# 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 #referenceDesign #simple-embedded #espressif #template #reference-design ## Project Details - **Owner:** ereu28 - **Created:** 7/4/2024 - **Last Updated:** 7/4/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### — [QWIIC I2C JST Connector](https://www.flux.ai/vasy_skral/qwiic-i2c-jst-connector~d55.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/JST%20PDFs/SR%20Connector.pdf - Part Type: Connector - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: SM04B-SRSS-TB **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### Anemometro — [S3B-XH-A(LF)(SN)](https://www.flux.ai/adrian95/s3b-xh-alfsn~2zy.md) - Manufacturer Part Number: S3B-XH-A(LF)(SN) - Manufacturer Name: JST Sales America Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eXH.pdf - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### Indicador Batería — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Part Type: Connector - Manufacturer Name: Würth Elektrik - Manufacturer Part Number: 691137710002 **Pins:** - P1 [pin 1] - P2 [pin 2] ### K1 — [KY-019](https://www.flux.ai/vasyl/ky-019~t4.md) - Manufacturer Part Number: KY-019 - Part Type: Relay Module - Manufacturer Name: Keyes SR1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf **Pins:** - COM [pin COM] - GND [pin A2] - NC [pin NC] - NO [pin NO] - Signal - VCC [pin A1] ### M1 — [DC Motor](https://www.flux.ai/vasyl/dc-motor~ku.md) **Pins:** - - - + ### Puente H — [L298N - 5083446](https://www.flux.ai/lwcassid/l298n-5083446~32.md) - Manufacturer Name: STMicroelectronics NV - Manufacturer Part Number: L298N **Pins:** - ENA - ENB - GND - IN1 - IN2 - IN3 - IN4 - OUT1 - OUT2 - OUT3 - OUT4 - SENSE_A - SENSE_B - VS - VSS ### Q3 — [PN2222ATF](https://www.flux.ai/jecstronic/pn2222atf~d16.md) - Manufacturer Part Number: PN2222ATF - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pn2222a-d.pdf - Manufacturer Name: onsemi **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### S1 — [KMR231NGLFS](https://www.flux.ai/jecstronic/kmr231nglfs~8md.md) - Manufacturer Part Number: KMR231NGLFS - Part Type: Switch - Manufacturer Name: C&K - Datasheet URL: https://www.snapeda.com/parts/KMR231NGLFS/C&K/datasheet/ **Pins:** - ~ - ~ - ~ - ~ ### S2 — [KMR231NGLFS](https://www.flux.ai/jecstronic/kmr231nglfs~8md.md) - Datasheet URL: https://www.snapeda.com/parts/KMR231NGLFS/C&K/datasheet/ - Manufacturer Part Number: KMR231NGLFS - Part Type: Switch - Manufacturer Name: C&K **Pins:** - ~ - ~ - ~ - ~ ### Servo 1 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.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] ### Servo 2 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.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] ### Step-Down — [XL4015](https://www.flux.ai/jecstronic/xl4015~qk.md) - Datasheet URL: https://www.snapeda.com/parts/XL4015/XLSEMI/datasheet/ - Manufacturer Name: XLSEMI - Part Type: Converter - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: XL4015 **Pins:** - FB [pin 2] - GND [pin 1] - SW [pin 3] - SW [pin 3.1] - VC [pin 4] - VIN [pin 5] ### U1 — [AHT20+BMP280 Module](https://www.flux.ai/vasyl/aht20plusbmp280-module~rdq.md) - Part Type: Module - Datasheet URL: https://files.seeedstudio.com/wiki/Grove-AHT20_I2C_Industrial_Grade_Temperature_and_Humidity_Sensor/AHT20-datasheet-2020-4-16.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 2] - SCL [pin 1] - SDA [pin 3] - VDD [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ereu28/esp32-wroom-32e-reference-design~ms](https://www.flux.ai/ereu28/esp32-wroom-32e-reference-design~ms).* --- *Generated from [https://www.flux.ai/ereu28/esp32-wroom-32e-reference-design~ms](https://www.flux.ai/ereu28/esp32-wroom-32e-reference-design~ms)*