ESP32-S3 Zero Mini Development Board WiFi Bluetooth USB-C ESP32

🔌 ESP32-S3-Zero Mini Development Board – Ultra-Compact WiFi + Bluetooth 5 (LE) | AuscomTech

The ESP32-S3-Zero Mini Development Board is an ultra-compact ESP32-S3-based development platform designed for space-constrained embedded and IoT applications.
Built around the ESP32-S3FH4R2 SoC, this board delivers high performance, native USB support, Wi-Fi, and Bluetooth 5 (LE) in a tiny footprint suitable for prototyping, embedded products, and low-power connected devices.

Its half-hole castellated edges allow direct soldering onto custom PCBs, while still supporting breadboard and header-based development. Native USB-C connectivity enables easy programming without an external USB-to-serial adapter.

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⭐ Key Features

⚡ ESP32-S3 Dual-Core Processor
Powered by the ESP32-S3FH4R2 with Xtensa® 32-bit LX7 dual-core CPU running up to 240 MHz.

📡 Wi-Fi + Bluetooth 5 (LE)
Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth Low Energy for modern IoT connectivity.

🔌 Native USB-C Interface
Built-in USB full-speed controller allows direct programming and debugging over USB-C (no external programmer required).

🧠 On-Board Memory
• 512 KB SRAM
• 384 KB ROM
• 4 MB Flash
• 2 MB PSRAM

📐 Ultra-Small Form Factor
Ideal for compact designs, wearables, embedded controllers, and space-limited projects.

🧱 Castellated Half-Hole Pads
Designed for direct solder-down integration into custom PCBs or carrier boards.

💡 On-Board RGB LED (WS2812)
Integrated addressable RGB LED for status indication, debugging, or UI feedback.

🛠 Wide Peripheral Support
Supports SPI, I²C, UART, I²S, ADC, PWM, and GPIO multiplexing.

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📊 Technical Specifications

Core System

• Microcontroller: ESP32-S3FH4R2

• CPU: Dual-core Xtensa® LX7

• Clock Frequency: Up to 240 MHz

Wireless

• Wi-Fi: 2.4 GHz 802.11 b/g/n

• Bluetooth: Bluetooth 5 (LE)

Memory

• SRAM: 512 KB

• ROM: 384 KB

• Flash: 4 MB

• PSRAM: 2 MB

Power

• USB-C input

• On-board LDO regulator

• Maximum current: up to 800 mA (peak, supplier spec)

Interfaces & I/O

• USB Type-C (native USB)

• Up to 34 GPIOs exposed

• UART, SPI, I²C, I²S, ADC, PWM

• BOOT and RESET buttons

Physical

• Board size: approx. 23.5 × 18.0 mm

• Weight: approx. 3.9 g

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🧩 Typical Applications

• Ultra-compact IoT devices
• Wearables and portable electronics
• Embedded controllers
• USB-based HID or data devices
• Sensor hubs
• Smart home modules
• Custom ESP32-S3 embedded products

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⚠️ Important Notes

• Uses native USB for programming (no USB-to-serial chip required)
• Suitable for Arduino, ESP-IDF, and MicroPython
• WS2812 RGB LED occupies one GPIO pin
• Designed for solder-down or header-based mounting

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📦 Package Includes

• 1 × ESP32-S3-Zero Mini Development Board