d6-90a73bd442d4))
+    (fp_line (start -1.8 -1.8) (end -1.8 9.4) (layer "F.CrtYd") (width 0.05) (tstamp a797d1f3-73f1-4416-8d4d-3eae9959fdfa))
+    (fp_line (start -1.8 9.4) (end 1.8 9.4) (layer "F.CrtYd") (width 0.05) (tstamp b26c4c6a-3cbe-4d02-8dfa-2f2daa8fbf98))
+    (fp_line (start 1.8 -1.8) (end -1.8 -1.8) (layer "F.CrtYd") (width 0.05) (tstamp b274904b-6204-48ec-aae2-7f3b06679e66))
+    (fp_line (start 1.27 8.89) (end -1.27 8.89) (layer "F.Fab") (width 0.1) (tstamp 2926cc3e-ec7e-499f-b919-7bf7a4234444))
+    (fp_line (start 1.27 -1.27) (end 1.27 8.89) (layer "F.Fab") (width 0.1) (tstamp 7f25b045-f7b1-4001-a559-f31e0bb8a401))
+    (fp_line (start -1.27 8.89) (end -1.27 -0.635) (layer "F.Fab") (width 0.1) (tstamp 97c7b1e1-5655-4816-95ea-18fba92b11dc))
+    (fp_line (start -1.27 -0.635) (end -0.635 -1.27) (layer "F.Fab") (width 0.1) (tstamp b9e8f347-eccd-4214-803b-8ac43dc4f01d))
+    (fp_line (start -0.635 -1.27) (end 1.27 -1.27) (layer "F.Fab") (width 0.1) (tstamp d5c13442-53ed-4176-8456-af31aa40dd48))
+    (pad "1" thru_hole rect (at 0 0) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
+      (net 10 "Net-(U1-Pad17)") (pinfunction "GND") (pintype "power_in") (tstamp 62703dfb-2b62-46cc-88d3-8bcce1262b07))
+    (pad "2" thru_hole oval (at 0 2.54) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
+      (net 7 "Net-(U1-Pad16)") (pinfunction "VCC") (pintype "power_in") (tstamp c8b019d7-0440-4702-b7bc-0c6e98e593c6))
+    (pad "3" thru_hole oval (at 0 5.08) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
+      (net 6 "Net-(U1-Pad19)") (pinfunction "SDA") (pintype "bidirectional") (tstamp fa36be4e-7de9-478f-a4ef-c229ac16c103))
+    (pad "4" thru_hole oval (at 0 7.62) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
+      (net 8 "Net-(U1-Pad18)") (pinfunction "SCL") (pintype "input") (tstamp fc991e31-8b48-465c-9197-72f4fa1bee7e))
+    (model "${KICAD6_3DMODEL_DIR}/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x04_P2.54mm_Vertical.wrl"
+      (offset (xyz 0 0 0))
+      (scale (xyz 1 1 1))
+      (rotate (xyz 0 0 0))
+    )
+  )
+
   (footprint "Diode_THT:D_A-405_P10.16mm_Horizontal" (layer "F.Cu")
     (tedit 5AE50CD5) (tstamp 461b57ca-6e57-4c93-acf1-d83265db0913)
     (at 144.78 93.98 -90)
@@ -497,57 +548,6 @@
     )
   )
 
-  (footprint "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (layer "F.Cu")
-    (tedit 59FED5CC) (tstamp ae8f59b6-c5dd-46dc-852a-e62d353873f6)
-    (at 180.34 86.36)
-    (descr "Through hole straight pin header, 1x04, 2.54mm pitch, single row")
-    (tags "Through hole pin header THT 1x04 2.54mm single row")
-    (property "Sheetfile" "MCU_board.kicad_sch")
-    (property "Sheetname" "")
-    (path "/68d48ad4-88ad-4719-bd22-02147a9c50c3")
-    (attr through_hole)
-    (fp_text reference "J4" (at 0 -2.33) (layer "F.SilkS")
-      (effects (font (size 1 1) (thickness 0.15)))
-      (tstamp ca0abfa7-5775-47fb-9b2a-92bc21f12755)
-    )
-    (fp_text value "Conn_I2C" (at -2.54 10.16) (layer "F.Fab")
-      (effects (font (size 1 1) (thickness 0.15)))
-      (tstamp 3b9386d1-0010-4e16-9053-3718b0a55307)
-    )
-    (fp_text user "${REFERENCE}" (at 0 3.81 90) (layer "F.Fab")
