# ESP32-WROOM-32E Reference Design 3jT2 ## Description Bus-Powered USB-C BLE Dongle – > Manufacturability Cleanup and Production Readiness ## Project Details - **Owner:** rintoj - **Created:** 9/24/2025 - **Last Updated:** 10/22/2025 - **Visibility:** Public - **System Architecture:** flowchart LR HostUSB[Host USB Port] --> CC[CC Resistors/ESD Protection] CC --> PTC[PTC Fuse] PTC --> LDO[LDO 3.3V Regulator] LDO --> V33[3.3V Rail] V33 --> BLE[BLE Module] V33 --> USBIF[USB Interface] - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### D_SCHOT — [MBR120VLSFT1G](https://www.flux.ai/adrian95/mbr120vlsft1g~9wn.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr120vlsft1-d.pdf - Part Type: Diode - Max Reverse Voltage: 20V - Role: Rectification - Diode Type: Schottky - Package: D_SOD-323 - Manufacturer Name: onsemi - Manufacturer Part Number: MBR120VLSFT1G - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D_TVS — [PESD5V0S1BA](https://www.flux.ai/lcsc/pesd5v0s1ba~qi2k.md) - Part Type: Protection - JLCPCB Part Class: Extended Part - Package or Case Code: SOD-323_L1.7-W1.3-LS2.5-BI - Manufacturer Name: TECH PUBLIC(台舟) - Diode Type: TVS Diode - LCSC Part Number: C2827694 - Max Reverse Voltage: 5V - Role: Clamping - Manufacturer Part Number: PESD5V0S1BA - Forward Voltage: 0.8V **Pins:** - 1 [pin 1] - 2 [pin 2] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Name: Diodes Incorporated - Package: D_SOD-123 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Part Type: Diode - Manufacturer Part Number: 1N5819HW-7-F **Pins:** - A [pin 2] - K [pin 1] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Part Number: 1N5819HW-7-F - Part Type: Diode - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Role: Rectification - Diode Type: Schottky - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D2 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102~xt.md) - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 82400102 - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Protection **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### D2 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102~xt.md) - Role: Clamping - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 82400102 - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### D3 — [MBR0520LT1G](https://www.flux.ai/adrian95/mbr0520lt1g~nu.md) - Manufacturer Part Number: MBR0520LT1G - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Diode Type: Schottky - Manufacturer Name: onsemi - Package: D_SOD-123 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf **Pins:** - A [pin 2] - K [pin 1] ### D3 — [MBR0520LT1G](https://www.flux.ai/adrian95/mbr0520lt1g~nu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Manufacturer Part Number: MBR0520LT1G - Role: Rectification - Diode Type: Schottky - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Manufacturer Name: onsemi **Pins:** - A [pin 2] - K [pin 1] ### D4 — [MBR0520LT1G](https://www.flux.ai/adrian95/mbr0520lt1g~nu.md) - Diode Type: Schottky - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Part Type: Diode - Manufacturer Part Number: MBR0520LT1G - Package: D_SOD-123 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D4 — [MBR0520LT1G](https://www.flux.ai/adrian95/mbr0520lt1g~nu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Diode Type: Schottky - Manufacturer Part Number: MBR0520LT1G - Part Type: Diode - Role: Rectification - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Manufacturer Name: onsemi **Pins:** - A [pin 2] - K [pin 1] ### D5 — [PESD5V0S1BA](https://www.flux.ai/lcsc/pesd5v0s1ba~qi2k.md) - Manufacturer Part Number: PESD5V0S1BA - Role Details: ESD protection for USB D+ and D- (<1 pF) - Forward Voltage: 0.8V - Breakdown Voltage: 6.1V - Package or Case Code: SOD-323_L1.7-W1.3-LS2.5-BI - LCSC Part Number: C2827694 - Standoff Voltage: 5V - JLCPCB Part Class: Extended Part - Part Type: ESD Protection Devices - Manufacturer Name: TECH PUBLIC(台舟) - Package: D_SOD-323 - Max Reverse Voltage: 5V - Role: Protection - Diode Type: TVS Diode **Pins:** - 1 [pin 1] - 2 [pin 2] ### D6 — [PESD5V0S1BA](https://www.flux.ai/lcsc/pesd5v0s1ba~qi2k.md) - Standoff Voltage: 5V - Breakdown Voltage: 6.1V - Max Reverse Voltage: 5V - Diode Type: TVS Diode - JLCPCB Part Class: Extended Part - Part Type: ESD Protection Devices - Manufacturer Name: TECH PUBLIC(台舟) - Forward Voltage: 0.8V - Role Details: ESD protection for USB D+ and D- (<1 pF) - Manufacturer Part Number: PESD5V0S1BA - Package: D_SOD-323 - LCSC Part Number: C2827694 - Role: Protection - Package or Case Code: SOD-323_L1.7-W1.3-LS2.5-BI **Pins:** - 1 [pin 1] - 2 [pin 2] ### F1 — [MF-USHT050KX-2](https://www.flux.ai/adrian95/mf-usht050kx-2~jo.md) - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-usht.pdf?sfvrsn=99f06af6_26 