Overview

This ultra-compact ESP32-S3 board combines powerful processing with minimal footprint. It features the newest S3 variant with enhanced Bluetooth 5 capabilities, making it ideal for wearables, small IoT devices, and prototype projects.

Quick Overview

Feature Detail
Processor Xtensa Dual-Core 32-bit LX7 @ 240 MHz
RAM 384 KB SRAM
Flash 4 MB
WiFi 802.11 b/g/n
Bluetooth Bluetooth 5.0 LE
Form Factor Ultra-Compact

Key Features

  • Dual-core 32-bit Xtensa LX7 processor @ 240 MHz
  • Integrated WiFi 802.11 b/g/n and Bluetooth 5.0 LE
  • Ultra-compact form factor for wearables
  • 4 MB Flash, 384 KB SRAM
  • USB Type-C connector
  • Low power consumption
  • Arduino IDE and MicroPython support

Technical Specifications

Specification Value
CPU Xtensa Dual-Core 32-bit LX7
Clock Speed 240 MHz
RAM 384 KB SRAM
Flash Memory 4 MB
WiFi 802.11 b/g/n @ 2.4 GHz
Bluetooth v5.0 LE
GPIO Pins Multiple I/O
Operating Temp 0°C to 40°C

Getting Started

  1. Connect USB Type-C
  2. Install Arduino IDE with ESP32-S3 support
  3. Select "ESP32-S3" from board menu
  4. Upload sketches and start prototyping

Applications

  • Wearable devices
  • Compact IoT sensors
  • Bluetooth beacons
  • Personal tracking devices
  • Embedded systems with size constraints

Revision History

Version Date Notes
v1.0 2026-06 Initial entry