-      (effects (font (size 1 1) (thickness 0.15)))
-      (tstamp 526e5d6f-0df7-43c6-a5e5-aba48c38a164)
-    )
-    (fp_line (start -1.33 1.27) (end -1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp 0a4f01e7-4b70-400c-8c9d-1cdfb7f22bd8))
-    (fp_line (start -1.33 8.95) (end 1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp 6b2de4c6-83fc-4a0b-8961-3132fb813080))
-    (fp_line (start -1.33 0) (end -1.33 -1.33) (layer "F.SilkS") (width 0.12) (tstamp 8a9888d1-e4a7-4b64-a3e7-9d8e21085326))
-    (fp_line (start 1.33 1.27) (end 1.33 8.95) (layer "F.SilkS") (width 0.12) (tstamp a7e9488f-f086-462a-9bb1-61029c365678))
-    (fp_line (start -1.33 -1.33) (end 0 -1.33) (layer "F.SilkS") (width 0.12) (tstamp b3d9787f-99a9-4974-9405-bd3f1d9975ba))
-    (fp_line (start -1.33 1.27) (end 1.33 1.27) (layer "F.SilkS") (width 0.12) (tstamp e8bd73e3-54bf-488d-8d2a-baf97328680b))
-    (fp_line (start -1.8 -1.8) (end -1.8 9.4) (layer "F.CrtYd") (width 0.05) (tstamp 0fa9bc68-b6d9-41cb-9e43-975a3c0b0ea5))
-    (fp_line (start -1.8 9.4) (end 1.8 9.4) (layer "F.CrtYd") (width 0.05) (tstamp 4ea6d23e-7512-463e-8d54-e342b0ff89ad))
-    (fp_line (start 1.8 9.4) (end 1.8 -1.8) (layer "F.CrtYd") (width 0.05) (tstamp 90396c05-ad39-4619-86d0-537722b683fb))
-    (fp_line (start 1.8 -1.8) (end -1.8 -1.8) (layer "F.CrtYd") (width 0.05) (tstamp c04396e1-0c6c-4aa0-8f03-4fc619a2bc27))
-    (fp_line (start -0.635 -1.27) (end 1.27 -1.27) (layer "F.Fab") (width 0.1) (tstamp 336cb3e1-c411-4000-a39d-7b674b45ccab))
-    (fp_line (start -1.27 8.89) (end -1.27 -0.635) (layer "F.Fab") (width 0.1) (tstamp 4b00516e-fa1b-4292-801f-b47786730295))
-    (fp_line (start 1.27 -1.27) (end 1.27 8.89) (layer "F.Fab") (width 0.1) (tstamp 5ea430ff-9dca-466e-82f6-83c246f88745))
-    (fp_line (start 1.27 8.89) (end -1.27 8.89) (layer "F.Fab") (width 0.1) (tstamp 780760a6-f94a-49d9-9665-288cd1a04ac4))
-    (fp_line (start -1.27 -0.635) (end -0.635 -1.27) (layer "F.Fab") (width 0.1) (tstamp b8437e96-0da5-4663-8d24-5d248001bc2f))
-    (pad "1" thru_hole rect (at 0 0) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
-      (net 6 "Net-(U1-Pad19)") (pinfunction "SDA") (pintype "bidirectional") (tstamp 544e7fb2-1f2d-487d-8a99-b570aac351d9))
-    (pad "2" thru_hole oval (at 0 2.54) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
-      (net 7 "Net-(U1-Pad16)") (pinfunction "VCC") (pintype "power_in") (tstamp ee32e8cd-ab26-47ba-9b8d-45f12cfe08f7))
-    (pad "3" thru_hole oval (at 0 5.08) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
-      (net 8 "Net-(U1-Pad18)") (pinfunction "SCL") (pintype "input") (tstamp 79172b03-8790-4156-9fff-e6572285b556))
-    (pad "4" thru_hole oval (at 0 7.62) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
-      (net 10 "Net-(U1-Pad17)") (pinfunction "GND") (pintype "power_in") (tstamp 77f395a0-e150-4ffb-8ea1-5c603da24925))
-    (model "${KICAD6_3DMODEL_DIR}/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x04_P2.54mm_Vertical.wrl"
-      (offset (xyz 0 0 0))
-      (scale (xyz 1 1 1))
-      (rotate (xyz 0 0 0))
-    )
-  )
-
   (footprint "Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical" (layer "F.Cu")
