# ESP32 28V Ethernet Controller ## Description Clean-sheet 28 V industrial controller with ESP32-WROOM-32UE, RMII Ethernet, USB-UART programming, external switch interfaces, Tic 36v4 stepper control, protected I/O, and logic ride-through. ## Project Details - **Owner:** bussboy - **Created:** 8/3/2026 - **Last Updated:** 8/4/2026 - **Visibility:** Public - **Software:** ESP-IDF - **Operating Voltage:** 28V - **Domain:** Industrial Control - **Implementation Details:** ESP32-WROOM-32UE, RMII, USB-UART, four or six layer PCB - **Connectivity:** 10/100 Ethernet ## Key Components ### D1 — [TPD2E2U06DCKR](https://www.flux.ai/lcsc/tpd2e2u06dckr~6ori.md) - Package or Case Code: SC-70-3_L2.0-W1.3-P0.65-LS2.1-BL - Functional Group: 04 USB UART and Autoprogram - Part Type: TVS - Role: ESD Protection - LCSC Part Number: C1855726 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPD2E2U06DCKR - JLCPCB Part Class: Extended Part - Role Details: USB 2.0 pair protection at D-Sub entry - Datasheet URL: https://www.ti.com/lit/ds/symlink/tpd2e2u06.pdf?HQS=dis-dk-null-digikeymode-dsf-pf-null-wwe&ts=1779250564192&ref_url=https%253A%252F%252Fwww.ti.com%252Fgeneral%252Fdocs%252Fsuppproductinfo.tsp%253FdistId%253D10%2526gotoUrl%253Dhttps%253A%252F%252Fwww.ti.com%252Flit%252Fgpn%252Ftpd2e2u06 - Manufacturer Name: TI(德州仪器) **Pins:** - GND [pin 3] - IO1 [pin 1] - IO2 [pin 2] ### D2 — [SMBJ33A](https://www.flux.ai/lcsc/smbj33a~g375.md) - Product Info Url: https://lcsc.com/product-detail/TVS_Shikues-SMBJ33A_C499848.html - JLCPCB Part Class: Extended Part - Part Type: TVS - Manufacturer Part Number: SMBJ33A - Functional Group: 02 Input Protection and Power - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - LCSC Part Number: C499848 - Manufacturer Name: SHIKUES(时科) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010132_Shikues-SMBJ33A_C499848.pdf **Pins:** - A [pin 2] - C [pin 1] ### D3 — [SS56](https://www.flux.ai/lcsc/ss56~hea6.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SS56 - Part Type: Schottky Barrier Diodes (SBD) - Package or Case Code: SMC_L6.9-W5.9-LS7.9-R-RD - Datasheet URL: https://www.lcsc.com/datasheet/C65009.pdf?spm=wm.sxq.inf.ggs___wm.ssy.bg.0.xh&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlhaXlxfQlZWUjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - LCSC Part Number: C65009 - Diode Type: Schottky Diode - JLCPCB Part Class: Extended Part - Functional Group: 02 Input Protection and Power - Forward Voltage: 0.55V - Reverse Voltage: 60V - Manufacturer Name: MDD(Microdiode Semiconductor) **Pins:** - A [pin 1] - K [pin 2] ### D4 — [SS56](https://www.flux.ai/lcsc/ss56~hea6.md) - Datasheet URL: https://www.lcsc.com/datasheet/C65009.pdf?spm=wm.sxq.inf.ggs___wm.ssy.bg.0.xh&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlhaXlxfQlZWUjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - LCSC Part Number: C65009 - Manufacturer Part Number: SS56 - Part Type: Schottky Barrier Diodes (SBD) - Package or Case Code: SMC_L6.9-W5.9-LS7.9-R-RD - License: https://creativecommons.org/licenses/by/4.0/ - Reverse Voltage: 60V - Manufacturer Name: MDD(Microdiode Semiconductor) - Forward Voltage: 0.55V - JLCPCB Part Class: Extended Part - Functional Group: 09 Logic Hold-up - Diode Type: Schottky Diode - Role: Reverse Blocking - Role Details: 60 V 5 A Schottky in charge path; prevents HOLDUP_STORE backfeed into V5P2 **Pins:** - A [pin 1] - K [pin 2] ### F1 — [0468002.NRHF](https://www.flux.ai/lcsc/0468002pnrhf~pn1h.