# 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:** crisotriger - **Created:** 12/5/2024 - **Last Updated:** 12/5/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### — [NOT Gate](https://www.flux.ai/jbreidfjord-dev/not-gate~pp.md) - High Voltage: 5V **Pins:** - A - Y ### BZ1 — [Buzzer](https://www.flux.ai/jecstronic/buzzer~1j2.md) - Part Type: Buzzer **Pins:** - - - + ### J2 — [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] ### LED1 — [LED simulator template](https://www.flux.ai/nico/example-led-simulator-template~o0.md) - Forward Voltage: 1.70V - Manufacturer Part Number: CTL1206FYW1T - Part Type: LED - Datasheet URL: https://page.venkel.com/hubfs/Resources/Datasheets/LEDs/CTL1206FYW1T.pdf **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED simulator template](https://www.flux.ai/nico/example-led-simulator-template~o0.md) - Datasheet URL: https://page.venkel.com/hubfs/Resources/Datasheets/LEDs/CTL1206FYW1T.pdf - Manufacturer Part Number: CTL1206FYW1T - Forward Voltage: 1.70V - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LED simulator template](https://www.flux.ai/nico/example-led-simulator-template~o0.md) - Part Type: LED - Manufacturer Part Number: CTL1206FYW1T - Forward Voltage: 1.70V - Datasheet URL: https://page.venkel.com/hubfs/Resources/Datasheets/LEDs/CTL1206FYW1T.pdf **Pins:** - A [pin 2] - K [pin 1] ### Q3 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Manufacturer Name: ON Semiconductor - Manufacturer Part Number: 2N3904TFR - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### SW1 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW2 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW3 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW4 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW5 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch - Manufacturer Name: OMRON **Pins:** - P1 [pin 1] - P2 [pin 3] ### SW6 — [Push Button B3FS-1050P](https://www.flux.ai/jharwinbarrozo/push-button-b3fs-1050p~86w.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P **Pins:** - P1 [pin 1] - P2 [pin 3] ### U3 — [ESP32-WROOM-32D](https://www.flux.ai/vasyl/esp32-wroom-32d~7py.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Part Type: Microcontroller - Manufacturer Part Number: ESP32-WROOM-32D **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] ### U4 — [ESP32-WROOM-32D](https://www.flux.ai/vasyl/esp32-wroom-32d~7py.md) - 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 - Part Type: Microcontroller **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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/crisotriger/esp32-wroom-32e-reference-design~6c](https://www.flux.ai/crisotriger/esp32-wroom-32e-reference-design~6c).* --- *Generated from [https://www.flux.ai/crisotriger/esp32-wroom-32e-reference-design~6c](https://www.flux.ai/crisotriger/esp32-wroom-32e-reference-design~6c)*