main
Rithesh03 Update 3: PCB design completed - routed board, manufacturing package (prototype, do not order yet), WLED guide, final checklist, Hydrogen feedback 1ed072d 13d ago
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184
(kicad_sch
  (version 20230121)
  (generator eeschema)
  (uuid "673df0c3-6c55-5850-8c54-87a7ea187cfd")
  (paper "A4")
  (title_block
    (title "LED signal driver (3.3 V -> 5 V)")
    (date "2026-09-23")
    (rev "0.1 (prototype)")
    (company "RITHESH LED Display")
    (comment 1 "74AHCT1G125: 3.3 V -> 5 V LED data"))
  (lib_symbols
    (symbol "74xGxx:74AHCT1G125"
      (in_bom yes)
      (on_board yes)
      (property "Reference" "U"
        (at -2.54 3.81 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Value" "74AHCT1G125"
        (at 0 -3.81 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Footprint" ""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" "http://www.ti.com/lit/sg/scyt129e/scyt129e.pdf"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "Single Gate Buff Tri-State LVC CMOS"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "Single Buffer Gate Tri-State, Low-Voltage CMOS"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_fp_filters" "SOT* SG-*"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "74AHCT1G125_0_1"
        (polyline
          (pts
            (xy -7.62 6.35)
            (xy -7.62 -6.35)
            (xy 5.08 0)
            (xy -7.62 6.35))
          (stroke
            (width 0.254)
            (type default))
          (fill
            (type background))))
      (symbol "74AHCT1G125_1_1"
        (pin input inverted
          (at 0 10.16 270)
          (length 7.62)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin input line
          (at -15.24 0 0)
          (length 7.62)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "2"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin power_in line
          (at -5.08 -10.16 90)
          (length 5.08)
          (name "GND"
            (effects
              (font
                (size 1.27 1.27))))
          (number "3"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin tri_state line
          (at 12.7 0 180)
          (length 7.62)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "4"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin power_in line
          (at -5.08 10.16 270)
          (length 5.08)
          (name "VCC"
            (effects
              (font
                (size 1.27 1.27))))
          (number "5"
            (effects
              (font
                (size 1.27 1.27)))))))
    (symbol "power:GND"
      (power)
      (pin_names
        (offset 0))
      (in_bom yes)
      (on_board yes)
      (property "Reference" "#PWR"
        (at 0 -6.35 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Value" "GND"
        (at 0 -3.81 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Footprint" ""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" ""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "global power"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "Power symbol creates a global label with name \"GND\" , ground"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "GND_0_1"
        (polyline
          (pts
            (xy 0 0)
            (xy 0 -1.27)
            (xy 1.27 -1.27)
            (xy 0 -2.54)
            (xy -1.27 -1.27)
            (xy 0 -1.27))
          (stroke
            (width 0)
            (type default))
          (fill
            (type none))))
      (symbol "GND_1_1"
        (pin power_in line
          (at 0 0 270)
          (length 0)
          hide
          (name "GND"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27)))))))
    (symbol "power:+5V"
      (power)
      (pin_names
        (offset 0))
      (in_bom yes)
      (on_board yes)
      (property "Reference" "#PWR"
        (at 0 -3.81 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Value" "+5V"
        (at 0 3.556 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Footprint" ""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" ""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "global power"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "Power symbol creates a global label with name \"+5V\""
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "+5V_0_1"
        (polyline
          (pts
            (xy -0.762 1.27)
            (xy 0 2.54))
          (stroke
