# CT04 Intelligent Control PCB ## Description Control PCB for a robotic platform with 24V input, STM32F427ZI coordination, Ethernet/USB/CAN/RS-485/wireless interfaces, load gating, thermal control, and STO safety monitoring. ## Project Details - **Owner:** aassaaff - **Created:** 6/29/2026 - **Last Updated:** 7/8/2026 - **Visibility:** Public ## Key Components ### J1 — [HFJ11-2450E-L11RL](https://www.flux.ai/adrian95/hfj11-2450e-l11rl~ee8.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: HALO Electronics, Inc. - Part Type: Connector - Manufacturer Part Number: HFJ11-2450E-L11RL - Role: RJ45 MagJack - Role Details: 10/100 Ethernet external switch port with integrated magnetics - Datasheet URL: https://www.haloelectronics.com/pdf/fastjack-100baset.pdf - Package or Case Code: HFJ11-2450E-L11RL **Pins:** - ANODE_1 [pin 9] - ANODE_2 [pin 11] - CATHODE_1 [pin 10] - CATHODE_2 [pin 12] - CT_1 [pin 2] - CT_2 [pin 5] - GND [pin 8] - N/C [pin 7] - RD- [pin 6] - RD+ [pin 4] - TD- [pin 3] - TD+ [pin 1] ### J10 — [61300811121](https://www.flux.ai/jecstronic/61300811121~m8u.md) - Datasheet URL: https://www.we-online.com/components/products/datasheet/6130xx11121.pdf - Manufacturer Name: Würth Elektronik - Role Details: CAN connector logical pinout: pin 1 CAN_H, pin 2 CAN_L, pin 3 ground. Replace footprint with exact PDF connector later if required. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 61300811121 - Role: CAN Connector - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J2 — [HFJ11-2450E-L11RL](https://www.flux.ai/adrian95/hfj11-2450e-l11rl~ee8.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: RJ45 MagJack - Manufacturer Name: HALO Electronics, Inc. - Manufacturer Part Number: HFJ11-2450E-L11RL - Role Details: 10/100 Ethernet external switch port with integrated magnetics - Part Type: Connector - Datasheet URL: https://www.haloelectronics.com/pdf/fastjack-100baset.pdf - Package or Case Code: HFJ11-2450E-L11RL **Pins:** - ANODE_1 [pin 9] - ANODE_2 [pin 11] - CATHODE_1 [pin 10] - CATHODE_2 [pin 12] - CT_1 [pin 2] - CT_2 [pin 5] - GND [pin 8] - N/C [pin 7] - RD- [pin 6] - RD+ [pin 4] - TD- [pin 3] - TD+ [pin 1] ### J3 — [HFJ11-2450E-L11RL](https://www.flux.ai/adrian95/hfj11-2450e-l11rl~ee8.md) - Datasheet URL: https://www.haloelectronics.com/pdf/fastjack-100baset.pdf - Package or Case Code: HFJ11-2450E-L11RL - Role: RJ45 MagJack - Role Details: 10/100 Ethernet external switch port with integrated magnetics - Part Type: Connector - Manufacturer Part Number: HFJ11-2450E-L11RL - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: HALO Electronics, Inc. **Pins:** - ANODE_1 [pin 9] - ANODE_2 [pin 11] - CATHODE_1 [pin 10] - CATHODE_2 [pin 12] - CT_1 [pin 2] - CT_2 [pin 5] - GND [pin 8] - N/C [pin 7] - RD- [pin 6] - RD+ [pin 4] - TD- [pin 3] - TD+ [pin 1] ### J4 — [HFJ11-2450E-L11RL](https://www.flux.ai/adrian95/hfj11-2450e-l11rl~ee8.md) - Role Details: 10/100 Ethernet external switch port with integrated magnetics - Role: RJ45 MagJack - Datasheet URL: https://www.haloelectronics.com/pdf/fastjack-100baset.pdf - Package or Case Code: HFJ11-2450E-L11RL - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: