Flux PCB Help

flux

Manufacturing checks passed with 0 airwires and no blocking DRC errors. Exported files:
  • knock-controller-gerbers.zip

  • knock-controller-bom.csv

    DesignatorQuantityElement UIDsPart UIDSpecificationPart TypeDomainComplianceJLCPCB Part ClassOperating VoltageOperating TemperatureReliability Target (MTBF)RoleRole DetailsSoftwareConnector TypeConnector GenderConnector PitchConnector PositionsConnector RowsPower RequirementsConnectivityHuman InterfaceManufacturing Quantity TargetManufacturer Part NumberLCSC Part NumberDigi-Key Part NumberMouser Part NumberArrow Part NumberVerical Part NumberTME Part NumberHQonline Part NumberAllow SubstitutesManufacturer NamePrice Change ThresholdLead Time Change ThresholdPricing Notification FrequencyPreferred DistributorsDatasheet URLMachine Datasheet URLImplementation DetailsLicensePackage or Case CodePin TypeVoltageVoltage RatingForward VoltageReverse VoltageMax Reverse VoltageDiode TypeMountIntegrated Circuit TypeBreakdown VoltageThreshold VoltageMax Output VoltageMin Output VoltageInitial Voltage on ResetResistanceResistor TypeGate ResistanceOn ResistanceOff ResistanceToleranceCapacitanceCapacitor TypePowerPower RatingCurrentMax CurrentDesired Temperature RiseCurrent RatingLeakage CurrentSaturation CurrentInitial Current on ResetTrigger CurrentHolding CurrentFrequencyLogic FunctionInductanceInductor ShieldingInductor TypeBetaDrain to Source VoltageContinuous Drain CurrentTransistor TypeGainCoupling CoefficientRatioReference Design URLPricePurchase UrlProduct Info UrlProduct Image UrlSubstitute Manufacturer Part NumberKiCAD Library ReferenceExclude from PCBControlled ImpedanceControlled Impedance TolerancePN Skew MaxPair to Pair Skew MaxPin DelayControlled Impedance PairBus GroupPair RolePin RoleBus TypeSymbol StyleSymbol SizeNet TypePackageDesignator PrefixFunctional GroupPitchGenderRowsPositionsExclude from BOMThrow Configuration
    C116e61b646-d47e-4e37-84d1-fa055d9c65d946707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 47uF, SMD_1210_3225MetricNon-Polarized CapacitorBulk47 uF protected 5 V rail bulk capacitor; allow 1210 footprint for DC-bias margin10V%47uFCeramicSMD_1210_3225MetricCPower Entry
    C2,C21,C22,C23,C3518d16db8-6f04-43cb-a47a-f7bc7c954b84,2a91ddaa-1be1-4485-adc3-a7bad8e54355,91692775-9bcd-4f4a-8f50-a3b132d70c36,acf76591-d17d-4b97-9409-c9e7c67228ce,cfafa94f-d1cc-41d4-8e6a-5bf09c08b29b46707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 100nF, SMD_0603_1608MetricNon-Polarized CapacitorDecoupling,FilteringU1 MCP6004 VDD local 100 nF bypass; place within 2 mm of pin 4,U2 ATtiny1616 VDD local 100 nF bypass at pins 1/20,Calibration ADC wiper filter capacitor10V%100nFCeramicSMD_0603_1608MetricCPower Entry,Calibration
    C5172ae56bc-2a60-457e-928b-0bca9c15900a46707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 10uF, SMD_0805_2012MetricNon-Polarized CapacitorFilteringMid-rail divider low-noise filter10V%10uFCeramicSMD_0805_2012MetricCVoltage Reference
    C10,C11,C16,C1740a4f323c-23b8-4102-ad34-1afde028ec37,34ef9d8b-7c60-4159-808a-b3038a3482a6,491a2af3-bc41-424e-bdaf-9fb27483d2eb,f522ca3c-a366-406d-b5f4-c8c38d3ce0b746707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 47pF, SMD_0603_1608MetricNon-Polarized CapacitorFilteringCH1 7.20 kHz low-pass C0G/NP0 frequency capacitor,CH2 7.20 kHz low-pass C0G/NP0 frequency capacitor50V%47pFCeramicSMD_0603_1608MetricCSensor Channel 1,Sensor Channel 2
