diff --git a/schema/library/vehicle-monitor.kicad_sym b/schema/library/vehicle-monitor.kicad_sym
index 070ad67..c954442 100644
--- a/schema/library/vehicle-monitor.kicad_sym
+++ b/schema/library/vehicle-monitor.kicad_sym
@@ -88,6 +88,266 @@
       )
     )
   )
+  (symbol "Conn_I2C" (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)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Footprint" "" (id 2) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_keywords" "connector" (id 4) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_description" "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)" (id 5) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (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"
+      (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))
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+      (arc (start 0 -2.032) (mid -0.508 -2.54) (end 0 -3.048)
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
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+      (polyline
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+          (xy -0.508 -5.08)
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+        (fill (type none))
+      )
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+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
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+          (xy -0.508 0)
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+      (pin power_in line (at -5.08 2.54 0) (length 3.81)
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+        (number "1" (effects (font (size 1.27 1.27))))
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+        (number "2" (effects (font (size 1.27 1.27))))
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+        (number "3" (effects (font (size 1.27 1.27))))
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+  (symbol "Conn_alim" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
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+      (effects (font (size 1.27 1.27)))
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+      (effects (font (size 1.27 1.27)) hide)
+    )
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+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
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+      (arc (start 0 -2.032) (mid -0.508 -2.54) (end 0 -3.048)
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+      )
+    )
+  )
+  (symbol "Conn_battery" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
+    (property "Reference" "J" (id 0) (at 0 2.54 0)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Value" "Conn_battery" (id 1) (at 0 -5.08 0)
+      (effects (font (size 1.27 1.27)))
+    )
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+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_keywords" "connector" (id 4) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_description" "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)" (id 5) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (symbol "Conn_battery_1_1"
+      (arc (start 0 -2.032) (mid -0.508 -2.54) (end 0 -3.048)
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
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+        (fill (type none))
+      )
+      (arc (start 0 0.508) (mid -0.508 0) (end 0 -0.508)
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
+      )
+      (pin power_out line (at -5.08 0 0) (length 3.81)
+        (name "batt_36V" (effects (font (size 1.27 1.27))))
+        (number "1" (effects (font (size 1.27 1.27))))
+      )
+      (pin power_in line (at -5.08 -2.54 0) (length 3.81)
+        (name "batt_GND" (effects (font (size 1.27 1.27))))
+        (number "2" (effects (font (size 1.27 1.27))))
+      )
+    )
+  )
+  (symbol "Conn_speed_sensor" (pin_names (offset 1.5)) (in_bom yes) (on_board yes)
+    (property "Reference" "J" (id 0) (at 0 2.54 0)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Value" "Conn_speed_sensor" (id 1) (at 0 -5.08 0)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Footprint" "" (id 2) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_keywords" "connector" (id 4) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_description" "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)" (id 5) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (symbol "Conn_speed_sensor_1_1"
+      (arc (start 0 -2.032) (mid -0.508 -2.54) (end 0 -3.048)
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+        (fill (type none))
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+      (arc (start 0 0.508) (mid -0.508 0) (end 0 -0.508)
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+      (pin passive line (at -5.08 -2.54 0) (length 3.81)
+        (name "C2" (effects (font (size 1.27 1.27))))
+        (number "2" (effects (font (size 1.27 1.27))))
+      )
+    )
+  )
   (symbol "NodeMCU_ESP32" (in_bom yes) (on_board yes)
     (property "Reference" "U" (id 0) (at -21.59 21.59 0)
       (effects (font (size 1.27 1.27)))
diff --git a/schema/vehicle-monitor/vehicle-monitor.kicad_sch b/schema/vehicle-monitor/vehicle-monitor.kicad_sch
index aad05a2..b82758d 100644
--- a/schema/vehicle-monitor/vehicle-monitor.kicad_sch
+++ b/schema/vehicle-monitor/vehicle-monitor.kicad_sch
@@ -5,11 +5,530 @@
   (paper "A4")
 
   (lib_symbols
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+      )
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+        (effects (font (size 1.27 1.27)) hide)
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+        (effects (font (size 1.27 1.27)) hide)
+      )
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+        (effects (font (size 1.27 1.27)) hide)
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+      (property "ki_fp_filters" "TO-???* *_Diode_* *SingleDiode* D_*" (id 6) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
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+        (effects (font (size 1.27 1.27)) hide)
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+          (fill (type none))
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       (property "Reference" "J" (id 0) (at 0 5.08 0)
         (effects (font (size 1.27 1.27)))
       )
-      (property "Value" "Conn_HSTS016L" (id 1) (at 0 -7.62 0)
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+        (effects (font (size 1.27 1.27)) hide)
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+      )
+      (property "ki_description" "Connector for HSTS016L hall effect current sensor" (id 5) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_fp_filters" "Connector*:*_1x??_*" (id 6) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
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         (effects (font (size 1.27 1.27)) hide)
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       )
-      (property "ki_description" "Connector for HSTS016L hall effect current sensor" (id 5) (at 0 0 0)
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         (effects (font (size 1.27 1.27)) hide)
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+  (symbol (lib_id "vehicle-monitor:Conn_battery") (at 142.24 71.12 0) (unit 1)
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+    (pin "2" (uuid a45a9fc6-94f1-41b5-92bd-374472649f57))
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+    (pin "2" (uuid 9cc07fe6-52e7-4494-9efb-f758c6f40612))
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     (in_bom yes) (on_board yes)
     (uuid 9b0c1c36-20df-4c06-9ad3-2271ca2f63a2)
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       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "Conn_HSTS016L" (id 1) (at 135.89 43.18 0)
+    (property "Value" "Conn_HSTS016L" (id 1) (at 147.32 53.34 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
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+    (property "Footprint" "" (id 2) (at 142.24 50.8 0)
       (effects (font (size 1.27 1.27)) hide)
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     (pin "1" (uuid f7e70643-aaa3-482e-9261-4bfb450b0915))
@@ -313,10 +1088,25 @@
     (pin "4" (uuid 586cda52-e15c-4dc3-b1b9-9046e3a9fa04))
   )
 
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+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid afca7eb0-1036-4ed8-9797-55c1cd7b5cb5)
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+    (property "Value" "LED" (id 1) (at 51.1175 121.92 0))
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+    (pin "2" (uuid c3303fed-f63d-42df-be5c-9d5f49b1497a))
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   (symbol (lib_id "vehicle-monitor:NodeMCU_ESP32") (at 80.01 85.09 0) (unit 1)
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     (uuid bac5560b-af16-4666-9571-395f111e9db7)
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     (property "Footprint" "" (id 2) (at 67.31 86.36 0)
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@@ -360,16 +1150,130 @@
     (pin "9" (uuid b993e9dc-2262-4c7a-82d2-25b627d983e0))
   )
 
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+    (path "/68d48ad4-88ad-4719-bd22-02147a9c50c3"
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+    (path "/5146355b-d187-42d7-bcfd-5946aeb905a6"
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+      (reference "R1") (unit 1) (value "180K") (footprint "")
+    )
+    (path "/7e7b48e4-998f-4cd0-8159-bed4f4488c89"
+      (reference "R2") (unit 1) (value "12K") (footprint "")
+    )
+    (path "/e2af42b0-451b-49e4-b4fb-fd5011272005"
+      (reference "R3") (unit 1) (value "180") (footprint "")
     )
     (path "/bac5560b-af16-4666-9571-395f111e9db7"
-      (reference "U?") (unit 1) (value "NodeMCU_ESP32") (footprint "")
+      (reference "U1") (unit 1) (value "NodeMCU_ESP32") (footprint "")
     )
   )
 )