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Espressif ESP32-S3-USB-Bridge image

Espressif ESP32-S3-USB-Bridge

Development Board

Code name: ESP32_S3_USB_BRIDGE
ESP32S3 ESPRESSIF

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

This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.

About Espressif ESP32-S3-USB-Bridge

The ESP32-S3-USB-Bridge is a compact development board based on the ESP32-S3-MINI-1 module. It serves as an alternative to traditional USB-to-UART chips by establishing a bridge between a computer and existing microcontrollers. The board supports multiple functions, including USB-to-UART bridging, JTAG debugging, and acts as a USB composite device supporting various functionalities.

📋 Technical Specifications

Complete technical specification details for Espressif ESP32-S3-USB-Bridge

🛰️ 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 4MB
Architecture xtensa

✨ Features & Pins

Digital IO 12
Analog Input 6
PWM 6
Interrupts 16
Download Full Datasheet

Espressif ESP32-S3-USB-Bridge Pinout Diagram

Complete pin reference for Espressif ESP32-S3-USB-Bridge

Espressif ESP32-S3-USB-Bridge pinout
The ESP32-S3-USB-Bridge features a 12-pin expansion connector providing access to key GPIOs and communication interfaces. Key pins include power supply (3V3 and GND), JTAG pins (TCK, TMS, TDI, TDO), UART pins (TX, RX), and control pins (Boot, Reset). This configuration allows for seamless integration with target chips and peripherals.

Useful Links

Datasheets and resources for Espressif ESP32-S3-USB-Bridge

Board Datasheet

Technical specifications

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Espressif ESP32-S3-USB-Bridge

12
Digital I/O Pins
16
Interrupt Pins
6
Analog Inputs
6
PWM Pins
PinAnalogTouchPWMOther
0A0T0PWM
2PWMTDO
3PWMTDI
4PWMTCK
5PWMTMS
8Reset
9Boot
19USB_D-
20USB_D+
40RX
41TX
42WS2812
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 Espressif ESP32-S3-USB-Bridge

SettingValue
Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
Maximum upload size
2048 KB (2097152 bytes)
Maximum data size
320 KB (327680 bytes)
Configuration Summary

The Espressif ESP32-S3-USB-Bridge uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x1000.

Flash mode: dio | Boot mode: dio

Max sketch size: 2048 KB | Max data size: 320 KB