diff --git a/.gitignore b/.gitignore
index aca33c6..de1174e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
 /schema/vehicle-monitor/vehicle-monitor.bak
+/schema/library/*.bak
+/schema/vehicle-monitor/_autosave-vehicle-monitor.sch
+/schema/vehicle-monitor/vehicle-monitor-backups
diff --git a/schema/library/vehicle-monitor.kicad_sym b/schema/library/vehicle-monitor.kicad_sym
new file mode 100644
index 0000000..dce9ebf
--- /dev/null
+++ b/schema/library/vehicle-monitor.kicad_sym
@@ -0,0 +1,91 @@
+(kicad_symbol_lib (version 20211014) (generator kicad_symbol_editor)
+  (symbol "Conn_HSTS016L" (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_HSTS016L" (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 hall current sensor" (id 4) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (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)
+    )
+    (symbol "Conn_HSTS016L_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))
+      )
+      (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))
+      )
+      (polyline
+        (pts
+          (xy -1.27 -5.08)
+          (xy -0.508 -5.08)
+        )
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
+      )
+      (polyline
+        (pts
+          (xy -1.27 -2.54)
+          (xy -0.508 -2.54)
+        )
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
+      )
+      (polyline
+        (pts
+          (xy -1.27 0)
+          (xy -0.508 0)
+        )
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
+      )
+      (polyline
+        (pts
+          (xy -1.27 2.54)
+          (xy -0.508 2.54)
+        )
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (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))
+      )
+      (arc (start 0 3.048) (mid -0.508 2.54) (end 0 2.032)
+        (stroke (width 0.1524) (type default) (color 0 0 0 0))
+        (fill (type none))
+      )
+      (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 "5V" (effects (font (size 1.27 1.27))))
+        (number "2" (effects (font (size 1.27 1.27))))
+      )
+      (pin output line (at -5.08 -2.54 0) (length 3.81)
+        (name "Vout" (effects (font (size 1.27 1.27))))
+        (number "3" (effects (font (size 1.27 1.27))))
+      )
+      (pin output line (at -5.08 -5.08 0) (length 3.81)
+        (name "Vref" (effects (font (size 1.27 1.27))))
+        (number "4" (effects (font (size 1.27 1.27))))
+      )
+    )
+  )
+)
diff --git a/schema/vehicle-monitor/sym-lib-table b/schema/vehicle-monitor/sym-lib-table
index 5ffff39..ab21107 100644
--- a/schema/vehicle-monitor/sym-lib-table
+++ b/schema/vehicle-monitor/sym-lib-table
@@ -1,3 +1,3 @@
-(sym_lib_table
-  (lib (name vehicle-monitor)(type Legacy)(uri /home/youen/dev_linux/vehicle-monitor/schema/library/vehicle-monitor.lib)(options "")(descr ""))
-)
+(sym_lib_table
+  (lib (name "vehicle-monitor")(type "KiCad")(uri "${KIPRJMOD}/../library/vehicle-monitor.kicad_sym")(options "")(descr ""))
+)
diff --git a/schema/vehicle-monitor/vehicle-monitor.kicad_prl b/schema/vehicle-monitor/vehicle-monitor.kicad_prl
new file mode 100644
index 0000000..0a281b9
--- /dev/null
+++ b/schema/vehicle-monitor/vehicle-monitor.kicad_prl
@@ -0,0 +1,75 @@
+{
+  "board": {
+    "active_layer": 0,
+    "active_layer_preset": "",
+    "auto_track_width": true,
+    "hidden_nets": [],
+    "high_contrast_mode": 0,
+    "net_color_mode": 1,
+    "opacity": {
+      "pads": 1.0,
+      "tracks": 1.0,
+      "vias": 1.0,
+      "zones": 0.6
+    },
+    "ratsnest_display_mode": 0,
+    "selection_filter": {
+      "dimensions": true,
+      "footprints": true,
+      "graphics": true,
+      "keepouts": true,
+      "lockedItems": true,
+      "otherItems": true,
+      "pads": true,
+      "text": true,
+      "tracks": true,
+      "vias": true,
+      "zones": true
+    },
+    "visible_items": [
+      0,
+      1,
+      2,
+      3,
+      4,
+      5,
+      8,
+      9,
+      10,
+      11,
+      12,
+      13,
+      14,
+      15,
+      16,
+      17,
+      18,
+      19,
+      20,