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MF-USHT050KX-2 - Current Rating: 0.5A - Part Type: Protection - Manufacturer Name: Bourns Inc. **Pins:** - P1 [pin 1] - P2 [pin 2] ### F1 — [MF-USHT050KX-2](https://www.flux.ai/adrian95/mf-usht050kx-2~jo.md) - Manufacturer Name: Bourns Inc. - Part Type: Protection - Manufacturer Part Number: MF-USHT050KX-2 - Role: Current Limiting - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-usht.pdf?sfvrsn=99f06af6_26 **Pins:** - P1 [pin 1] - P2 [pin 2] ### F2 — [MF-USHT050KX-2](https://www.flux.ai/adrian95/mf-usht050kx-2~jo.md) - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-usht.pdf?sfvrsn=99f06af6_26 - Role: Current Limiting - Manufacturer Name: Bourns Inc. - Manufacturer Part Number: MF-USHT050KX-2 - Part Type: Protection - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### F2 — [MF-USHT050KX-2](https://www.flux.ai/adrian95/mf-usht050kx-2~jo.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Protection - Manufacturer Part Number: MF-USHT050KX-2 - Manufacturer Name: Bourns Inc. - Current Rating: 0.5A - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-usht.pdf?sfvrsn=99f06af6_26 **Pins:** - P1 [pin 1] - P2 [pin 2] ### F3 — [MF-USHT050KX-2](https://www.flux.ai/adrian95/mf-usht050kx-2~jo.md) - Role: Protection - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-usht.pdf?sfvrsn=99f06af6_26 - Role Details: PTC resettable fuse on VBUS - Part Type: Fuse - License: https://creativecommons.org/licenses/by/4.0/ - Voltage Rating: 6V - Manufacturer Name: Bourns Inc. - Manufacturer Part Number: MF-USHT050KX-2 - Holding Current: 0.5A **Pins:** - P1 [pin 1] - P2 [pin 2] ### IC1 — [CH340C](https://www.flux.ai/vasyl/ch340c~qf3.md) - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf - Manufacturer Name: Wah - Manufacturer Part Number: CH340C - Part Type: Integrated Circuit **Pins:** - ~CTS [pin 9] - ~DCD [pin 12] - ~DSR [pin 10] - ~DTR [pin 13] - ~RI [pin 11] - ~RTS [pin 14] - GND [pin 1] - NC [pin 7] - NC [pin 8] - R232 [pin 15] - RXD [pin 3] - TXD [pin 2] - UD- [pin 6] - UD+ [pin 5] - V3 [pin 4] - VCC [pin 16] ### IC2 — [CH340C](https://www.flux.ai/vasyl/ch340c~qf3.md) - Part Type: Integrated Circuit - Role Details: USB-UART bridge - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf - Role: Interface - Manufacturer Name: Wah - Manufacturer Part Number: CH340C **Pins:** - ~CTS [pin 9] - ~DCD [pin 12] - ~DSR [pin 10] - ~DTR [pin 13] - ~RI [pin 11] - ~RTS [pin 14] - GND [pin 1] - NC [pin 7] - NC [pin 8] - R232 [pin 15] - RXD [pin 3] - TXD [pin 2] - UD- [pin 6] - UD+ [pin 5] - V3 [pin 4] - VCC [pin 16] ### J_PWR — [PJ-011A](https://www.flux.ai/jecstronic/pj-011a~w4v.md) - Connector Type: Power Connectors - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/pj-011a.pdf - Manufacturer Part Number: PJ-011A - Part Type: Connector - Role: Power Source - Manufacturer Name: CUI Devices **Pins:** - ~ [pin 2] - ~ [pin 1] - ~ [pin 3] ### J1 — [Pin Header 01x16 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x16-2p54mm-vertical~1qc.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - 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] ### J2 — [Pin Header 01x16 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x16-2p54mm-vertical~1qc.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - 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 — [54-00164](https://www.flux.ai/adrian95/54-00164~yf4.md) - Datasheet URL: https://tensility.s3.us-west-2.amazonaws.com/uploads/pdffiles/54-00164.pdf - Connector Type: Power Connectors - Manufacturer Name: Tensility International Corp - Package or Case Code: TENSILITY_54-00164 - Part Type: Connector - Manufacturer Part Number: 54-00164 **Pins:** - ~ [pin A1] - ~ [pin A2] - ~ [pin C] - ~ [pin B] ### J4 — [54-00164](https://www.flux.ai/adrian95/54-00164~yf4.md) - Connector Type: Power Connectors - Package or Case Code: TENSILITY_54-00164 - Datasheet URL: https://tensility.s3.us-west-2.amazonaws.com/uploads/pdffiles/54-00164.pdf - Manufacturer Name: Tensility International Corp - Manufacturer Part Number: 54-00164 - Part Type: Connector **Pins:** - ~ [pin B] - ~ [pin A2] - ~ [pin C] - ~ [pin A1] ### J5 — [PJ-037A](https://www.flux.ai/vasy_skral/pj-037a~6cq.md) - EDIF Net Name: +5V_BARREL - Operating Voltage: 5V - Manufacturer Part Number: PJ-037A - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/pj-037a.pdf - Part Type: Connector - Connector Gender: Receptacle - Connector Type: Power Connectors **Pins:** - Center pin [pin 1] - Terminal [pin 2] ### J6 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12~75f.