ESP32-S3 SuperMini Dev Board WiFi BLE

The ESP32-S3 SuperMini packs a full-featured dual-core development board into one of the smallest footprints in the entire ESP32 family, measuring just 22.52 x 18mm. At its core sits the Espressif ESP32-S3 chip, running a dual-core Xtensa LX7 processor at up to 240MHz with vector extensions suited to lightweight AI and machine learning workloads, giving it noticeably more processing headroom than older single-core ESP32 boards. With 512KB of SRAM and 4MB of flash on board, plus 2MB of embedded PSRAM available once enabled in your build settings, there’s ample room for more demanding sketches, sensor logging, or connected applications.

Wireless connectivity is handled through 802.11 b/g/n WiFi and Bluetooth 5.0 LE, both routed through a built-in PCB antenna, making this board a strong fit for IoT devices, wireless sensors, home automation nodes, and BLE-connected gadgets. Programming and flashing happen entirely over the native USB-C port, since the board uses the ESP32-S3’s built-in USB peripheral instead of a separate USB-to-serial chip, keeping the design compact and driver-free on most systems. An onboard WS2812 addressable RGB LED provides an easy way to add status indication without wiring an external LED.

With 32 GPIO pins (16 ADC-capable) and support for UART, I2C, and SPI, the ESP32-S3 SuperMini gives makers plenty of I/O for sensors, displays, and peripherals despite its tiny size. It’s an excellent choice for space-constrained wearables, compact IoT nodes, and any project that needs real processing power and wireless connectivity without the bulk of a full-size dev board.

Specification:

• MCU : ESP32-S3 (Dual-Core Xtensa LX7)
• Clock Speed : Up to 240MHz
• Flash Memory : 4MB
• SRAM : 512KB (+2MB PSRAM, Disabled by Default)
• GPIO : 32 Pins (16 ADC-Capable)
• Wireless : WiFi 802.11 b/g/n, Bluetooth 5.0 LE
• Antenna : Onboard PCB
• USB : Native USB-C
• Onboard LED : WS2812 Addressable RGB (GPIO48)
• Board Dimensions : 22.52 x 18mm