     (tedit 59FED5CC) (tstamp be3a8a3f-7fae-4c0b-934b-4361acb787a4)
     (at 144.78 50.8)
@@ -742,7 +742,7 @@
   (dimension (type aligned) (layer "User.1") (tstamp a1df1579-7f98-456b-96b2-f2255e6a78f1)
     (pts (xy 139.7 109.22) (xy 139.7 43.18))
     (height -7.62)
-    (gr_text "66.0400 mm" (at 130.93 76.2 90) (layer "User.1") (tstamp 8a962e46-a09b-4002-9560-1ec291e152f4)
+    (gr_text "66.0400 mm" (at 130.93 76.2 90) (layer "User.1") (tstamp a1df1579-7f98-456b-96b2-f2255e6a78f1)
       (effects (font (size 1 1) (thickness 0.15)))
     )
     (format (units 3) (units_format 1) (precision 4))
@@ -751,7 +751,7 @@
   (dimension (type aligned) (layer "User.1") (tstamp b74d18b6-0a0c-4ef4-b5e7-77a6be3fc614)
     (pts (xy 139.7 109.22) (xy 183 109.22))
     (height 5.08)
-    (gr_text "43.3000 mm" (at 161.35 113.15) (layer "User.1") (tstamp 203eff38-5c86-45d7-8b0e-36659897a8dd)
+    (gr_text "43.3000 mm" (at 161.35 113.15) (layer "User.1") (tstamp b74d18b6-0a0c-4ef4-b5e7-77a6be3fc614)
       (effects (font (size 1 1) (thickness 0.15)))
     )
     (format (units 3) (units_format 1) (precision 4))
@@ -774,19 +774,15 @@
   (segment (start 143.51 54.61) (end 142.24 53.34) (width 0.25) (layer "B.Cu") (net 3) (tstamp 8b014bea-020e-4c32-8a2e-afb44e577967))
   (segment (start 143.51 67.31) (end 143.51 54.61) (width 0.25) (layer "B.Cu") (net 3) (tstamp a9881c4d-1698-40b0-8ef8-bcb44452f73f))
   (segment (start 144.78 50.8) (end 144.78 53.34) (width 0.25) (layer "F.Cu") (net 5) (tstamp 5259d978-b387-4967-b81c-f641c98585a8))
-  (segment (start 175.1375 86.36) (end 180.34 86.36) (width 0.25) (layer "F.Cu") (net 6) (tstamp 2f3e6f8a-067b-4be4-8100-0ee3ba1aa8d6))
-  (segment (start 182.245 88.9) (end 180.34 88.9) (width 0.25) (layer "F.Cu") (net 7) (tstamp 2b024001-3319-44c4-9a71-6abcf8cd2df7))
-  (segment (start 182.245 96.52) (end 182.245 88.9) (width 0.25) (layer "F.Cu") (net 7) (tstamp 656afe21-3714-4d3e-b229-e0beb358d8aa))
-  (segment (start 175.26 96.52) (end 175.1375 96.3975) (width 0.25) (layer "F.Cu") (net 7) (tstamp 75b0b0ae-baaa-40e8-8fd5-a33a1047c815))
-  (segment (start 175.26 96.52) (end 182.245 96.52) (width 0.25) (layer "F.Cu") (net 7) (tstamp 7fe237e8-1d0d-433a-9b24-5ea976762c57))
-  (segment (start 175.1375 96.3975) (end 175.1375 93.98) (width 0.25) (layer "F.Cu") (net 7) (tstamp 8f0c6a81-1452-45ce-b4b3-75e50b620399))
-  (segment (start 180.34 91.44) (end 177.8 88.9) (width 0.25) (layer "F.Cu") (net 8) (tstamp 30709b2e-b777-45ae-a45c-e8627bbcdf60))
-  (segment (start 177.8 88.9) (end 175.1375 88.9) (width 0.25) (layer "F.Cu") (net 8) (tstamp d91ae5d5-90c9-4521-8710-e306638e1d50))
+  (segment (start 180.34 91.44) (end 175.26 86.36) (width 0.25) (layer "B.Cu") (net 6) (tstamp 306ed877-4502-4466-9f5b-eb8b08088171))
+  (segment (start 180.2175 88.9) (end 180.34 88.9) (width 0.25) (layer "F.Cu") (net 7) (tstamp e709a026-ae63-4f05-a831-e970e04110d6))
+  (segment (start 175.1375 93.98) (end 180.2175 88.9) (width 0.25) (layer "F.Cu") (net 7) (tstamp eeaf6148-fd6c-43f2-a2c8-748ea0cfbde0))
+  (segment (start 180.34 93.98) (end 175.26 88.9) (width 0.25) (layer "B.Cu") (net 8) (tstamp dd673796-7a32-4f1f-b0c5-d2e15bb16cfe))