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: USB-C Male Plug - Part Type: Connector - Manufacturer Name: Korean Hroparts Elec - Symbol Style: Parametric - Manufacturer Part Number: TYPE-C-31-M-12 - Role: Connector - Datasheet URL: https://en.krhro.com/npublic/opdfjs/web/viewer.html?file=https%3A%2F%2Fomo-oss-file.thefastfile.com%2Fportal-saas%2Fnew2023011311465142457%2Fcms%2Ffile%2F95f41c83-14fa-41cb-9f86-8d6a717317e5.pdf **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin S3] - SHIELD [pin S1] - SHIELD [pin S4] - SHIELD [pin S2] - VBUS [pin B4A9] - VBUS [pin A4B9] ### LED1 — [LED-0805-Template-2](https://www.flux.ai/vasy_skral/led-0805-template-2~uu0.md) - Part Type: LED - Role: LED - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Status indicator **Pins:** - A [pin 2] - K [pin 1] ### PWR — [LED-0805-Template-2](https://www.flux.ai/vasy_skral/led-0805-template-2~uu0.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### Q1 — BSS138 - Manufacturer Part Number: BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Name: onsemi - Part Type: Transistor **Pins:** - D - G - S ### Q2 — BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Part Number: BSS138 - Part Type: Transistor - Manufacturer Name: onsemi **Pins:** - D - G - S ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Part Type: Switch **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### TP1 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Mechanical **Pins:** - 1 [pin 1] ### TP10 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Part Type: Mechanical - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### TP11 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Part Type: Mechanical - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP12 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Part Type: Mechanical - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP2 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Part Type: Mechanical - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 **Pins:** - 1 [pin 1] ### TP3 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Part Type: Mechanical - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP4 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Mechanical - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP5 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Part Type: Mechanical - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 **Pins:** - 1 [pin 1] ### TP6 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Part Type: Mechanical - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP7 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Mechanical - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP8 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Part Type: Mechanical **Pins:** - 1 [pin 1] ### TP9 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Part Type: Mechanical - Manufacturer Part Number: 5019 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 **Pins:** - 1 [pin 1] ### U1 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021917_Advanced-Monolithic-Systems-AMS1117_C6188.pdf - Part Type: Integrated Circuit - Manufacturer Name: AMS - Manufacturer Part Number: AMS1117-3.3 **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U101 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - LCSC Part Number: C238123 - Manufacturer Name: Keystone - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Part Number: 5002 - Mount: Through Hole - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - JLCPCB Part Class: Extended Part - Role: Isolation - Part Type: Connector **Pins:** - 1 [pin 1] ### U11 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - Part Type: Connector - Role: Isolation - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Mount: Through Hole - Manufacturer Name: Keystone - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Part Number: 5002 - LCSC Part Number: C238123 **Pins:** - 1 [pin 1] ### U12 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - Manufacturer Part Number: 5002 - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Name: Keystone - Mount: Through Hole - LCSC Part Number: C238123 - Part Type: Connector - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Role: Isolation **Pins:** - 1 [pin 1] ### U13 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - Role: Isolation - LCSC Part Number: C238123 - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Name: Keystone - Manufacturer Part Number: 5002 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - Mount: Through Hole - Part Type: Connector - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] ### U14 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - Part Type: Connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Role: Isolation - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Name: Keystone - Role: 323231test - LCSC Part Number: C238123 - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - Mount: Through Hole - Manufacturer Part Number: 5002 - Role: Tt56765test **Pins:** - 1 [pin 1] ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasy_skral/esp32-wroom-32e~7ed.