(kicad_pcb (version 20230121) (generator pcbnew)

  (general
    (thickness 1.6)
    (legacy_teardrops no)
  )

  (paper "A4")
  (layers
    (0 "F.Cu" signal)
    (31 "B.Cu" signal)
    (32 "B.Adhes" user "B.Adhesive")
    (33 "F.Adhes" user "F.Adhesive")
    (34 "B.Paste" user)
    (35 "F.Paste" user)
    (36 "B.SilkS" user "B.Silkscreen")
    (37 "F.SilkS" user "F.Silkscreen")
    (38 "B.Mask" user)
    (39 "F.Mask" user)
    (40 "Dwgs.User" user "User.Drawings")
    (41 "Cmts.User" user "User.Comments")
    (42 "Eco1.User" user "User.Eco1")
    (43 "Eco2.User" user "User.Eco2")
    (44 "Edge.Cuts" user)
    (45 "Margin" user)
    (46 "B.CrtYd" user "B.Courtyard")
    (47 "F.CrtYd" user "F.Courtyard")
    (48 "B.Fab" user)
    (49 "F.Fab" user)
  )

  (setup
    (stackup
      (layer "F.SilkS" (type "Top Silk Screen"))
      (layer "F.Paste" (type "Top Solder Paste"))
      (layer "F.Mask" (type "Top Solder Mask"))
      (layer "F.Cu" (type "copper" (thickness 0.035)))
      (layer "dielectric 1" (type "core" (thickness 1.51) (material "FR4" (epsilon_r 4.5) (loss_tan 0.02))))
      (layer "B.Cu" (type "copper" (thickness 0.035)))
      (layer "B.Mask" (type "Bottom Solder Mask"))
      (layer "B.Paste" (type "Bottom Solder Paste"))
      (layer "B.SilkS" (type "Bottom Silk Screen"))
    )
    (pad_to_mask_clearance 0)
    (pad_to_paste_clearance 0)
    (pad_to_paste_clearance_override 0)
    (aux_axis_origin 0 0)
    (grid_origin 0 0)
    (plot
      (plot_on_all_layers_selection 0x00000000)
      (disableapertmacros no)
      (usegerberextensions no)
      (usegerberattributes yes)
      (usegerberadvancedattributes yes)
      (creategerberjobfile yes)
      (dashed_line_dash_ratio 12.000000)
      (dashed_line_gap_ratio 3.000000)
      (svgprecision 4)
      (plotframeref no)
      (viasonmarkers no)
      (mode 1)
      (useauxorigin no)
      (hpglpennumber 1)
      (hpglpenspeed 20)
      (hpglpendiameter 15.000000)
      (pdf_front_fp_property_popups yes)
      (pdf_back_fp_property_popups yes)
      (dxfpolygonmode yes)
      (dxfimperialunits yes)
      (dxfusepcbnewfontwidth yes)
    )
  )

  (net 0 "")
  (net 1 "GND")
  (net 2 "VCC")
  (net 3 "SOIL_FREQ")
  (net 4 "AIR_FREQ")
  (net 5 "ONE_WIRE")
  (net 6 "SENSOR_SEL")

  (footprint "Package_DIP:DIP-14_W7.62mm" (layer "F.Cu")
    (tstamp 11111111-1111-1111-1111-111111111111)
    (at 50 50) (rotation 0)
    (property "Reference" "U1" (at 50 35 0)
      (effects (font (size 1.27 1.27) bold))
    )
    (property "Value" "74HC14" (at 50 65 0)
      (effects (font (size 1.27 1.27)))
    )
    (property "Footprint" "Package_DIP:DIP-14_W7.62mm" (at 50 50 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (property "Datasheet" "~" (at 50 50 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (path "/11111111-1111-1111-1111-111111111111")
    (attr smd)
    (fp_circle (center 0 0) (end 0.5 0) (stroke (width 0.12) (type default)) (fill none) (layer "F.SilkS"))
    (fp_line (start -5.08 -3.81) (end 5.08 -3.81) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 5.08 -3.81) (end 5.08 3.81) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 5.08 3.81) (end -5.08 3.81) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -5.08 3.81) (end -5.08 -3.81) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (pad "1" smd roundrect (at -3.81 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "2" smd roundrect (at -2.54 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "3" smd roundrect (at -1.27 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "4" smd roundrect (at 0 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "5" smd roundrect (at 1.27 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "6" smd roundrect (at 2.54 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "7" smd roundrect (at 3.81 2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "8" smd roundrect (at 3.81 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "9" smd roundrect (at 2.54 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "10" smd roundrect (at 1.27 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "11" smd roundrect (at 0 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "12" smd roundrect (at -1.27 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "13" smd roundrect (at -2.54 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "14" smd roundrect (at -3.81 -2.54) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
  )

  (footprint "Package_DIP:DIP-8_W7.62mm" (layer "F.Cu")
    (tstamp 22222222-2222-2222-2222-222222222222)
    (at 80 50) (rotation 0)
    (property "Reference" "U2" (at 80 35 0)
      (effects (font (size 1.27 1.27) bold))
    )
    (property "Value" "ATTINY85-20PU" (at 80 65 0)
      (effects (font (size 1.27 1.27)))
    )
    (property "Footprint" "Package_DIP:DIP-8_W7.62mm" (at 80 50 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (property "Datasheet" "~" (at 80 50 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (path "/22222222-2222-2222-2222-222222222222")
    (attr smd)
    (fp_circle (center 0 0) (end 0.5 0) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -3.81 -2.54) (end 3.81 -2.54) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 3.81 -2.54) (end 3.81 2.54) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 3.81 2.54) (end -3.81 2.54) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -3.81 2.54) (end -3.81 -2.54) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (pad "1" smd roundrect (at -2.54 1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "2" smd roundrect (at -1.27 1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "3" smd roundrect (at 0 1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "4" smd roundrect (at 1.27 1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "5" smd roundrect (at 1.27 -1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "6" smd roundrect (at 0 -1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "7" smd roundrect (at -1.27 -1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "8" smd roundrect (at -2.54 -1.27) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
  )

