(kicad_sch (version 20211123) (generator eeschema)

  (uuid 07bc3ee1-155b-41e8-bb7c-f61c323174e0)

  (paper "A4")

  (lib_symbols
    (symbol "Device:R" (pin_numbers hide) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "R" (id 0) (at 2.032 0 90)
        (effects (font (size 1.27 1.27)))
      )
      (property "Value" "R" (id 1) (at 0 0 90)
        (effects (font (size 1.27 1.27)))
      )
      (property "Footprint" "" (id 2) (at -1.778 0 90)
        (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" "R res resistor" (id 4) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_description" "Resistor" (id 5) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_fp_filters" "R_*" (id 6) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (symbol "R_0_1"
        (rectangle (start -1.016 -2.54) (end 1.016 2.54)
          (stroke (width 0.254) (type default) (color 0 0 0 0))
          (fill (type none))
        )
      )
      (symbol "R_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "~" (effects (font (size 1.27 1.27))))
          (number "1" (effects (font (size 1.27 1.27))))
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "~" (effects (font (size 1.27 1.27))))
          (number "2" (effects (font (size 1.27 1.27))))
        )
      )
    )
    (symbol "Device:R_Potentiometer" (pin_names (offset 1.016) hide) (in_bom yes) (on_board yes)
      (property "Reference" "RV" (id 0) (at -4.445 0 90)
        (effects (font (size 1.27 1.27)))
      )
      (property "Value" "R_Potentiometer" (id 1) (at -2.54 0 90)
        (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" "resistor variable" (id 4) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_description" "Potentiometer" (id 5) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_fp_filters" "Potentiometer*" (id 6) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (symbol "R_Potentiometer_0_1"
        (polyline
          (pts
            (xy 2.54 0)
            (xy 1.524 0)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
        (polyline
          (pts
            (xy 1.143 0)
            (xy 2.286 0.508)
            (xy 2.286 -0.508)
            (xy 1.143 0)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type outline))
        )
        (rectangle (start 1.016 2.54) (end -1.016 -2.54)
          (stroke (width 0.254) (type default) (color 0 0 0 0))
          (fill (type none))
        )
      )
      (symbol "R_Potentiometer_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "1" (effects (font (size 1.27 1.27))))
          (number "1" (effects (font (size 1.27 1.27))))
        )
        (pin passive line (at 3.81 0 180) (length 1.27)
          (name "2" (effects (font (size 1.27 1.27))))
          (number "2" (effects (font (size 1.27 1.27))))
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "3" (effects (font (size 1.27 1.27))))
          (number "3" (effects (font (size 1.27 1.27))))
        )
      )
    )
    (symbol "power:+3V3" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -3.81 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "Value" "+3V3" (id 1) (at 0 3.556 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" "power-flag" (id 4) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_description" "Power symbol creates a global label with name \"+3V3\"" (id 5) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (symbol "+3V3_0_1"
        (polyline
          (pts
            (xy -0.762 1.27)
            (xy 0 2.54)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 0)
            (xy 0 2.54)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 2.54)
            (xy 0.762 1.27)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
      )
      (symbol "+3V3_1_1"
        (pin power_in line (at 0 0 90) (length 0) hide
          (name "+3V3" (effects (font (size 1.27 1.27))))
          (number "1" (effects (font (size 1.27 1.27))))
        )
      )
    )
    (symbol "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -6.35 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "Value" "GND" (id 1) (at 0 -3.81 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" "power-flag" (id 4) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_description" "Power symbol creates a global label with name \"GND\" , ground" (id 5) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (symbol "GND_0_1"
        (polyline
          (pts
            (xy 0 0)
            (xy 0 -1.27)
            (xy 1.27 -1.27)
            (xy 0 -2.54)
            (xy -1.27 -1.27)
            (xy 0 -1.27)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
      )
      (symbol "GND_1_1"
        (pin power_in line (at 0 0 270) (length 0) hide
          (name "GND" (effects (font (size 1.27 1.27))))
          (number "1" (effects (font (size 1.27 1.27))))
        )
      )
    )
    (symbol "power:VBUS" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -3.81 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "Value" "VBUS" (id 1) (at 0 3.81 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" "power-flag" (id 4) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (property "ki_description" "Power symbol creates a global label with name \"VBUS\"" (id 5) (at 0 0 0)
        (effects (font (size 1.27 1.27)) hide)
      )
      (symbol "VBUS_0_1"
        (polyline
          (pts
            (xy -0.762 1.27)
            (xy 0 2.54)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 0)
            (xy 0 2.54)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 2.54)
            (xy 0.762 1.27)
          )
          (stroke (width 0) (type default) (color 0 0 0 0))
          (fill (type none))
        )
      )
      (symbol "VBUS_1_1"
        (pin power_in line (at 0 0 90) (length 0) hide
          (name "VBUS" (effects (font (size 1.27 1.27))))
          (number "1" (effects (font (size 1.27 1.27))))
        )
      )
    )
  )

