# ESP32-H2-WROOM-03 Reference Design e57n rokC ## Description This project is an IoT development board based on the ESP32-H2-WROOM-03 module, featuring USB-C connectivity for power and communication. The board also includes two buttons, several decoupling capacitors, and a couple of connectors for peripheral connections. The onboard USB-to-UART bridge facilitates communication with a host device. #referenceDesign #esp32 #iot #esp32-h2 #project #template #reference-design ## Project Details - **Owner:** nramakrishnan - **Created:** 9/29/2024 - **Last Updated:** 9/29/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### IC1 — [CP2102N-A02-GQFN24](https://www.flux.ai/vasyl/cp2102n-a02-gqfn24.md) - Manufacturer Name: Silicon Labs - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/cp2102n-datasheet.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: CP2102N-A02-GQFN24 **Pins:** - ~CTS [pin 18] - ~DCD [pin 24] - ~DSR [pin 22] - ~DTR [pin 23] - ~RI~/CLK [pin 1] - ~RST [pin 9] - ~RTS [pin 19] - ~RXT~/GPIO.1 [pin 13] - ~SUSPEND [pin 15] - ~TXT~/GPIO.0 [pin 14] - ~WAKEUP~/GPIO.3 [pin 11] - D- [pin 4] - D+ [pin 3] - GND [pin 25] - GND [pin 2] - NC [pin 16] - NC [pin 10] - RS485/GPIO.2 [pin 12] - RXD [pin 20] - SUSPEND [pin 17] - TXD [pin 21] - USB [pin 8] - VDD [pin 6] - VIO [pin 5] - VREGIN [pin 7] ### J1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12.md) - Manufacturer Part Number: TYPE-C-31-M-12 - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/2205251630_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf - 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 A4B9] - VBUS [pin B4A9] ### J2 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12.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] ### J3 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J4 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### Q1 — [BSS138](https://www.flux.ai/adrian95/bss138.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Part Number: BSS138 - Part Type: Transistor - Manufacturer Name: onsemi **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [BSS138](https://www.flux.ai/adrian95/bss138.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Part Number: BSS138 - Part Type: Transistor - Manufacturer Name: onsemi **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### SW2 — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Manufacturer Name: C&K - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### SW3 — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch - Manufacturer Name: C&K **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### U1 — [ESP32-H2-WROOM-03](https://www.flux.ai/vasyl/esp32-h2-wroom-03.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-h2-wroom-03_datasheet_en.pdf - Manufacturer Name: Espressif - Manufacturer Part Number: ESP32-H2-WROOM-03 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: WiFi Module **Pins:** - 3.3V [pin 6] - EN [pin 1] - GND [pin 7] - IO1 [pin 2] - IO10 [pin 9] - IO11 [pin 5] - IO12 [pin 4] - IO22 [pin 3] - IO25 [pin 8] - IO4 [pin 11] - IO5 [pin 10] - NC [pin 12] ### U2 — [TLV73333PDBVT](https://www.flux.ai/adrian95/tlv73333pdbvt.md) - Manufacturer Part Number: TLV73333PDBVT - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftlv733p - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/nramakrishnan/esp32-h2-wroom-03-reference-design-e57n-rokc](https://www.flux.ai/nramakrishnan/esp32-h2-wroom-03-reference-design-e57n-rokc).* --- *Generated from [https://www.flux.ai/nramakrishnan/esp32-h2-wroom-03-reference-design-e57n-rokc](https://www.flux.ai/nramakrishnan/esp32-h2-wroom-03-reference-design-e57n-rokc)*