   (segment (start 160.02 88.9) (end 149.7375 88.9) (width 0.25) (layer "B.Cu") (net 9) (tstamp 527346bb-ea73-4a6b-90c5-e15d8df2e57f))
   (segment (start 167.64 81.28) (end 160.02 88.9) (width 0.25) (layer "B.Cu") (net 9) (tstamp 8fd52544-866c-407e-990a-b7ff97bb39d0))
   (segment (start 167.64 48.26) (end 167.64 81.28) (width 0.25) (layer "B.Cu") (net 9) (tstamp e39b0b7f-91f8-45ca-b50b-563bff3dc7f3))
-  (segment (start 180.34 93.98) (end 177.8 91.44) (width 0.25) (layer "F.Cu") (net 10) (tstamp 1d2462aa-204d-4f12-8e50-109c8d4bcd0e))
-  (segment (start 177.8 91.44) (end 175.1375 91.44) (width 0.25) (layer "F.Cu") (net 10) (tstamp e157eb32-72f8-4fc3-ac67-cd2ba1737fc5))
+  (segment (start 175.1375 91.44) (end 180.2175 86.36) (width 0.25) (layer "F.Cu") (net 10) (tstamp 343c5230-2143-4adb-ae08-17c61d26bb28))
+  (segment (start 180.2175 86.36) (end 180.34 86.36) (width 0.25) (layer "F.Cu") (net 10) (tstamp 443afc8a-7367-472e-86b7-88f28e70e7a6))
   (segment (start 154.94 60.96) (end 149.7375 60.96) (width 0.25) (layer "F.Cu") (net 32) (tstamp 61e763ec-1c1c-4f1e-a003-f55d7ad04f9f))
   (segment (start 154.94 48.26) (end 154.94 60.96) (width 0.25) (layer "F.Cu") (net 32) (tstamp e5c077a6-2e6e-4ddb-9cdd-7189d5453897))
   (segment (start 144.78 63.5) (end 149.7375 63.5) (width 0.25) (layer "F.Cu") (net 33) (tstamp 30bfa64d-761b-4732-997d-bd4590e66c7b))
diff --git a/schema/MCU_board/MCU_board.kicad_prl b/schema/MCU_board/MCU_board.kicad_prl
index 0ca1ae8..41e2012 100644
--- a/schema/MCU_board/MCU_board.kicad_prl
+++ b/schema/MCU_board/MCU_board.kicad_prl
@@ -1,6 +1,6 @@
 {
   "board": {
-    "active_layer": 31,
+    "active_layer": 0,
     "active_layer_preset": "All Layers",
     "auto_track_width": true,
     "hidden_nets": [],
diff --git a/schema/MCU_board/MCU_board.kicad_sch b/schema/MCU_board/MCU_board.kicad_sch
index 67938c2..cfc71a9 100644
--- a/schema/MCU_board/MCU_board.kicad_sch
+++ b/schema/MCU_board/MCU_board.kicad_sch
@@ -194,11 +194,11 @@
         )
       )
     )
-    (symbol "vehicle-monitor:Conn_I2C" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
+    (symbol "vehicle-monitor:Conn_I2C_out" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
       (property "Reference" "J" (id 0) (at 0 5.08 0)
         (effects (font (size 1.27 1.27)))
       )
-      (property "Value" "Conn_I2C" (id 1) (at 0 -7.62 0)
+      (property "Value" "Conn_I2C_out" (id 1) (at 0 -7.62 0)
         (effects (font (size 1.27 1.27)))
       )
       (property "Footprint" "" (id 2) (at 0 0 0)
@@ -216,7 +216,7 @@
       (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
-      (symbol "Conn_I2C_1_1"
+      (symbol "Conn_I2C_out_1_1"
         (arc (start 0 -4.572) (mid -0.508 -5.08) (end 0 -5.588)
           (stroke (width 0.1524) (type default) (color 0 0 0 0))
           (fill (type none))
@@ -265,20 +265,20 @@
           (stroke (width 0.1524) (type default) (color 0 0 0 0))
           (fill (type none))
         )
-        (pin bidirectional line (at -5.08 2.54 0) (length 3.81)
-          (name "SDA" (effects (font (size 1.27 1.27))))