            (width 0)
            (type default))
          (fill
            (type none)))
        (polyline
          (pts
            (xy 0 0)
            (xy 0 2.54))
          (stroke
            (width 0)
            (type default))
          (fill
            (type none)))
        (polyline
          (pts
            (xy 0 2.54)
            (xy 0.762 1.27))
          (stroke
            (width 0)
            (type default))
          (fill
            (type none))))
      (symbol "+5V_1_1"
        (pin power_in line
          (at 0 0 90)
          (length 0)
          hide
          (name "+5V"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27)))))))
    (symbol "Device:R"
      (pin_numbers hide)
      (pin_names
        (offset 0))
      (in_bom yes)
      (on_board yes)
      (property "Reference" "R"
        (at 2.032 0 90)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Value" "R"
        (at 0 0 90)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Footprint" ""
        (at -1.778 0 90)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" "~"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "R res resistor"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "Resistor"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_fp_filters" "R_*"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "R_0_1"
        (rectangle
          (start -1.016 -2.54)
          (end 1.016 2.54)
          (stroke
            (width 0.254)
            (type default))
          (fill
            (type none))))
      (symbol "R_1_1"
        (pin passive line
          (at 0 3.81 270)
          (length 1.27)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin passive line
          (at 0 -3.81 90)
          (length 1.27)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "2"
            (effects
              (font
                (size 1.27 1.27)))))))
    (symbol "Device:C"
      (pin_numbers hide)
      (pin_names
        (offset 0.254))
      (in_bom yes)
      (on_board yes)
      (property "Reference" "C"
        (at 0.635 2.54 0)
        (effects
          (font
            (size 1.27 1.27))
          (justify left)))
      (property "Value" "C"
        (at 0.635 -2.54 0)
        (effects
          (font
            (size 1.27 1.27))
          (justify left)))
      (property "Footprint" ""
        (at 0.9652 -3.81 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" "~"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "cap capacitor"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "Unpolarized capacitor"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_fp_filters" "C_*"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "C_0_1"
        (polyline
          (pts
            (xy -2.032 -0.762)
            (xy 2.032 -0.762))
          (stroke
            (width 0.508)
            (type default))
          (fill
            (type none)))
        (polyline
          (pts
            (xy -2.032 0.762)
            (xy 2.032 0.762))
          (stroke
            (width 0.508)
            (type default))
          (fill
            (type none))))
      (symbol "C_1_1"
        (pin passive line
          (at 0 3.81 270)
          (length 2.794)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27)))))
        (pin passive line
          (at 0 -3.81 90)
          (length 2.794)
          (name "~"
            (effects
              (font
                (size 1.27 1.27))))
          (number "2"
            (effects
              (font
                (size 1.27 1.27)))))))
    (symbol "Connector:TestPoint"
      (pin_numbers hide)
      (pin_names
        (offset 0.762)
        hide)
      (in_bom yes)
      (on_board yes)
      (property "Reference" "TP"
        (at 0 6.858 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Value" "TestPoint"
        (at 0 5.08 0)
        (effects
          (font
            (size 1.27 1.27))))
      (property "Footprint" ""
        (at 5.08 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "Datasheet" "~"
        (at 5.08 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_keywords" "test point tp"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_description" "test point"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (property "ki_fp_filters" "Pin* Test*"
        (at 0 0 0)
        (effects
          (font
            (size 1.27 1.27))
          hide))
      (symbol "TestPoint_0_1"
        (circle