  (junction (at 160.02 95.25) (diameter 0) (color 0 0 0 0)
    (uuid 76ab51e7-5edb-4045-85a9-a4f7d7d7dc2b)
  )
  (junction (at 160.02 77.47) (diameter 0) (color 0 0 0 0)
    (uuid d6dc6e3f-8b46-4b9d-99e7-9ed19556d01a)
  )

  (no_connect (at 154.94 77.47) (uuid b0c5723f-3e32-4297-b270-9ec72d96287f))

  (wire (pts (xy 160.02 95.25) (xy 160.02 100.33))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 2b49d027-0d47-48ba-ad83-8890fbb9e35d)
  )
  (wire (pts (xy 113.03 101.6) (xy 113.03 104.14))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 58a3a21b-7c95-4ce7-857e-232fbcc0f0a0)
  )
  (wire (pts (xy 154.94 77.47) (xy 160.02 77.47))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 60be2ea0-fbaf-495d-8d6b-c27c13f08fdc)
  )
  (wire (pts (xy 113.03 88.9) (xy 113.03 93.98))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 65240d4f-e125-4372-83da-5c707562e5be)
  )
  (wire (pts (xy 116.84 97.79) (xy 121.92 97.79))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 6c57bda6-64a2-4ee1-a554-4ce9ebdeca88)
  )
  (wire (pts (xy 160.02 95.25) (xy 160.02 90.17))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 9a1fc702-bc5d-424e-aa18-98c5907deaa5)
  )
  (wire (pts (xy 168.91 95.25) (xy 160.02 95.25))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid 9fa92332-f3c7-4719-82f5-a337ed385bf0)
  )
  (wire (pts (xy 90.17 62.23) (xy 90.17 67.31))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid aab5cf08-4188-4496-a697-2b8fda2ede77)
  )
  (wire (pts (xy 160.02 77.47) (xy 160.02 82.55))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid b545efbd-4665-495e-a212-a3eda1da410b)
  )
  (wire (pts (xy 90.17 74.93) (xy 90.17 77.47))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid b7f7508d-57e6-4cc1-817e-19a35f56bd9c)
  )
  (wire (pts (xy 93.98 71.12) (xy 99.06 71.12))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid c2b455e8-d6c7-41e6-9d24-deb10cfbe50e)
  )
  (wire (pts (xy 160.02 107.95) (xy 160.02 111.76))
    (stroke (width 0) (type default) (color 0 0 0 0))
    (uuid d2e243ef-188e-40b6-8f69-38990dd6eee5)
  )