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf - Manufacturer Part Number: ESP32-WROOM-32E - Part Type: Integrated Circuit - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND=> . [pin 15] - EN [pin 3] - GND [pin 38] - GND [pin 39] - GND [pin 1] - 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 18] - NC [pin 19] - NC [pin 17] - NC [pin 21] - NC [pin 22] - NC [pin 32] - NC [pin 20] - RXD0/IO3 [pin 34] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - TXD0/IO1 [pin 35] - VDD [pin 2] ### U3 — [SHT31-DIS-B2.5KS](https://www.flux.ai/vasy_skral/sht31-dis-b25ks~lhv.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sensirion%20PDFs/HT_DS_SHT3x_DIS.pdf - Part Type: Sensor - Manufacturer Name: Sensirion AG - Manufacturer Part Number: SHT31-DIS-B2.5KS - Operating Voltage: 3.3V **Pins:** - ~RESET [pin 6] - ADDR [pin 2] - ALERT [pin 3] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 9] - VSS [pin 8] ### U4 — [TPS62130ARGTR](https://www.flux.ai/ryanf/tps62130argtr~8k9.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps62130a.pdf?ts=1716649051225&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS62130A - Manufacturer Part Number: TPS62130ARGTR - Part Type: Power Management - Manufacturer Name: Texas Instruments - Package or Case Code: QFN50P300X300X50-17N - License: https://creativecommons.org/licenses/by/4.0/ - Operating Voltage: 3.3V **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] ### U5 — [TPS7A0233PDQNR](https://www.flux.ai/lcsc/tps7a0233pdqnr~hbc4.md) - Role: Power Filtering - LCSC Part Number: C2860046 - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - Part Type: Linear Regulator - Operating Voltage: 3.3V - Package or Case Code: X2SON-4_L1.0-W1.0-P0.65-TL-EP - Manufacturer Part Number: TPS7A0233PDQNR **Pins:** - EN [pin 3] - EP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U6 — [SHT31-DIS-B2.5KS](https://www.flux.ai/vasy_skral/sht31-dis-b25ks~lhv.md) - Manufacturer Part Number: SHT31-DIS-B2.5KS - Manufacturer Name: Sensirion AG - Part Type: Sensor - Operating Voltage: 3.3V - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sensirion%20PDFs/HT_DS_SHT3x_DIS.pdf **Pins:** - ~RESET [pin 6] - ADDR [pin 2] - ALERT [pin 3] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 9] - VSS [pin 8] ### U7 — [TPS62130ARGTR](https://www.flux.ai/ryanf/tps62130argtr~8k9.md) - Package or Case Code: QFN50P300X300X50-17N - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPS62130ARGTR - Operating Voltage: 3.3V - 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: Power Management **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 1] - SW [pin 2] - SW [pin 3] - VOS [pin 14] ### U8 — [TPS7A0233PDQNR](https://www.flux.ai/lcsc/tps7a0233pdqnr~hbc4.md) - Role: Power Filtering - LCSC Part Number: C2860046 - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - Operating Voltage: 3.3V - Manufacturer Part Number: TPS7A0233PDQNR - Package or Case Code: X2SON-4_L1.0-W1.0-P0.65-TL-EP - Part Type: Linear Regulator **Pins:** - EN [pin 3] - EP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U9 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - VIN Operating Range: 4.75V - 5.25V - Part Type: Integrated Circuit - Role Details: 3.3 V LDO regulator from VBUS - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AMS1117-3.3 - Dropout Voltage: 1.45V - Manufacturer Name: AMS - Role: Power Management - Datasheet URL: http://www.advanced-monolithic.com/pdf/ds1117.pdf - Symbol Style: Parametric **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U9 — [5002](https://www.flux.ai/lcsc/5002~kf6.md) - Part Type: Connector - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5002_Keystone-5002_C238123.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5002_C238123.pdf - Package or Case Code: TEST-TH_BD2.54-P1.39 - Manufacturer Name: Keystone - Manufacturer Part Number: 5002 - Mount: Through Hole - Role: Isolation - LCSC Part Number: C238123 **Pins:** - 1 [pin 1] ### USB1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12~75f.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2205251630_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf - Part Type: Connector - Manufacturer Name: Korean Hroparts Elec - Manufacturer Part Number: TYPE-C-31-M-12 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin S3] - SHIELD [pin S1] - SHIELD [pin S4] - SHIELD [pin S2] - VBUS [pin A4B9] - VBUS [pin B4A9] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rintoj/esp32-wroom-32e-reference-design-3jt2~kv](https://www.flux.ai/rintoj/esp32-wroom-32e-reference-design-3jt2~kv).* --- *Generated from [https://www.flux.ai/rintoj/esp32-wroom-32e-reference-design-3jt2~kv](https://www.flux.ai/rintoj/esp32-wroom-32e-reference-design-3jt2~kv)*