+        (pin power_in line (at -5.08 2.54 0) (length 3.81)
+          (name "GND" (effects (font (size 1.27 1.27))))
           (number "1" (effects (font (size 1.27 1.27))))
         )
         (pin power_in line (at -5.08 0 0) (length 3.81)
           (name "VCC" (effects (font (size 1.27 1.27))))
           (number "2" (effects (font (size 1.27 1.27))))
         )
-        (pin input line (at -5.08 -2.54 0) (length 3.81)
-          (name "SCL" (effects (font (size 1.27 1.27))))
+        (pin bidirectional line (at -5.08 -2.54 0) (length 3.81)
+          (name "SDA" (effects (font (size 1.27 1.27))))
           (number "3" (effects (font (size 1.27 1.27))))
         )
-        (pin power_in line (at -5.08 -5.08 0) (length 3.81)
-          (name "GND" (effects (font (size 1.27 1.27))))
+        (pin input line (at -5.08 -5.08 0) (length 3.81)
+          (name "SCL" (effects (font (size 1.27 1.27))))
           (number "4" (effects (font (size 1.27 1.27))))
         )
       )
@@ -618,13 +618,9 @@
   (no_connect (at 104.14 72.39) (uuid 7a036c8b-424e-4cd3-9042-9dd09fe44ac3))
   (no_connect (at 55.88 90.17) (uuid 88da4feb-5ac5-4c93-8129-1e77912cab38))
   (no_connect (at 104.14 69.85) (uuid 8df7c71e-685c-43dd-af60-6f9cdc315f85))
-  (no_connect (at 104.14 77.47) (uuid 8df7c71e-685c-43dd-af60-6f9cdc315f85))
+  (no_connect (at 104.14 77.47) (uuid 8df7c71e-685c-43dd-af60-6f9cdc315f86))
   (no_connect (at 39.37 62.23) (uuid a6b973bf-3c82-4206-bae7-4f835d16d359))
 
-  (wire (pts (xy 120.65 102.87) (xy 116.84 102.87))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 03bdb3a9-99da-4a9d-b4de-ea5d44c5375d)
-  )
   (wire (pts (xy 52.07 48.26) (xy 52.07 72.39))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 0a75f629-dc23-4df2-b397-19a4ff553330)
@@ -637,6 +633,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 0b437303-3880-4c2e-936f-36b72f5e5c8c)
   )
+  (wire (pts (xy 113.03 105.41) (xy 110.49 105.41))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 0fbcf9fb-bb57-456a-8653-a4c4bb03bb9f)
+  )
   (wire (pts (xy 49.53 100.33) (xy 55.88 100.33))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 1adb5de4-24a9-45d7-81f0-5bb173e17332)
@@ -649,10 +649,6 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 28de7ab2-5104-44e4-a384-a70b203c9561)
   )
-  (wire (pts (xy 120.65 100.33) (xy 111.76 100.33))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 2b987127-3cac-4e35-9c3d-694bd7681a86)
-  )
   (wire (pts (xy 53.34 102.87) (xy 53.34 114.3))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 326f85fb-bd1a-4172-a917-81275d6083c2)
@@ -661,10 +657,6 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 37690a42-79e7-4c25-8ae9-f4f53a22fa80)
   )
-  (wire (pts (xy 104.14 102.87) (xy 111.76 102.87))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 3a71d802-60c2-4597-9fb9-cc97819f713f)
-  )
   (wire (pts (xy 43.18 114.3) (xy 53.34 114.3))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 3d14855f-21d9-4e50-89ce-47c175a25393)
@@ -673,18 +665,26 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 4269b426-1ca0-4358-b7c8-f87d360b6b77)
   )
-  (wire (pts (xy 111.76 100.33) (xy 111.76 102.87))
+  (wire (pts (xy 113.03 107.95) (xy 107.95 107.95))
