# ESP32-WROOM-32E Reference Design 3iHk ## 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 #referenceDesign #simple-embedded #espressif #template #reference-design ## Project Details - **Owner:** rasim - **Created:** 9/12/2024 - **Last Updated:** 11/27/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### IC1 — [W5500](https://www.flux.ai/vasyl/w5500~iob.md) - Part Type: Integrated Circuit - Manufacturer Name: WIZnet - Datasheet URL: https://docs.wiznet.io/img/products/w5500/w5500_ds_v109e.pdf - Manufacturer Part Number: W5500 **Pins:** - ~INT [pin 36] - ~RST [pin 37] - ~SCS [pin 32] - 1V2O [pin 22] - ACTLED [pin 27] - AGND [pin 16] - AGND [pin 9] - AGND [pin 14] - AGND [pin 3] - AGND [pin 19] - AGND [pin 48] - AVDD [pin 15] - AVDD [pin 4] - AVDD [pin 11] - AVDD [pin 21] - AVDD [pin 17] - AVDD [pin 8] - DNC [pin 7] - DUPLED [pin 26] - EXRES1 [pin 10] - GND [pin 29] - LINKLED [pin 25] - MISO [pin 34] - MOSI [pin 35] - NC [pin 12] - NC [pin 13] - NC [pin 46] - NC [pin 47] - PMODE0 [pin 45] - PMODE1 [pin 44] - PMODE2 [pin 43] - RSVD [pin 42] - RSVD [pin 39] - RSVD [pin 40] - RSVD [pin 38] - RSVD [pin 23] - RSVD [pin 41] - RXN [pin 5] - RXP [pin 6] - SCLK [pin 33] - SPDLED [pin 24] - TOCAP [pin 20] - TXN [pin 1] - TXP [pin 2] - VBG [pin 18] - VDD [pin 28] - XI/CLKIN [pin 30] - XO [pin 31] ### K1 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Manufacturer Part Number: SRD-05VDC-SL-C - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Songle Relay **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K2 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Songle Relay - Manufacturer Part Number: SRD-05VDC-SL-C - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K3 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Relay - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Manufacturer Part Number: SRD-05VDC-SL-C **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K4 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay - Manufacturer Part Number: SRD-05VDC-SL-C - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Songle Relay **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K5 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Part Type: Relay - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Manufacturer Part Number: SRD-05VDC-SL-C - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Songle Relay **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K6 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay - Manufacturer Part Number: SRD-05VDC-SL-C **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K7 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay - Manufacturer Part Number: SRD-05VDC-SL-C **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### K8 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md) - Manufacturer Part Number: SRD-05VDC-SL-C - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf - Part Type: Relay - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A1 [pin A1] - A2 [pin A2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### U1 — [MCP23017-E-SP](https://www.flux.ai/jecstronic/mcp23017-e-sp~er.md) - Manufacturer Name: Microchip - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MCP23017-E/SP - Part Type: Integrated Circuit - Datasheet URL: http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en023709 **Pins:** - ~RESET~ [pin 18] - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - NC [pin 14] - NC [pin 11] - SCK [pin 12] - SDA [pin 13] - VDD [pin 9] - VSS [pin 10] ### U2 — [ESP32-S3-WROOM-1U-N16R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1u-n16r8~1pb.md) - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ESP32-S3-WROOM-1U-N16R8 - Part Type: Module - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 41_3] - GND [pin 41_6] - GND [pin 41_7] - GND [pin 41_5] - GND [pin 41_2] - GND [pin 40] - GND [pin 41_1] - GND [pin 1] - GND [pin 41_9] - GND [pin 41_8] - GND [pin 41_4] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U4 — [SRD-05VDC-SL-C](https://www.flux.ai/vasyl/srd-05vdc-sl-c~aev.md) - Datasheet URL: https://www.circuitbasics.com/wp-content/uploads/2015/11/SRD-05VDC-SL-C-Datasheet.pdf - Manufacturer Name: Songle - Manufacturer Part Number: SRD-05VDC-SL-C - Part Type: Microcontroller **Pins:** - LIN [pin A1] - LOUT [pin A2] - TERM1 [pin NC] - TERM2 [pin COM] - TERM3 [pin NO] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rasim/esp32-wroom-32e-reference-design-3ihk~u3](https://www.flux.ai/rasim/esp32-wroom-32e-reference-design-3ihk~u3).* --- *Generated from [https://www.flux.ai/rasim/esp32-wroom-32e-reference-design-3ihk~u3](https://www.flux.ai/rasim/esp32-wroom-32e-reference-design-3ihk~u3)*