  (global_label "ADC2" (shape input) (at 168.91 95.25 0) (fields_autoplaced)
    (effects (font (size 1.27 1.27)) (justify left))
    (uuid 10f300e7-bf46-4c84-931b-4f3b24023baa)
    (property "Intersheet References" "${INTERSHEET_REFS}" (id 0) (at 176.0723 95.1706 0)
      (effects (font (size 1.27 1.27)) (justify left) hide)
    )
  )
  (global_label "ADC0" (shape input) (at 99.06 71.12 0) (fields_autoplaced)
    (effects (font (size 1.27 1.27)) (justify left))
    (uuid 6e296034-164e-4285-ac22-baa3c7e58498)
    (property "Intersheet References" "${INTERSHEET_REFS}" (id 0) (at 106.2223 71.0406 0)
      (effects (font (size 1.27 1.27)) (justify left) hide)
    )
  )
  (global_label "ADC1" (shape input) (at 121.92 97.79 0) (fields_autoplaced)
    (effects (font (size 1.27 1.27)) (justify left))
    (uuid 83a7fe7b-6f96-42c3-bce9-a284fba39ea8)
    (property "Intersheet References" "${INTERSHEET_REFS}" (id 0) (at 129.0823 97.7106 0)
      (effects (font (size 1.27 1.27)) (justify left) hide)
    )
  )

  (symbol (lib_id "power:VBUS") (at 160.02 77.47 0) (unit 1)
    (in_bom yes) (on_board yes)
    (uuid 1f22c7b9-39d1-4db8-81f4-047cb4a599a6)
    (property "Reference" "#PWR0159" (id 0) (at 160.02 81.28 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "VBUS" (id 1) (at 160.401 74.2188 90)
      (effects (font (size 1.27 1.27)) (justify left))
    )
    (property "Footprint" "" (id 2) (at 160.02 77.47 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 160.02 77.47 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid f1a94af9-53f4-4857-ae3a-d0339287b83f))
  )

  (symbol (lib_id "power:GND") (at 160.02 111.76 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid 291be11f-562b-493e-8eb0-e748775eed57)
    (property "Reference" "#PWR0155" (id 0) (at 160.02 118.11 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "GND" (id 1) (at 160.02 116.3225 0))
    (property "Footprint" "" (id 2) (at 160.02 111.76 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 160.02 111.76 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid 68a3ff38-b5cf-4c90-8e8a-3527bff5bc68))
  )

  (symbol (lib_id "Device:R") (at 160.02 104.14 0) (unit 1)
    (in_bom no) (on_board no) (fields_autoplaced)
    (uuid 463c0515-1a8a-44a8-bc1a-ffa1ea094e8f)
    (property "Reference" "R501" (id 0) (at 161.798 103.2315 0)
      (effects (font (size 1.27 1.27)) (justify left))
    )
    (property "Value" "220k" (id 1) (at 161.798 106.0066 0)
      (effects (font (size 1.27 1.27)) (justify left))
    )
    (property "Footprint" "Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder" (id 2) (at 158.242 104.14 90)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "~" (id 3) (at 160.02 104.14 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid 2344ba6e-c29d-4891-b026-2036511bfd08))
    (pin "2" (uuid 855a6fe9-24e7-42a4-97e5-00a9316d1f2c))
  )

  (symbol (lib_id "Device:R_Potentiometer") (at 90.17 71.12 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid 4e12d8ce-76cb-40c5-9326-2c56158c5774)
    (property "Reference" "RV500" (id 0) (at 88.3921 70.2115 0)
      (effects (font (size 1.27 1.27)) (justify right))
    )
    (property "Value" "R_Potentiometer" (id 1) (at 88.3921 72.9866 0)
      (effects (font (size 1.27 1.27)) (justify right))
    )
    (property "Footprint" "Potentiometer_THT:Potentiometer_Bourns_3386F_Vertical" (id 2) (at 90.17 71.12 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "~" (id 3) (at 90.17 71.12 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid 309b09d2-0154-4739-9760-f7e377880acf))
    (pin "2" (uuid 23f769b5-6815-481e-8a32-493cc47bf8ac))
    (pin "3" (uuid cb570920-a0ea-4ee4-9aa9-af8724897e97))
  )