     (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 5d0a65ac-0f98-4e54-8986-29ee527ccb68)
+    (uuid 4cbb8332-242f-4e26-97ae-b244a79447d2)
   )
   (wire (pts (xy 49.53 69.85) (xy 49.53 93.98))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 5f6cca41-50ca-4ee1-8224-0e6c495b17fd)
   )
+  (wire (pts (xy 104.14 97.79) (xy 107.95 97.79))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 6bcce826-921a-46ac-9369-b842f7a0419f)
+  )
   (wire (pts (xy 43.18 67.31) (xy 43.18 114.3))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 6ef72d17-b82e-4eb1-b202-9006955a067e)
   )
+  (wire (pts (xy 110.49 105.41) (xy 110.49 95.25))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 72a4f775-0bac-4378-9cd2-066589a746ab)
+  )
   (wire (pts (xy 55.88 102.87) (xy 53.34 102.87))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 7c612bdd-6a82-4fcf-baa9-8fdefcb06f1d)
@@ -697,14 +697,6 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 854f4387-3ca1-4ede-a296-fb94988ed5ae)
   )
-  (wire (pts (xy 106.68 105.41) (xy 120.65 105.41))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 8a0f11a0-d852-4a05-a4bb-1b938716cab3)
-  )
-  (wire (pts (xy 104.14 95.25) (xy 119.38 95.25))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 92e41270-281f-4aea-9d59-f03dff60bd6c)
-  )
   (wire (pts (xy 55.88 97.79) (xy 46.99 97.79))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 9751e2d6-d81e-44e0-b624-fc92d289c52a)
@@ -713,34 +705,18 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 9918ed3d-ef60-4f9c-bbab-d5a94c54dede)
   )
-  (wire (pts (xy 106.68 100.33) (xy 106.68 105.41))
+  (wire (pts (xy 104.14 100.33) (xy 113.03 100.33))
     (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid 9984a841-0cf2-4f1a-95e2-4ffbe58791f4)
-  )
-  (wire (pts (xy 116.84 102.87) (xy 116.84 97.79))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid a2826912-2e69-451f-ac0e-3a505449d457)
+    (uuid b439c5aa-7a69-4a25-90c0-d6b8c216ef49)
   )
   (wire (pts (xy 27.94 114.3) (xy 31.75 114.3))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid b54d57a7-95c9-46b9-bf84-99ca3de4bc2a)
   )
-  (wire (pts (xy 119.38 97.79) (xy 120.65 97.79))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid b5a7129f-0c7b-45ac-bbb1-f70d3a93425e)
-  )
   (wire (pts (xy 53.34 69.85) (xy 53.34 64.77))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid b608d723-64cb-4821-89bc-b59779f3b789)
   )
-  (wire (pts (xy 104.14 100.33) (xy 106.68 100.33))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid b8fd4969-4363-410e-924e-6b7bcbb89b9a)
-  )
-  (wire (pts (xy 116.84 97.79) (xy 104.14 97.79))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid bc478de9-0398-4d09-a432-46370c2c846f)
-  )
   (wire (pts (xy 39.37 69.85) (xy 49.53 69.85))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid cb381139-6573-4e1a-a168-3c5ba08b42e2)
@@ -749,6 +725,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid cb54d583-7e30-4069-8a8b-0ae032abbdcc)
   )
+  (wire (pts (xy 104.14 95.25) (xy 110.49 95.25))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid ce0cef7c-e77e-4ae8-8427-97604cbd0d43)
+  )
