# ESP32-DEVKIT1-Mike ## 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:** lemike - **Created:** 11/5/2024 - **Last Updated:** 2/19/2025 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Copies:** 3 ## Key Components ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Part Type: Switch - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f.md) - Manufacturer Part Number: 1N5819HW-7-F - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Manufacturer Name: Diodes Incorporated - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### IC2 — [CP2102N-A02-GQFN28](https://www.flux.ai/vasyl/cp2102n-a02-gqfn28.md) - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/cp2102n-datasheet.pdf - Manufacturer Part Number: CP2102N-A02-GQFN28 - Manufacturer Name: Silicon Labs - Part Type: Integrated Circuit **Pins:** - ~RST [pin 9] - CHR0 [pin 15] - CHR1 [pin 14] - CHREN [pin 13] - CTS [pin 23] - D- [pin 5] - D+ [pin 4] - DCD [pin 1] - DSR [pin 27] - DTR [pin 28] - GND [pin 3] - GND [pin 29] - GPIO.4 [pin 22] - GPIO.5 [pin 21] - GPIO.6 [pin 20] - NC [pin 10] - RI/CLK [pin 2] - RS485/GPIO.2 [pin 17] - RTS [pin 24] - RXD [pin 25] - RXT/GPIO.1 [pin 18] - SUSPEND [pin 12] - SUSPENDb [pin 11] - TXD [pin 26] - TXT/GPIO.0 [pin 19] - USB [pin 8] - VDD [pin 6] - VREGIN [pin 7] - WAKEUP/GPIO.3 [pin 16] ### J1 — [SM06B-SRSS-TB(LF)(SN)](https://www.flux.ai/vasy_skral/sm06b-srss-tblfsn.md) - Manufacturer Name: JST Sales America Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eSH.pdf - Manufacturer Part Number: SM06B-SRSS-TB(LF)(SN) - 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] ### 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 — [S8050](https://www.flux.ai/adrian95/s8050.md) - Manufacturer Part Number: S8050 - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://pdf1.alldatasheet.com/datasheet-pdf/view/33773/WINGS/S8050.html - Manufacturer Name: MDD **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q2 — [S8050](https://www.flux.ai/adrian95/s8050.md) - Manufacturer Part Number: S8050 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Datasheet URL: https://pdf1.alldatasheet.com/datasheet-pdf/view/33773/WINGS/S8050.html - Manufacturer Name: MDD **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q3 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - Manufacturer Part Number: BC33740TA - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q4 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Manufacturer Part Number: BC33740TA - Part Type: Transistor - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q5 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Manufacturer Part Number: BC33740TA - Part Type: Transistor - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q6 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BC33740TA - Part Type: Transistor - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q7 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf - Part Type: Transistor - Manufacturer Part Number: BC33740TA - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q8 — [BC33740TA](https://www.flux.ai/adrian95/bc33740ta.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Manufacturer Part Number: BC33740TA - Part Type: Transistor - Datasheet URL: https://www.verical.com/datasheet/on-semiconductor-bjt---general-purpose-BC33740TA-4544246.pdf **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Part Type: Switch - Manufacturer Name: C&K **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### U1 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33.md) - Datasheet URL: http://www.advanced-monolithic.com/pdf/ds1117.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AMS1117-3.3 - Manufacturer Name: AMS - Symbol Style: Parametric **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U3 — [ESP32-WROOM-32D](https://www.flux.ai/vasyl/esp32-wroom-32d.md) - Part Type: Microcontroller - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ESP32-WROOM-32D - Manufacturer Name: Espressif Systems - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf **Pins:** - 3.3V [pin 2] - AGND [pin 39] - CLK [pin 20] - CMD [pin 19] - EN [pin 3] - GND [pin 38] - GND [pin 15] - 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 32] - RXD0 [pin 34] - SD0 [pin 21] - SD1 [pin 22] - SD2 [pin 17] - SD3 [pin 18] - TXD0 [pin 35] - VN [pin 5] - VP [pin 4] ### USB1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12.md) - Manufacturer Name: Korean Hroparts Elec - Symbol Style: Parametric - Manufacturer Part Number: TYPE-C-31-M-12 - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - 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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/lemike/esp32-devkit1-mike](https://www.flux.ai/lemike/esp32-devkit1-mike).* --- *Generated from [https://www.flux.ai/lemike/esp32-devkit1-mike](https://www.flux.ai/lemike/esp32-devkit1-mike)*