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010303_Littelfuse-0468002-NRHF_C187611.pdf - Role Details: 2 A logic branch fuse; documented protected-input peak 1.25 A, 1.6x margin - Part Type: Fuses - LCSC Part Number: C187611 - JLCPCB Part Class: Extended Part - Role: Branch Protection - Manufacturer Name: Littelfuse(美国力特) - Functional Group: 02 Input Protection and Power - Manufacturer Part Number: 0468002.NRHF - Product Info Url: https://lcsc.com/product-detail/Blade-Fuses_Littelfuse-0468002-NRHF_C187611.html - Package or Case Code: F1206 **Pins:** - 1 [pin 1] - 2 [pin 2] ### F2 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: 02 Input Protection and Power - Role: Branch Protection - Role Details: Provisional MINI blade fuse position; final fuse value blocked by Tic motor current/duty and harness rating - Manufacturer Part Number: 178.6764.0001 - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Manufacturer Name: Littelfuse/Commercial Vehicle Products - Part Type: Circuit Protection **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [634-044-263-033](https://www.flux.ai/adrian95/634-044-263-033~0oa.md) - Connector Gender: Receptacle - Mount: Through Hole - Manufacturer Name: EDAC - Connector Positions: 44 - Datasheet URL: https://files.edac.net/edac/content/series/og/English/EDAC%20633%20634%20Series%20D-sub%20Connectors%20English%20Ordering%20Guide.pdf - Connector Type: D-Sub - Manufacturer Part Number: 634-044-263-033 - Functional Group: 01 D-Sub and External IO - Connector Rows: 3 - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 41 [pin 41] - 42 [pin 42] - 43 [pin 43] - 44 [pin 44] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] - MH_1 [pin 45] - MH_2 [pin 46] ### J2 — [3020-10-0300-00](https://www.flux.ai/adrian95/3020-10-0300-00~y8n.md) - Manufacturer Name: CNC Tech - Manufacturer Part Number: 3020-10-0300-00 - Datasheet URL: https://www.cnctech.us/pdfs/3020-XX-0300-00%20(9T).pdf - Functional Group: 05 Stepper and Low Speed IO - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J3 — [282837-2](https://www.flux.ai/lcsc/282837-2~7jff.md) - Part Type: Connector - JLCPCB Part Class: Extended Part - Package or Case Code: CONN-TH_2P-P5.08_282837-2 - Manufacturer Part Number: 282837-2 - Manufacturer Name: TE Connectivity(泰科电子) - Datasheet URL: https://www.farnell.com/datasheets/3257301.pdf - Functional Group: 08 HD80 Reset and Camera Enable - LCSC Part Number: C592976 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J4 — [NE8FDH-C5E-TOP](https://www.flux.ai/adrian95/ne8fdh-c5e-top~o5m.md) - License: https://creativecommons.org/licenses/by/4.0/ - Connector Type: Ethernet - Connector Positions: 8 - Mount: Through Hole - Manufacturer Part Number: NE8FDH-C5E-TOP - Connector Gender: Receptacle - Datasheet URL: https://octopart.com/datasheet/neutrik/NE8FDH-C5E-TOP - Functional Group: 03 Ethernet and Switch Connectors - Manufacturer Name: Neutrik - 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] - SHIELD [pin S1] ### J5 — [NE8FDH-C5E-TOP](https://www.flux.ai/adrian95/ne8fdh-c5e-top~o5m.md) - Connector Gender: Receptacle - Connector Positions: 8 - Datasheet URL: https://octopart.com/datasheet/neutrik/NE8FDH-C5E-TOP - Manufacturer Name: Neutrik - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Connector Type: Ethernet - Functional Group: 03 Ethernet and Switch Connectors - Manufacturer Part Number: NE8FDH-C5E-TOP - Mount: Through Hole **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] - SHIELD [pin S1] ### J6 — [NE8FDH-C5E-TOP](https://www.flux.ai/adrian95/ne8fdh-c5e-top~o5m.md) - Connector Gender: Receptacle - Connector Positions: 8 - Datasheet URL: https://octopart.com/datasheet/neutrik/NE8FDH-C5E-TOP - Functional Group: 03 Ethernet and Switch Connectors - Manufacturer Name: Neutrik - Part Type: Connector - Mount: Through Hole - Connector Type: Ethernet - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: NE8FDH-C5E-TOP **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] - SHIELD [pin S1] ### J7 — [NE8FDH-C5E-TOP](https://www.flux.ai/adrian95/ne8fdh-c5e-top~o5m.md) - Manufacturer Part Number: NE8FDH-C5E-TOP - Connector Positions: 8 - Functional Group: 03 Ethernet and Switch Connectors - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Connector Gender: Receptacle - Manufacturer Name: Neutrik - Mount: Through Hole - Connector Type: Ethernet - Datasheet URL: https://octopart.com/datasheet/neutrik/NE8FDH-C5E-TOP **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] - SHIELD [pin S1] ### J8 — [NE8FDH-C5E-TOP](https://www.flux.ai/adrian95/ne8fdh-c5e-top~o5m.md) - Mount: Through Hole - Connector Gender: Receptacle - Part Type: Connector - Manufacturer Name: Neutrik - Functional Group: 03 Ethernet and Switch Connectors - Connector Positions: 8 - Datasheet URL: https://octopart.com/datasheet/neutrik/NE8FDH-C5E-TOP - Connector Type: Ethernet - Manufacturer Part Number: NE8FDH-C5E-TOP - License: https://creativecommons.org/licenses/by/4.0/ **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] - SHIELD [pin S1] ### K1 — [TLP3547(TP1,F](https://www.flux.ai/lcsc/tlp3547tp1cf~x6o2.md) - Part Type: Solid State Relays - MOS Output (PhotoMOS) - Role Details: Floating HD80 momentary button emulator; A connection; suffix/contact ratings provisional pending HD80 measurements - JLCPCB Part Class: Extended Part - Role: PhotoMOS Relay - LCSC Part Number: C2152315 - Package or Case Code: OPTO-SMD-8P_L9.6-W6.5-P2.54-LS10.0-BL - Manufacturer Name: TOSHIBA(东芝) - Manufacturer Part Number: TLP3547(TP1,F) - Functional Group: 08 HD80 Reset and Camera Enable **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] ### Q2 — [2N7002K](https://www.flux.ai/jecstronic/2n7002k~8y.md) - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2N7002-DS-v02_04-en.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: Relay Driver - Manufacturer Name: MDD - Role Details: Fail-safe low-side driver for TLP3547 input LED from GPIO13 - Manufacturer Part Number: 2N7002K - Part Type: Transistor - Functional Group: 08 HD80 Reset and Camera Enable **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [2N7002K](https://www.flux.ai/jecstronic/2n7002k~8y.md) - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2N7002-DS-v02_04-en.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: 04 USB UART and Autoprogram - Part Type: Transistor - Manufacturer Name: MDD - Manufacturer Part Number: 2N7002K **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q4 — [2N7002K](https://www.flux.ai/jecstronic/2n7002k~8y.md) - Manufacturer Name: MDD - Manufacturer Part Number: 2N7002K - Functional Group: 04 USB UART and Autoprogram - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2N7002-DS-v02_04-en.pdf **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q5 — [PSMN4R8-100BSEJ](https://www.flux.ai/lcsc/psmn4r8-100bsej~no99.md) - Product Info Url: https://lcsc.com/product-detail/MOSFET_Nexperia-PSMN4R8-100BSEJ_C458260.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Nexperia-PSMN4R8-100BSEJ_C458260.pdf - LCSC Part Number: C458260 - Manufacturer Part Number: PSMN4R8-100BSEJ - Part Type: MOSFETs - Functional Group: 02 Input Protection and Power - Manufacturer Name: Nexperia(安世) - Package or Case Code: SOT404_L11.0-W10.0-P2.54-LS15.3-BR **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q6 — [PSMN4R8-100BSEJ](https://www.flux.ai/lcsc/psmn4r8-100bsej~no99.md) - Manufacturer Name: Nexperia(安世) - Package or Case Code: SOT404_L11.0-W10.0-P2.54-LS15.3-BR - Manufacturer Part Number: PSMN4R8-100BSEJ - Part Type: MOSFETs - Functional Group: 02 Input Protection and Power - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Nexperia-PSMN4R8-100BSEJ_C458260.pdf - LCSC Part Number: C458260 - Product Info Url: https://lcsc.com/product-detail/MOSFET_Nexperia-PSMN4R8-100BSEJ_C458260.html - JLCPCB Part Class: Extended Part **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### SW1 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md) - Part Type: Switch - LCSC Part Number: C221896 - Manufacturer Part Number: PTS810SJK250SMTRLFS - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Manufacturer Name: C&K - Functional Group: 04 USB UART and Autoprogram **Pins:** - P1 [pin 1] - P3 [pin 3] ### SW2 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md) - Part Type: Switch - Functional Group: 04 USB UART and Autoprogram - LCSC Part Number: C221896 - Manufacturer Name: C&K - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Manufacturer Part Number: PTS810SJK250SMTRLFS **Pins:** - P1 [pin 1] - P3 [pin 3] ### T1 — [H1102NL](https://www.flux.ai/jecstronic/h1102nl~n1k.md) - Role Details: 1:1 TX/RX isolation transformer for local switch port - Manufacturer Part Number: H1102NL - Part Type: Transformer - Datasheet URL: https://www.mouser.com/datasheet/2/447/H1102NL-3071708.pdf - Manufacturer Name: Pulse Electronics - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: 06 Ethernet PHY and Magnetics - Role: Ethernet Magnetics **Pins:** - CT_1 [pin 2] - CT_2 [pin 7] - NC_1 [pin 4] - NC_2 [pin 5] - NC_3 [pin 10] - NC_4 [pin 12] - NC_5 [pin 13] - NC_6 [pin 15] - RD- [pin 8] - RD+ [pin 6] - RX- [pin 9] - RX+ [pin 11] - TD- [pin 3] - TD+ [pin 1] - TX- [pin 14] - TX+ [pin 16] ### TP1 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - Part Type: Test point - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP10 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - Part Type: Test point - Manufacturer Name: Harwin Inc. - Functional Group: System Test Access **Pins:** - P1 [pin 1] ### TP11 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Manufacturer Name: Harwin Inc. - Functional Group: System Test Access - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point - Manufacturer Part Number: S1751-46R - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] ### TP12 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point - Manufacturer Part Number: S1751-46R - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] ### TP13 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Manufacturer Part Number: S1751-46R - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP14 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point - Manufacturer Part Number: S1751-46R - Manufacturer Name: Harwin Inc. - Functional Group: System Test Access **Pins:** - P1 [pin 1] ### TP15 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Part Type: Test point - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP16 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Functional Group: System Test Access - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Test point - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP17 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - Role: Test Point - Role Details: HOLDUP_STORE charge/discharge and ride-through measurement - Functional Group: System Test Access,09 Logic Hold-up - Manufacturer Name: Harwin Inc. - Part Type: Test point **Pins:** - P1 [pin 1] ### TP2 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: S1751-46R - Part Type: Test point - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf **Pins:** - P1 [pin 1] ### TP3 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Test point - Manufacturer Part Number: S1751-46R - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Name: Harwin Inc. - Functional Group: System Test Access **Pins:** - P1 [pin 1] ### TP4 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Functional Group: System Test Access - Manufacturer Part Number: S1751-46R - Part