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SN-L00/hardware/kicad/SN-L00.kicad_pcb
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florian.berthold c625b426b8 Complete PCB layout with all footprints placed 
- All 22 components placed at specified coordinates
- Net assignments for power, I2C, trigger, and return signals
- Power section (D1, U1, C1-C3) on back layer
- Ground zones on both copper layers
- Silkscreen labels for jacks and branding
- Gerber output configured to manufacturing/gerbers/
2026-01-23 05:26:51 +01:00

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(kicad_pcb
(version 20240108)
(generator "pcbnew")
(generator_version "8.0")
(general
(thickness 1.6)
(legacy_teardrops no)
)
(paper "A4")
(title_block
(title "SN-L00 Latency Tester")
(date "2026-01-23")
(rev "0.1")
(company "SubModular")
)
(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
(pad_to_mask_clearance 0)
(allow_soldermask_bridges_in_footprints no)
(pcbplotparams
(layerselection 0x00010fc_ffffffff)
(plot_on_all_layers_selection 0x0000000_00000000)
(disableapertmacros no)
(usegerberextensions yes)
(usegerberattributes yes)
(usegerberadvancedattributes yes)
(creategerberjobfile yes)
(dashed_line_dash_ratio 12.000000)
(dashed_line_gap_ratio 3.000000)
(svgprecision 4)
(plotframeref no)
(viasonmask 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)
(dxfusepcbnewfont yes)
(psnegative no)
(psa4output no)
(plotreference yes)
(plotvalue yes)
(plotfptext yes)
(plotinvisibletext no)
(sketchpadsonfab no)
(subtractmaskfromsilk no)
(outputformat 1)
(mirror no)
(drillshape 1)
(scaleselection 1)
(outputdirectory "../manufacturing/gerbers/")
)
)
;; Net definitions
(net 0 "")
(net 1 "GND")
(net 2 "+12V")
(net 3 "+3.3V")
(net 4 "SDA")
(net 5 "SCL")
(net 6 "TRIG_OUT")
(net 7 "RETURN_IN")
(net 8 "BTN")
(net 9 "TRIG_BUF")
(net 10 "RET_DIV")
(net 11 "RET_BUF")
;; Net classes
(net_class "Default" ""
(clearance 0.2)
(trace_width 0.25)
(via_dia 0.6)
(via_drill 0.3)
(uvia_dia 0.3)
(uvia_drill 0.1)
)
(net_class "Power" ""
(clearance 0.3)
(trace_width 0.5)
(via_dia 0.8)
(via_drill 0.4)
(uvia_dia 0.3)
(uvia_drill 0.1)
(add_net "+12V")
(add_net "+3.3V")
(add_net "GND")
)
;; Board outline - 6HP Eurorack PCB (28mm x 100mm)
(gr_rect
(start 0 0)
(end 28 100)
(stroke (width 0.15) (type solid))
(fill none)
(layer "Edge.Cuts")
(uuid "board-outline")
)
;; ============================================
;; MOUNTING HOLES
;; ============================================
;; Top mounting hole (MH1)
(footprint "MountingHole:MountingHole_3.2mm_M3"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000001")
(at 14 5)
(property "Reference" "MH1" (at 0 -3 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.15))))
(property "Value" "MountingHole" (at 0 3 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.15))))
(pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (drill 3.2) (layers "*.Cu" "*.Mask"))
)
;; Bottom mounting hole (MH2)
(footprint "MountingHole:MountingHole_3.2mm_M3"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000002")
(at 14 95)
(property "Reference" "MH2" (at 0 -3 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.15))))
(property "Value" "MountingHole" (at 0 3 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.15))))
(pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (drill 3.2) (layers "*.Cu" "*.Mask"))
)
;; ============================================
;; MODULES (Hand-solder)
;; ============================================
;; OLED 128x32 I2C Module (MOD2) - 4-pin header
(footprint "SN-L00:OLED_128x32_I2C"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000010")
(at 14 17.5)
(property "Reference" "MOD2" (at 0 -7 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))
(property "Value" "OLED_128x32" (at 0 7 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))
(fp_line (start -14 -5) (end 14 -5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 14 -5) (end 14 5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 14 5) (end -14 5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start -14 5) (end -14 -5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(pad "1" thru_hole circle (at -3.81 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "2" thru_hole circle (at -1.27 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 3 "+3.3V"))
(pad "3" thru_hole circle (at 1.27 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 5 "SCL"))
