Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 or ESP32-S3 (Model Dependent) |
| Wireless Connectivity | Wi-Fi 4 (802.11 b/g/n) and Bluetooth 5/Bluetooth Mesh |
| Form Factor | XIAO Series Compact Size (21mm x 17.5mm) |
| CPU Frequency | Up to 240 MHz |
| Flash Memory | 4 MB PSRAM (varies by specific model) |
| GPIO Pins | 11 x PWM, 4 x ADC, 1 x DAC, 1 x I2C, 1 x UART, 1 x SPI |
| Interface | USB Type-C for Programming and Power |
| Power Management | Low-power sleep modes with battery charging support |
| Compatibility | Arduino IDE, MicroPython, CircuitPython, ESP-IDF |
| Operating Voltage | 3.3V Logic Level |
Anonymous
Mar 31, 2026
Rating: 4/5
Great board, minor pin labeling issue
Excellent performance and the dual-mode Bluetooth/WiFi works flawlessly. My only critique is that the pinout silkscreen is very tiny, so you definitely need a magnifier or the diagram handy. Otherwise, highly recommended.
Anonymous
Mar 19, 2026
Rating: 5/5
Best value in the XIAO series
I've tried several boards in this form factor, and the Seeed Studio version offers the best build quality. It connects instantly to my home network and handles MQTT messages without lag.
Anonymous
Mar 13, 2026
Rating: 4/5
Solid performance for motor control
Used this to control a small drone flight controller. The PWM output is stable, and the processing speed is sufficient for basic stabilization algorithms. Wish it had a bit more RAM for complex logging, but for the price, it's unbeatable.
Anonymous
Mar 12, 2026
Rating: 5/5
Ideal for solar sensors
The deep sleep current draw is remarkably low. I paired this with a small solar panel and a LiPo battery, and it has been running outdoors for months without intervention. Highly efficient.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for compact IoT projects
The XIAO ESP32C3 is incredibly small yet powerful. I used it for a wearable sensor project, and the battery life is impressive thanks to the low-power modes. The USB-C connection makes programming a breeze.
Anonymous
Mar 07, 2026
Rating: 5/5
Beginner friendly
As someone new to embedded systems, I found this board easy to set up with the Arduino IDE. The community support is huge, and there are plenty of tutorials specifically for the XIAO form factor.
Q: What is the maximum current draw per GPIO pin?
A: Each GPIO pin can source or sink up to 12mA safely. The total current drawn from all IO ports combined should not exceed the limits specified in the ESP32-C3/S3 datasheet to avoid damaging the chip.
Q: Does this board support external antennas for better range?
A: This specific XIAO model features an onboard ceramic antenna. While it does not have a u.FL connector for an external antenna, the onboard antenna provides sufficient range for most indoor and short-range outdoor applications.
Q: Does it come with headers pre-soldered?
A: No, the board is typically shipped without headers to maintain its ultra-compact profile and allow for flexible mounting options. You will need to solder your own male or female headers depending on your project needs.
Q: Can I power this directly from a 5V USB source?
A: Yes, you can power the board via the USB Type-C port which supplies 5V. The board includes an onboard regulator to step this down to the required 3.3V for the microcontroller. Do not apply 5V directly to the 3.3V pin.
Q: Is this compatible with the XIAO expansion shields?
A: Absolutely. The XIAO ESP32C3/S3 follows the standard XIAO pinout layout, making it fully compatible with all existing XIAO expansion boards and sensors designed for the series.
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