# ESP32-WROOM-32E Reference Design ## Description This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #simpleEmbedded #espressif #template ## Project Details - **Owner:** ogp19 - **Created:** 7/9/2025 - **Last Updated:** 8/23/2025 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### — [XL6009](https://www.flux.ai/chappy1369/tps561201.md) - Role: Power Conversion **Pins:** - EN [pin 2] - FB [pin 5] - GND [pin 1] - SW [pin 3] - VIN [pin 4] ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Manufacturer Name: C&K **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### BZ1 — [VibrationMotor5v](https://www.flux.ai/maferescam/vibrationmotor5v.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: pwm 5v - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304261046_Jiangsu-Huaneng-Elec-TMB12A05_C96093.pdf - Part Type: Vibration Motor **Pins:** - GND - IN - VCC ### CN1 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/lcsc/b2b-ph-k-slfsn.md) - Connector Pitch: 2mm - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Connector Type: Wire To Board Connector - Part Type: Wire To Board / Wire To Wire Connector - LCSC Part Number: C131337 - JLCPCB Part Class: Extended Part - Connector Rows: 1 - Product Info Url: https://lcsc.com/product-detail/PH-Connectors_JST_B2B-PH-K-S-LF-SN_B2B-PH-K-S-LF-SN_C131337.html - Connector Positions: 2 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-B2B-PH-K-S-LF-SN_C131337.pdf - Package or Case Code: CONN-TH_B2B-PH-K-S - Connector Gender: Male - Manufacturer Name: JST **Pins:** - 1 [pin 1] - 2 [pin 2] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Manufacturer Name: Diodes Incorporated - Manufacturer Part Number: 1N5819HW-7-F **Pins:** - A [pin 2] - K [pin 1] ### D2 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102.md) - Part Type: Protection - Manufacturer Name: Würth Elektronik - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - Manufacturer Part Number: 82400102 **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### H1 — [5-146274-3](https://www.flux.ai/lcsc/5-146274-3.md) - LCSC Part Number: C306223 - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811151651_TE-Connectivity-5-146274-3_C306223.pdf - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_5-146274-3_TE-Connectivity-5-146274-3_C306223.html - Part Type: Pin Headers - Manufacturer Name: TE Connectivity(泰科电子) - Manufacturer Part Number: 5-146274-3 - Role: Connector - Package or Case Code: HDR-TH_3P-P2.54-V-M **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### IC1 — [CH340C](https://www.flux.ai/vasyl/ch340c.md) - Part Type: Integrated Circuit - Manufacturer Part Number: CH340C - Manufacturer Name: Wah - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf **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 — [DRV8837DSGR](https://www.flux.ai/markwuflux/drv8837dsgr.md) - Manufacturer Part Number: DRV8837DSGR - DPN: DRV8837DSGR - Manufacturer Name: Texas Instruments Inc. **Pins:** - EP [pin 9] - GND [pin 4] - IN1 [pin 6] - IN2 [pin 5] - NSLEEP [pin 7] - OUT1 [pin 2] - OUT2 [pin 3] - VCC [pin 8] - VM [pin 1] ### J1 — [Pin Header 01x16 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x16-2p54mm-vertical.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.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] ### J3 — [S5B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/s5b-ph-k-slfsn.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: S5B-PH-K-S(LF)(SN) - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J4 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Role: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### LED1 — [5990110007F](https://www.flux.ai/adrian95/5990110007f.md) - Role: Sensing - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://s3-us-west-2.amazonaws.com/catsy.557/Dialight_CBI_data_599-0805_Apr2018.pdf - Manufacturer Part Number: 5990110007F - Manufacturer Name: Dialight - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LTST-C170KGKT](https://www.flux.ai/jecstronic/ltst-c170kgkt.md) - Role: Indicator - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTST-C170KGKT - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS22-2000-073/LTST-C170KGKT.pdf - Part Type: LED - Forward Voltage: 2V **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LSM0805463V](https://www.flux.ai/adrian95/lsm0805463v.md) - Manufacturer Part Number: LSM0805463V - Part Type: LED - Datasheet URL: https://vcclite.com/wp-content/uploads/2019/05/LSM0805463V-Blue-Datasheet.pdf - Manufacturer Name: Visual Communications Company - VCC - Role: Sensor - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### PWR — [LED-0805-Template-2](https://www.flux.ai/vasy_skral/led-0805-template-2.