(kicad_pcb (version 20240108) (generator "iemi_athleticsone_board") (generator_version "1")
  (general (thickness 1.0) (legacy_teardrops no))
  (paper "A2")
  (title_block (title "AthleticsOne finish-post board rev A") (date "2026-11-03") (rev "A") (company "IEMI Labs") (comment 1 "Unfolded post board (base, riser, brain 8-layer HDI, radio section, camera head, top) and the starter-unit board"))
  (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") (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 (pad_to_mask_clearance 0))
  (net 0 "")
  (gr_poly (pts (xy -59 -979) (xy -35 -979) (xy -35 -640) (xy -10 -640) (xy -10 -500) (xy -35 -500) (xy -35 -380) (xy -10 -380) (xy -10 10) (xy -50 10) (xy -50 192) (xy 50 192) (xy 50 10) (xy 44 10) (xy 44 -90) (xy 50 -90) (xy 50 -106) (xy 22 -106) (xy 22 -90) (xy 28 -90) (xy 28 10) (xy 10 10) (xy 10 -380) (xy 35 -380) (xy 35 -500) (xy 10 -500) (xy 10 -640) (xy 35 -640) (xy 35 -1040) (xy 8 -1040) (xy 8 -1288) (xy 12 -1288) (xy 12 -1312) (xy 6 -1312) (xy 6 -1340) (xy 30 -1340) (xy 30 -1392) (xy -30 -1392) (xy -30 -1340) (xy -6 -1340) (xy -6 -1312) (xy -12 -1312) (xy -12 -1288) (xy -8 -1288) (xy -8 -1040) (xy -35 -1040) (xy -35 -991) (xy -59 -991)) (stroke (width 0.1) (type solid)) (fill none) (layer "Edge.Cuts"))
  (gr_poly (pts (xy 80 192) (xy 160 192) (xy 160 142) (xy 80 142)) (stroke (width 0.1) (type solid)) (fill none) (layer "Edge.Cuts"))
  (gr_rect (start 28 10) (end 44 -90) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "cflex: flex, 2 layers" (at 36 -40 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (gr_rect (start -10 10) (end 10 -380) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "riser: flex, 2 layers" (at 0 -185 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (gr_rect (start -10 -500) (end 10 -640) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "link: flex, 2 layers" (at 0 -570 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (gr_rect (start -51 -979) (end -35 -991) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "micflex: flex, 2 layers" (at -43 -985 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (gr_rect (start -8 -1040) (end 8 -1288) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "upper: flex, 2 layers" (at 0 -1164 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (gr_rect (start -6 -1312) (end 6 -1340) (stroke (width 0.1) (type dash)) (fill none) (layer "Cmts.User"))
  (gr_text "topflex: flex, 2 layers" (at 0 -1326 90) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
  (footprint "U30_3x3" (layer "F.Cu") (at -20 150)
    (property "Reference" "U30" (at 0 0 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "TI BQ24074 1-cell Li-ion charger, 1.5 A, power path, VQFN-16" (at 0 2.3 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U31_6x4" (layer "F.Cu") (at -20 140)
    (property "Reference" "U31" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "1-cell Li-ion protector (TI BQ2970 class) + dual FET" (at 0 2.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -3 -2) (end 3 2) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -3 -2) (end 3 2) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U32_3x3" (layer "F.Cu") (at -8 150)
    (property "Reference" "U32" (at 0 0 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Battery gauge, coulomb counting (MAX17260 class)" (at 0 2.3 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U33_6x4" (layer "F.Cu") (at -8 170)
    (property "Reference" "U33" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Charge input: 20 V TVS, reverse protection, fuse" (at 0 2.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -3 -2) (end 3 2) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -3 -2) (end 3 2) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U34_6x5" (layer "F.Cu") (at 10 150)
    (property "Reference" "U34" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "TI TPS61023 boost, cells to 5 V (lamp LEDs, sounder) + inductor" (at 0 3.3 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -3 -2.5) (end 3 2.5) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -3 -2.5) (end 3 2.5) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U35_3x3" (layer "F.Cu") (at 10 140)
    (property "Reference" "U35" (at 0 0 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Load switch: the V1 core is on only while a race is armed (S1 controls it)" (at 0 2.3 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -1.5 -1.5) (end 1.5 1.5) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "J1_10x12" (layer "F.Cu") (at 0 185.5)
    (property "Reference" "J1" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "M8 3-pin A-coded female PCB socket, rear mount through the base end wall (screw-locked charge lead)" (at 0 6.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -6) (end 5 6) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -5 -6) (end 5 6) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "J4_12x6" (layer "F.Cu") (at 0 118)
    (property "Reference" "J4" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Two sealed brass feedthrough pins through the base top to the dock pads (charge + / −)" (at 0 3.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -6 -3) (end 6 3) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -6 -3) (end 6 3) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "RS1_6.3x3.2" (layer "F.Cu") (at -20 125)
    (property "Reference" "RS1" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Current-sense resistor for the gauge, 2512" (at 0 2.4 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -3.15 -1.6) (end 3.15 1.6) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -3.15 -1.6) (end 3.15 1.6) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "SW1_12.8x5.8" (layer "B.Cu") (at 30 60)