          (center 0 3.302)
          (radius 0.762)
          (stroke
            (width 0)
            (type default))
          (fill
            (type none))))
      (symbol "TestPoint_1_1"
        (pin passive line
          (at 0 0 90)
          (length 2.54)
          (name "1"
            (effects
              (font
                (size 1.27 1.27))))
          (number "1"
            (effects
              (font
                (size 1.27 1.27))))))))
  (rectangle
    (start 15 25)
    (end 280 150)
    (stroke
      (width 0.3)
      (type dash))
    (fill
      (type none))
    (uuid "73039c9f-e4d4-5722-bd63-7f38d3d441e9"))
  (text "LED data level shifter"
    (at 17 27 0)
    (effects
      (font
        (size 2.5 2.5)
        bold)
      (justify left top))
    (uuid "3bd8e27e-6df1-5004-80f8-90f565b559d2"))
  (wire
    (pts
      (xy 139.7 74.93)
      (xy 139.7 72.39))
    (stroke
      (width 0)
      (type default))
    (uuid "fdc545a5-eb3a-5882-8a0a-8875ec758119"))
  (symbol
    (lib_id "power:GND")
    (at 139.7 72.39 180)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "8daa91f1-3e45-5136-8d32-355db78267db")
    (property "Reference" "#PWR055"
      (at 139.7 71.12 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "GND"
      (at 140.97 68.08 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 139.7 72.39 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 139.7 72.39 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "c0049e28-3f9b-5b95-a392-ab91b48a1c12"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR055")
          (unit 1)))))
  (wire
    (pts
      (xy 124.46 85.09)
      (xy 121.92 85.09))
    (stroke
      (width 0)
      (type default))
    (uuid "9cd98cee-ec19-5d33-bb14-9c7ee8e6be5e"))
  (global_label "LED_DATA_3V3"
    (shape bidirectional)
    (at 121.92 85.09 180)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify right))
    (uuid "0a284f92-d2dd-5902-a383-45a7bc43779d")
    (property "Intersheetrefs" "${INTERSHEET_REFS}"
      (at 121.92 85.09 0)
      (effects
        (font
          (size 1.27 1.27))
        hide)))
  (wire
    (pts
      (xy 134.62 95.25)
      (xy 134.62 97.79))
    (stroke
      (width 0)
      (type default))
    (uuid "705aaf88-f48c-5448-a6b5-5979bbccd410"))
  (symbol
    (lib_id "power:GND")
    (at 134.62 97.79 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "b5a23011-1c5c-524f-b9f2-a73ff4b9b4ac")
    (property "Reference" "#PWR056"
      (at 134.62 99.06 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "GND"
      (at 134.62 102.87 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 134.62 97.79 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 134.62 97.79 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "c53d771e-e551-554a-8b45-33dc858152d4"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR056")
          (unit 1)))))
  (wire
    (pts
      (xy 152.4 85.09)
      (xy 154.94 85.09))
    (stroke
      (width 0)
      (type default))
    (uuid "62cda0dc-b78d-5c3f-959e-cea994e6cb6d"))
  (label "LED_DATA_5V"
    (at 154.94 85.09 0)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify left bottom))
    (uuid "79e34213-986a-5fb9-8974-81c56bc14936"))
  (wire
    (pts
      (xy 134.62 74.93)
      (xy 134.62 72.39))
    (stroke
      (width 0)
      (type default))
    (uuid "991c06e1-a572-5f4c-8737-aa718f2645bd"))
  (symbol
    (lib_id "power:+5V")
    (at 134.62 72.39 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "ac6c2c75-f594-5bd1-abc6-dd41a8e867d5")
    (property "Reference" "#PWR057"
      (at 134.62 71.12 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "+5V"
      (at 135.89 68.08 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 134.62 72.39 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 134.62 72.39 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "12abc7fb-99b5-58de-958d-970ef754d485"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR057")
          (unit 1)))))
  (symbol
    (lib_id "74xGxx:74AHCT1G125")
    (at 139.7 85.09 0)
    (unit 1)
    (in_bom yes)
    (on_board yes)
    (dnp no)
    (uuid "f67a85a3-0447-5c40-9e36-b8c121c6711c")
    (property "Reference" "U5"
      (at 143 70 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Value" "74AHCT1G125"
      (at 143 98 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5"
      (at 139.7 85.09 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 139.7 85.09 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "LCSC" "C7484"
