(kicad_sch (version 20230121) (generator eeschema)
  (paper "A4")
  (lib_symbols
    (symbol "Connector:Conn_01x04_Pin" (pin_names (offset 1.016) hide) (in_bom yes) (on_board yes)
      (property "Reference" "J" (at 0 5.08 0))
      (property "Value" "Conn_01x04_Pin" (at 0 -7.62 0))
      (property "Footprint" "" (at 0 0 0))
      (property "Datasheet" "~" (at 0 0 0))
      (property "ki_locked" "" (at 0 0 0))
      (property "ki_keywords" "connector" (at 0 0 0))
      (property "ki_description" "Generic connector, single row, 01x04, script generated" (at 0 0 0))
      (property "ki_fp_filters" "Connector*:*_1x??_*" (at 0 0 0))
      (symbol "Conn_01x04_Pin_1_1"
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          (pts
            (xy 1.27 -5.08)
            (xy 0.8636 -5.08)
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          (fill (type none))
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          (fill (type outline))
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          (fill (type outline))
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          (name "Pin_1")
          (number "1")
        )
        (pin passive line (at 5.08 0 180) (length 3.81)
          (name "Pin_2")
          (number "2")
        )
        (pin passive line (at 5.08 -2.54 180) (length 3.81)
          (name "Pin_3")
          (number "3")
        )
        (pin passive line (at 5.08 -5.08 180) (length 3.81)
          (name "Pin_4")
          (number "4")
        )
      )
    )
    (symbol "Connector:Conn_01x08_Pin" (pin_names (offset 1.016) hide) (in_bom yes) (on_board yes)
      (property "Reference" "J" (at 0 10.16 0))
      (property "Value" "Conn_01x08_Pin" (at 0 -12.7 0))
      (property "Footprint" "" (at 0 0 0))
      (property "Datasheet" "~" (at 0 0 0))
      (property "ki_locked" "" (at 0 0 0))
      (property "ki_keywords" "connector" (at 0 0 0))
      (property "ki_description" "Generic connector, single row, 01x08, script generated" (at 0 0 0))
      (property "ki_fp_filters" "Connector*:*_1x??_*" (at 0 0 0))
      (symbol "Conn_01x08_Pin_1_1"
        (polyline
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            (xy 0.8636 -10.16)
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          (fill (type none))
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        (polyline
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          (fill (type outline))
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          (fill (type outline))
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        (pin passive line (at 5.08 7.62 180) (length 3.81)
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          (number "1")
        )
        (pin passive line (at 5.08 5.08 180) (length 3.81)
          (name "Pin_2")
          (number "2")
        )
        (pin passive line (at 5.08 2.54 180) (length 3.81)
          (name "Pin_3")
          (number "3")
        )
        (pin passive line (at 5.08 0 180) (length 3.81)
          (name "Pin_4")
          (number "4")
        )
        (pin passive line (at 5.08 -2.54 180) (length 3.81)
          (name "Pin_5")
          (number "5")
        )
        (pin passive line (at 5.08 -5.08 180) (length 3.81)
          (name "Pin_6")
          (number "6")
        )
        (pin passive line (at 5.08 -7.62 180) (length 3.81)
          (name "Pin_7")
          (number "7")
        )
        (pin passive line (at 5.08 -10.16 180) (length 3.81)
          (name "Pin_8")
          (number "8")
        )
      )
    )
    (symbol "Connector:Raspberry_Pi_2_3" (pin_names (offset 1.016)) (in_bom yes) (on_board yes)
      (property "Reference" "J" (at -17.78 31.75 0))
      (property "Value" "Raspberry_Pi_2_3" (at 10.16 -31.75 0))
      (property "Footprint" "" (at 0 0 0))
      (property "Datasheet" "https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_3bplus_1p0_reduced.pdf" (at 0 0 0))
      (property "ki_keywords" "raspberrypi gpio" (at 0 0 0))
      (property "ki_description" "expansion header for Raspberry Pi 2 & 3" (at 0 0 0))
      (property "ki_fp_filters" "PinHeader*2x20*P2.54mm*Vertical* PinSocket*2x20*P2.54mm*Vertical*" (at 0 0 0))
      (symbol "Raspberry_Pi_2_3_0_1"
        (rectangle (start -17.78 30.48) (end 17.78 -30.48)
          (fill (type background))
        )
      )
      (symbol "Raspberry_Pi_2_3_1_1"
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          (fill (type none))
        )
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          (fill (type none))
        )
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          (fill (type none))
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          (fill (type none))
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          (fill (type none))