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 - Part Type: Transistor - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf **Pins:** - D - G - S ### Q2 — BSS138 - Manufacturer Part Number: BSS138 - Manufacturer Name: onsemi - Part Type: Transistor - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf **Pins:** - D - G - S ### Q3 — [IRF540NSTRRPBF](https://www.flux.ai/lcsc/irf540nstrrpbf.md) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: IRF540NSTRRPBF - LCSC Part Number: C537773 - Part Type: MOSFETs - Role: Switching - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2005292311_Infineon-Technologies-IRF540NSTRRPBF_C537773.pdf - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-IRF540NSTRRPBF_C537773.html - Package or Case Code: D2PAK_L9.1-W10.0-P2.54-LS15.3-BR - Manufacturer Name: Infineon(英飞凌) **Pins:** - D [pin 4] - G [pin 1] - S [pin 3] ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815.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] ### RT1 — [NTCS0805E3103FMT](https://www.flux.ai/adrian95/ntcs0805e3103fmt.md) - Part Type: Thermistor - Role: Sensing - Datasheet URL: https://www.vishay.com/docs/29044/ntcs0805e3t.pdf - Manufacturer Name: Vishay Beyschlag/Draloric/BC Components - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: NTCS0805E3103FMT **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW1 — [A101SYCQ04](https://www.flux.ai/jecstronic/a101sycq04.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: A101SYCQ04 - Part Type: Switch - Datasheet URL: https://www.mouser.ca/datasheet/2/418/5/ENG_CD_1825136_A8-660112.pdf - Manufacturer Name: TE Connectivity / Alcoswitch **Pins:** - ~ [pin 3] - ~ [pin 1] - ~ [pin 2] ### SW2 — [B3FS-1050P](https://www.flux.ai/jharwinbarrozo/b3fs-1050p.md) - Manufacturer Name: OMRON - Part Type: Switch - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 - P2 ### SW3 — [DS04-254-2-01BK-SMT](https://www.flux.ai/jecstronic/ds04-254-2-01bk-smt.md) - Manufacturer Part Number: DS04-254-2-01BK-SMT - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: CUI Devices - Part Type: Switch - Datasheet URL: https://www.cuidevices.com/product/resource/ds04-254-smt.pdf **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### SW4 — [EG1218](https://www.flux.ai/adrian95/eg1218.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: EG1218 - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/119/EG.pdf - Manufacturer Name: E-Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### SW5 — [A101SYCQ04](https://www.flux.ai/jecstronic/a101sycq04.md) - Manufacturer Name: TE Connectivity / Alcoswitch - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch - Manufacturer Part Number: A101SYCQ04 - Datasheet URL: https://www.mouser.ca/datasheet/2/418/5/ENG_CD_1825136_A8-660112.pdf **Pins:** - ~ [pin 3] - ~ [pin 1] - ~ [pin 2] ### SW6 — [B3FS-1050P](https://www.flux.ai/jharwinbarrozo/b3fs-1050p.md) - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 - P2 ### SW7 — [DS04-254-2-01BK-SMT](https://www.flux.ai/jecstronic/ds04-254-2-01bk-smt.md) - Manufacturer Name: CUI Devices - Part Type: Switch - Datasheet URL: https://www.cuidevices.com/product/resource/ds04-254-smt.pdf - Manufacturer Part Number: DS04-254-2-01BK-SMT - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### SW8 — [EG1218](https://www.flux.ai/adrian95/eg1218.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: EG1218 - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/119/EG.pdf - Manufacturer Name: E-Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### U1 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33.md) - Symbol Style: Parametric - Manufacturer Name: AMS - Part Type: Integrated Circuit - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021917_Advanced-Monolithic-Systems-AMS1117_C6188.