    C12,C13,C6,C74411d9394-a8c4-44dd-bf8d-a807f7ffebdd,7647e5d2-ec9a-409b-bc8f-2a48fe9787e2,91a7e854-5eb9-467e-b67d-af435569d98c,ba840ee0-0786-43e2-98a5-246a997f827246707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 4.7nF, SMD_0805_2012MetricNon-Polarized CapacitorCouplingCH2 positive lead 4.7 nF C0G/NP0 AC coupling,CH2 negative lead 4.7 nF C0G/NP0 AC coupling,CH1 negative lead 4.7 nF C0G/NP0 AC coupling,CH1 positive lead 4.7 nF C0G/NP0 AC coupling50V%4.7nFCeramicSMD_0805_2012MetricCSensor Channel 2,Sensor Channel 1
    C14,C15,C8,C9408ad647d-8d58-4c09-a3a7-e126f3b0593e,5a1ac727-32da-40d1-9054-c5b0b9b59c4a,734a6c99-e9b3-4551-b0ff-2a6e843ed27f,fe4dc76e-486c-4735-a8db-99bf10bd6c7946707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 220pF, SMD_0603_1608MetricNon-Polarized CapacitorFilteringCH1 7.23 kHz high-pass C0G/NP0 frequency capacitor,CH2 7.23 kHz high-pass C0G/NP0 frequency capacitor50V%220pFCeramicSMD_0603_1608MetricCSensor Channel 1,Sensor Channel 2
    C18,C1920734564a-7b97-4a43-943f-83a0e228923f,427e7648-7d84-4084-afda-d8d518548d7546707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 1nF, SMD_0603_1608MetricNon-Polarized CapacitorFilteringADC input reservoir/anti-RF capacitor10V%1nFCeramicSMD_0603_1608MetricCADC Interface
    C201c9eb30a3-c538-436f-a565-35f3459bf15746707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 10nF, SMD_0603_1608MetricNon-Polarized CapacitorFilteringRPM input deglitch capacitor; with R24+R25 and R26 gives about 1.24 kHz cutoff and 128 us time constant10V%10nFCeramicSMD_0603_1608MetricCRPM Input
    C24,C25,C431d588ef6-b5eb-4624-b865-6a4f58a486e2,7366c42d-a5d7-4fab-9a58-6238a5d9d260,ac88cb2b-0e37-4f52-ae48-30ff2ea9350946707925-236f-106b-e676-afa2757aa1d6Non-Polarized Capacitor, 1uF, SMD_0805_2012MetricNon-Polarized CapacitorFiltering,BulkPWM-to-analog reconstruction filter capacitor,Local analog 5 V bulk capacitor10V%1uFCeramicSMD_0805_2012MetricCAnalog Output,Power Entry
    D1,D2,D3,D4,D5,D662fe18a8a-5777-4c04-820a-a65b6e5014e9,49b9a79a-aedf-4962-a2cf-94af9c037ba1,6670050a-b317-426d-9a18-037ddd41128e,8e6ed777-ab82-4e49-a4a3-80623fcf1dba,9ece9378-a419-4887-a65f-08381540d880,a9c9446e-dda9-4d35-a89b-f66ca4ad8731ba6d63f0-6fb5-42f5-8cc4-5cded74df808ESD Protection Devices, SOD-323_L1.7-W1.3-LS2.5-BIESD Protection DevicesExtended PartProtection5 V low-capacitance bidirectional ESD protectionPESD5V0S1BAC2827694TECH PUBLIC(台舟)https://creativecommons.org/licenses/by/4.0/SOD-323_L1.7-W1.3-LS2.5-BI0.8V5VTVS DiodeDExternal Interface Protection
    D7,D820541e863-dcd9-4daa-9dbe-b9a51888ca9a,46504fad-0211-4aa1-8048-61c27c6ef6af6200898e-aa2a-43f5-bb99-23055d0da5edSchottky Barrier Diodes (SBD), SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BRSchottky Barrier Diodes (SBD)Extended PartProtection,ClampingRPM input clamp to local 5 V and GND rails,ECU output rail clamp; pin 3 signal, pin 1 GND, pin 2 +5 VBAT54S-TPC194858MCC(美微科)SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BRDRPM Input,Analog Output
