(kicad_sch (version 20211123) (generator eeschema)
  (paper "A4")
  (lib_symbols
    (symbol "Amplifier_Operational:TS912" (pin_names (offset 0.127)) (in_bom yes) (on_board yes)
      (property "Reference" "U" (id 0) (at 0 5.08 0))
      (property "Value" "TS912" (id 1) (at 0 -5.08 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "www.st.com/resource/en/datasheet/ts912.pdf" (id 3) (at 0 0 0))
      (property "ki_locked" "" (id 4) (at 0 0 0))
      (property "ki_keywords" "dual opamp" (id 5) (at 0 0 0))
      (property "ki_description" "Dual Rail-to-rail CMOS Operational Amplifier, DIP-8/SOIC-8" (id 6) (at 0 0 0))
      (property "ki_fp_filters" "SOIC*3.9x4.9mm*P1.27mm* DIP*W7.62mm* TO*99* OnSemi*Micro8* TSSOP*3x3mm*P0.65mm* TSSOP*4.4x3mm*P0.65mm* MSOP*3x3mm*P0.65mm* SSOP*3.9x4.9mm*P0.635mm* LFCSP*2x2mm*P0.5mm* *SIP* SOIC*5.3x6.2mm*P1.27mm*" (id 7) (at 0 0 0))
      (symbol "TS912_1_1"
        (polyline
          (pts
            (xy -5.08 5.08)
            (xy 5.08 0)
            (xy -5.08 -5.08)
            (xy -5.08 5.08)
          )
          (fill (type background))
        )
        (pin output line (at 7.62 0 180) (length 2.54)
          (name "~")
          (number "1")
        )
        (pin input line (at -7.62 -2.54 0) (length 2.54)
          (name "-")
          (number "2")
        )
        (pin input line (at -7.62 2.54 0) (length 2.54)
          (name "+")
          (number "3")
        )
      )
      (symbol "TS912_2_1"
        (polyline
          (pts
            (xy -5.08 5.08)
            (xy 5.08 0)
            (xy -5.08 -5.08)
            (xy -5.08 5.08)
          )
          (fill (type background))
        )
        (pin input line (at -7.62 2.54 0) (length 2.54)
          (name "+")
          (number "5")
        )
        (pin input line (at -7.62 -2.54 0) (length 2.54)
          (name "-")
          (number "6")
        )
        (pin output line (at 7.62 0 180) (length 2.54)
          (name "~")
          (number "7")
        )
      )
      (symbol "TS912_3_1"
        (pin power_in line (at -2.54 -7.62 90) (length 3.81)
          (name "V-")
          (number "4")
        )
        (pin power_in line (at -2.54 7.62 270) (length 3.81)
          (name "V+")
          (number "8")
        )
      )
    )
    (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))
      (property "Value" "R_Potentiometer" (id 1) (at -2.54 0 90))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "resistor variable" (id 4) (at 0 0 0))
      (property "ki_description" "Potentiometer" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "Potentiometer*" (id 6) (at 0 0 0))
      (symbol "R_Potentiometer_0_1"
        (polyline
          (pts
            (xy 2.54 0)
            (xy 1.524 0)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 1.143 0)
            (xy 2.286 0.508)
            (xy 2.286 -0.508)
            (xy 1.143 0)
          )
          (fill (type outline))
        )
        (rectangle (start 1.016 2.54) (end -1.016 -2.54)
          (fill (type none))
        )
      )
      (symbol "R_Potentiometer_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "1")
          (number "1")
        )
        (pin passive line (at 3.81 0 180) (length 1.27)
          (name "2")
          (number "2")
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "3")
          (number "3")
        )
      )
    )
    (symbol "Device:Thermistor_NTC" (pin_numbers hide) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "TH" (id 0) (at -4.445 0 90))
      (property "Value" "Thermistor_NTC" (id 1) (at 3.175 0 90))
      (property "Footprint" "" (id 2) (at 0 1.27 0))
      (property "Datasheet" "~" (id 3) (at 0 1.27 0))
      (property "ki_keywords" "thermistor NTC resistor sensor RTD" (id 4) (at 0 0 0))
      (property "ki_description" "Temperature dependent resistor, negative temperature coefficient" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "*NTC* *Thermistor* PIN?ARRAY* bornier* *Terminal?Block* R_*" (id 6) (at 0 0 0))
      (symbol "Thermistor_NTC_0_1"