   (wire (pts (xy 55.88 72.39) (xy 52.07 72.39))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid d19fc569-63e1-438f-8951-de7a890123ae)
@@ -757,10 +737,6 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid d927fac5-fb7e-4140-8868-e63f9149f99a)
   )
-  (wire (pts (xy 119.38 97.79) (xy 119.38 95.25))
-    (stroke (width 0) (type default) (color 0 0 0 0))
-    (uuid d92df820-e722-4171-870f-80f9f68ed3e9)
-  )
   (wire (pts (xy 39.37 64.77) (xy 53.34 64.77))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid db08d23b-92e3-4f99-8704-1a66ba98c4e9)
@@ -769,6 +745,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid e15ae67b-2c04-433b-9d01-93c6a63abb6c)
   )
+  (wire (pts (xy 107.95 107.95) (xy 107.95 97.79))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid e786ce55-4e74-4e2d-aa0a-f19cd837f06e)
+  )
   (wire (pts (xy 49.53 69.85) (xy 49.53 58.42))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid e7f1f501-2e1d-458c-b01d-ce16b3bc01fa)
@@ -777,6 +757,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid e8cd2542-7093-49d9-bf59-620b68c60f26)
   )
+  (wire (pts (xy 104.14 102.87) (xy 113.03 102.87))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid e96cf019-071b-4fb9-85d0-e0a7999725eb)
+  )
 
   (symbol (lib_id "vehicle-monitor:Conn_battery") (at 35.56 38.1 180) (unit 1)
     (in_bom yes) (on_board yes)
@@ -796,6 +780,27 @@
     (pin "1" (uuid 29ba9586-c26f-4607-977c-dcfce12c2b9e))
   )
 
+  (symbol (lib_id "vehicle-monitor:Conn_I2C_out") (at 118.11 102.87 0) (unit 1)
+    (in_bom yes) (on_board yes)
+    (uuid 08d4dc0e-32b3-4108-be1b-08755b504242)
+    (property "Reference" "J4" (id 0) (at 115.57 97.79 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "Conn_I2C_out" (id 1) (at 113.03 110.49 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 118.11 102.87 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 118.11 102.87 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 2fd71249-6619-409b-b5d7-08b242b5553a))
+    (pin "2" (uuid 06c8f2a7-adb3-45a0-9a56-4bcacfdf23c6))
+    (pin "3" (uuid e90e3e37-b34e-4301-aab9-1901219e0337))
+    (pin "4" (uuid 51a51e91-ae1f-49a4-8ea3-d7b2167130c6))
+  )
+
   (symbol (lib_id "vehicle-monitor:Conn_speed_sensor") (at 33.02 93.98 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 5146355b-d187-42d7-bcfd-5946aeb905a6)
@@ -830,27 +835,6 @@
     (pin "2" (uuid 052acc87-8ff9-4162-8f55-f7121d221d0a))
   )
 
-  (symbol (lib_id "vehicle-monitor:Conn_I2C") (at 125.73 100.33 0) (unit 1)
-    (in_bom yes) (on_board yes)
-    (uuid 68d48ad4-88ad-4719-bd22-02147a9c50c3)
-    (property "Reference" "J4" (id 0) (at 123.19 95.25 0)
-      (effects (font (size 1.27 1.27)) (justify left))
-    )
-    (property "Value" "Conn_I2C" (id 1) (at 121.92 107.95 0)
-      (effects (font (size 1.27 1.27)) (justify left))
-    )
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 125.73 100.33 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "~" (id 3) (at 125.73 100.33 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 59d779a5-8a3b-4c40-8b2c-9d00c3edb847))
-    (pin "2" (uuid ed3b13f0-9e83-4262-9145-574f985910d5))
-    (pin "3" (uuid 15a127ab-9aac-4151-8d0d-add612fc058d))