    J1,J2,J3,J4,J5500d1bd2f-6c82-4ea7-8cf1-fe6b206829e4,2466980d-7b6c-46c9-8401-15905131b329,8f1e0d19-76a3-4847-bbb4-e9e981e95a63,98beab84-d6c3-44e1-aaa3-550dd8e2ee20,ec9072f2-4708-4cca-90b6-0875d23d2ecb015f4743-44ed-4b3a-9d98-69469d9853cdWire To Board / Wire To Wire Connector, CONN-TH_B2B-XH-A-LF-SNWire To Board / Wire To Wire ConnectorExtended PartConnectorJST XH 2-pin external harness interfaceWire To Board / Wire To Wire ConnectorB2B-XH-A(LF)(SN)C158012JSTCONN-TH_B2B-XH-A-LF-SNCNExternal Connectors2.5mmMale12
    J616ff319bd-6fcf-4511-85d7-373a5bfa6112195a1e6d-d602-fa94-8dd2-8b35fb4549dcConnectorConnectorProgrammingAVR UPDI programming and debug interface61200621621Würth ElektronikJProgrammingfalse
    R1,R11,R14,R2,R21,R24,R27,R33,R4,R61021bbfde6-e670-4052-9c65-5b22d8e602f7,38a4336b-b264-46da-8490-89d08bd73d55,59a69bba-3234-43f3-b990-f94ea7263d07,663027ce-6e4a-48c6-b520-824d396c2758,80b11c8c-a3b5-4fcb-924f-285b0b682980,82e06434-7f84-49c5-83ba-aacf86b2b44c,8897cf8e-dfef-4973-9886-3263b2ed1722,90e690b8-5c2e-4792-a968-a143ed3b9604,97bb6f18-bcff-4436-be2b-6d84abc5e05d,b66a6f2a-9e03-45c2-870e-525cf77505b1b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 10kΩ, SMD_0603_1608MetricResistorVoltage Division,Current Limiting,Pull Up / Down,Filtering2.5 V mid-rail divider,Sensor 2 lead transient current limiting,Channel enable input pull-up,PWM reconstruction first pole,Sensor 1 lead transient current limiting,Tach connector series protection; limits current into BAT54S rail clamp for 5 V or higher legacy tach pulsesV10kΩ1%SMD_0603_1608MetricRVoltage Reference,Sensor Channel 2,User Selection,Analog Output,Sensor Channel 1,RPM Input
    R313f702b62-9d35-43ca-af18-68b254e6264eb67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 4.7Ω, SMD_0603_1608MetricResistorCurrent Limiting5 V input series EMI and transient current limiterV4.7Ω1%0.125WSMD_0603_1608MetricRPower Entry
    R10,R15,R18,R26,R75077bdbac-a216-45de-a89b-632690b5eb9d,19a4b3e4-e868-4423-885b-c3875d244c8d,92bc97ac-2102-4cf1-910d-43dcfdb31935,a2b6f988-e1de-4ce2-b88c-22c6591f3073,cf895688-c58e-44d5-bb11-e7037e34a013b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 100kΩ, SMD_0603_1608MetricResistorFiltering,Pull Up / DownCH2 matched differential filter input resistor,CH1 matched differential filter input resistor,RPM input pull-downV100kΩ1%SMD_0603_1608MetricRSensor Channel 2,Sensor Channel 1,RPM Input
    R12,R17,R20,R9414a4f99f-9173-4235-8d6d-8a2f39fa0473,41822c29-5cbf-4381-bab8-ec8a4f332f52,9868a845-59e3-42fc-96a5-920dfd697d82,cd80902c-93fc-43eb-828e-a50f83500105b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 470kΩ, SMD_0603_1608MetricResistorFeedbackCH1 matched differential filter feedback/reference resistor,CH2 matched differential filter feedback/reference resistorV470kΩ1%SMD_0603_1608MetricRSensor Channel 1,Sensor Channel 2
    R13,R16,R5,R849f764def-50c3-434b-a90f-51c1e2722fb3,dc850b46-5b42-4948-9d21-7dbb1a716b91,ef08f995-aa80-46a5-92f9-bd2e8761c251,f289b934-d113-4c58-84e2-840ce456d366b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 1MΩ, SMD_0603_1608MetricResistorBiasingSensor 2 lead bias to buffered 2.5 V reference,Sensor 1 lead bias to buffered 2.5 V referenceV1MΩ1%SMD_0603_1608MetricRSensor Channel 2,Sensor Channel 1
