Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | Dual-core ESP32-S3 @ 240 MHz |
| Wireless Connectivity | Wi-Fi 2.4GHz and Bluetooth 5.0 (BLE) |
| Flash Memory | 8 MB PSRAM |
| Form Factor | XIAO Series (21mm x 17.5mm) |
| USB Interface | USB Type-C for Power and Data |
| GPIO Pins | 14 x Multifunctional GPIOs |
| Battery Support | LiPo Battery Charging Circuit Included |
| Programming Compatibility | Arduino IDE, MicroPython, CircuitPython, ESP-IDF |
| Operating Voltage | 3.3V Logic Level |
| Package Contents | 1x XIAO ESP32S3 Board, 1x Pin Header Strip |
Anonymous
Mar 30, 2026
Rating: 5/5
Easy to start with MicroPython
Flashed MicroPython in minutes. The USB-C port makes it very convenient to connect to modern laptops. Highly recommended for beginners and pros alike.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for compact IoT projects
This board is incredibly small yet powerful. The dual-core processor handles Wi-Fi and sensor data simultaneously without lag. Setup with Arduino IDE was seamless.
Anonymous
Mar 14, 2026
Rating: 5/5
Best in the XIAO lineup
I have used several XIAO boards, and the S3 version is the most versatile. The Bluetooth 5.0 connection is stable and the battery charging feature saves space on my PCB.
Anonymous
Mar 09, 2026
Rating: 4/5
Excellent board, minor learning curve
The hardware is top-notch. If you are new to ESP32, the pinout might take some getting used to compared to standard Arduino boards, but the documentation helps.
Anonymous
Mar 08, 2026
Rating: 5/5
Great value for the features
Having 8MB of PSRAM on such a tiny board is a game changer. I used it for an image processing prototype and it performed better than expected.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid performance for home automation
Using this to control various sensors in my smart home setup. It connects reliably to my network. Only wish it had a built-in LED matrix, but that's a minor point.
Q: What is the maximum current draw for the 3.3V output pin?
A: The 3.3V LDO regulator on the XIAO ESP32S3 can supply up to 300mA. Please ensure your total peripheral load does not exceed this limit to maintain stability.
Q: Does this board support external antenna connections?
A: No, the Seeed Studio XIAO ESP32S3 uses an onboard ceramic antenna. There is no U.FL connector for an external antenna on this specific model.
Q: Can I power this board directly with a 5V source via the GPIO pins?
A: It is recommended to power the board via the USB-C port or the BAT pad for LiPo batteries. While there is a 5V pin, feeding voltage directly into other GPIO pins can damage the microcontroller.
Q: Is the pin header pre-soldered?
A: No, the board typically comes with a separate pin header strip in the package so you can choose to solder straight headers, right-angle headers, or none at all depending on your project needs.
Q: Is this compatible with the XIAO expansion shields?
A: Yes, the XIAO ESP32S3 follows the standard XIAO form factor and is fully compatible with existing XIAO expansion shields and accessories.
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