ESP32-S3 SuperMini Development Board – 4MB Flash, Unsoldered (Compact IoT & Wireless PCB)

SKU: FA1053-1-2
Processor

Xtensa® Dual-Core 32-bit LX7 (Up to 240MHz)
Flash Memory

4MB SPI Flash
PSRAM

520KB Internal SRAM (No external PSRAM)
Wireless

2.4GHz Wi-Fi + Bluetooth 5.0 (LE/Mesh)
USB Port

Type-C (Native USB support)
GPIO Count

13-15 Pins (model dependent, high-density layout)
Voltage Input

5V via Type-C or 3.3V–6V via Vin
Dimensions

Approx. 22.5mm x 18mm
Header Status

Unsoldered / Loose
The ESP32-S3 SuperMini is an ultra-compact, high-performance development board engineered for space-constrained IoT applications. Featuring the powerful ESP32-S3 dual-core processor and a modern Type-C interface, this “SuperMini” variant provides the processing power of a full-sized DevKit in a footprint roughly the size of a postage stamp.
This version arrives unsoldered, offering maximum flexibility for engineers and makers who need to integrate the board directly into custom PCBs or low-profile enclosures.
Product Description
The ESP32-S3 SuperMini represents the pinnacle of miniaturized wireless computing in 2025. Despite its tiny size, it is powered by the Xtensa® 32-bit LX7 dual-core processor, which includes specialized AI vector instructions. This makes the SuperMini capable of handling advanced tasks such as local voice recognition, gesture control, and lightweight neural network inference at the “edge.”
With 4MB of SPI Flash, the board provides ample storage for complex firmware, while the integrated Wi-Fi and Bluetooth 5.0 (LE) ensure robust connectivity. The unsoldered headers allow for a significantly reduced vertical height, making it ideal for wearable technology, hidden smart-home sensors, and drone flight controllers where every millimeter and gram counts.
Key Features
  • Ultra-Compact Footprint: One of the smallest ESP32-S3 boards on the market, designed for ultra-low-profile integration.
  • AI-Enhanced Processor: The S3 architecture accelerates AI workloads, allowing for faster response times in smart applications.
  • Unsoldered for Customization: Arrives with loose headers, allowing you to solder wires directly to the board or mount it flush against another PCB.
  • Modern Type-C Interface: Includes a durable Type-C port for high-speed programming, debugging, and power delivery.
  • Dual-Core Power: 240MHz clock speed enables multitasking without the latency found in single-core mini boards.
  • Native USB OTG: Supports native USB communication, allowing the board to act as a keyboard, mouse, or MIDI controller (HID).
Usage Scenarios
  • Wearable Technology: Its lightweight and thin profile is perfect for smart jewelry, health monitors, and performance trackers.
  • Robotics & Drones: Ideal for secondary flight controllers or wireless telemetry modules where space is at a premium.
  • Smart Home Stealth: Perfect for building hidden sensors (temperature, motion, or door/window) that fit inside standard electrical boxes or wall cavities.
  • Business Prototyping: A low-cost, high-performance unit for B2B teams testing “proof of concept” devices before moving to full-scale SMD manufacturing.
Q: Do I need to solder the board to use it?
This version is unsoldered. To use it with a breadboard or jumper wires, you will need to solder the included headers. However, for many compact projects, users choose to solder thin wires directly to the pads to save space.
Q: Does this board support the Arduino IDE?

Yes. Select “ESP32S3 Dev Module” in the Board Manager. Because it is an S3-based board, ensure you have the latest ESP32 board support package (v2.0.5 or later) installed

Q: Is the 4MB Flash enough for AI projects?

4MB is sufficient for lightweight AI models, voice command recognition (ESP-Skainet), and MicroPython/CircuitPython scripts. For high-resolution camera projects or very large AI models, a board with external PSRAM (N8R2/N16R8) is usually recommended

Q: Can I use this as a USB keyboard or mouse?

Yes. The ESP32-S3 features native USB support. You can use the USBHID library in Arduino to make the SuperMini appear as a keyboard, mouse, or game controller to any PC

Q: How do I power the board besides the USB port?

You can provide 3.3V to 6V to the Vin (or 5V) pin. The onboard regulator will stabilize the voltage to the 3.3V required by the ESP32-S3 chip

Q: Is this board suitable for business purchasing?

Absolutely. The ESP32-S3 SuperMini is an excellent choice for pilot production runs. For businesses, the unsoldered nature makes it very easy to integrate into larger assemblies without the bulk of pre-installed pins

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