+      21,
+      22,
+      23,
+      24,
+      25,
+      26,
+      27,
+      28,
+      29,
+      30,
+      32,
+      33,
+      34,
+      35,
+      36
+    ],
+    "visible_layers": "fffffff_ffffffff",
+    "zone_display_mode": 0
+  },
+  "meta": {
+    "filename": "vehicle-monitor.kicad_prl",
+    "version": 3
+  },
+  "project": {
+    "files": []
+  }
+}
diff --git a/schema/vehicle-monitor/vehicle-monitor.kicad_pro b/schema/vehicle-monitor/vehicle-monitor.kicad_pro
new file mode 100644
index 0000000..0fa619e
--- /dev/null
+++ b/schema/vehicle-monitor/vehicle-monitor.kicad_pro
@@ -0,0 +1,325 @@
+{
+  "board": {
+    "design_settings": {
+      "defaults": {
+        "board_outline_line_width": 0.1,
+        "copper_line_width": 0.2,
+        "copper_text_size_h": 1.5,
+        "copper_text_size_v": 1.5,
+        "copper_text_thickness": 0.3,
+        "other_line_width": 0.15,
+        "silk_line_width": 0.15,
+        "silk_text_size_h": 1.0,
+        "silk_text_size_v": 1.0,
+        "silk_text_thickness": 0.15
+      },
+      "diff_pair_dimensions": [],
+      "drc_exclusions": [],
+      "rules": {
+        "solder_mask_clearance": 0.0,
+        "solder_mask_min_width": 0.0
+      },
+      "track_widths": [],
+      "via_dimensions": []
+    },
+    "layer_presets": []
+  },
+  "boards": [],
+  "cvpcb": {
+    "equivalence_files": []
+  },
+  "erc": {
+    "erc_exclusions": [],
+    "meta": {
+      "version": 0
+    },
+    "pin_map": [
+      [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        2
+      ],
+      [
+        0,
+        2,
+        0,
+        1,
+        0,
+        0,
+        1,
+        0,
+        2,
+        2,
+        2,
+        2
+      ],
+      [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        1,
+        0,
+        1,
+        2
+      ],
+      [
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        2,
+        1,
+        1,
+        2
+      ],
+      [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        2
+      ],
+      [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        2
+      ],
+      [
+        1,
+        1,
+        1,
+        1,
+        1,
+        0,
+        1,
+        1,
+        1,
+        1,
+        1,
+        2
+      ],
+      [
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        2
+      ],
+      [
+        0,
+        2,
+        1,
+        2,
+        0,
+        0,
+        1,
+        0,
+        2,
+        2,
+        2,
+        2
+      ],
+      [
+        0,
+        2,
+        0,
+        1,
+        0,
+        0,
+        1,
+        0,
+        2,
+        0,
+        0,
+        2
+      ],
+      [
+        0,
+        2,
+        1,
+        1,
+        0,
+        0,
+        1,
+        0,
+        2,
+        0,
+        0,
+        2
+      ],
+      [
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2,
+        2
+      ]
+    ],
+    "rule_severities": {
+      "bus_definition_conflict": "error",
+      "bus_entry_needed": "error",
+      "bus_label_syntax": "error",
+      "bus_to_bus_conflict": "error",
+      "bus_to_net_conflict": "error",
+      "different_unit_footprint": "error",
+      "different_unit_net": "error",
+      "duplicate_reference": "error",
+      "duplicate_sheet_names": "error",
+      "extra_units": "error",
+      "global_label_dangling": "warning",
+      "hier_label_mismatch": "error",
+      "label_dangling": "error",
+      "lib_symbol_issues": "warning",
+      "multiple_net_names": "warning",
+      "net_not_bus_member": "warning",
+      "no_connect_connected": "warning",
+      "no_connect_dangling": "warning",
+      "pin_not_connected": "error",
+      "pin_not_driven": "error",
+      "pin_to_pin": "warning",
+      "power_pin_not_driven": "error",
+      "similar_labels": "warning",
+      "unannotated": "error",
+      "unit_value_mismatch": "error",
+      "unresolved_variable": "error",
+      "wire_dangling": "error"
+    }
+  },
+  "libraries": {