(pad "4" thru_hole circle (at 3.81 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 4 "SDA"))
)
;; RP2040-Zero Module (MOD1) - 2x9 header
(footprint "SN-L00:RP2040-Zero"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000011")
(at 14 46.5)
(property "Reference" "MOD1" (at 0 -13 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))
(property "Value" "RP2040-Zero" (at 0 13 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))
(fp_line (start -9.5 -11.5) (end 9.5 -11.5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 9.5 -11.5) (end 9.5 11.5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 9.5 11.5) (end -9.5 11.5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start -9.5 11.5) (end -9.5 -11.5) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
;; Left column (pins 1-9)
(pad "1" thru_hole rect (at -7.62 -10.16) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "2" thru_hole circle (at -7.62 -7.62) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "3" thru_hole circle (at -7.62 -5.08) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 3 "+3.3V"))
(pad "4" thru_hole circle (at -7.62 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "5" thru_hole circle (at -7.62 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "6" thru_hole circle (at -7.62 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 6 "TRIG_OUT"))
(pad "7" thru_hole circle (at -7.62 5.08) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 7 "RETURN_IN"))
(pad "8" thru_hole circle (at -7.62 7.62) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 8 "BTN"))
(pad "9" thru_hole circle (at -7.62 10.16) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
;; Right column (pins 10-18)
(pad "10" thru_hole circle (at 7.62 -10.16) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 3 "+3.3V"))
(pad "11" thru_hole circle (at 7.62 -7.62) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "12" thru_hole circle (at 7.62 -5.08) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 4 "SDA"))
(pad "13" thru_hole circle (at 7.62 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 5 "SCL"))
(pad "14" thru_hole circle (at 7.62 0) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "15" thru_hole circle (at 7.62 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "16" thru_hole circle (at 7.62 5.08) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "17" thru_hole circle (at 7.62 7.62) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "18" thru_hole circle (at 7.62 10.16) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
)
;; ============================================
;; USER INTERFACE
;; ============================================
;; SW1 - Tactile Switch 6x6mm
(footprint "Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000020")
(at 14 31.5)
(property "Reference" "SW1" (at 0 -5 0) (layer "F.SilkS") (effects (font (size 0.8 0.8) (thickness 0.15))))
(property "Value" "6x6mm" (at 0 5 0) (layer "F.Fab") (effects (font (size 0.8 0.8) (thickness 0.15))))
(fp_line (start -3 -3) (end 3 -3) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 3 -3) (end 3 3) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 3 3) (end -3 3) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start -3 3) (end -3 -3) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(pad "1" smd rect (at -3.85 2.25) (size 1.6 1.4) (layers "F.Cu" "F.Paste" "F.Mask") (net 8 "BTN"))
(pad "2" smd rect (at 3.85 2.25) (size 1.6 1.4) (layers "F.Cu" "F.Paste" "F.Mask") (net 1 "GND"))
(pad "3" smd rect (at -3.85 -2.25) (size 1.6 1.4) (layers "F.Cu" "F.Paste" "F.Mask") (net 8 "BTN"))
(pad "4" smd rect (at 3.85 -2.25) (size 1.6 1.4) (layers "F.Cu" "F.Paste" "F.Mask") (net 1 "GND"))
)
;; R1 - Button pullup 10K (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000021")
(at 10 35)
(property "Reference" "R1" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "10K" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 8 "BTN"))
)
;; D2 - Power LED Green (0603)
(footprint "LED_SMD:LED_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000022")
(at 24 31.5 90)
(property "Reference" "D2" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "Green" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.75 0) (size 0.65 0.65) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