    (property "Reference" "SW1" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "Omron D2F-01 tamper switch, pressed by a boss on the bolted base floor plate" (at 0 3.7 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -6.4 -2.9) (end 6.4 2.9) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -6.4 -2.9) (end 6.4 2.9) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "TP2_10x6" (layer "B.Cu") (at -20 150)
    (property "Reference" "TP2" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "Factory pads: cell voltage, charge current, gauge I2C" (at 0 3.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -3) (end 5 3) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -5 -3) (end 5 3) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "BT1_10x6" (layer "F.Cu") (at 30 -98)
    (property "Reference" "BT1" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Nickel-strip pad, cell pack + (4 × Samsung INR18650-35E in parallel)" (at 0 3.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -3) (end 5 3) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -5 -3) (end 5 3) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "BT2_10x6" (layer "F.Cu") (at 42 -98)
    (property "Reference" "BT2" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Nickel-strip pad, cell pack −, with the pack thermistor beside it" (at 0 3.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -3) (end 5 3) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U1_14x14" (layer "F.Cu") (at 0 -440)
    (property "Reference" "U1" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Rockchip RV1126B-P, FCCSP-409, 0.65 mm pitch; thermal pad to the track-face wall" (at 0 7.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -7 -7) (end 7 7) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U2_10x14.5" (layer "F.Cu") (at -17 -440)
    (property "Reference" "U2" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "LPDDR4X 8 Gbit ×32 (1 GB), 200-ball FBGA" (at 0 8.05 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -7.25) (end 5 7.25) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U3_12x14" (layer "F.Cu") (at 18 -440)
    (property "Reference" "U3" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Multi-rail regulators for the RV1126B (core, NPU, logic, DDR, 1.8/3.3 V) + inductors" (at 0 7.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -6 -7) (end 6 7) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
    (fp_rect (start -6 -7) (end 6 7) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U4_10x10" (layer "F.Cu") (at 18 -410)
    (property "Reference" "U4" (at 0 0 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "Buck-boost 2.7–4.2 V cells to 3.3 V (TPS63020 class) + inductor" (at 0 5.8 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -5) (end 5 5) (stroke (width 0.05) (type solid)) (fill none) (layer "F.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U7_3x2.5" (layer "F.Cu") (at -17 -415)
    (property "Reference" "U7" (at 0 0 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.12))))
    (property "Value" "ST LSM6DSOX motion sensor" (at 0 2.05 0) (layer "F.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
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    (fp_rect (start -1.5 -1.25) (end 1.5 1.25) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "C1_14x14" (layer "B.Cu") (at 0 -440)
    (property "Reference" "C1" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "RV1126B decoupling field (under the chip)" (at 0 7.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -7 -7) (end 7 7) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U10_11.5x13" (layer "B.Cu") (at -18 -440)
    (property "Reference" "U10" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "eMMC 5.1 8 GB industrial, 153-ball FBGA; shipped empty (the processor tries the eMMC before the card, so an image here would win): our loader on the card is set to read the card first" (at 0 7.3 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "J2_14x15" (layer "B.Cu") (at 20 -412)
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    (property "Value" "microSD socket with a hinged, latched lid (Amphenol 101-00660 class), fitted on every board: our software starts from the card" (at 0 8.3 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U90_2x2" (layer "B.Cu") (at 29 -412)
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    (fp_rect (start -1 -1) (end 1 1) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U91_3x1.35" (layer "B.Cu") (at 11 -412)
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    (fp_rect (start -1.5 -0.675) (end 1.5 0.675) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "TP1_10x12" (layer "B.Cu") (at 20 -440)
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    (property "Value" "Factory pads: USB 2.0 (writing software), debug serial, boot, rails, current sense" (at 0 6.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -5 -6) (end 5 6) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "Y1_3.2x2.5" (layer "B.Cu") (at 11 -460)
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    (property "Value" "24 MHz MEMS oscillator (SiTime SiT8008 class, rated to 50,000 g; a quartz crystal is not rated for the shock)" (at 0 2.05 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -1.6 -1.25) (end 1.6 1.25) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
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    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
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