+    "pinned_footprint_libs": [],
+    "pinned_symbol_libs": []
+  },
+  "meta": {
+    "filename": "vehicle-monitor.kicad_pro",
+    "version": 1
+  },
+  "net_settings": {
+    "classes": [
+      {
+        "bus_width": 12.0,
+        "clearance": 0.2,
+        "diff_pair_gap": 0.25,
+        "diff_pair_via_gap": 0.25,
+        "diff_pair_width": 0.2,
+        "line_style": 0,
+        "microvia_diameter": 0.3,
+        "microvia_drill": 0.1,
+        "name": "Default",
+        "pcb_color": "rgba(0, 0, 0, 0.000)",
+        "schematic_color": "rgba(0, 0, 0, 0.000)",
+        "track_width": 0.25,
+        "via_diameter": 0.8,
+        "via_drill": 0.4,
+        "wire_width": 6.0
+      }
+    ],
+    "meta": {
+      "version": 2
+    },
+    "net_colors": null
+  },
+  "pcbnew": {
+    "last_paths": {
+      "gencad": "",
+      "idf": "",
+      "netlist": "",
+      "specctra_dsn": "",
+      "step": "",
+      "vrml": ""
+    },
+    "page_layout_descr_file": ""
+  },
+  "schematic": {
+    "annotate_start_num": 0,
+    "drawing": {
+      "default_line_thickness": 6.0,
+      "default_text_size": 50.0,
+      "field_names": [],
+      "intersheets_ref_own_page": false,
+      "intersheets_ref_prefix": "",
+      "intersheets_ref_short": false,
+      "intersheets_ref_show": false,
+      "intersheets_ref_suffix": "",
+      "junction_size_choice": 3,
+      "label_size_ratio": 0.25,
+      "pin_symbol_size": 0.0,
+      "text_offset_ratio": 0.08
+    },
+    "legacy_lib_dir": "",
+    "legacy_lib_list": [],
+    "meta": {
+      "version": 1
+    },
+    "net_format_name": "",
+    "ngspice": {
+      "fix_include_paths": true,
+      "fix_passive_vals": false,
+      "meta": {
+        "version": 0
+      },
+      "model_mode": 0,
+      "workbook_filename": ""
+    },
+    "page_layout_descr_file": "",
+    "plot_directory": "",
+    "spice_adjust_passive_values": false,
+    "spice_external_command": "spice \"%I\"",
+    "subpart_first_id": 65,
+    "subpart_id_separator": 0
+  },
+  "sheets": [
+    [
+      "2f3deced-880d-4075-a81b-95c62da5b94d",
+      ""
+    ]
+  ],
+  "text_variables": {}
+}
diff --git a/schema/vehicle-monitor/vehicle-monitor.kicad_sch b/schema/vehicle-monitor/vehicle-monitor.kicad_sch
new file mode 100644
index 0000000..10d8482
--- /dev/null
+++ b/schema/vehicle-monitor/vehicle-monitor.kicad_sch
@@ -0,0 +1,372 @@
+(kicad_sch (version 20211123) (generator eeschema)
+
+  (uuid 2f3deced-880d-4075-a81b-95c62da5b94d)
+
+  (paper "A4")
+
+  (lib_symbols
+    (symbol "RF_Module:ESP32-WROOM-32" (in_bom yes) (on_board yes)
+      (property "Reference" "U" (id 0) (at -12.7 34.29 0)
+        (effects (font (size 1.27 1.27)) (justify left))
+      )
+      (property "Value" "ESP32-WROOM-32" (id 1) (at 1.27 34.29 0)
+        (effects (font (size 1.27 1.27)) (justify left))
+      )
+      (property "Footprint" "RF_Module:ESP32-WROOM-32" (id 2) (at 0 -38.1 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Datasheet" "https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf" (id 3) (at -7.62 1.27 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_keywords" "RF Radio BT ESP ESP32 Espressif onboard PCB antenna" (id 4) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "RF Module, ESP32-D0WDQ6 SoC, Wi-Fi 802.11b/g/n, Bluetooth, BLE, 32-bit, 2.7-3.6V, onboard antenna, SMD" (id 5) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_fp_filters" "ESP32?WROOM?32*" (id 6) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "ESP32-WROOM-32_0_1"
+        (rectangle (start -12.7 33.02) (end 12.7 -33.02)
+          (stroke (width 0.254) (type default) (color 0 0 0 0))
+          (fill (type background))
+        )
+      )
+      (symbol "ESP32-WROOM-32_1_1"
+        (pin power_in line (at 0 -35.56 90) (length 2.54)
+          (name "GND" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 -12.7 180) (length 2.54)
+          (name "IO25" (effects (font (size 1.27 1.27))))
+          (number "10" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 -15.24 180) (length 2.54)