HALO Electronics, Inc. - Manufacturer Part Number: HFJ11-2450E-L11RL - Part Type: Connector **Pins:** - ANODE_1 [pin 9] - ANODE_2 [pin 11] - CATHODE_1 [pin 10] - CATHODE_2 [pin 12] - CT_1 [pin 2] - CT_2 [pin 5] - GND [pin 8] - N/C [pin 7] - RD- [pin 6] - RD+ [pin 4] - TD- [pin 3] - TD+ [pin 1] ### J5 — [61300811121](https://www.flux.ai/jecstronic/61300811121~m8u.md) - Manufacturer Part Number: 61300811121 - Role: CAN Connector - Role Details: CAN connector logical pinout: pin 1 CAN_H, pin 2 CAN_L, pin 3 ground. Replace footprint with exact PDF connector later if required. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.we-online.com/components/products/datasheet/6130xx11121.pdf - Manufacturer Name: Würth Elektronik - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J8 — [61300811121](https://www.flux.ai/jecstronic/61300811121~m8u.md) - Datasheet URL: https://www.we-online.com/components/products/datasheet/6130xx11121.pdf - Manufacturer Name: Würth Elektronik - Role Details: 2x4 double-row connector; Step 1 uses +5V_IN and GND from power PCB - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 61300811121 - Role: Power/Input Connector - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J9 — [61300811121](https://www.flux.ai/jecstronic/61300811121~m8u.md) - Role Details: 2x4 header for SWDIO, SWCLK, SWO, NRST, +3V3 reference, and GND - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: SWD Debug Connector - Datasheet URL: https://www.we-online.com/components/products/datasheet/6130xx11121.pdf - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 61300811121 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### PS1 — [RFM-0505S](https://www.flux.ai/adrian95/rfm-0505s~hz5.md) - Manufacturer Part Number: RFM-0505S - Role: Isolated DC/DC - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Generates +5V_ISO_CAN from J8 +5V_IN for ISO1042 isolated side - Part Type: Power Source - Manufacturer Name: Recom Power - Datasheet URL: https://recom-power.com/pdf/Econoline/RFM.pdf **Pins:** - -VIN [pin 1] - -VOUT [pin 3] - +VIN [pin 2] - +VOUT [pin 4] ### U1 — [STM32F427ZIT6](https://www.flux.ai/adrian95/stm32f427zit6~luk.md) - Role Details: STM32F427ZI, 144-pin LQFP control processor for Ethernet RMII and CAN interfaces - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/03/b4/b2/36/4c/72/49/29/DM00071990.pdf/files/DM00071990.pdf/jcr:content/translations/en.DM00071990.pdf - Manufacturer Name: STMicroelectronics - Role: Main MCU - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: STM32F427ZIT6 **Pins:** - BOOT0 [pin 138] - NRST [pin 25] - PA_0 [pin 34] - PA_1 [pin 35] - PA_10 [pin 102] - PA_11 [pin 103] - PA_12 [pin 104] - PA_13 [pin 105] - PA_14 [pin 109] - PA_15 [pin 110] - PA_2 [pin 36] - PA_3 [pin 37] - PA_4 [pin 40] - PA_5 [pin 41] - PA_6 [pin 42] - PA_7 [pin 43] - PA_8 [pin 100] - PA_9 [pin 101] - PB0 [pin 46] - PB1 [pin 47] - PB10 [pin 69] - PB11 [pin 70] - PB12 [pin 73] - PB13 [pin 74] - PB14 [pin 75] - PB15 [pin 76] - PB2 [pin 48] - PB3 [pin 133] - PB4 [pin 134] - PB5 [pin 135] - PB6 [pin 136] - PB7 [pin 137] - PB8 [pin 139] - PB9 [pin 140] - PC0 [pin 26] - PC1 [pin 27] - PC10 [pin 111] - PC11 [pin 112] - PC12 [pin 113] - PC13 [pin 7] - PC14 [pin 8] - PC15 [pin 9] - PC2 [pin 28] - PC3 [pin 29] - PC4 [pin 44] - PC5 [pin 45] - PC6 [pin 96] - PC7 [pin 97] - PC8 [pin 98] - PC9 [pin 99] - PD0 [pin 114] - PD1 [pin 115] - PD10 [pin 79] - PD11 [pin 80] - PD12 [pin 81] - PD13 [pin 82] - PD14 [pin 85] - PD15 [pin 86] - PD2 [pin 116] - PD3 [pin 117] - PD4 [pin 118] - PD5 [pin 119] - PD6 [pin 122] - PD7 [pin 123] - PD8 [pin 77] - PD9 [pin 78] - PDR_ON [pin 143] - PE0 [pin 141] - PE1 [pin 142] - PE10 [pin 63] - PE11 [pin 64] - PE12 [pin 65] - PE13 [pin 66] - PE14 [pin 67] - PE15 [pin 68] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 58] - PE8 [pin 59] - PE9 [pin 60] - PF0 [pin 10] - PF1 [pin 11] - PF10 [pin 22] - PF11 [pin 49] - PF12 [pin 50] - PF13 [pin 53] - PF14 [pin 54] - PF15 [pin 55] - PF2 [pin 12] - PF3 [pin 13] - PF4 [pin 14] - PF5 [pin 15] - PF6 [pin 18] - PF7 [pin 19] - PF8 [pin 20] - PF9 [pin 21] - PG0 [pin 56] - PG1 [pin 57] - PG10 [pin 125] - PG11 [pin 126] - PG12 [pin 127] - PG13 [pin 128] - PG14 [pin 129] - PG15 [pin 132] - PG2 [pin 87] - PG3 [pin 88] - PG4 [pin 89] - PG5 [pin 90] - PG6 [pin 91] - PG7 [pin 92] - PG8 [pin 93] - PG9 [pin 124] - PH0 [pin 23] - PH1 [pin 24] - VBAT [pin 6] - VCAP_1 [pin 71] - VCAP_2 [pin 106] - VDD_1 [pin 17] - VDD_10 [pin 121] - VDD_11 [pin 131] - VDD_12 [pin 144] - VDD_2 [pin 30] - VDD_3 [pin 39] - VDD_4 [pin 52] - VDD_5 [pin 62] - VDD_6 [pin 72] - VDD_7 [pin 84] - VDD_8 [pin 95] - VDD_9 [pin 108] - VDDA [pin 33] - VREF+ [pin 32] - VSS_1 [pin 16] - VSS_2 [pin 38] - VSS_3 [pin 51] - VSS_4 [pin 61] - VSS_5 [pin 83] - VSS_6 [pin 94] - VSS_7 [pin 107] - VSS_8 [pin 120] - VSS_9 [pin 130] - VSSA [pin 31] ### U2 — [KSZ8895FQXCA](https://www.flux.ai/lcsc/ksz8895fqxca~c4o0.md) - Role Details: KSZ8895 5-port switch with RMII connection to STM32 and four external RJ45 magnetics ports - Package or Case Code: QFP-128_L20.0-W14.0-P0.50-LS23.2-BL - Manufacturer Name: MICROCHIP(美国微芯) - Role: Ethernet Switch - Manufacturer Part Number: KSZ8895FQXCA - LCSC Part Number: C639477 **Pins:** - FXSD3 [pin 38] - FXSD4 [pin 39] - GNDA [pin 6] - GNDA [pin 127] - GNDA [pin 30] - GNDA [pin 16] - GNDA [pin 27] - GNDA [pin 12] - GNDA [pin 2] - GNDA [pin 34] - GNDA [pin 21] - GNDD [pin 99] - GNDD [pin 116] - GNDD [pin 88] - GNDD [pin 76] - GNDD [pin 58] - GNDD [pin 49] - IN_PWR_SEL [pin 126] - INTR_N [pin 48] - ISET [pin 17] - LDO_O [pin 125] - LED1-0 [pin 106] - LED1-1 [pin 105] - LED1-2 [pin 104] - LED2-0 [pin 103] - LED2-1 [pin 102] - LED2-2 [pin 101] - LED3-0 [pin 98] - LED3-1 [pin 97] - LED3-2 [pin 96] - LED4-0 [pin 95] - LED4-1 [pin 94] - LED4-2 [pin 93] - LED5-0 [pin 92] - LED5-1 [pin 91] - LED5-2 [pin 90] - MDC [pin 107] - MDIO [pin 108] - MDIXDIS [pin 1] - NC [pin 120] - NC [pin 42] - NC [pin 46] - NC [pin 44] - NC [pin 45] - NC [pin 123] - NC [pin 43] - NC [pin 41] - NC [pin 40] - NC [pin 124] - PCOL [pin 68] - PCRS [pin 67] - PMRXC [pin 60] - PMRXD0 [pin 65] - PMRXD1 [pin 64] - PMRXD2 [pin 63] - PMRXD3 [pin 62] - PMRXDV/PMCRSDV [pin 61] - PMRXER [pin 66] - PMTXC/PMREFCLK [pin 57] - PMTXD0 [pin 55] - PMTXD1 [pin 54] - PMTXD2 [pin 