
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
Quick Setup
Copy-paste configs for ESP32-S3-USB-OTG - auto‑generated from this board's exact hardware specs.
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.
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.
[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 = 8MBThe board value is a close generic match - check PlatformIO board registry for an exact fit.
esp32:
board: esp32-s3-devkitc-1
framework:
type: arduino # or "esp-idf"
# ESP32-S3-USB-OTG - 240 MHz ESP32S3
# Flash: 8MB | USB: N/APaste into your device's .yaml. See ESPHome ESP32 docs for full options.
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.binInstall: pip install esptool - replace firmware.bin with your binary - bootloader at 0x0
ESP32-S3-USB-OTG Additional Information
More details about ESP32-S3-USB-OTG

Useful Links
Datasheets and resources for ESP32-S3-USB-OTG
Pin Mappings
Complete pinout and GPIO mapping for ESP32-S3-USB-OTG
| 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 |
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) |
The ESP32-S3-USB-OTG uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x0.
Flash mode: dio | Boot mode: qio
Max sketch size: 1280 KB | Max data size: 320 KB
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