    R19,R22,R25,R3245e82b5e1-b537-4051-a5b8-8650f42a438a,616b89bb-9dad-4fb8-b5cc-ce90b7f0d6a7,86497a95-b585-4e00-9c44-fa4eb91ece23,d1c856d3-70a2-4719-a73d-ebdbbdb2d739b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 4.7kΩ, SMD_0603_1608MetricResistorPull Up / Down,FilteringPWM startup/fault pull-down,RPM input series filter/isolation resistor; total tach source path is R24+R25=14.7 kOhm,ADC source isolation and RC filter resistorV4.7kΩ1%SMD_0603_1608MetricRAnalog Output,RPM Input,ADC Interface
    R23,R28,R29,R3646947fcef-2563-4b7c-a468-5d0fb50c9773,6b166438-9d06-42f7-8d3b-88c5df05988f,8cd8842f-57ca-40ae-9a3f-b725720da2ac,b6cf8b7d-1d88-4041-8077-d6d37f08420cb67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 1kΩ, SMD_0603_1608MetricResistorCurrent LimitingCalibration wiper ADC isolation,ECU analog output series protection and capacitive-load isolationV1kΩ1%SMD_0603_1608MetricRCalibration,Analog Output
    R3418dcffde3-8e14-434d-8072-c11afc7f1ff5b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 40.2kΩ, SMD_0603_1608MetricResistorSignal Mixing / DetectionPWM reconstruction second resistor; R33+R34=50.2 kOhm against R35=200 kOhm maps 0-100% duty to 0.5016-4.4984 VV40.2kΩ1%SMD_0603_1608MetricRAnalog Output
    R35153851b3b-6040-4e4e-ac1c-7a01ad38d3cbb67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 200kΩ, SMD_0603_1608MetricResistorSignal Mixing / Detection2.5 V reference weighting; with R33+R34 produces 0.5016 V quiet/startup and 4.4984 V full-scale endpointsV200kΩ1%SMD_0603_1608MetricRAnalog Output
    R371df768fa1-cd85-4dc8-80a3-2a4a6749bb0bb67f50a9-ae5e-10ea-9c3c-d377e2ab3b2dResistor, 470Ω, SMD_0603_1608MetricResistorCurrent LimitingUPDI programmer line isolationV470Ω1%SMD_0603_1608MetricRProgramming
    RV1,RV2,RV335138c9fa-a350-4491-b035-8b39d0afbe3b,5a238dfa-2f23-4581-b6f6-eca0234d413a,65e1bd8e-3d70-4e7e-9cd3-537f13c9064b6661070d-5ecf-4ec1-8f0a-3c45f4c069cdVariable Resistors/Potentiometers, RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BSVariable Resistors/PotentiometersExtended PartCalibration10 kOhm sealed user trim control3386P-1-103LFC116281BOURNSRES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BSRCalibration
    SW115a8f9565-6e30-4506-96d3-c2ca2aa76d74ec47c653-3edd-4f31-89c4-46c7c4cad25fDIP Switches, SW-SMD_DSHP02TSGERDIP SwitchesExtended Part-40 to +85℃ConfigurationTwo SPST channel-enable switchesDSHP02TSGERC367376YESW-SMD_DSHP02TSGERSWUser SelectionSPST
    U119ba01ae2-4d5e-499d-b92f-8e73aca896de00aadda5-2eba-424a-9a60-675feeaea541Operational Amplifier (OP-AMP), SOIC127P600X175-14NOperational Amplifier (OP-AMP)Analog Processing5 V quad RRIO amplifier: VREF buffer, CH1/CH2 differential band-pass, output bufferMCP6004T-I/SLMicrochip Technologyhttps://creativecommons.org/licenses/by/4.0/SOIC127P600X175-14NICAnalog Processing
    U21d37f4a96-b430-4fc5-a58d-d32b350ef917f20e338b-23fb-4828-bd68-766ecfd7336fMicrocontroller, SOIC-20_L13.0-W7.6-P1.27-LS10.3-BLMicrocontrollerExtended PartMicrocontrollerATtiny1616 5 V MCU: PA4/PA5 analog channels, PA6/PA7/PB5 calibration ADCs, PB4 tach edge input, PB0 TCA0 WO0 PWM, PB2/PB3 channel selects, PA0 UPDIATTINY1616-SFRC145558MICROCHIP(美国微芯)SOIC-20_L13.0-W7.6-P1.27-LS10.3-BLUDigital Processing

