# 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:** ding888chen
- **Created:** 12/6/2024
- **Last Updated:** 12/6/2024
- **Visibility:** Public
- **License:** https://creativecommons\.org/licenses/by/4\.0/

## Key Components

### BOOT — [PTS815](https://flux.ai/vasy_skral/pts815~6b.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://flux.ai/jecstronic/1n5819hw-7-f~x5v.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Diode
- Manufacturer Name: Diodes Incorporated
- Manufacturer Part Number: 1N5819HW\-7\-F
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/ds30217\.pdf

**Pins:**
- A [pin 2]
- K [pin 1]

### D2 — [WE\-TVS\-82400102](https://flux.ai/vasy_skral/we-tvs-82400102~xt.md)

- Datasheet URL: https://katalog\.we\-online\.de/pbs/datasheet/82400102\.pdf
- Part Type: Protection
- Manufacturer Name: Würth Elektronik
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: 82400102

**Pins:**
- GND [pin 2]
- IO1 [pin 6]
- IO1 [pin 1]
- IO2 [pin 4]
- IO2 [pin 3]
- VDD [pin 5]

### IC1 — [CH340C](https://flux.ai/vasyl/ch340c~qf3.md)

- Datasheet URL: https://datasheet\.lcsc\.com/szlcsc/Jiangsu\-Qin\-Heng\-CH340C\_C84681\.pdf
- Part Type: Integrated Circuit
- Manufacturer Name: Wah
- Manufacturer Part Number: CH340C

**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]

### J1 — [Pin Header 01x16 2\.54mm Vertical](https://flux.ai/vasy_skral/pin-header-01x16-2p54mm-vertical~1qc.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector

**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://flux.ai/vasy_skral/pin-header-01x16-2p54mm-vertical~1qc.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector

**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]

### PWR — [LED\-0805\-Template\-2](https://flux.ai/vasy_skral/led-0805-template-2~uu0.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: LED

**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
- Part Type: Transistor
- Manufacturer Name: onsemi
- Datasheet URL: https://www\.onsemi\.com/pdf/datasheet/bss138\-d\.pdf

**Pins:**
- D
- G
- S

### RST — [PTS815](https://flux.ai/vasy_skral/pts815~6b.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]

### U1 — [AMS1117\-3\.3](https://flux.ai/vasy_skral/ams1117-33~34.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: AMS 
- Part Type: Integrated Circuit
- Symbol Style: Parametric
- Manufacturer Part Number: AMS1117\-3\.3
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1811021917\_Advanced\-Monolithic\-Systems\-AMS1117\_C6188\.pdf

**Pins:**
- GND [pin 1]
- TAB\(VOUT\) [pin 4]
- VIN [pin 3]
- VOUT [pin 2]

### U2 — [ESP32\-WROOM\-32E](https://flux.ai/vasy_skral/esp32-wroom-32e~7ed.md)

- Datasheet URL: https://www\.espressif\.com/sites/default/files/documentation/esp32\-wroom\-32e\_esp32\-wroom\-32ue\_datasheet\_en\.pdf
- Part Type: Integrated Circuit
- 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]

### USB1 — [TYPE\-C\-31\-M\-12](https://flux.ai/vasy_skral/type-c-31-m-12~75f.md)

- Manufacturer Name: Korean Hroparts Elec
- 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

**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://flux\.ai/ding888chen/esp32\-wroom\-32e\-reference\-design\~um](https://flux.ai/ding888chen/esp32-wroom-32e-reference-design~um).*

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*Generated from [https://flux\.ai/ding888chen/esp32\-wroom\-32e\-reference\-design\~um](https://flux.ai/ding888chen/esp32-wroom-32e-reference-design~um)*