+          (name "IO26" (effects (font (size 1.27 1.27))))
+          (number "11" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 -17.78 180) (length 2.54)
+          (name "IO27" (effects (font (size 1.27 1.27))))
+          (number "12" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 10.16 180) (length 2.54)
+          (name "IO14" (effects (font (size 1.27 1.27))))
+          (number "13" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 15.24 180) (length 2.54)
+          (name "IO12" (effects (font (size 1.27 1.27))))
+          (number "14" (effects (font (size 1.27 1.27))))
+        )
+        (pin passive line (at 0 -35.56 90) (length 2.54) hide
+          (name "GND" (effects (font (size 1.27 1.27))))
+          (number "15" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 12.7 180) (length 2.54)
+          (name "IO13" (effects (font (size 1.27 1.27))))
+          (number "16" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 -5.08 0) (length 2.54)
+          (name "SHD/SD2" (effects (font (size 1.27 1.27))))
+          (number "17" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 -7.62 0) (length 2.54)
+          (name "SWP/SD3" (effects (font (size 1.27 1.27))))
+          (number "18" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 -12.7 0) (length 2.54)
+          (name "SCS/CMD" (effects (font (size 1.27 1.27))))
+          (number "19" (effects (font (size 1.27 1.27))))
+        )
+        (pin power_in line (at 0 35.56 270) (length 2.54)
+          (name "VDD" (effects (font (size 1.27 1.27))))
+          (number "2" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 -10.16 0) (length 2.54)
+          (name "SCK/CLK" (effects (font (size 1.27 1.27))))
+          (number "20" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 0 0) (length 2.54)
+          (name "SDO/SD0" (effects (font (size 1.27 1.27))))
+          (number "21" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at -15.24 -2.54 0) (length 2.54)
+          (name "SDI/SD1" (effects (font (size 1.27 1.27))))
+          (number "22" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 7.62 180) (length 2.54)
+          (name "IO15" (effects (font (size 1.27 1.27))))
+          (number "23" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 25.4 180) (length 2.54)
+          (name "IO2" (effects (font (size 1.27 1.27))))
+          (number "24" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 30.48 180) (length 2.54)
+          (name "IO0" (effects (font (size 1.27 1.27))))
+          (number "25" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 20.32 180) (length 2.54)
+          (name "IO4" (effects (font (size 1.27 1.27))))
+          (number "26" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 5.08 180) (length 2.54)
+          (name "IO16" (effects (font (size 1.27 1.27))))
+          (number "27" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 2.54 180) (length 2.54)
+          (name "IO17" (effects (font (size 1.27 1.27))))
+          (number "28" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 17.78 180) (length 2.54)
+          (name "IO5" (effects (font (size 1.27 1.27))))
+          (number "29" (effects (font (size 1.27 1.27))))
+        )
+        (pin input line (at -15.24 30.48 0) (length 2.54)
+          (name "EN" (effects (font (size 1.27 1.27))))
+          (number "3" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 0 180) (length 2.54)
+          (name "IO18" (effects (font (size 1.27 1.27))))
+          (number "30" (effects (font (size 1.27 1.27))))
+        )
+        (pin bidirectional line (at 15.24 -2.54 180) (length 2.54)
+          (name "IO19" (effects (font (size 1.27 1.27))))
+          (number "31" (effects (font (size 1.27 1.27))))
+        )
+        (pin no_connect line (at -12.7 -27.94 0) (length 2.54) hide
+          (name "NC" (effects (font (size 1.27 1.27))))
+          (number "32" (effects (font (size 1.27 1.27))))
+        )
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