  • knock-controller-bom-jlcpcb.csv

    CommentDesignatorFootprintJLCPCB Part #LCSC Part #
    Non-Polarized Capacitor 47uF SMD_1210_3225MetricC1
    Non-Polarized Capacitor 100nF SMD_0603_1608MetricC2, C21, C22, C23, C3
    Non-Polarized Capacitor 10uF SMD_0805_2012MetricC5
    Non-Polarized Capacitor 47pF SMD_0603_1608MetricC10, C11, C16, C17
    Non-Polarized Capacitor 4.7nF SMD_0805_2012MetricC12, C13, C6, C7
    Non-Polarized Capacitor 220pF SMD_0603_1608MetricC14, C15, C8, C9
    Non-Polarized Capacitor 1nF SMD_0603_1608MetricC18, C19
    Non-Polarized Capacitor 10nF SMD_0603_1608MetricC20
    Non-Polarized Capacitor 1uF SMD_0805_2012MetricC24, C25, C4
    PESD5V0S1BAD1, D2, D3, D4, D5, D6SOD-323_L1.7-W1.3-LS2.5-BIC2827694
    BAT54S-TPD7, D8SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BRC194858
    B2B-XH-A(LF)(SN)J1, J2, J3, J4, J5CONN-TH_B2B-XH-A-LF-SNC158012
    61200621621J6
    Resistor 10kΩ SMD_0603_1608MetricR1, R11, R14, R2, R21, R24, R27, R33, R4, R6
    Resistor 4.7Ω SMD_0603_1608MetricR3
    Resistor 100kΩ SMD_0603_1608MetricR10, R15, R18, R26, R7
    Resistor 470kΩ SMD_0603_1608MetricR12, R17, R20, R9
    Resistor 1MΩ SMD_0603_1608MetricR13, R16, R5, R8
    Resistor 4.7kΩ SMD_0603_1608MetricR19, R22, R25, R32
    Resistor 1kΩ SMD_0603_1608MetricR23, R28, R29, R36
    Resistor 40.2kΩ SMD_0603_1608MetricR34
    Resistor 200kΩ SMD_0603_1608MetricR35
    Resistor 470Ω SMD_0603_1608MetricR37
    3386P-1-103LFRV1, RV2, RV3RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BSC116281
    DSHP02TSGERSW1SW-SMD_DSHP02TSGERC367376
    MCP6004T-I/SLU1SOIC127P600X175-14N
    ATTINY1616-SFRU2SOIC-20_L13.0-W7.6-P1.27-LS10.3-BLC145558

