Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Microcontroller	ESP32-C3FH4
CPU Core	32-bit RISC-V single-core processor
Clock Speed	Up to 160 MHz
Flash Memory	4 MB
SRAM	400 KB
Wireless Connectivity	Wi-Fi 802.11 b/g/n and Bluetooth 5 (LE)
GPIO Pins	22 programmable GPIOs
Interface	USB Type-C for power and programming
Operating Voltage	3.3V
Dimensions	SuperMini form factor (approx. 20mm x 17mm)

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Best mini ESP32 I've used

The form factor is unbeatable. I fit three of these into a small wearable device. Power consumption is also quite low in deep sleep mode. Will buy more.

Anonymous

Mar 22, 2026

Rating: 5/5

Ideal for learning embedded systems

Bought this for my university project. It works seamlessly with Arduino IDE and ESP-IDF. The Bluetooth Low Energy feature worked perfectly for my mobile app integration.

Anonymous

Mar 22, 2026

Rating: 5/5

Reliable and fast

Using it to control smart lights in my home. The boot time is fast, and it reconnects to Wi-Fi instantly after power cycles. Very satisfied with the build quality.

Anonymous

Mar 19, 2026

Rating: 4/5

Good board, needs external antenna for long range

For general indoor use, the onboard antenna is fine. However, if you need long-range communication, you might want to look for a version with an external antenna connector. Otherwise, solid hardware.

Anonymous

Mar 14, 2026

Rating: 4/5

Great value, minor pin labeling issue

The performance is excellent for the price. The RISC-V core handles my sensor data logging without issues. Only downside is the pin labels are a bit small to read without a magnifier.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for compact IoT projects

This SuperMini board is incredibly small yet powerful. The USB-C connection makes programming a breeze, and the Wi-Fi connectivity is stable. Highly recommended for anyone needing a tiny footprint.

5 FAQ

Q: How do I enter download mode if the auto-detect fails?

A: To manually enter download mode, hold down the BOOT button while pressing and releasing the RESET button. Then release the BOOT button. The device should now be ready for flashing.

Q: Does it support MicroPython?

A: Absolutely! You can flash MicroPython firmware onto the ESP32-C3. There are many pre-built binaries available online specifically for the C3 architecture.

Q: What is the maximum current this board can supply on the 3.3V pin?

A: The onboard LDO regulator can typically supply up to 300mA-500mA depending on the specific batch and heat dissipation. For high-power peripherals, we recommend using an external power source.

Q: Can I power this board via the VIN pin instead of USB?

A: Yes, you can power the board via the VIN pin. The acceptable input voltage range is typically 3.3V to 5V. Please ensure polarity is correct to avoid damaging the board.

Q: Is this board compatible with the Arduino IDE?

A: Yes, the ESP32-C3 SuperMini is fully compatible with the Arduino IDE. You just need to install the ESP32 board manager package and select the 'Xiao ESP32C3' or generic 'ESP32C3 Dev Module' depending on your specific setup.

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