      (at 139.7 85.09 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "MPN" "SN74AHCT1G125DBVR"
      (at 139.7 85.09 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "2d0d6289-138a-5142-9f17-9c13de0bfac3"))
    (pin "2"
      (uuid "deec4c40-d08d-506c-bc73-145f7eb13fcd"))
    (pin "3"
      (uuid "44e93ca0-8905-59ad-8840-f2c75bd594d5"))
    (pin "4"
      (uuid "67786d55-7cf3-5eba-89d4-b7901333b0cc"))
    (pin "5"
      (uuid "11374e98-f934-5147-a6c3-faf0e46eca0c"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "U5")
          (unit 1)))))
  (wire
    (pts
      (xy 100.33 92.71)
      (xy 100.33 90.17))
    (stroke
      (width 0)
      (type default))
    (uuid "f49eb1ce-38fa-53b3-a3b8-8dec302f5d2c"))
  (global_label "LED_DATA_3V3"
    (shape bidirectional)
    (at 100.33 90.17 90)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify left))
    (uuid "a40b5c1c-dd1c-5eb7-81ad-60fcd25d5270")
    (property "Intersheetrefs" "${INTERSHEET_REFS}"
      (at 100.33 90.17 0)
      (effects
        (font
          (size 1.27 1.27))
        hide)))
  (wire
    (pts
      (xy 100.33 100.33)
      (xy 100.33 102.87))
    (stroke
      (width 0)
      (type default))
    (uuid "408e2208-5907-5196-8a3c-d83eaea243db"))
  (symbol
    (lib_id "power:GND")
    (at 100.33 102.87 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "c34ba83a-f440-55bd-8e0e-50faba0cd225")
    (property "Reference" "#PWR058"
      (at 100.33 104.14 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "GND"
      (at 100.33 107.95 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 100.33 102.87 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 100.33 102.87 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "42b4e939-2534-5bc0-932b-437d50252f1c"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR058")
          (unit 1)))))
  (symbol
    (lib_id "Device:R")
    (at 100.33 96.52 0)
    (unit 1)
    (in_bom yes)
    (on_board yes)
    (dnp no)
    (uuid "f97000df-3b78-54db-bb33-5ab2c85d9f41")
    (property "Reference" "R12"
      (at 102.87 95.25 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Value" "10k"
      (at 102.87 97.79 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" "Resistor_SMD:R_0402_1005Metric"
      (at 100.33 96.52 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 100.33 96.52 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "LCSC" "C25744"
      (at 100.33 96.52 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "84209e23-8643-5945-af45-14b9f39c1824"))
    (pin "2"
      (uuid "0c54f0ea-c918-5279-95f7-3df1200d4870"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "R12")
          (unit 1)))))
  (wire
    (pts
      (xy 115.57 55.88)
      (xy 115.57 53.34))
    (stroke
      (width 0)
      (type default))
    (uuid "dce17d49-2060-5bf5-9499-d70b5aae9841"))
  (symbol
    (lib_id "power:+5V")
    (at 115.57 53.34 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "21669d76-343a-5e65-b28f-5c2cfe2f2b3d")
    (property "Reference" "#PWR059"
      (at 115.57 52.07 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "+5V"
      (at 116.84 49.03 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 115.57 53.34 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 115.57 53.34 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "55bdaea2-f26d-53b3-8822-a6e111a84dcd"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR059")
          (unit 1)))))
  (wire
    (pts
      (xy 115.57 63.5)
      (xy 115.57 66.04))
    (stroke
      (width 0)
      (type default))
    (uuid "306e495b-cbbd-57f2-a595-ee8d4ab37417"))
  (symbol
    (lib_id "power:GND")
    (at 115.57 66.04 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "092fda2e-beae-53bb-8365-6da7adbfcaca")
    (property "Reference" "#PWR060"
      (at 115.57 67.31 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)
        hide))
    (property "Value" "GND"
      (at 115.57 71.12 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" ""
      (at 115.57 66.04 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 115.57 66.04 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "dd8d63e9-1760-5437-88ab-a4925a237711"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "#PWR060")
          (unit 1)))))
  (symbol
    (lib_id "Device:C")
    (at 115.57 59.69 0)
    (unit 1)
    (in_bom yes)
    (on_board yes)
    (dnp no)