-    (pin "4" (uuid 0995148b-a972-4564-8d50-aefbef2d904d))
-  )
-
   (symbol (lib_id "Device:R") (at 49.53 54.61 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 7e7b48e4-998f-4cd0-8159-bed4f4488c89)
@@ -985,8 +969,8 @@
     (path "/013b7fe0-c393-480f-8f21-7b7e62b335e8"
       (reference "J3") (unit 1) (value "Conn_battery") (footprint "Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical")
     )
-    (path "/68d48ad4-88ad-4719-bd22-02147a9c50c3"
-      (reference "J4") (unit 1) (value "Conn_I2C") (footprint "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical")
+    (path "/08d4dc0e-32b3-4108-be1b-08755b504242"
+      (reference "J4") (unit 1) (value "Conn_I2C_out") (footprint "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical")
     )
     (path "/5146355b-d187-42d7-bcfd-5946aeb905a6"
       (reference "J5") (unit 1) (value "Conn_speed_sensor") (footprint "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical")
diff --git a/schema/library/vehicle-monitor.kicad_sym b/schema/library/vehicle-monitor.kicad_sym
index 25aa806..a5b7550 100644
--- a/schema/library/vehicle-monitor.kicad_sym
+++ b/schema/library/vehicle-monitor.kicad_sym
@@ -177,11 +177,11 @@
       )
     )
   )
-  (symbol "Conn_I2C" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
+  (symbol "Conn_I2C_out" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
     (property "Reference" "J" (id 0) (at 0 5.08 0)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Value" "Conn_I2C" (id 1) (at 0 -7.62 0)
+    (property "Value" "Conn_I2C_out" (id 1) (at 0 -7.62 0)
       (effects (font (size 1.27 1.27)))
     )
     (property "Footprint" "" (id 2) (at 0 0 0)
@@ -199,7 +199,7 @@
     (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (symbol "Conn_I2C_1_1"
+    (symbol "Conn_I2C_out_1_1"
       (arc (start 0 -4.572) (mid -0.508 -5.08) (end 0 -5.588)
         (stroke (width 0.1524) (type default) (color 0 0 0 0))
         (fill (type none))
@@ -248,20 +248,20 @@
         (stroke (width 0.1524) (type default) (color 0 0 0 0))
         (fill (type none))
       )
-      (pin bidirectional line (at -5.08 2.54 0) (length 3.81)
-        (name "SDA" (effects (font (size 1.27 1.27))))
+      (pin power_in line (at -5.08 2.54 0) (length 3.81)
+        (name "GND" (effects (font (size 1.27 1.27))))
         (number "1" (effects (font (size 1.27 1.27))))
       )
       (pin power_in line (at -5.08 0 0) (length 3.81)
         (name "VCC" (effects (font (size 1.27 1.27))))
         (number "2" (effects (font (size 1.27 1.27))))
       )
-      (pin input line (at -5.08 -2.54 0) (length 3.81)
-        (name "SCL" (effects (font (size 1.27 1.27))))
+      (pin bidirectional line (at -5.08 -2.54 0) (length 3.81)
+        (name "SDA" (effects (font (size 1.27 1.27))))
         (number "3" (effects (font (size 1.27 1.27))))
       )
-      (pin power_in line (at -5.08 -5.08 0) (length 3.81)
-        (name "GND" (effects (font (size 1.27 1.27))))
+      (pin input line (at -5.08 -5.08 0) (length 3.81)
+        (name "SCL" (effects (font (size 1.27 1.27))))
         (number "4" (effects (font (size 1.27 1.27))))
       )
     )