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          (fill (type none))
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        (rectangle (start -16.891 0.254) (end -17.78 -0.254)
          (fill (type none))
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          (fill (type none))
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          (fill (type none))
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          (fill (type none))
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          (fill (type none))
        )
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          (fill (type none))
        )
        (rectangle (start -16.891 20.574) (end -17.78 20.066)
          (fill (type none))
        )
        (rectangle (start -16.891 23.114) (end -17.78 22.606)
          (fill (type none))
        )
        (rectangle (start -10.414 -29.591) (end -9.906 -30.48)
          (fill (type none))
        )
        (rectangle (start -7.874 -29.591) (end -7.366 -30.48)
          (fill (type none))
        )
        (rectangle (start -5.334 -29.591) (end -4.826 -30.48)
          (fill (type none))
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        (rectangle (start -5.334 30.48) (end -4.826 29.591)
          (fill (type none))
        )
        (rectangle (start -2.794 -29.591) (end -2.286 -30.48)
          (fill (type none))
        )
        (rectangle (start -2.794 30.48) (end -2.286 29.591)
          (fill (type none))
        )
        (rectangle (start -0.254 -29.591) (end 0.254 -30.48)
          (fill (type none))
        )
        (rectangle (start 2.286 -29.591) (end 2.794 -30.48)
          (fill (type none))
        )
        (rectangle (start 2.286 30.48) (end 2.794 29.591)
          (fill (type none))
        )
        (rectangle (start 4.826 -29.591) (end 5.334 -30.48)
          (fill (type none))
        )
        (rectangle (start 4.826 30.48) (end 5.334 29.591)
          (fill (type none))
        )
        (rectangle (start 7.366 -29.591) (end 7.874 -30.48)
          (fill (type none))
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        (rectangle (start 17.78 -20.066) (end 16.891 -20.574)
          (fill (type none))
        )
        (rectangle (start 17.78 -17.526) (end 16.891 -18.034)
          (fill (type none))
        )
        (rectangle (start 17.78 -12.446) (end 16.891 -12.954)
          (fill (type none))
        )
        (rectangle (start 17.78 -9.906) (end 16.891 -10.414)
          (fill (type none))
        )
        (rectangle (start 17.78 -7.366) (end 16.891 -7.874)
          (fill (type none))
        )
        (rectangle (start 17.78 -4.826) (end 16.891 -5.334)
          (fill (type none))
        )
        (rectangle (start 17.78 -2.286) (end 16.891 -2.794)
          (fill (type none))
        )
        (rectangle (start 17.78 2.794) (end 16.891 2.286)
          (fill (type none))
        )
        (rectangle (start 17.78 5.334) (end 16.891 4.826)
          (fill (type none))
        )
        (rectangle (start 17.78 7.874) (end 16.891 7.366)
          (fill (type none))
        )
        (rectangle (start 17.78 12.954) (end 16.891 12.446)
          (fill (type none))
        )
        (rectangle (start 17.78 15.494) (end 16.891 14.986)
          (fill (type none))
        )
        (rectangle (start 17.78 20.574) (end 16.891 20.066)
          (fill (type none))
        )
        (rectangle (start 17.78 23.114) (end 16.891 22.606)
          (fill (type none))
        )
        (pin power_in line (at 2.54 33.02 270) (length 2.54)
          (name "3V3")
          (number "1")
        )
        (pin bidirectional line (at -20.32 20.32 0) (length 2.54)
          (name "GPIO15/RXD")
          (number "10")
        )
        (pin bidirectional line (at -20.32 12.7 0) (length 2.54)
          (name "GPIO17")
          (number "11")
        )
        (pin bidirectional line (at -20.32 10.16 0) (length 2.54)
          (name "GPIO18/PWM0")
          (number "12")
        )
        (pin bidirectional line (at -20.32 -17.78 0) (length 2.54)
          (name "GPIO27")
          (number "13")
        )
        (pin power_in line (at -5.08 -33.02 90) (length 2.54)
          (name "GND")
          (number "14")
        )
        (pin bidirectional line (at -20.32 -5.08 0) (length 2.54)
          (name "GPIO22")
          (number "15")
        )
        (pin bidirectional line (at -20.32 -7.62 0) (length 2.54)
          (name "GPIO23")
          (number "16")
        )
        (pin power_in line (at 5.08 33.02 270) (length 2.54)
          (name "3V3")
          (number "17")
        )
        (pin bidirectional line (at -20.32 -10.16 0) (length 2.54)
          (name "GPIO24")
          (number "18")
        )