(pad "2" smd roundrect (at 0.75 0) (size 0.65 0.65) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
)
;; R2 - LED resistor 1K (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000023")
(at 24 36 90)
(property "Reference" "R2" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "1K" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
)
;; ============================================
;; CONNECTORS
;; ============================================
;; J1 - Eurorack Power Header 2x5
(footprint "Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000030")
(at 14 92)
(property "Reference" "J1" (at 0 -7 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))
(property "Value" "Eurorack_2x5" (at 0 7 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))
(fp_line (start -6.35 -5.08) (end 6.35 -5.08) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 6.35 -5.08) (end 6.35 5.08) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start 6.35 5.08) (end -6.35 5.08) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
(fp_line (start -6.35 5.08) (end -6.35 -5.08) (stroke (width 0.12) (type solid)) (layer "F.SilkS"))
;; Row 1 (top)
(pad "1" thru_hole rect (at -5.08 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "2" thru_hole circle (at -5.08 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "3" thru_hole circle (at -2.54 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "4" thru_hole circle (at -2.54 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 2 "+12V"))
(pad "5" thru_hole circle (at 0 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "6" thru_hole circle (at 0 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 2 "+12V"))
(pad "7" thru_hole circle (at 2.54 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "8" thru_hole circle (at 2.54 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
(pad "9" thru_hole circle (at 5.08 -2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "10" thru_hole circle (at 5.08 2.54) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
)
;; J2 - Thonkiconn TRIG jack
(footprint "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000031")
(at 7 83)
(property "Reference" "J2" (at 0 -6 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))
(property "Value" "TRIG" (at 0 6 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))
(fp_circle (center 0 0) (end 4 0) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
(pad "T" thru_hole circle (at 0 0) (size 2.8 2.8) (drill 2.0) (layers "*.Cu" "*.Mask") (net 9 "TRIG_BUF"))
(pad "S" thru_hole circle (at -3 3) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "TN" thru_hole circle (at 3 3) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
)
;; J3 - Thonkiconn RETURN jack
(footprint "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000032")
(at 21 83)
(property "Reference" "J3" (at 0 -6 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))
(property "Value" "RETURN" (at 0 6 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))
(fp_circle (center 0 0) (end 4 0) (stroke (width 0.12) (type solid)) (fill none) (layer "F.SilkS"))
(pad "T" thru_hole circle (at 0 0) (size 2.8 2.8) (drill 2.0) (layers "*.Cu" "*.Mask") (net 10 "RET_DIV"))
(pad "S" thru_hole circle (at -3 3) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask") (net 1 "GND"))
(pad "TN" thru_hole circle (at 3 3) (size 1.7 1.7) (drill 1.0) (layers "*.Cu" "*.Mask"))
)
;; ============================================
;; POWER SECTION (Back side)
;; ============================================
;; D1 - SS14 Schottky diode (SMA)
(footprint "Diode_SMD:D_SMA"
(layer "B.Cu")
(uuid "00000000-0000-0000-0000-000000000040")
(at 7 65)
(property "Reference" "D1" (at 0 -2.5 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.15)) (justify mirror)))
(property "Value" "SS14" (at 0 2.5 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.15)) (justify mirror)))
(pad "1" smd rect (at -2.1 0) (size 1.6 1.4) (layers "B.Cu" "B.Paste" "B.Mask") (net 2 "+12V"))
(pad "2" smd rect (at 2.1 0) (size 1.6 1.4) (layers "B.Cu" "B.Paste" "B.Mask"))
)
;; U1 - AMS1117-3.3 LDO (SOT-223)
(footprint "Package_TO_SOT_SMD:SOT-223-3_TabPin2"
(layer "B.Cu")
(uuid "00000000-0000-0000-0000-000000000041")
(at 14 65)
(property "Reference" "U1" (at 0 -4 0) (layer "B.SilkS") (effects (font (size 0.8 0.8) (thickness 0.15)) (justify mirror)))
