(kicad_pcb (version 20240108) (generator "iemi_careone_board") (generator_version "1")
  (general (thickness 1.6) (legacy_teardrops no))
  (paper "A1")
  (title_block (title "CareOne locker board rev A") (date "2026-11-04") (rev "A") (company "IEMI Labs") (comment 1 "Top board in the locker's sealed top, front strip, 65 deg radar tab, bed-side strip with the call key, glow strip in the bed-side panel on a long tail"))
  (layers (0 "F.Cu" signal) (1 "In1.Cu" signal) (2 "In2.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 "")
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  (gr_poly (pts (xy 38 -288) (xy 62 -288) (xy 62 -312) (xy 38 -312)) (stroke (width 0.1) (type solid)) (fill none) (layer "Edge.Cuts"))
  (gr_poly (pts (xy -182 -318) (xy -158 -318) (xy -158 -342) (xy -182 -342)) (stroke (width 0.1) (type solid)) (fill none) (layer "Edge.Cuts"))
  (gr_text "glow tail 12 mm wide, about 684 mm: down the bed-side panel to the glow strip" (at -294 -355 0) (layer "Cmts.User") (effects (font (size 1.5 1.5) (thickness 0.2))))
  (gr_text "front flex and side flex fold 90 deg up; radar tab flex folds 65 deg up" (at 110 -448.78 0) (layer "Cmts.User") (effects (font (size 1 1) (thickness 0.15))))
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    (property "Reference" "U1" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "Espressif ESP32-S3-WROOM-1-N16R8: ESP32-S3, 16 MB flash, 8 MB PSRAM (voice notes, radar tracks), PCB antenna, FCC/CE certified; castellated, soldered, turned so the antenna end meets the right edge" (at 0 9.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -12.75 -9) (end 12.75 9) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -12.75 -9) (end 12.75 9) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U2_3x2" (layer "B.Cu") (at 180 -200)
    (property "Reference" "U2" (at 0 0 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "Microchip ATECC608B, UDFN-8: signs every call" (at 0 1.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -1.5 -1) (end 1.5 1) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -1.5 -1) (end 1.5 1) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U9_2x3" (layer "B.Cu") (at 186 -200)
    (property "Reference" "U9" (at 0 0 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "ID EEPROM 2 kbit (product, board version, serial, calibration)" (at 0 2.3 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)
  )
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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 (ESP32-S3 SD bus; the loader the maker flashes reads our program from it)" (at 0 8.3 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -7 -7.5) (end 7 7.5) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -7 -7.5) (end 7 7.5) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
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    (property "Value" "microSD card power switch (TPS22917-class load switch, 3.3 V, driven by the card power-enable pin) with a 10 kΩ discharge resistor: a stuck card can be power-cycled" (at 0 1.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (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 150 -221)
    (property "Reference" "U91" (at 0 0 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "microSD ESD and filter array, 6 lines (TPD6F003-class), with 22 Ω series resistors on CLK, CMD and D0–D3 and the card-detect line" (at 0 1.475 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (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)
  )
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    (property "Reference" "U7" (at 0 0 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "Level shifter for the LED data lines (3.3 to 5 V), call light and floor glow" (at 0 1.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
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    (fp_rect (start -1 -1) (end 1 1) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "J1_8x10" (layer "B.Cu") (at 180 -40)
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    (property "Value" "Molex Micro-Fit 3.0 single-row vertical header, 2 circuits, latched: 5 V and ground from the listed USB adapter's lead, which comes up through a grommet in the service tray" (at 0 5.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -4 -5) (end 4 5) (stroke (width 0.05) (type solid)) (fill none) (layer "B.CrtYd"))
    (fp_rect (start -4 -5) (end 4 5) (stroke (width 0.12) (type solid)) (fill none) (layer "B.SilkS"))
    (attr board_only exclude_from_pos_files exclude_from_bom)
  )
  (footprint "U4_14x10" (layer "B.Cu") (at 150 -80)
    (property "Reference" "U4" (at 0 0 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.12)) (justify mirror)))
    (property "Value" "5 V input: polyfuse, TVS, reverse block; TI BQ24074 1S charger with power path (1 A, NTC input); TI TPS63020 3.3 V buck-boost" (at 0 5.8 0) (layer "B.Fab") hide (effects (font (size 0.5 0.5) (thickness 0.08))))
    (fp_rect (start -7 -5) (end 7 5) (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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    (property "Value" "Keystone 1042 SMT holder for one 18650 cell (Samsung INR18650-35E), back cell" (at 0 11.3 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)
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    (property "Value" "Keystone 1042 SMT holder for one 18650 cell (Samsung INR18650-35E), front cell" (at 0 11.3 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)
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  (footprint "RT1_1.6x0.8" (layer "B.Cu") (at -60 -52.5)
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    (property "Value" "NTC thermistor 10 k, 0603, between the two cell holders, read by the BQ24074 so charging holds outside 0–45 °C" (at 0 1.2 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)
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    (property "Value" "Nuvoton NAU7802 24-bit load-cell chip for the water-jug plate's 5 kg bar, with its four gauge-wire pads" (at 0 3.9 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)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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    (property "Value" "Radar rails (TI LP87745 class PMIC), 40 MHz crystal and 2 MB QSPI flash for the radar's own program" (at 0 4.8 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)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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    (attr board_only exclude_from_pos_files exclude_from_bom)
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