ESP32-S3-USB-OTG

Development Board

Code name: ESP32_S3_USB_OTG

ESP32-S3-USB-OTG is a development board based on the ESP32S3 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.

About ESP32-S3-USB-OTG

A development board by Espressif focusing on USB-OTG functionality, suitable for applications like video streaming over Wi-Fi and connecting to wireless USB devices.

Technical Specifications

Complete technical specification details for ESP32-S3-USB-OTG

Connectivity

WiFi 802.11 b/g/n (2.4 GHz)

Bluetooth 5.0

BLE 5.0

Microcontroller

Model esp32s3

Clock Speed 240 MHz

Flash Size 8MB

Architecture xtensa

✨ Features & Pins

Digital IO 48

Analog Input 20

PWM 34

Interrupts 46

Quick Setup

Copy-paste configs for ESP32-S3-USB-OTG - auto‑generated from this board's exact hardware specs.

ESP32S3 240 MHz 8MB DIO Xtensa

In Arduino IDE 2 select Esp32 S3 Usb Otg from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 8MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Esp32 S3 Usb Otg

CPU Frequency 240 MHz

Flash Size 8MB

Flash Mode DIO

Upload Speed 921600

Architecture Xtensa

In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Esp32 S3 Usb Otg" for the ESP32-S3-USB-OTG.

platformio.ini


[env:esp32s3usbotg]
platform  = espressif32
board     = esp32-s3-devkitm-1
framework = arduino

; Exact hardware config for ESP32-S3-USB-OTG
board_build.mcu        = esp32s3
board_build.f_cpu      = 240000000L
board_build.flash_size = 8MB
board_build.flash_mode = dio
board_upload.flash_size = 8MB

The board value is a close generic match - check PlatformIO board registry for an exact fit.

esp32: block (YAML)


esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: arduino   # or "esp-idf"

# ESP32-S3-USB-OTG - 240 MHz ESP32S3
# Flash: 8MB | USB: N/A

Paste into your device's .yaml. See ESPHome ESP32 docs for full options.

esptool.py - flash command


esptool.py \
  --chip esp32s3 \
  --baud 921600 \
  write_flash \
    --flash_mode dio \
    --flash_size 8MB \
    0x0 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x0

ESP32-S3-USB-OTG Pinout Diagram

Complete pin reference for ESP32-S3-USB-OTG

ESP32-S3-USB-OTG Additional Information

More details about ESP32-S3-USB-OTG

Useful Links

Datasheets and resources for ESP32-S3-USB-OTG

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for ESP32-S3-USB-OTG

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM	Other
0				BUTTON_OK
1	A0		PWM	HOST_VOLTS
2	A1		PWM	BAT_VOLTS
3	A2	T3	PWM
4			PWM	LCD_DC
5			PWM	LCD_CS
6			PWM	LCD_CLK
7			PWM	LCD_MOSI
8			PWM	LCD_RST
9			PWM	LCD_BL
10			PWM	BUTTON_UP
11			PWM	BUTTON_DOWN
12			PWM	DEV_VBUS_EN
13			PWM	BOOST_EN
14			PWM	BUTTON_MENU
15			PWM	LED_GREEN
16			PWM	LED_YELLOW
17			PWM	LIMIT_EN
18			PWM	USB_HOST_EN
19			PWM	USB_DN
20			PWM	USB_DP
21			PWM	OVER_CURRENT
33			PWM	SDMMC_D2
34			PWM	SS SDMMC_D3
35			PWM	MOSI SDMMC_CMD
36			PWM	SCK SDMMC_CLK
37			PWM	MISO SDMMC_D0
38			PWM	SDMMC_D1
39			PWM	MTCK
40			PWM	MTDO
41			PWM	MTDI
42			PWM	MTMS
43			PWM	TX
44			PWM	RX
45			PWM	SDA
46				SCL
-1				LCD_MISO

Legend

A0 Analog input

T0 Touch sensor

PWM PWM capable

RX/TX Serial pins

LED Built-in LED

# Pin number

Default Tools & Configuration

Build and upload settings for ESP32-S3-USB-OTG

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x0`
Flash mode	dio
Boot mode	qio
Maximum upload size	1280 KB (1310720 bytes)
Maximum data size	320 KB (327680 bytes)