        (arc (start -3.048 2.159) (mid -3.0495 2.3143) (end -3.175 2.413)
          (fill (type none))
        )
        (arc (start -3.048 2.159) (mid -2.9736 1.9794) (end -2.794 1.905)
          (fill (type none))
        )
        (arc (start -3.048 2.794) (mid -2.9736 2.6144) (end -2.794 2.54)
          (fill (type none))
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        (arc (start -2.794 1.905) (mid -2.6144 1.9794) (end -2.54 2.159)
          (fill (type none))
        )
        (arc (start -2.794 2.54) (mid -2.4393 2.5587) (end -2.159 2.794)
          (fill (type none))
        )
        (arc (start -2.794 3.048) (mid -2.9736 2.9736) (end -3.048 2.794)
          (fill (type none))
        )
        (arc (start -2.54 2.794) (mid -2.6144 2.9736) (end -2.794 3.048)
          (fill (type none))
        )
        (rectangle (start -1.016 2.54) (end 1.016 -2.54)
          (fill (type none))
        )
        (polyline
          (pts
            (xy -2.54 2.159)
            (xy -2.54 2.794)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.778 2.54)
            (xy -1.778 1.524)
            (xy 1.778 -1.524)
            (xy 1.778 -2.54)
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          (fill (type none))
        )
        (polyline
          (pts
            (xy -2.54 -3.683)
            (xy -2.54 -1.397)
            (xy -2.794 -2.159)
            (xy -2.286 -2.159)
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          (fill (type outline))
        )
        (polyline
          (pts
            (xy -1.778 -1.397)
            (xy -1.778 -3.683)
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            (xy -1.778 -3.683)
            (xy -1.778 -3.429)
          )
          (fill (type outline))
        )
      )
      (symbol "Thermistor_NTC_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "~")
          (number "1")
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "~")
          (number "2")
        )
      )
    )
    (symbol "power:+12V" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -3.81 0))
      (property "Value" "+12V" (id 1) (at 0 3.556 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "" (id 3) (at 0 0 0))
      (property "ki_keywords" "global power" (id 4) (at 0 0 0))
      (property "ki_description" "Power symbol creates a global label with name \"+12V\"" (id 5) (at 0 0 0))
      (symbol "+12V_0_1"
        (polyline
          (pts
            (xy -0.762 1.27)
            (xy 0 2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 0)
            (xy 0 2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 2.54)
            (xy 0.762 1.27)
          )
          (fill (type none))
        )
      )
      (symbol "+12V_1_1"
        (pin power_in line (at 0 0 90) (length 0) hide
          (name "+12V")
          (number "1")
        )
      )
    )
    (symbol "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -6.35 0))
      (property "Value" "GND" (id 1) (at 0 -3.81 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "" (id 3) (at 0 0 0))
      (property "ki_keywords" "global power" (id 4) (at 0 0 0))
      (property "ki_description" "Power symbol creates a global label with name \"GND\" , ground" (id 5) (at 0 0 0))
      (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)
          )
          (fill (type none))
        )
      )
      (symbol "GND_1_1"
        (pin power_in line (at 0 0 270) (length 0) hide
          (name "GND")
          (number "1")
        )
      )
    )
  )
  (junction (at 43.18 83.82) (diameter 0) (color 0 0 0 0))
  (junction (at 91.44 66.04) (diameter 0) (color 0 0 0 0))
  (junction (at 72.39 68.58) (diameter 0) (color 0 0 0 0))
  (junction (at 43.18 46.99) (diameter 0) (color 0 0 0 0))
  (junction (at 49.53 63.5) (diameter 0) (color 0 0 0 0))
  (no_connect (at 68.58 78.74))
  (wire (pts (xy 43.18 41.91) (xy 43.18 46.99)))
  (wire (pts (xy 49.53 63.5) (xy 73.66 63.5)))
  (wire (pts (xy 49.53 46.99) (xy 43.18 46.99)))