  • knock-controller-pickplace-openpnp.csv

    RefValPackagePosXPosYRotSide
    C147uFSMD_1210_3225Metric-2mm39mm0Top
    C2100nFSMD_0603_1608Metric3.1mm-33.7mm0Top
    C3100nFSMD_0603_1608Metric7.3mm-1.1mm0Top
    C41uFSMD_0805_2012Metric2.8mm-30.5mm0Top
    C510uFSMD_0805_2012Metric1mm-28mm0Top
    C64.7nFSMD_0805_2012Metric-59mm-34mm0Top
    C74.7nFSMD_0805_2012Metric-59mm-40mm0Top
    C8220pFSMD_0603_1608Metric-45mm-34mm0Top
    C9220pFSMD_0603_1608Metric-45mm-40mm0Top
    C1047pFSMD_0603_1608Metric-31mm-34mm0Top
    C1147pFSMD_0603_1608Metric-31mm-40mm0Top
    C124.7nFSMD_0805_2012Metric-59mm-12mm0Top
    C134.7nFSMD_0805_2012Metric-59mm-18mm0Top
    C14220pFSMD_0603_1608Metric-45mm-12mm0Top
    C15220pFSMD_0603_1608Metric-45mm-18mm0Top
    C1647pFSMD_0603_1608Metric-31mm-12mm0Top
    C1747pFSMD_0603_1608Metric-31mm-18mm0Top
    C181nFSMD_0603_1608Metric12mm-16mm0Top
    C191nFSMD_0603_1608Metric20mm-12mm0Top
    C2010nFSMD_0603_1608Metric61mm29mm0Top
    C21100nFSMD_0603_1608Metric29mm24mm0Top
    C22100nFSMD_0603_1608Metric40mm9mm0Top
    C23100nFSMD_0603_1608Metric28mm0mm0Top
    C241uFSMD_0805_2012Metric52mm-21mm0Top
    C251uFSMD_0805_2012Metric64mm-28mm0Top
    D1SOD-323_L1.7-W1.3-LS2.5-BI-64mm-34mm0Top
    D2SOD-323_L1.7-W1.3-LS2.5-BI-64mm-40mm0Top
    D3SOD-323_L1.7-W1.3-LS2.5-BI-64mm-12mm0Top
    D4SOD-323_L1.7-W1.3-LS2.5-BI-64mm-18mm0Top
    D5SOD-323_L1.7-W1.3-LS2.5-BI-18mm40mm0Top
    D6SOD-323_L1.7-W1.3-LS2.5-BI70mm-21mm0Top
    D7SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR65mm29mm0Top
    D8SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR70mm-28mm0Top
    J1CONN-TH_B2B-XH-A-LF-SN-75.94mm-36mm90Top
    J2CONN-TH_B2B-XH-A-LF-SN-75.94mm-16mm90Top
    J3CONN-TH_B2B-XH-A-LF-SN-10mm45.94mm0Top
    J4CONN-TH_B2B-XH-A-LF-SN75.9399mm26mm270Top
    J5CONN-TH_B2B-XH-A-LF-SN75.9399mm-24mm270Top
    J616mm-45mm270Top
    R110kΩSMD_0603_1608Metric-3mm-31mm0Top
    R210kΩSMD_0603_1608Metric-69mm-40mm0Top
    R34.7ΩSMD_0603_1608Metric-10mm38mm0Top
    R410kΩSMD_0603_1608Metric-6mm-28mm0Top
    R51MΩSMD_0603_1608Metric-52mm-40mm0Top
    R610kΩSMD_0603_1608Metric-69mm-34mm0Top
    R7100kΩSMD_0603_1608Metric-38mm-40mm0Top
    R81MΩSMD_0603_1608Metric-52mm-34mm0Top
    R9470kΩSMD_0603_1608Metric-22mm-38mm0Top
    R10100kΩSMD_0603_1608Metric-38mm-34mm0Top
    R1110kΩSMD_0603_1608Metric-69mm-18mm0Top
    R12470kΩSMD_0603_1608Metric-22mm-32mm0Top
    R131MΩSMD_0603_1608Metric-52mm-18mm0Top
    R1410kΩSMD_0603_1608Metric-69mm-12mm0Top
    R15100kΩSMD_0603_1608Metric-38mm-18mm0Top
    R161MΩSMD_0603_1608Metric-52mm-12mm0Top
    R17470kΩSMD_0603_1608Metric-24mm-18mm0Top
    R18100kΩSMD_0603_1608Metric-38mm-12mm0Top
    R194.7kΩSMD_0603_1608Metric15mm-12mm0Top
    R20470kΩSMD_0603_1608Metric-24mm-12mm0Top
    R2110kΩSMD_0603_1608Metric25mm16mm0Top
    R224.7kΩSMD_0603_1608Metric7mm-16mm0Top
    R231kΩSMD_0603_1608Metric36mm5mm0Top
    R2410kΩSMD_0603_1608Metric69mm29mm0Top
    R254.7kΩSMD_0603_1608Metric65mm23mm0Top
    R26100kΩSMD_0603_1608Metric61mm23mm0Top
    R2710kΩSMD_0603_1608Metric25mm12mm0Top
    R281kΩSMD_0603_1608Metric26mm-7mm0Top
    R291kΩSMD_0603_1608Metric25mm22mm0Top
    R324.7kΩSMD_0603_1608Metric46mm-24mm0Top
    R3310kΩSMD_0603_1608Metric52mm-28mm0Top
    R3440.2kΩSMD_0603_1608Metric58mm-28mm0Top
    R35200kΩSMD_0603_1608Metric58mm-21mm0Top
    R361kΩSMD_0603_1608Metric64mm-21mm0Top
    R37470ΩSMD_0603_1608Metric26mm-43mm0Top
    RV1RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BS35mm17mm0Top
    RV2RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BS48mm5mm0Top
    RV3RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BS35mm-7mm0Top
    SW1SW-SMD_DSHP02TSGER35mm33mm0Top
    U1SOIC127P600X175-14N8.5569mm-33.6607mm0Top
    U2SOIC-20_L13.0-W7.6-P1.27-LS10.3-BL15.8831mm4.0013mm0Top

