(kicad_pcb (version 20240124) (generator "kicad")
  (general
    (thickness 1.6)
    (drawings 0)
    (tracks 0)
    (zones 0)
    (modules 0)
    (nets 12)
  )
  (page A4 portrait)
  (title_block
    (title "Pi Multi-FX Pedal — PCM1808+PCM5102 I2S HAT")
    (date "2026-06-07")
    (rev "1.0")
    (company "Ourpad Networks")
  )
  (layers
    (0 "F.Cu" signal)
    (31 "B.Cu" signal)
    (36 "B.Paste" user)
    (37 "F.Paste" user)
    (38 "B.SilkS" user)
    (39 "F.SilkS" user)
    (40 "B.Mask" user)
    (41 "F.Mask" user)
    (44 "Edge.Cuts" user)
  )
  (setup
    (stackup
      (layer (name "F.Cu") (type "copper") (thickness 0.035))
      (layer (name "dielectric 1") (type "prepreg") (thickness 0.25)
        (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
      (layer (name "B.Cu") (type "copper") (thickness 0.035))
    )
    (pad_to_mask_clearance 0.05)
    (soldermask_min_width 0.1)
  )
  (net 0 "")
  (net 1 "GND")
  (net 2 "+5V")
  (net 3 "+3.3V")
  (net 4 "I2S_BCLK")
  (net 5 "I2S_LRCLK")
  (net 6 "I2S_DIN")
  (net 7 "I2S_DOUT")
  (net 8 "AUDIO_IN")
  (net 9 "AUDIO_OUT")
  (net 10 "PREAMP_OUT")
  (net 11 "GATE_SW")

  ;; Board outline — 65x56mm (standard 1590B footprint)
  (gr_rect (start -0.5 -0.5) (end 65 56) (layer "Edge.Cuts") (width 0.15) (fill none))

  ;; Mounting holes — 4x 3.2mm at corners
  (module "MountingHole_3.2mm" (at 3.175 3.175 0)
    (layer "F.Cu") (uuid "mh-1")
    (fp_text reference "MH1" (at 3.175 3.175) (layer "F.SilkS")
      (effects (font (size 1 1) (thickness 0.15))))
    (pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (layers *.Cu *.Mask))
  )
  (module "MountingHole_3.2mm" (at 61.825 3.175 0)
    (layer "F.Cu") (uuid "mh-2")
    (fp_text reference "MH2" (at 61.825 3.175) (layer "F.SilkS")
      (effects (font (size 1 1) (thickness 0.15))))
    (pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (layers *.Cu *.Mask))
  )
  (module "MountingHole_3.2mm" (at 3.175 52.825 0)
    (layer "F.Cu") (uuid "mh-3")
    (fp_text reference "MH3" (at 3.175 52.825) (layer "F.SilkS")
      (effects (font (size 1 1) (thickness 0.15))))
    (pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (layers *.Cu *.Mask))
  )
  (module "MountingHole_3.2mm" (at 61.825 52.825 0)
    (layer "F.Cu") (uuid "mh-4")
    (fp_text reference "MH4" (at 61.825 52.825) (layer "F.SilkS")
      (effects (font (size 1 1) (thickness 0.15))))
    (pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (layers *.Cu *.Mask))
  )
)