ESP32-S3 SuperMini Development Board

Features

• Powered by the Espressif ESP32-S3 dual-core Xtensa LX7 processor.
• Dual-core processor operating up to 240MHz.
• Built-in 2.4GHz Wi-Fi (802.11 b/g/n).
• Bluetooth 5 Low Energy (BLE) support.
• Native USB Type-C interface for programming and power.
• USB OTG support.
• Ultra-compact and lightweight design.
• Low-power operation with multiple sleep modes.
• Integrated PCB antenna.
• Supports AI acceleration and vector instructions.
• Compatible with Arduino IDE, ESP-IDF, and MicroPython.
• Multiple communication interfaces including GPIO, ADC, SPI, I²C, UART, and PWM.

Principle of Operation

The ESP32-S3 SuperMini operates as a programmable embedded controller capable of processing data, controlling external hardware, and communicating wirelessly. User applications are uploaded through the USB Type-C interface using supported development environments such as Arduino IDE or ESP-IDF.

The dual-core Xtensa LX7 processor executes application code while the integrated Wi-Fi and Bluetooth radios provide wireless networking and device communication. Multiple GPIO peripherals allow the board to interface with sensors, displays, motors, relays, and other electronic modules.

Low-power sleep modes significantly reduce current consumption, making the board suitable for battery-powered IoT devices that require long operating life.

Applications

• Internet of Things (IoT)
• Wireless sensor networks
• Home automation
• Robotics
• Wearable electronics
• Industrial monitoring
• Embedded AI applications
• Bluetooth devices
• Wi-Fi data loggers
• Portable embedded systems

Pinout

Wiring

The ESP32-S3 SuperMini is programmed through its USB Type-C connector. External sensors and modules can be connected directly to the GPIO pins using jumper wires.

Library Required

Before programming the ESP32-S3 SuperMini using the Arduino IDE, install the ESP32 board package from Espressif Systems.

• Board Manager URL:
  https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
• Board Package: ESP32 by Espressif Systems
• Built-in Libraries: WiFi, Bluetooth, SPI, Wire, Preferences
  
  

Arduino IDE Setup

Before programming the ESP32-S3 SuperMini using the Arduino IDE, you must install the official ESP32 board support package provided by Espressif Systems.

Step 1: Add ESP32 Board Manager URL

1. Open Arduino IDE.
2. Go to File → Preferences.
3. In the Additional Boards Manager URLs field, add the following URL:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

If you already have other Board Manager URLs, separate multiple URLs using a comma.

Step 2: Install ESP32 Board Package

1. Go to Tools → Board → Boards Manager.
2. Search for ESP32.
3. Install: ESP32 by Espressif Systems

Step 3: Select ESP32-S3 SuperMini Board

1. Connect the ESP32-S3 SuperMini board to your computer using a USB cable.
2. Go to Tools → Board.
3. Select the appropriate ESP32-S3 board option.
4. Recommended selection: ESP32S3 Dev Module

Step 4: Recommended Board Settings

Built-in ESP32 Libraries

The ESP32 Arduino core includes several built-in libraries that can be used without additional installation:

Example Library Include

#include <WiFi.h>
#include <BluetoothSerial.h>
#include <SPI.h>
#include <Wire.h>
#include <Preferences.h>

Notes

• Use a high-quality USB data cable. Some USB cables only provide power and cannot upload code.
• If the board is not detected, install the required USB driver depending on the ESP32-S3 USB interface.
• The ESP32-S3 supports native USB, Wi-Fi, Bluetooth LE, SPI, I2C, and multiple GPIO peripherals.

Example Code

// ESP32-S3 Blink Example

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500);

  digitalWrite(LED_BUILTIN, LOW);
  delay(500);
}

Specifications

Resources

• ESP32-S3 SuperMini Development Board Documentation:
  https://www.espressif.com/en/products/socs/esp32-s3
• ESP32 Arduino Core:
  https://github.com/espressif/arduino-esp32
• ESP32 Arduino Installation Guide:
  https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html
• ESP-IDF Documentation:
  https://docs.espressif.com/projects/esp-idf/
• ESP32-S3 Technical Reference Manual:
  https://www.espressif.com/sites/default/files/documentation/esp32-s3_technical_reference_manual_en.pdf
• ESP32-S3 Datasheet:
  https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf
• Arduino IDE Software:
  https://www.arduino.cc/en/software