  • knock-controller-pickplace-jlcpcb.csv

    DesignatorLayerRotationMid XMid Y
    C1Top0-2mm39mm
    C2Top03.1mm-33.7mm
    C3Top07.3mm-1.1mm
    C4Top02.8mm-30.5mm
    C5Top01mm-28mm
    C6Top0-59mm-34mm
    C7Top0-59mm-40mm
    C8Top0-45mm-34mm
    C9Top0-45mm-40mm
    C10Top0-31mm-34mm
    C11Top0-31mm-40mm
    C12Top0-59mm-12mm
    C13Top0-59mm-18mm
    C14Top0-45mm-12mm
    C15Top0-45mm-18mm
    C16Top0-31mm-12mm
    C17Top0-31mm-18mm
    C18Top012mm-16mm
    C19Top020mm-12mm
    C20Top061mm29mm
    C21Top029mm24mm
    C22Top040mm9mm
    C23Top028mm0mm
    C24Top052mm-21mm
    C25Top064mm-28mm
    D1Top0-64mm-34mm
    D2Top0-64mm-40mm
    D3Top0-64mm-12mm
    D4Top0-64mm-18mm
    D5Top0-18mm40mm
    D6Top070mm-21mm
    D7Top065mm29mm
    D8Top070mm-28mm
    J1Top90-75.94mm-36mm
    J2Top90-75.94mm-16mm
    J3Top0-10mm45.94mm
    J4Top27075.9399mm26mm
    J5Top27075.9399mm-24mm
    J6Top27016mm-45mm
    R1Top0-3mm-31mm
    R2Top0-69mm-40mm
    R3Top0-10mm38mm
    R4Top0-6mm-28mm
    R5Top0-52mm-40mm
    R6Top0-69mm-34mm
    R7Top0-38mm-40mm
    R8Top0-52mm-34mm
    R9Top0-22mm-38mm
    R10Top0-38mm-34mm
    R11Top0-69mm-18mm
    R12Top0-22mm-32mm
    R13Top0-52mm-18mm
    R14Top0-69mm-12mm
    R15Top0-38mm-18mm
    R16Top0-52mm-12mm
    R17Top0-24mm-18mm
    R18Top0-38mm-12mm
    R19Top015mm-12mm
    R20Top0-24mm-12mm
    R21Top025mm16mm
    R22Top07mm-16mm
    R23Top036mm5mm
    R24Top069mm29mm
    R25Top065mm23mm
    R26Top061mm23mm
    R27Top025mm12mm
    R28Top026mm-7mm
    R29Top025mm22mm
    R32Top046mm-24mm
    R33Top052mm-28mm
    R34Top058mm-28mm
    R35Top058mm-21mm
    R36Top064mm-21mm
    R37Top026mm-43mm
    RV1Top035mm17mm
    RV2Top048mm5mm
    RV3Top035mm-7mm
    SW1Top035mm33mm
    U1Top08.5569mm-33.6607mm
    U2Top015.8831mm4.0013mm