  (footprint "Connector_Generic:Conn_01x02" (layer "F.Cu")
    (tstamp 33333333-3333-3333-3333-333333333333)
    (at 20 20) (rotation 0)
    (property "Reference" "J1" (at 20 15 0)
      (effects (font (size 1.27 1.27) bold))
    )
    (property "Value" "Conn_01x02" (at 20 25 0)
      (effects (font (size 1.27 1.27)))
    )
    (property "Footprint" "Connector_Generic:Conn_01x02" (at 20 20 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (property "Datasheet" "~" (at 20 20 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (path "/33333333-3333-3333-3333-333333333333")
    (attr smd)
    (fp_line (start -1.27 -1.27) (end 1.27 -1.27) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 1.27 -1.27) (end 1.27 1.27) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 1.27 1.27) (end -1.27 1.27) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -1.27 1.27) (end -1.27 -1.27) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (pad "1" smd roundrect (at -1.27 0) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "2" smd roundrect (at 1.27 0) (size 1.7 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
  )

  (footprint "Resistor_SMD:R_0603_1608Metric" (layer "F.Cu")
    (tstamp 44444444-4444-4444-4444-444444444444)
    (at 60 30) (rotation 0)
    (property "Reference" "R1" (at 60 25 0)
      (effects (font (size 1.27 1.27) bold))
    )
    (property "Value" "10k" (at 60 35 0)
      (effects (font (size 1.27 1.27)))
    )
    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 60 30 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (property "Datasheet" "~" (at 60 30 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (path "/44444444-4444-4444-4444-444444444444")
    (attr smd)
    (fp_line (start -0.8 -0.4) (end 0.8 -0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 0.8 -0.4) (end 0.8 0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 0.8 0.4) (end -0.8 0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -0.8 0.4) (end -0.8 -0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (pad "1" smd roundrect (at -0.8 0) (size 0.95 0.8) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "2" smd roundrect (at 0.8 0) (size 0.95 0.8) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
  )

  (footprint "Capacitor_SMD:C_0603_1608Metric" (layer "F.Cu")
    (tstamp 55555555-5555-5555-5555-555555555555)
    (at 70 30) (rotation 0)
    (property "Reference" "C1" (at 70 25 0)
      (effects (font (size 1.27 1.27) bold))
    )
    (property "Value" "100n" (at 70 35 0)
      (effects (font (size 1.27 1.27)))
    )
    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 70 30 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (property "Datasheet" "~" (at 70 30 0)
      (effects (font (size 1.27 1.27) hide))
    )
    (path "/55555555-5555-5555-5555-555555555555")
    (attr smd)
    (fp_line (start -0.8 -0.4) (end 0.8 -0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 0.8 -0.4) (end 0.8 0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start 0.8 0.4) (end -0.8 0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (fp_line (start -0.8 0.4) (end -0.8 -0.4) (stroke (width 0.12) (type default)) (layer "F.SilkS"))
    (pad "1" smd roundrect (at -0.8 0) (size 0.95 0.8) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
    (pad "2" smd roundrect (at 0.8 0) (size 0.95 0.8) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
  )

  (gr_rect (start 10 10) (end 90 70) (stroke (width 0.12) (type default)) (fill none) (layer "Edge.Cuts"))

  (gr_text "Primary Soil Sensor" (at 25 15) (layer "F.SilkS")
    (effects (font (size 1.27 1.27) bold))
  )

  (gr_text "Air Reference" (at 65 15) (layer "F.SilkS")
    (effects (font (size 1.27 1.27) bold))
  )

  (gr_text "Guard Ring" (at 50 5) (layer "F.SilkS")
    (effects (font (size 1.27 1.27) bold))
  )

  (segment (start 50 50) (end 80 50) (width 0.25) (layer "F.Cu") (net 2))
  (segment (start 20 20) (end 50 50) (width 0.5) (layer "F.Cu") (net 2))
  (segment (start 50 50) (end 50 30) (width 0.25) (layer "F.Cu") (net 3))
  (segment (start 50 50) (end 50 70) (width 0.25) (layer "F.Cu") (net 4))
  (segment (start 80 50) (end 80 30) (width 0.25) (layer "F.Cu") (net 5))
  (segment (start 80 50) (end 80 70) (width 0.25) (layer "F.Cu") (net 6))

  (zone (net 1) (net_name "GND") (layer "B.Cu") (hatch edge 0.5) (connect_pads (clearance 0.508))
    (min_thickness 0.254)
    (filled_areas_thickness no)
    (keepout (tracks not_allowed) (vias not_allowed) (pads not_allowed) (copperpour not_allowed) (footprints not_allowed))
    (fill (thermal_gap 0.508) (thermal_bridge_width 0.508))
    (polygon
      (pts
        (xy 10 10) (xy 90 10) (xy 90 70) (xy 10 70)
      )
    )
  )

  (zone (net 2) (net_name "VCC") (layer "F.Cu") (hatch edge 0.5) (connect_pads (clearance 0.508))
    (min_thickness 0.254)
    (filled_areas_thickness no)
    (keepout (tracks not_allowed) (vias not_allowed) (pads not_allowed) (copperpour not_allowed) (footprints not_allowed))
    (fill (thermal_gap 0.508) (thermal_bridge_width 0.508))
    (polygon
      (pts
        (xy 10 10) (xy 90 10) (xy 90 70) (xy 10 70)
      )
    )
  )
)