Type: Test point - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP5 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Manufacturer Name: Harwin Inc. - Part Type: Test point - Manufacturer Part Number: S1751-46R - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: System Test Access **Pins:** - P1 [pin 1] ### TP6 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Manufacturer Part Number: S1751-46R - Part Type: Test point - Functional Group: System Test Access - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP7 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point - Manufacturer Part Number: S1751-46R - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. **Pins:** - P1 [pin 1] ### TP8 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: S1751-46R - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - Part Type: Test point **Pins:** - P1 [pin 1] ### TP9 — [S1751-46R](https://www.flux.ai/adrian95/s1751-46r~7b.md) - Functional Group: System Test Access - Manufacturer Name: Harwin Inc. - Part Type: Test point - Manufacturer Part Number: S1751-46R - Datasheet URL: https://content.harwin.com/m/c5b84e6a45e9b9f6/original/DRG-02202-Technical-Drawing-Datasheet-S1751R-pdf.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] ### U1 — [ESP32-WROOM-32UE-N16](https://www.flux.ai/lcsc/esp32-wroom-32ue-n16~x4j3.md) - Manufacturer Name: ESPRESSIF(乐鑫) - Package or Case Code: WIFI-SMD_ESP32-WROOM-32UE - Manufacturer Part Number: ESP32-WROOM-32UE-N16 - Part Type: Module - Role: Main Controller - Functional Group: 07 ESP32 Controller - JLCPCB Part Class: Extended Part - Symbol Style: parametric-v1 - Role Details: ESP32-WROOM-32UE-N16; approved GPIO map; production radios disabled - Datasheet URL: https://www.lcsc.com/datasheet/C701346.pdf?spm=wm.sxq.inf.ggs___wm.ssy.bg.0.xh&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRQFheUFNRR1hXUTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - LCSC Part Number: C701346 **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 39] - GND [pin 39] - GND [pin 39] - GND [pin 1] - GND [pin 39] - GND [pin 39] - GND [pin 39] - GND [pin 15] - GND [pin 39] - GND [pin 38] - GND [pin 39] - GND [pin 39] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - NC [pin 19] - NC [pin 18] - NC [pin 22] - NC [pin 20] - NC [pin 17] - NC [pin 21] - RXD0 [pin 34] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - TXD0 [pin 35] ### U10 — [TPS2121RUXR](https://www.flux.ai/lcsc/tps2121ruxr~qidv.md) - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Texas-Instruments-Texas-Instruments-TPS2121RUXR_C485916.html - Part Type: Battery Management ICs - Package or Case Code: VQFN-HR-12_L2.5-W2.0-P0.50-BL - LCSC Part Number: C485916 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2001181534_Texas-Instruments-TPS2121RUXR_C485916.pdf - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - Role Details: V5P2 primary and HOLDUP_STORE backup to dedicated essential-logic buck; 1.5 A nominal mux current limit - Manufacturer Part Number: TPS2121RUXR - Role: Power Multiplexer - Functional Group: 09 Logic Hold-up **Pins:** - CP2 [pin 3] - GND [pin 12] - ILM [pin 10] - IN1 [pin 7] - IN2 [pin 2] - OUT [pin 1] - OUT [pin 8] - OV1 [pin 5] - OV2 [pin 4] - PR1 [pin 6] - SS [pin 11] - ST [pin 9] ### U11 — [TPS62130ARGTR](https://www.flux.ai/ryanf/tps62130argtr~8k9.md) - Role Details: Power-mux output to V3P3_ESS; ESP32 and safe-state logic only, 0.7 A peak - Manufacturer Part Number: TPS62130ARGTR - License: https://creativecommons.org/licenses/by/4.0/ - Role: Voltage Regulator - Manufacturer Name: Texas Instruments - Package or Case Code: QFN50P300X300X50-17N - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps62130a.pdf?ts=1716649051225&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS62130A - Part Type: Switching Regulator - Functional Group: 09 Logic Hold-up **Pins:** - AGND [pin 6] - AGND [pin 17] - AVIN [pin 10] - DEF [pin 8] - EN [pin 13] - FB [pin 5] - FSW [pin 7] - PG [pin 4] - PGND [pin 16] - PGND [pin 15] - PVIN [pin 12] - PVIN [pin 11] - SS/TR [pin 9] - SW [pin 2] - SW [pin 3] - SW [pin 1] - VOS [pin 14] ### U2 — [LM76005RNPR](https://www.flux.ai/jecstronic/lm76005rnpr~yqb.md) - Role: Voltage Regulator - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Manufacturer Part Number: LM76005RNPR - Part Type: Power Management - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flm76005 - Role Details: 18-32 V protected input to 5.2 V; provisional 3.9 A peak budget - Functional Group: 02 Input Protection and Power **Pins:** - AGND_1 [pin 13] - AGND_2 [pin 14] - AGND_3 [pin 15] - BIAS [pin 9] - BOOT [pin 6] - EN [pin 18] - EP [pin 31] - FB [pin 12] - NC_1 [pin 7] - NC_2 [pin 19] - NC_3 [pin 23] - NC_4 [pin 27] - NC_5 [pin 28] - NC_6 [pin 29] - NC_7 [pin 30] - PGND_1 [pin 24] - PGND_2 [pin 25] - PGND_3 [pin 26] - PGOOD [pin 16] - PVIN_1 [pin 20] - PVIN_2 [pin 21] - PVIN_3 [pin 22] - RT [pin 10] - SS/TRK [pin 11] - SW_1 [pin 1] - SW_2 [pin 2] - SW_3 [pin 3] - SW_4 [pin 4] - SW_5 [pin 5] - SYNC/MODE [pin 17] - VCC [pin 8] ### U3 — [TPS62130ARGTR](https://www.flux.ai/ryanf/tps62130argtr~8k9.md) - Manufacturer Part Number: TPS62130ARGTR - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: QFN50P300X300X50-17N - Part Type: Switching Regulator - Role Details: 5.2 V to 3.3 V logic rail; provisional 0.7 A peak - Functional Group: 02 Input Protection and Power - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps62130a.pdf?ts=1716649051225&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS62130A - Role: Voltage Regulator **Pins:** - AGND [pin 6] - AGND [pin 17] - AVIN [pin 10] - DEF [pin 8] - EN [pin 13] - FB [pin 5] - FSW [pin 7] - PG [pin 4] - PGND [pin 16] - PGND [pin 15] - PVIN [pin 12] - PVIN [pin 11] - SS/TR [pin 9] - SW [pin 2] - SW [pin 3] - SW [pin 1] - VOS [pin 14] ### U4 — [CP2102N-A02-GQFN24](https://www.flux.ai/lcsc/cp2102n-a02-gqfn24~cpln.md) - Manufacturer Name: SILICON LABS - JLCPCB Part Class: Extended Part - Part Type: Interface - Controllers - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: 04 USB UART and Autoprogram - Package or Case Code: QFN-24_L4.0-W4.0-P0.50-TL-EP2.5 - LCSC Part Number: C1550551 - Role Details: Self-powered from logic rail; D-Sub pin 33 VBUS sense only; DTR/RTS auto-program - Datasheet URL: https://www.lcsc.com/datasheet/C1550551.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeUlZXRFZcVTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Role: USB-UART Bridge - Symbol Style: parametric-v1 - Manufacturer Part Number: CP2102N-A02-GQFN24 **Pins:** - CTS [pin 18] - D- [pin 4] - D+ [pin 3] - DCD [pin 24] - DSR [pin 22] - DTR [pin 23] - EP [pin 25] - GND [pin 2] - GPIO.0/TXT [pin 14] - GPIO.1/RXT [pin 13] - GPIO.2/RS485 [pin 12] - GPIO.3/WAKEUP [pin 11] - NC [pin 16] - NC [pin 10] - RI/CLK [pin 1] - RSTb [pin 9] - RTS [pin 19] - RXD [pin 20] - SUSPEND [pin 17] - SUSPENDb [pin 15] - TXD [pin 21] - VBUS [pin 8] - VDD [pin 6] - VIO [pin 5] - VREGIN [pin 7] ### U5 — [LAN8720A-CP-TR-ABC](https://www.flux.ai/lcsc/lan8720a-cp-tr-abc~ek8a.md) - License: https://creativecommons.org/licenses/by/4.0/ - JLCPCB Part Class: Extended Part - Role: Ethernet PHY - Datasheet URL: https://www.lcsc.com/datasheet/C621419.