        (pin bidirectional line (at 20.32 -10.16 180) (length 2.54)
          (name "MOSI0/GPIO10")
          (number "19")
        )
        (pin power_in line (at -5.08 33.02 270) (length 2.54)
          (name "5V")
          (number "2")
        )
        (pin power_in line (at -2.54 -33.02 90) (length 2.54)
          (name "GND")
          (number "20")
        )
        (pin bidirectional line (at 20.32 -7.62 180) (length 2.54)
          (name "MISO0/GPIO9")
          (number "21")
        )
        (pin bidirectional line (at -20.32 -12.7 0) (length 2.54)
          (name "GPIO25")
          (number "22")
        )
        (pin bidirectional line (at 20.32 -12.7 180) (length 2.54)
          (name "SCLK0/GPIO11")
          (number "23")
        )
        (pin bidirectional line (at 20.32 -5.08 180) (length 2.54)
          (name "~{CE0}/GPIO8")
          (number "24")
        )
        (pin power_in line (at 0 -33.02 90) (length 2.54)
          (name "GND")
          (number "25")
        )
        (pin bidirectional line (at 20.32 -2.54 180) (length 2.54)
          (name "~{CE1}/GPIO7")
          (number "26")
        )
        (pin bidirectional line (at 20.32 22.86 180) (length 2.54)
          (name "ID_SD/GPIO0")
          (number "27")
        )
        (pin bidirectional line (at 20.32 20.32 180) (length 2.54)
          (name "ID_SC/GPIO1")
          (number "28")
        )
        (pin bidirectional line (at 20.32 5.08 180) (length 2.54)
          (name "GCLK1/GPIO5")
          (number "29")
        )
        (pin bidirectional line (at 20.32 15.24 180) (length 2.54)
          (name "SDA/GPIO2")
          (number "3")
        )
        (pin power_in line (at 2.54 -33.02 90) (length 2.54)
          (name "GND")
          (number "30")
        )
        (pin bidirectional line (at 20.32 2.54 180) (length 2.54)
          (name "GCLK2/GPIO6")
          (number "31")
        )
        (pin bidirectional line (at 20.32 -17.78 180) (length 2.54)
          (name "PWM0/GPIO12")
          (number "32")
        )
        (pin bidirectional line (at 20.32 -20.32 180) (length 2.54)
          (name "PWM1/GPIO13")
          (number "33")
        )
        (pin power_in line (at 5.08 -33.02 90) (length 2.54)
          (name "GND")
          (number "34")
        )
        (pin bidirectional line (at -20.32 5.08 0) (length 2.54)
          (name "GPIO19/MISO1")
          (number "35")
        )
        (pin bidirectional line (at -20.32 15.24 0) (length 2.54)
          (name "GPIO16")
          (number "36")
        )
        (pin bidirectional line (at -20.32 -15.24 0) (length 2.54)
          (name "GPIO26")
          (number "37")
        )
        (pin bidirectional line (at -20.32 2.54 0) (length 2.54)
          (name "GPIO20/MOSI1")
          (number "38")
        )
        (pin power_in line (at 7.62 -33.02 90) (length 2.54)
          (name "GND")
          (number "39")
        )
        (pin power_in line (at -2.54 33.02 270) (length 2.54)
          (name "5V")
          (number "4")
        )
        (pin bidirectional line (at -20.32 0 0) (length 2.54)
          (name "GPIO21/SCLK1")
          (number "40")
        )
        (pin bidirectional line (at 20.32 12.7 180) (length 2.54)
          (name "SCL/GPIO3")
          (number "5")
        )
        (pin power_in line (at -10.16 -33.02 90) (length 2.54)
          (name "GND")
          (number "6")
        )
        (pin bidirectional line (at 20.32 7.62 180) (length 2.54)
          (name "GCLK0/GPIO4")
          (number "7")
        )
        (pin bidirectional line (at -20.32 22.86 0) (length 2.54)
          (name "GPIO14/TXD")
          (number "8")
        )
        (pin power_in line (at -7.62 -33.02 90) (length 2.54)
          (name "GND")
          (number "9")
        )
      )
    )
    (symbol "Device:C_Polarized" (pin_numbers hide) (pin_names (offset 0.254)) (in_bom yes) (on_board yes)
      (property "Reference" "C" (at 0.635 2.54 0))
      (property "Value" "C_Polarized" (at 0.635 -2.54 0))
      (property "Footprint" "" (at 0.9652 -3.81 0))
      (property "Datasheet" "~" (at 0 0 0))
      (property "ki_keywords" "cap capacitor" (at 0 0 0))
      (property "ki_description" "Polarized capacitor" (at 0 0 0))
      (property "ki_fp_filters" "CP_*" (at 0 0 0))
      (symbol "C_Polarized_0_1"
        (rectangle (start -2.286 0.508) (end 2.286 1.016)
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.778 2.286)
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    (symbol "Device:LED" (pin_numbers hide) (pin_names (offset 1.016) hide) (in_bom yes) (on_board yes)
      (property "Reference" "D" (at 0 2.54 0))
      (property "Value" "LED" (at 0 -2.54 0))
      (property "Footprint" "" (at 0 0 0))
      (property "Datasheet" "~" (at 0 0 0))
      (property "ki_keywords" "LED diode" (at 0 0 0))