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AMS1117-3.3 **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U10 — [CN3722](https://www.flux.ai/adrian95/cn3722.md) - Role: Power Management - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809291617_ShangHai-Consonance-Elec-CN3722_C77905.pdf - Manufacturer Part Number: CN3722 - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: ShangHai Consonance Elec **Pins:** - ~CHRG [pin 4] - ~DONE [pin 5] - BAT [pin 14] - COM1 [pin 8] - COM2 [pin 9] - COM3 [pin 11] - CSP [pin 13] - DRV [pin 16] - FB [pin 10] - GND [pin 3] - MPPT [pin 7] - NC [pin 12] - PGND [pin 2] - TEMP [pin 6] - VCC [pin 15] - VG [pin 1] ### U11 — [AMS1117-5.0](https://www.flux.ai/adrian95/ams1117-50.md) - Datasheet URL: https://www.snapeda.com/parts/AMS1117-5.0/Advanced%20Monolithic%20Systems/datasheet/ - Manufacturer Part Number: AMS1117-5.0 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: ams - Role: Linear Regulator **Pins:** - GND [pin 1] - VI [pin 3] - VO [pin 2] ### U12 — [1625854-2](https://www.flux.ai/lcsc/1625854-2.md) - Role: Sensing (Shunt) - Part Type: Test Points/Test Rings - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409301833_TE-Connectivity-1625854-2_C306063.pdf - JLCPCB Part Class: Extended Part - LCSC Part Number: C306063 - Manufacturer Part Number: 1625854-2 - Manufacturer Name: TE Connectivity(泰科电子) - Package or Case Code: TEST-RING - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_1625854-2_TE-Connectivity-1625854-2_C306063.html **Pins:** - 1 [pin 1] ### U13 — [B4B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/b4b-xh-alfsn.md) - Connector Type: Wire-to-board Header - LCSC Part Number: C144395 - JLCPCB Part Class: Extended Part - Part Type: Wire To Board / Wire To Wire Connector - Rows: 1 - Manufacturer Part Number: B4B-XH-A(LF)(SN) - Product Info Url: https://lcsc.com/product-detail/_JST-Sales-America_B4B-XH-A-LF-SN_JST-Sales-America-B4B-XH-A-LF-SN_C144395.html - Gender: Male - Role: Connector - Manufacturer Name: JST - Package or Case Code: CONN-TH_B4B-XH-A-LF-SN - Positions: 4 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-B4B-XH-A-LF-SN_C144395.pdf - Pitch: 2.5mm **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasy_skral/esp32-wroom-32e.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Manufacturer Part Number: ESP32-WROOM-32E - 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] ### U4 — [BME280](https://www.flux.ai/chaykak2/bme280.md) - Manufacturer Part Number: BME280 - Datasheet URL: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf - Part Type: Sensor - Manufacturer Name: Bosch Sensortec **Pins:** - CSB [pin 2] - GND [pin 1] - GND [pin 7] - MISO [pin 5] - MOSI [pin 3] - SCK [pin 4] - VDD [pin 8] - VDDIO [pin 6] ### U5 — [CCS811](https://www.flux.ai/kicad-part-library/ccs811.md) - Datasheet URL: https://www.sciosense.com/wp-content/uploads/documents/SC-001232-DS-3-CCS811B-Datasheet-Revision-2.pdf - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: AMS_LGA-10-1EP_2.7x4mm_P0.6mm - Manufacturer Part Number: CCS811 **Pins:** - ~{INT} [pin 3] - ~{RESET} [pin 2] - ~{WAKE} [pin 7] - ADDR [pin 1] - AUX [pin 8] - GND [pin 11] - PWM [pin 4] - SCL [pin 10] - SDA [pin 9] - Sense [pin 5] - VDD [pin 6] ### U6 — [INA219BIDR](https://www.flux.ai/lcsc/ina219bidr.md) - Manufacturer Part Number: INA219BIDR - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C2155799 - Package or Case Code: SOIC-8_L5.0-W4.0-P1.27-LS6.1-BL **Pins:** - A0 [pin 2] - A1 [pin 1] - GND [pin 6] - IN– [pin 7] - IN+ [pin 8] - SCL [pin 4] - SDA [pin 3] - VS [pin 5] ### U7 — [LM2577T-ADJ/NOPB](https://www.flux.ai/adrian95/lm2577t-adjnopb.md) - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: LM2577T-ADJ/NOPB - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2577.pdf **Pins:** - COMP [pin 1] - FB [pin 2] - GND [pin 3] - SW [pin 4] - VIN [pin 5] ### U9 — [TP4056](https://www.flux.ai/vasy_skral/tp4056.md) - Manufacturer Part Number: TP4056 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf - Manufacturer Name: NanJing Top Power ASIC Corp. - Role: Power Management **Pins:** - ~CHRG [pin 7] - ~STDBY [pin 6] - BAT [pin 5] - CE [pin 8] - EP [pin 9] - GND [pin 3] - PROG [pin 2] - TEMP [pin 1] - VCC [pin 4] ### USB1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/2205251630_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf - Manufacturer Part Number: TYPE-C-31-M-12 - Symbol Style: Parametric - Part Type: Connector - Manufacturer Name: Korean Hroparts Elec **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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ogp19/esp32-wroom-32e-reference-design](https://www.flux.ai/ogp19/esp32-wroom-32e-reference-design).* --- *Generated from [https://www.flux.ai/ogp19/esp32-wroom-32e-reference-design](https://www.flux.ai/ogp19/esp32-wroom-32e-reference-design)*