  (symbol (lib_id "Device:R") (at 160.02 86.36 0) (unit 1)
    (in_bom no) (on_board no) (fields_autoplaced)
    (uuid 9790e432-0f97-402e-84b2-73178f4ccd63)
    (property "Reference" "R500" (id 0) (at 161.798 85.4515 0)
      (effects (font (size 1.27 1.27)) (justify left))
    )
    (property "Value" "220k" (id 1) (at 161.798 88.2266 0)
      (effects (font (size 1.27 1.27)) (justify left))
    )
    (property "Footprint" "Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder" (id 2) (at 158.242 86.36 90)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "~" (id 3) (at 160.02 86.36 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid f56feeb6-1559-4e1b-ade1-900e859594c5))
    (pin "2" (uuid 9bbc3942-aba5-467b-a5a3-14d3b10dc7dc))
  )

  (symbol (lib_id "power:GND") (at 113.03 104.14 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid be92caf9-9036-46c7-b93e-cf8b262ffee9)
    (property "Reference" "#PWR0152" (id 0) (at 113.03 110.49 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "GND" (id 1) (at 113.03 108.7025 0))
    (property "Footprint" "" (id 2) (at 113.03 104.14 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 113.03 104.14 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid e804dc43-50ec-43e4-89f8-e2846839d46a))
  )

  (symbol (lib_id "power:+3V3") (at 113.03 88.9 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid cbe2f9d4-f755-49db-aa15-0a96f8beb57d)
    (property "Reference" "#PWR0150" (id 0) (at 113.03 92.71 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "+3V3" (id 1) (at 113.03 85.2955 0))
    (property "Footprint" "" (id 2) (at 113.03 88.9 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 113.03 88.9 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid b319f7cc-1215-4c18-a3fd-0abc01ca982d))
  )

  (symbol (lib_id "power:GND") (at 90.17 77.47 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid ecb38764-37ed-429c-ab1e-ee751cfa9c10)
    (property "Reference" "#PWR0148" (id 0) (at 90.17 83.82 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "GND" (id 1) (at 90.17 82.0325 0))
    (property "Footprint" "" (id 2) (at 90.17 77.47 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 90.17 77.47 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid 493a3b3d-fe3e-446e-821d-dbd6b5d13a66))
  )

  (symbol (lib_id "Device:R_Potentiometer") (at 113.03 97.79 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid f711799c-9636-4105-b15a-2cbd7c24e265)
    (property "Reference" "RV501" (id 0) (at 111.2521 96.8815 0)
      (effects (font (size 1.27 1.27)) (justify right))
    )
    (property "Value" "R_Potentiometer" (id 1) (at 111.2521 99.6566 0)
      (effects (font (size 1.27 1.27)) (justify right))
    )
    (property "Footprint" "Potentiometer_THT:Potentiometer_Bourns_3386F_Vertical" (id 2) (at 113.03 97.79 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "~" (id 3) (at 113.03 97.79 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid c98799fd-8945-464e-aacc-e37da92a8df6))
    (pin "2" (uuid 4ad2c58f-65e9-4259-94d8-9cd6b2043b7f))
    (pin "3" (uuid 3c2a55ae-a659-458e-94f2-86cf7e53997e))
  )

  (symbol (lib_id "power:+3V3") (at 90.17 62.23 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (uuid f73d033f-15a0-4bff-a611-b80e03da0ab0)
    (property "Reference" "#PWR0142" (id 0) (at 90.17 66.04 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Value" "+3V3" (id 1) (at 90.17 58.6255 0))
    (property "Footprint" "" (id 2) (at 90.17 62.23 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (property "Datasheet" "" (id 3) (at 90.17 62.23 0)
      (effects (font (size 1.27 1.27)) hide)
    )
    (pin "1" (uuid 04913acb-49c2-4093-b59d-e2ae7ec3f160))
  )
)