      (property "ki_description" "Light emitting diode" (at 0 0 0))
      (property "ki_fp_filters" "LED* LED_SMD:* LED_THT:*" (at 0 0 0))
      (symbol "LED_0_1"
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          (name "A")
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    )
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      (property "Footprint" "" (at -1.778 0 90))
      (property "Datasheet" "~" (at 0 0 0))
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          (fill (type none))
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          (name "~")
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    )
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      (property "Reference" "U" (at -4.318 8.89 0))
      (property "Value" "SN75176AP" (at 1.016 8.89 0))
      (property "Footprint" "Package_DIP:DIP-8_W7.62mm" (at 0 -12.7 0))
      (property "Datasheet" "http://www.ti.com/lit/ds/symlink/sn75176a.pdf" (at 40.64 -5.08 0))
      (property "ki_keywords" "Differential bus transceiver" (at 0 0 0))
      (property "ki_description" "Differential RS-422/RS-485 bus transceiver, DIP-8" (at 0 0 0))
      (property "ki_fp_filters" "DIP*W7.62mm*" (at 0 0 0))
      (symbol "SN75176AP_0_1"
        (rectangle (start -5.08 7.62) (end 5.08 -7.62)
          (fill (type background))
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      )
      (symbol "SN75176AP_1_1"
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          (name "R")
          (number "1")
        )
        (pin input line (at -7.62 -2.54 0) (length 2.54)
          (name "~{RE}")
          (number "2")
        )
        (pin input line (at -7.62 5.08 0) (length 2.54)
          (name "DE")
          (number "3")
        )
        (pin input line (at -7.62 2.54 0) (length 2.54)
          (name "D")
          (number "4")
        )
        (pin power_in line (at 0 -10.16 90) (length 2.54)
          (name "GND")
          (number "5")
        )
        (pin bidirectional line (at 7.62 -5.08 180) (length 2.54)
          (name "A")
          (number "6")
        )
        (pin bidirectional line (at 7.62 -2.54 180) (length 2.54)
          (name "B")
          (number "7")
        )
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  (text "Optokoppler für das Empfangen von Daten\nPi-GPIO 23 - empfängt die Daten vom BUS\nAntwort vom Attiny\nHIGH/LOW - Twist durch Optokoppler"
    (at 101.6 124.46 0)
  )
  (text "Signalisiert den Zustand zum gejumperten Attiny85\nLED weiß leuchtet - Attiny aktiv - RESET=HIGH(3V3)\nLED blau leuchtet - Attiny ist in Programmiermodus RESET=LOW(GND)"
    (at 101.6 156.21 0)
  )
  (text "SN75176 Basis - auf Pi-Board\nPegel - sicherung über Pull-up und Pull-down\nSaubere Pegel an RE/DE über GPIO22 mit Pull-down"
    (at 128.27 24.13 0)
  )
  (text "Optokoppler für das Senden von Daten\nPI-GPIO24 - sendet Daten zum BUS\nnach Umschaltung SN75 in Sende-Status\nHIGH/LOW - Twist durch Optokoppler"
    (at 36.83 125.73 0)
  )
  (text "Signalisiert den Zustand von SN75\nLED weiß leuchtet - SN75176 empfängt GPIO22=LOW(GND)\nLED blau leuchtet - SN75176 sendet GPIO22=HIGH(3V3)"
    (at 25.4 156.21 0)
  )
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  )
  (global_label "GND" (shape output) (at 40.64 31.75 0) (fields_autoplaced)
    (property "Intersheetrefs" "${INTERSHEET_REFS}" (at 47.4957 31.75 0))
  )
  (global_label "GND" (shape input) (at 82.55 102.87 270) (fields_autoplaced)
    (property "Intersheetrefs" "${INTERSHEET_REFS}" (at 82.55 109.7257 90))
  )
  (global_label "Pi-GPIO24" (shape bidirectional) (at 39.37 134.62 180) (fields_autoplaced)
    (property "Intersheetrefs" "${INTERSHEET_REFS}" (at 24.932 134.62 0))
  )
  (global_label "GND" (shape input) (at 257.81 90.17 180) (fields_autoplaced)
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  )
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  )
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  )
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  )
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      (project "RABoU"
        (path
          (reference "JP10") (unit 1)
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      (project "RABoU"
        (path
          (reference "J2") (unit 1)
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      (project "RABoU"
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    (property "Footprint" "PCM_Resistor_THT_AKL:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" (at 154.94 164.338 90))
    (property "Datasheet" "~" (at 154.94 162.56 0))
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      (project "RABoU"
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      (project "RABoU"
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)
