Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 / ESP32-S3 / RP2350 (Variant Dependent) |
| Wireless Connectivity | Wi-Fi 4 (802.11 b/g/n) and Bluetooth 5 (LE) |
| Form Factor | XIAO Compact Size (20mm x 17.5mm) |
| CPU Architecture | RISC-V 32-bit Single-Core or Dual-Core |
| Flash Memory | 4MB to 8MB PSRAM options available |
| Operating Voltage | 3.3V Logic Level |
| Interface Support | UART, SPI, I2C, PWM, ADC, DAC |
| Programming Environment | Arduino IDE, MicroPython, CircuitPython, ESP-IDF |
| Onboard Features | RGB LED, Reset Button, Boot Button |
| Power Supply | USB Type-C or Li-Po Battery via JST PH 2.0mm |
Anonymous
Mar 30, 2026
Rating: 5/5
Perfect for compact IoT projects
The XIAO form factor is incredible. I managed to fit this into a wearable device project with ease. The Wi-Fi connection is stable and the battery management works flawlessly.
Anonymous
Mar 30, 2026
Rating: 4/5
Great value, minor pin spacing issue
Excellent board for the price. The processing power is sufficient for most sensor tasks. Only downside is that standard headers need careful soldering due to the tight pitch.
Anonymous
Mar 23, 2026
Rating: 4/5
Good but runs warm under load
Works great for home automation sensors. Note that it gets slightly warm when transmitting Wi-Fi data continuously, but nothing concerning. Adds a small heatsink if pushing limits.
Anonymous
Mar 21, 2026
Rating: 5/5
Reliable Bluetooth performance
Used this for a BLE beacon project. The signal range is impressive for such a small antenna. No dropouts observed during 48-hour continuous testing.
Anonymous
Mar 20, 2026
Rating: 5/5
Seamless Arduino IDE integration
Plug and play with Arduino IDE. Drivers installed instantly on Windows 11. The dual-core performance on the S3 variant is a game changer for multitasking.
Anonymous
Mar 07, 2026
Rating: 5/5
Ideal for learning embedded systems
As a student, this board made learning MicroPython very easy. The documentation is clear, and the community support is huge. Highly recommended for beginners.
Q: Is the RP2350 version compatible with Raspberry Pi Pico code?
A: The RP2350 uses the RP2040 architecture foundation, so much of the C/C++ and MicroPython code is compatible, but you should verify library dependencies for the newer chip features.
Q: Does this board support external antennas for better range?
A: Yes, specific variants of the XIAO ESP32 series include an IPEX connector for attaching external Wi-Fi/Bluetooth antennas. Please check the specific model number in the product title.
Q: Can I power this directly from a 5V USB source?
A: Absolutely. The onboard regulator handles 5V input from the USB-C port efficiently and steps it down to the required 3.3V for the microcontroller.
Q: What is the maximum current draw per GPIO pin?
A: Each GPIO pin can safely source or sink up to 12mA. The total current drawn from all GPIOs combined should not exceed the specified limit in the datasheet to avoid instability.
Q: Does it come with headers pre-soldered?
A: No, this board is typically shipped without headers to maintain its low-profile design. You will need to purchase and solder male or female headers separately based on your project needs.
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