(property "Value" "AMS1117-3.3" (at 0 4 0) (layer "B.Fab") (effects (font (size 0.8 0.8) (thickness 0.15)) (justify mirror)))
(fp_line (start -3.4 -1.6) (end 3.4 -1.6) (stroke (width 0.12) (type solid)) (layer "B.SilkS"))
(fp_line (start 3.4 -1.6) (end 3.4 1.6) (stroke (width 0.12) (type solid)) (layer "B.SilkS"))
(fp_line (start 3.4 1.6) (end -3.4 1.6) (stroke (width 0.12) (type solid)) (layer "B.SilkS"))
(fp_line (start -3.4 1.6) (end -3.4 -1.6) (stroke (width 0.12) (type solid)) (layer "B.SilkS"))
(pad "1" smd rect (at -2.3 3.2) (size 1 1.5) (layers "B.Cu" "B.Paste" "B.Mask") (net 1 "GND"))
(pad "2" smd rect (at 0 3.2) (size 1 1.5) (layers "B.Cu" "B.Paste" "B.Mask") (net 3 "+3.3V"))
(pad "3" smd rect (at 2.3 3.2) (size 1 1.5) (layers "B.Cu" "B.Paste" "B.Mask"))
(pad "2" smd rect (at 0 -3.2) (size 3.5 2) (layers "B.Cu" "B.Paste" "B.Mask") (net 3 "+3.3V"))
)
;; C1 - 10uF input cap (0805)
(footprint "Capacitor_SMD:C_0805_2012Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000042")
(at 10 60)
(property "Reference" "C1" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "10uF" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -1 0) (size 1 1.45) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
(pad "2" smd roundrect (at 1 0) (size 1 1.45) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; C2 - 10uF output cap (0805)
(footprint "Capacitor_SMD:C_0805_2012Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000043")
(at 18 60)
(property "Reference" "C2" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "10uF" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -1 0) (size 1 1.45) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 1 0) (size 1 1.45) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; C3 - 100nF output cap (0603)
(footprint "Capacitor_SMD:C_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000044")
(at 21 60)
(property "Reference" "C3" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "100nF" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; ============================================
;; TRIGGER OUTPUT CIRCUIT
;; ============================================
;; U2 - 74LVC1G17 Schmitt trigger (SOT-23-5)
(footprint "Package_TO_SOT_SMD:SOT-23-5"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000050")
(at 7 72)
(property "Reference" "U2" (at 0 -2.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "74LVC1G17" (at 0 2.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd rect (at -1.1 0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 6 "TRIG_OUT"))
(pad "2" smd rect (at -1.1 -0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 1 "GND"))
(pad "3" smd rect (at 1.1 -0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask"))
(pad "4" smd rect (at 1.1 0) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 9 "TRIG_BUF"))
(pad "5" smd rect (at 1.1 0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 3 "+3.3V"))
)
;; C4 - 100nF decoupling for U2 (0603)
(footprint "Capacitor_SMD:C_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000051")
(at 7 68)
(property "Reference" "C4" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "100nF" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; R3 - 100R trigger series resistor (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000052")
(at 7 76 90)
(property "Reference" "R3" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "100R" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 9 "TRIG_BUF"))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
)
;; ============================================
;; RETURN INPUT CIRCUIT
;; ============================================
;; U3 - MCP6001 op-amp (SOT-23-5)
(footprint "Package_TO_SOT_SMD:SOT-23-5"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000060")
(at 21 72)
(property "Reference" "U3" (at 0 -2.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "MCP6001" (at 0 2.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd rect (at -1.1 0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 11 "RET_BUF"))
(pad "2" smd rect (at -1.1 -0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 1 "GND"))
(pad "3" smd rect (at 1.1 -0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 11 "RET_BUF"))
(pad "4" smd rect (at 1.1 0) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 10 "RET_DIV"))
(pad "5" smd rect (at 1.1 0.95) (size 0.6 1.1) (layers "F.Cu" "F.Paste" "F.Mask") (net 3 "+3.3V"))
)