  • 3D Model (STEP)

    Loading 3D model...
Note: 60 generic resistors/capacitors still lack orderable MPNs, so turnkey assembly requires assigning those parts before ordering.
Assign passive MPNs
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Files

Schematic

Layout

Preview

Project Specification
Status
  • Schematic reconstructed from the original Flux design with 80 components and 47 nets.
  • PCB uses a 160 × 100 mm, four-layer stackup with dedicated inner GND and +5 V planes.
  • All footprints are in bounds and routing is complete.
  • ATtiny1616 firmware source, Makefile, and bring-up instructions are included.
Purpose
Dual-channel knock-sensor conditioner for a Volkswagen/Audi 1.8T engine with 81.5 mm bore and MaxxECU V1. It accepts two ungrounded differential piezoelectric knock sensors and produces one protected 0.5–4.5 V analog knock-severity output with RPM compensation.
Electrical Interfaces
  • J1: Knock sensor 1 differential input; neither pin is ground.
  • J2: Knock sensor 2 differential input; neither pin is ground.
  • J3: Pin 1 ECU regulated +5 V sensor supply; pin 2 sensor ground.
  • J4: Pin 1 0–5 V RPM pulse input; pin 2 sensor ground.
  • J5: Pin 1 protected ECU analog output; pin 2 sensor ground.
  • J6: Pin 1 UPDI data; pin 2 target +5 V; pin 6 ground; pins 3–5 no-connect.
Functional Architecture
  1. Each sensor lead has 10 kΩ current limiting and a bidirectional 5 V TVS to ground.
  2. 4.7 nF C0G/NP0 AC coupling and 1 MΩ biasing reference both leads to buffered 2.5 V.
  3. Matched differential active filters around U1 emphasize the expected 6–8 kHz knock band.
  4. U2 samples ADC_CH1 on PA4 and ADC_CH2 on PA5; firmware performs baseline removal, rectification, envelope extraction, selection, calibration, and RPM-dependent noise-floor compensation.
  5. PB0/TCA0 WO0 generates 31.25 kHz PWM. The analog network implements VOUT = 0.501599 + 3.996803 × D volts, where D is duty from 0 to 1.
MCU Pin Map

Table

PinNet / use
PA4ADC_CH1 waveform
PA5ADC_CH2 waveform
PA6CAL_CH1_ADC
PA7CAL_CH2_ADC
PB5CAL_RPM_ADC
PB4RPM_MCU rising-edge input
PB3SEL_CH1 active low
PB2SEL_CH2 active low
PB0PWM_RAW, TCA0 WO0
PA0UPDI_MCU
Performance Targets
  • Peak analog response near 6.9 kHz; verified source-model peak 6.950 kHz and 2.1647 V/V.
  • Output range approximately 0.5016–4.4984 V.
  • Default RPM configuration: PULSES_PER_REV = 2, explicitly configurable in firmware.
  • 8000 RPM at 2 PPR corresponds to 266.67 Hz.
  • Typical current below 25 mA; design maximum target 50 mA from the 5 V sensor supply.
Safety and Use Limits
  • Prototype hardware only; not a safety-certified knock-control device.
  • ECU corrections must use conservative retard and plausibility limits.
  • RPM-only processing cannot provide crank-angle or cylinder identification.
  • Use shielded/twisted-pair sensor wiring and ECU sensor ground; keep the module away from ignition coils and high-current wiring.
Success Criteria
  • Focused electrical ERC has no unresolved electrical errors or warnings.
  • All footprints are in bounds with no component/copper overlap shorts.
  • PCB has zero airwires and zero critical DRC issues.
  • Firmware starts at quiet output, samples all five ADC inputs, measures RPM with timeout/filtering, supports active-low selection, and saturates safely.
  • Bring-up measurements meet the numerical limits in the Board Bring-Up Plan.

  • Status

  • Purpose

  • Electrical Interfaces

  • Functional Architecture

  • MCU Pin Map

  • Performance Targets

  • Safety and Use Limits

  • Success Criteria