Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 |
| Wireless Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 5 (LE) |
| Flash Memory | 4 MB |
| SRAM | 400 KB |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB-C |
| Digital I/O Pins | 11 |
| Analog Input Pins | 4 (12-bit ADC) |
| Dimensions | 21 x 17.5 mm |
| Connector Type | USB Type-C |
Anonymous
Mar 29, 2026
Rating: 5/5
Perfect for compact IoT projects
This board is incredibly small yet powerful. The ESP32-C3 chip handles Wi-Fi connectivity smoothly, and the USB-C port makes programming a breeze. Highly recommended for wearable tech.
Anonymous
Mar 28, 2026
Rating: 4/5
Great value, minor pin limitation
Excellent performance for the price. The only downside is the limited number of GPIO pins compared to larger boards, but that's expected given the form factor. Works great with Arduino IDE.
Anonymous
Mar 22, 2026
Rating: 4/5
Solid performance, runs a bit warm
The processing power is impressive for such a tiny board. It does get slightly warm when using Wi-Fi continuously, but nothing concerning. Good build quality overall.
Anonymous
Mar 20, 2026
Rating: 5/5
Reliable and fast
Boot times are quick, and the Bluetooth LE support is stable. I used this for a home automation sensor node, and it has been running without issues for weeks.
Anonymous
Mar 18, 2026
Rating: 5/5
Best thumb-sized board available
I've tried several similar boards, and this genuine Xiao ESP32C3 offers the best stability. The soldering pads are well-spaced for such a small device. Will buy more.
Anonymous
Mar 12, 2026
Rating: 5/5
Ideal for learning embedded systems
As a beginner, I found this board very easy to set up. The community support is huge, and there are plenty of tutorials available. The size makes it easy to fit into small enclosures.
Q: Are there any built-in LEDs on the board?
A: Yes, there is a built-in WS2812 RGB LED connected to GPIO2, which allows you to create various lighting effects without needing external components.
Q: What is the maximum current draw for the 3.3V pin?
A: The onboard LDO regulator can supply up to 500mA, but we recommend keeping the load on the 3.3V pin under 200mA for stable operation and to prevent overheating.
Q: Can I power this board with a battery directly?
A: You should not connect a battery directly to the 5V pin unless it is regulated. For LiPo batteries, we recommend using a dedicated charging module or connecting a regulated 3.3V-5V source to the VIN or 5V pin.
Q: Is this board compatible with the standard Arduino IDE?
A: Yes, this board is fully compatible with the Arduino IDE. You simply need to install the ESP32 board manager package and select 'Xiao ESP32C3' from the board list.
Q: Does it support MicroPython or CircuitPython?
A: Absolutely. The ESP32-C3 chip supports both MicroPython and CircuitPython. You can flash the firmware using tools like esptool.py or the web-based installer.
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