Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | ESP32-C3FH4 RISC-V 32-bit single-core |
| Clock Speed | Up to 160 MHz |
| Flash Memory | 4 MB |
| PSRAM | Not included |
| Wireless Connectivity | Wi-Fi 2.4 GHz and Bluetooth 5 (LE) |
| GPIO Pins | 22 programmable GPIOs |
| Interface | USB-to-UART, SPI, I2C, I2S, PWM |
| Operating Voltage | 3.3V logic level |
| Dimensions | 54mm x 25mm x 12mm |
| Compatibility | Arduino IDE, ESP-IDF, MicroPython |
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect for IoT projects
This board is incredibly easy to set up with the Arduino IDE. The RISC-V architecture runs smoothly, and the Bluetooth 5 connectivity is stable for my smart home sensors.
Anonymous
Mar 23, 2026
Rating: 5/5
Ideal for learning embedded systems
As a student, this was the perfect entry point into RISC-V development. It compiles code fast and the Wi-Fi range is surprisingly good for such a small board.
Anonymous
Mar 23, 2026
Rating: 5/5
Exceeded expectations
Fast shipping and the board arrived well-packaged. Flashing firmware was instant. Highly recommend for anyone moving away from older ESP8266 models.
Anonymous
Mar 17, 2026
Rating: 4/5
Solid performance
Works exactly as described. The USB-C connector is a nice touch for modern setups. Only wish it had PSRAM for more complex graphics tasks, but that's not a fault of this specific model.
Anonymous
Mar 16, 2026
Rating: 4/5
Great value, minor documentation gaps
Hardware quality is excellent for the price. Pinout is clear, but I had to dig into the official ESP docs for some specific peripheral configurations. Overall very satisfied.
Anonymous
Mar 11, 2026
Rating: 5/5
Reliable and compact
I've deployed ten of these in a prototype system. They have been running 24/7 without crashes. The power consumption is also very low in sleep mode.
Q: Can I power this board via the 5V pin directly?
A: Yes, there is an onboard LDO regulator. You can supply 5V to the 5V pin, and it will regulate it down to 3.3V for the ESP32-C3 chip.
Q: What is the maximum current output per GPIO pin?
A: Each GPIO pin can source or sink up to 40mA. However, the total current for all ports combined should not exceed the chip's maximum rating to avoid damage.
Q: Is the antenna external or internal?
A: This module features an onboard PCB antenna. There is no connector for an external antenna on this specific version.
Q: Does it work with the standard ESP32 libraries in Arduino?
A: Most libraries are compatible, but you must select the 'Xiao ESP32C3' or generic 'ESP32C3' board manager in the Arduino IDE to ensure the correct core is used.
Q: Does this board support MicroPython out of the box?
A: The board hardware supports MicroPython, but you will need to flash the MicroPython firmware yourself using esptool. It does not come pre-installed.
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