ESP32-S3 Supermini Development Kit WiFi & Bluetooth USB-C Dev Board

ESP32-S3 Supermini Development Kit – WiFi & Bluetooth USB-C Dev Board

The ESP32-S3 Supermini is an ultra-compact development board built around Espressif’s powerful ESP32-S3 chip. Featuring a USB-C connector, dual-core Xtensa LX7 processor at up to 240 MHz, and integrated WiFi + BLE 5.0, it packs serious IoT capability into one of the smallest form factors available.

Key Specifications

• Chip: ESP32-S3 (Xtensa LX7 Dual-Core)
• CPU Speed: Up to 240 MHz
• RAM: 512 KB SRAM + 8 MB PSRAM (module dependent)
• Flash: 4 MB / 8 MB onboard
• WiFi: 802.11 b/g/n (2.4 GHz)
• Bluetooth: BLE 5.0 + Bluetooth Mesh
• USB: USB-C (native USB, no external UART chip needed)
• GPIO: Multiple I2C, SPI, UART, ADC, PWM pins
• Operating Voltage: 3.3V logic, 5V USB input

Compatibility & Use Cases

Fully compatible with the Arduino IDE, MicroPython, and ESP-IDF. The native USB port supports USB HID, CDC, and MSC device classes without an external UART chip. Common applications include:

• Compact WiFi/BLE IoT sensor nodes and wearables
• USB HID devices (keyboards, gamepads, MIDI controllers)
• Edge AI and TensorFlow Lite Micro inference
• BLE 5.0 mesh networking and beacon systems
• Miniature home automation and smart device builds

Its tiny footprint makes it ideal for space-constrained enclosures where a full-size ESP32 board won’t fit.

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