    (uuid "3c8bed32-8f89-5d19-806a-59edb794cc75")
    (property "Reference" "C12"
      (at 118.11 58.42 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Value" "100nF"
      (at 118.11 60.96 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" "Capacitor_SMD:C_0402_1005Metric"
      (at 115.57 59.69 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 115.57 59.69 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "LCSC" "C1525"
      (at 115.57 59.69 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "1e6c61be-fcad-509f-b3c3-eaf2712dc51a"))
    (pin "2"
      (uuid "be568b46-92c2-5603-add5-39f56b0cc4e4"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "C12")
          (unit 1)))))
  (wire
    (pts
      (xy 175.26 96.52)
      (xy 175.26 93.98))
    (stroke
      (width 0)
      (type default))
    (uuid "cc535129-a594-53a8-b4be-ac263696726b"))
  (label "LED_DATA_5V"
    (at 175.26 93.98 90)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify left bottom))
    (uuid "937616ed-a0e5-575b-8fd7-3cf70f14a33e"))
  (wire
    (pts
      (xy 175.26 104.14)
      (xy 175.26 106.68))
    (stroke
      (width 0)
      (type default))
    (uuid "7885f52e-4231-5ff5-bbe6-b185f758851a"))
  (global_label "LED_DIN"
    (shape bidirectional)
    (at 175.26 106.68 270)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify right))
    (uuid "7314af5c-ca07-5585-8792-f11b99c54121")
    (property "Intersheetrefs" "${INTERSHEET_REFS}"
      (at 175.26 106.68 0)
      (effects
        (font
          (size 1.27 1.27))
        hide)))
  (symbol
    (lib_id "Device:R")
    (at 175.26 100.33 0)
    (unit 1)
    (in_bom yes)
    (on_board yes)
    (dnp no)
    (uuid "b468a02c-9604-5e2e-92eb-6223c1308300")
    (property "Reference" "R13"
      (at 177.8 99.06 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Value" "33R"
      (at 177.8 101.6 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" "Resistor_SMD:R_0402_1005Metric"
      (at 175.26 100.33 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 175.26 100.33 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "LCSC" "C25105"
      (at 175.26 100.33 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "d2d1bf96-120e-5f26-bb2e-ababd2d27bae"))
    (pin "2"
      (uuid "219408f1-3ccd-5406-95c9-8ead1a2890ba"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "R13")
          (unit 1)))))
  (wire
    (pts
      (xy 204.47 87.63)
      (xy 204.47 90.17))
    (stroke
      (width 0)
      (type default))
    (uuid "67a3804a-0e31-5265-b05c-81edcaed915d"))
  (global_label "LED_DIN"
    (shape bidirectional)
    (at 204.47 90.17 270)
    (fields_autoplaced)
    (effects
      (font
        (size 1.27 1.27))
      (justify right))
    (uuid "20975d79-0bdd-533b-bf4e-c2ad13af2021")
    (property "Intersheetrefs" "${INTERSHEET_REFS}"
      (at 204.47 90.17 0)
      (effects
        (font
          (size 1.27 1.27))
        hide)))
  (symbol
    (lib_id "Connector:TestPoint")
    (at 204.47 87.63 0)
    (unit 1)
    (in_bom no)
    (on_board yes)
    (dnp no)
    (uuid "d87fb380-2817-5cad-aebf-9b5d3676b55f")
    (property "Reference" "TP6"
      (at 206.27 84.19 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Value" "LED_DIN"
      (at 206.27 86.2 0)
      (effects
        (font
          (size 1.27 1.27))
        (justify left)))
    (property "Footprint" "TestPoint:TestPoint_Pad_D1.5mm"
      (at 204.47 87.63 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (property "Datasheet" "~"
      (at 204.47 87.63 0)
      (effects
        (font
          (size 1.27 1.27))
        hide))
    (pin "1"
      (uuid "ed16c427-9b73-5302-8886-77c53bd9bf3d"))
    (instances
      (project "rithesh-led-display"
        (path "/4ab31b2f-bda9-564b-ad22-65e9eb54c1ea/836d1f00-a2f0-5fd0-8322-30c8c59de048"
          (reference "TP6")
          (unit 1)))))
  (text "U5 runs from +5V, so its output is a clean 5 V signal for the LEDs.\nPin 1 (~OE, enable) is tied to GND = always on.\nR12 10k pull-down: holds the signal low while the ESP32 starts,\nso the LEDs do not flash random colors at plug-in.\nR13 33R: small series resistor that damps ringing on the data line\n(standard practice, added in the schematic step).\nC12 100nF: local decoupling for U5.\nTP6: scope the LED timing here (timing pre-check / prototype test)."
    (at 18 122 0)
    (effects
      (font
        (size 1.5 1.5))
      (justify left top))
    (uuid "de3dc9c7-6185-5d9c-88f6-2519286d38e3")))