  (wire (pts (xy 91.44 78.74) (xy 91.44 66.04)))
  (wire (pts (xy 49.53 81.28) (xy 49.53 83.82)))
  (wire (pts (xy 49.53 57.15) (xy 49.53 63.5)))
  (wire (pts (xy 43.18 83.82) (xy 43.18 88.9)))
  (wire (pts (xy 35.56 83.82) (xy 35.56 72.39)))
  (wire (pts (xy 35.56 46.99) (xy 35.56 64.77)))
  (wire (pts (xy 91.44 66.04) (xy 100.33 66.04)))
  (wire (pts (xy 88.9 66.04) (xy 91.44 66.04)))
  (wire (pts (xy 39.37 68.58) (xy 72.39 68.58)))
  (wire (pts (xy 43.18 83.82) (xy 35.56 83.82)))
  (wire (pts (xy 49.53 83.82) (xy 43.18 83.82)))
  (wire (pts (xy 49.53 49.53) (xy 49.53 46.99)))
  (wire (pts (xy 43.18 46.99) (xy 35.56 46.99)))
  (wire (pts (xy 72.39 68.58) (xy 72.39 74.93)))
  (wire (pts (xy 72.39 68.58) (xy 73.66 68.58)))
  (wire (pts (xy 49.53 63.5) (xy 49.53 73.66)))
  (wire (pts (xy 76.2 78.74) (xy 91.44 78.74)))
  (text "Out" (at 102.87 67.31 0))
  (symbol (lib_id "Amplifier_Operational:TS912") (at 81.28 66.04 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "U1" (id 0) (at 81.28 55.88 0))
    (property "Value" "TS912" (id 1) (at 81.28 58.42 0))
    (property "Footprint" "" (id 2) (at 81.28 66.04 0))
    (property "Datasheet" "www.st.com/resource/en/datasheet/ts912.pdf" (id 3) (at 81.28 66.04 0))
    (pin "1")
    (pin "2")
    (pin "3")
    (pin "5")
    (pin "6")
    (pin "7")
    (pin "4")
    (pin "8")
  )
  (symbol (lib_id "power:GND") (at 43.18 88.9 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "#PWR02" (id 0) (at 43.18 95.25 0))
    (property "Value" "GND" (id 1) (at 43.18 93.98 0))
    (property "Footprint" "" (id 2) (at 43.18 88.9 0))
    (property "Datasheet" "" (id 3) (at 43.18 88.9 0))
    (pin "1")
  )
  (symbol (lib_id "Device:R_Potentiometer") (at 35.56 68.58 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "RV1" (id 0) (at 33.02 67.3099 0))
    (property "Value" "10k" (id 1) (at 33.02 69.8499 0))
    (property "Footprint" "" (id 2) (at 35.56 68.58 0))
    (property "Datasheet" "~" (id 3) (at 35.56 68.58 0))
    (pin "1")
    (pin "2")
    (pin "3")
  )
  (symbol (lib_id "power:+12V") (at 43.18 41.91 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "#PWR01" (id 0) (at 43.18 45.72 0))
    (property "Value" "+12V" (id 1) (at 43.18 36.83 0))
    (property "Footprint" "" (id 2) (at 43.18 41.91 0))
    (property "Datasheet" "" (id 3) (at 43.18 41.91 0))
    (pin "1")
  )
  (symbol (lib_id "Device:R_Potentiometer") (at 72.39 78.74 90) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "RV2" (id 0) (at 72.39 82.55 90))
    (property "Value" "100k" (id 1) (at 72.39 85.09 90))
    (property "Footprint" "" (id 2) (at 72.39 78.74 0))
    (property "Datasheet" "~" (id 3) (at 72.39 78.74 0))
    (pin "1")
    (pin "2")
    (pin "3")
  )
  (symbol (lib_id "Device:Thermistor_NTC") (at 49.53 77.47 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "TH2" (id 0) (at 52.07 76.5174 0))
    (property "Value" "NTC 10k" (id 1) (at 52.07 79.0574 0))
    (property "Footprint" "" (id 2) (at 49.53 76.2 0))
    (property "Datasheet" "~" (id 3) (at 49.53 76.2 0))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "Device:Thermistor_NTC") (at 49.53 53.34 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "TH1" (id 0) (at 52.07 52.3874 0))
    (property "Value" "NTC 10k" (id 1) (at 52.07 54.9274 0))
    (property "Footprint" "" (id 2) (at 49.53 52.07 0))
    (property "Datasheet" "~" (id 3) (at 49.53 52.07 0))
    (pin "1")
    (pin "2")
  )
  (sheet_instances
    (path (page "1"))
  )
  (symbol_instances
    (path
      (reference "#PWR01") (unit 1) (value "+12V") (footprint "")
    )
    (path
      (reference "#PWR02") (unit 1) (value "GND") (footprint "")
    )
    (path
      (reference "RV1") (unit 1) (value "10k") (footprint "")
    )
    (path
      (reference "RV2") (unit 1) (value "100k") (footprint "")
    )
    (path
      (reference "TH1") (unit 1) (value "NTC 10k") (footprint "")
    )
    (path
      (reference "TH2") (unit 1) (value "NTC 10k") (footprint "")
    )
    (path
      (reference "U1") (unit 1) (value "TS912") (footprint "")
    )
  )
)
