Specifications

• MCU: ESP32-S3 (Xtensa® 32-bit LX7, dual-core)
• CPU frequency: Up to 240 MHz
• Wireless:
• Wi-Fi 2.4 GHz (802.11 b/g/n)
• Bluetooth Low Energy (BLE 5.0)
• USB: Native USB-OTG (USB-CDC / HID supported)
• USB connector: USB Type-C
• Operating voltage: 3.3 V
• Power input: 5 V via USB
• GPIO: Multiple programmable GPIOs (S3 series)
• Interfaces: UART, SPI, I2C, I2S, PWM, ADC
• Buttons: BOOT, RESET
• Form factor: Super-mini, castellated pads / pin pads
• PCB material: FR-4

The ESP32 Supermini Development Board series offers high-performance wireless microcontroller solutions in an ultra-compact form factor. Available in ESP32-C3, ESP32-S3, ESP32-H2, and ESP32-C6 variants, these boards are designed for low-power IoT, smart wearables, home automation, and embedded system development.

Each variant delivers reliable processing, integrated WiFi and/or Bluetooth, rich GPIO support, and advanced security features. With support for Arduino IDE and ESP-IDF, these boards are perfect for beginners, students, and professional developers looking for compact yet powerful wireless platforms.

Features

• Super-compact size for tight enclosures
• ESP32-S3 dual-core performance
• Native USB (no external USB-UART needed)
• Supports USB-HID (keyboard, mouse, joystick)
• Low power operation for battery projects
• Breadboard-friendly / easy to embed on custom PCBs
• Compatible with Arduino IDE, ESP-IDF, MicroPython

Applications

• Wearables and compact IoT devices
• USB-HID projects (keyboard, mouse, controllers)
• Smart home sensors and controllers
• Robotics and automation modules
• Custom embedded products
• Educational and rapid prototyping
• Space-constrained commercial designs