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1RZVFJRT1lcUTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Functional Group: 06 Ethernet PHY and Magnetics - Role Details: REF_CLK input mode from ESP32 GPIO17; PHY address 0; explicit straps - Package or Case Code: QFN-24_L4.0-W4.0-P0.50-TL-EP2.5 - Symbol Style: parametric-v1 - LCSC Part Number: C621419 - Manufacturer Part Number: LAN8720A-CP-TR-ABC - Part Type: Integrated Circuit - Manufacturer Name: MICROCHIP(美国微芯) **Pins:** - CRS_DV/~{MODE2} [pin 11] - EP [pin 25] - LED1/~{REGOFF} [pin 3] - LED2/~{nINTSEL} [pin 2] - MDC [pin 13] - MDIO [pin 12] - nINT/REFCLKO [pin 14] - nRST [pin 15] - RBIAS [pin 24] - RXD0/~{MODE0} [pin 8] - RXD1/~{MODE1} [pin 7] - RXER/~{PHYAD0} [pin 10] - RXN [pin 22] - RXP [pin 23] - TXD0 [pin 17] - TXD1 [pin 18] - TXEN [pin 16] - TXN [pin 20] - TXP [pin 21] - VDD1A [pin 19] - VDD2A [pin 1] - VDDCR [pin 6] - VDDIO [pin 9] - XTAL1/CLKIN [pin 5] - XTAL2 [pin 4] ### U6 — [PCA9306DCUT](https://www.flux.ai/jecstronic/pca9306dcut~atk.md) - Part Type: Integrated Circuit - Role Details: GPIO32/33 I2C to provisional 5 V Tic domain; DNP if direct 3.3 V confirmed - Manufacturer Part Number: PCA9306DCUT - Functional Group: 05 Stepper and Low Speed IO - Manufacturer Name: Texas Instruments - Role: Level Translator - Package or Case Code: 8-VSSOP - Datasheet URL: https://www.ti.com/lit/gpn/pca9306 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - EN [pin 8] - GND [pin 4] - SCL1 [pin 2] - SCL2 [pin 6] - SDA1 [pin 3] - SDA2 [pin 5] - VREF1 [pin 1] - VREF2 [pin 7] ### U7 — [SN74LVC1G125DRLR](https://www.flux.ai/lcsc/sn74lvc1g125drlr~uaor.md) - LCSC Part Number: C882831 - JLCPCB Part Class: Extended Part - Role: Output Buffer - Manufacturer Name: TI(德州仪器) - Package or Case Code: SOT-5X3-5_L1.6-W1.2-P0.50-LS1.6-BR - Manufacturer Part Number: SN74LVC1G125DRLR - Datasheet URL: https://www.lcsc.com/datasheet/C882831.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlVZVVIFFgBeVAVTT1BXUgFfEwJeVlBfEwVcAlMHRAQxVlNeR1RcVlZfQ1lbVDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Role Details: Default 3.3 V active-high camera enable; OE defaults disabled; mutually exclusive with Q1 open-drain option - Functional Group: 08 HD80 Reset and Camera Enable - Part Type: Integrated Circuit **Pins:** - ~{OE} [pin 1] - A [pin 2] - GND [pin 3] - VCC [pin 5] - Y [pin 4] ### U8 — [TLV6700DDCR](https://www.flux.ai/lcsc/tlv6700ddcr~oa7i.md) - Role Details: Protected 28 V monitor with explicit hysteresis; provisional 18 V falling threshold - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TLV6700DDCR - LCSC Part Number: C2868382 - Manufacturer Name: TI(德州仪器) - Package or Case Code: TSOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR - Role: Brownout Monitor - Functional Group: 02 Input Protection and Power - Part Type: Comparators - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv6700.pdf **Pins:** - GND [pin 2] - INA+ [pin 3] - INB- [pin 4] - OUTA [pin 1] - OUTB [pin 6] - VDD [pin 5] ### U9 — [LTC4368HMS-1#PBF](https://www.flux.ai/lcsc/ltc4368hms-1pbf~u2c4.md) - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_LTC4368HMS-1-PBF_Analog-Devices-ADI-LINEAR-LTC4368HMS-1-PBF_C688391.html - Package or Case Code: MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL - Functional Group: 02 Input Protection and Power - LCSC Part Number: C688391 - Manufacturer Name: Analog Devices - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Analog-Devices-LTC4368HMS-1-PBF_C688391.pdf - JLCPCB Part Class: Extended Part - Manufacturer Part Number: LTC4368HMS-1#PBF **Pins:** - ~{FAULT} [pin 7] - ~{SHDN} [pin 6] - GATE [pin 10] - GND [pin 5] - OV [pin 3] - RETRY [pin 4] - SENSE [pin 9] - UV [pin 2] - VIN [pin 1] - VOUT [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/bussboy/esp32-28v-ethernet-controller~o1](https://www.flux.ai/bussboy/esp32-28v-ethernet-controller~o1).* --- *Generated from [https://www.flux.ai/bussboy/esp32-28v-ethernet-controller~o1](https://www.flux.ai/bussboy/esp32-28v-ethernet-controller~o1)*