;; C5 - 100nF decoupling for U3 (0603)
(footprint "Capacitor_SMD:C_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000061")
(at 21 68)
(property "Reference" "C5" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "100nF" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 3 "+3.3V"))
(pad "2" smd roundrect (at 0.775 0) (size 0.9 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; R4 - 10K input resistor (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000062")
(at 21 76 90)
(property "Reference" "R4" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "10K" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 10 "RET_DIV"))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
)
;; R5 - 10K voltage divider top (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000063")
(at 18 76 90)
(property "Reference" "R5" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "10K" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 10 "RET_DIV"))
)
;; R6 - 22K voltage divider bottom (0603)
(footprint "Resistor_SMD:R_0603_1608Metric"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000064")
(at 18 72 90)
(property "Reference" "R6" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "22K" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd roundrect (at -0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 10 "RET_DIV"))
(pad "2" smd roundrect (at 0.825 0) (size 0.8 0.95) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.25) (net 1 "GND"))
)
;; D3 - BAT54 clamp diode to GND (SOD-323)
(footprint "Diode_SMD:D_SOD-323"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000065")
(at 24 70 90)
(property "Reference" "D3" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "BAT54" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd rect (at -1.15 0) (size 0.6 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (net 10 "RET_DIV"))
(pad "2" smd rect (at 1.15 0) (size 0.6 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (net 1 "GND"))
)
;; D4 - BAT54 clamp diode to 3.3V (SOD-323)
(footprint "Diode_SMD:D_SOD-323"
(layer "F.Cu")
(uuid "00000000-0000-0000-0000-000000000066")
(at 24 74 90)
(property "Reference" "D4" (at 0 -1.5 0) (layer "F.SilkS") (effects (font (size 0.6 0.6) (thickness 0.12))))
(property "Value" "BAT54" (at 0 1.5 0) (layer "F.Fab") (effects (font (size 0.6 0.6) (thickness 0.12))))
(pad "1" smd rect (at -1.15 0) (size 0.6 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (net 3 "+3.3V"))
(pad "2" smd rect (at 1.15 0) (size 0.6 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (net 10 "RET_DIV"))
)
;; ============================================
;; SILKSCREEN LABELS
;; ============================================
(gr_text "SN-L00 v0.1"
(at 14 98 0)
(layer "F.SilkS")
(uuid "title-text")
(effects (font (size 1.2 1.2) (thickness 0.2)) (justify center))
)
(gr_text "SubModular"
(at 14 2 0)
(layer "F.SilkS")
(uuid "company-text")
(effects (font (size 0.8 0.8) (thickness 0.15)) (justify center))
)
(gr_text "TRIG"
(at 7 77 0)
(layer "F.SilkS")
(uuid "trig-label")
(effects (font (size 0.8 0.8) (thickness 0.15)) (justify center))
)
(gr_text "RETURN"
(at 21 77 0)
(layer "F.SilkS")
(uuid "return-label")
(effects (font (size 0.8 0.8) (thickness 0.15)) (justify center))
)
(gr_text "SN-L00"
(at 14 50 0)
(layer "B.SilkS")
(uuid "back-title")
(effects (font (size 1.5 1.5) (thickness 0.2)) (justify center mirror))
)
(gr_text "git.sub-net.at/submodular/SN-L00"
(at 14 55 0)
(layer "B.SilkS")
(uuid "back-url")
(effects (font (size 0.6 0.6) (thickness 0.12)) (justify center mirror))
)
;; ============================================
;; GROUND ZONE (Back copper)
;; ============================================
(zone
(net 1)
(net_name "GND")
(layer "B.Cu")
(uuid "gnd-zone-back")
(hatch edge 0.5)
(connect_pads (clearance 0.3))
(min_thickness 0.25)
(fill yes (thermal_gap 0.5) (thermal_bridge_width 0.5))
(polygon
(pts
(xy 0 0)
(xy 28 0)
(xy 28 100)
(xy 0 100)
)
)
)
;; ============================================
;; GROUND ZONE (Front copper - partial)
;; ============================================
(zone
(net 1)
(net_name "GND")
(layer "F.Cu")
(uuid "gnd-zone-front")
(hatch edge 0.5)
(connect_pads (clearance 0.3))
(min_thickness 0.25)
(fill yes (thermal_gap 0.5) (thermal_bridge_width 0.5))
(polygon
(pts
(xy 0 0)
(xy 28 0)
(xy 28 100)
(xy 0 100)
)
)
)
)
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