53] - PMTXD3 [pin 52] - PMTXEN [pin 51] - PMTXER [pin 56] - PS0 [pin 114] - PS1 [pin 113] - PWRDN_N [pin 47] - RST_N [pin 115] - RXM1 [pin 5] - RXM2 [pin 11] - RXM3 [pin 20] - RXM4 [pin 26] - RXM5 [pin 33] - RXP1 [pin 4] - RXP2 [pin 10] - RXP3 [pin 19] - RXP4 [pin 25] - RXP5 [pin 32] - SCANEN [pin 119] - SCOL [pin 84] - SCONF0 [pin 87] - SCONF1 [pin 86] - SCRS [pin 85] - SMRXC [pin 78] - SMRXD0 [pin 83] - SMRXD1 [pin 82] - SMRXD2 [pin 81] - SMRXD3 [pin 80] - SMRXDV/SMCRSDV [pin 79] - SMTXC/SMREFCLK [pin 75] - SMTXD0 [pin 73] - SMTXD1 [pin 72] - SMTXD2 [pin 71] - SMTXD3 [pin 70] - SMTXEN [pin 69] - SMTXER [pin 74] - SPIC/SCL [pin 110] - SPID/SDA [pin 111] - SPIQ [pin 109] - SPIS_N [pin 112] - TEST2 [pin 128] - TESTEN [pin 118] - TXM1 [pin 8] - TXM2 [pin 14] - TXM3 [pin 23] - TXM4 [pin 29] - TXM5 [pin 36] - TXP1 [pin 7] - TXP2 [pin 13] - TXP3 [pin 22] - TXP4 [pin 28] - TXP5 [pin 35] - VDDAR [pin 3] - VDDAR [pin 15] - VDDAR [pin 31] - VDDAT [pin 18] - VDDAT [pin 24] - VDDAT [pin 37] - VDDAT [pin 9] - VDDC [pin 89] - VDDC [pin 117] - VDDC [pin 50] - VDDIO [pin 100] - VDDIO [pin 59] - VDDIO [pin 77] - X1 [pin 121] - X2 [pin 122] ### U3 — [ISO1042BDW](https://www.flux.ai/lcsc/iso1042bdw~p9y6.md) - Role: Isolated CAN Transceiver - LCSC Part Number: C1544868 - Manufacturer Part Number: ISO1042BDW - Manufacturer Name: TI(德州仪器) - Role Details: Slave CAN only; logic side on +3V3/GND, bus side on +5V_ISO_CAN/GND_CAN_ISO - Package or Case Code: SOIC-16_L10.3-W7.5-P1.27-LS10.3-BL - JLCPCB Part Class: Extended Part **Pins:** - CANH [pin 13] - CANL [pin 12] - GND1 [pin 2] - GND1 [pin 8] - GND2 [pin 10] - GND2 [pin 15] - GND2 [pin 9] - NC [pin 14] - NC [pin 6] - NC [pin 4] - NC [pin 7] - RXD [pin 5] - TXD [pin 3] - VCC1 [pin 1] - VCC2 [pin 11] - VCC2 [pin 16] ### U4 — [SN65HVD230DR](https://www.flux.ai/adrian95/sn65hvd230dr~9gb.md) - Role: CAN Transceiver - Manufacturer Part Number: SN65HVD230DR - Part Type: Integrated Circuit - Role Details: Master CAN, non-isolated, fixed 120 ohm termination at RJ45 port - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn65hvd230 - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 **Pins:** - CANH [pin 7] - CANL [pin 6] - D [pin 1] - GND [pin 2] - R [pin 4] - Rs [pin 8] - VCC [pin 3] - Vref [pin 5] ### U5 — [LD1085D2M33R](https://www.flux.ai/jecstronic/ld1085d2m33r~rqp.md) - Role: 3.3V Regulator - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Local +3V3 generation for STM32, Ethernet switch logic, and CAN logic side; thermal dissipation to be reviewed - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/d3/84/d5/f6/3c/23/40/7b/CD00001883.pdf/files/CD00001883.pdf/jcr:content/translations/en.CD00001883.pdf - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics NV - Manufacturer Part Number: LD1085D2M33R **Pins:** - GROUND [pin 1] - INPUT [pin 3] - OUTPUT_(TAB) [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/aassaaff/ct04-intelligent-control-pcb~v7](https://www.flux.ai/aassaaff/ct04-intelligent-control-pcb~v7).* --- *Generated from [https://www.flux.ai/aassaaff/ct04-intelligent-control-pcb~v7](https://www.flux.ai/aassaaff/ct04-intelligent-control-pcb~v7)*