Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Microcontroller	ESP32-C3FH4
CPU Architecture	32-bit RISC-V Single-core
Clock Speed	160 MHz
Flash Memory	4 MB
SRAM	400 KB
Wireless Connectivity	Wi-Fi 4 (802.11 b/g/n) & Bluetooth 5 (LE)
GPIO Pins	22 Programmable GPIOs
Interface	USB Type-C for Power and Programming
Operating Voltage	3.3V Logic, 5V Input via USB
Dimensions	20mm x 17mm x 3mm (SuperMini Form Factor)

6 reviews

Anonymous

Mar 23, 2026

Rating: 4/5

Solid performance, runs a bit warm

The board performs well under load, though I noticed it gets slightly warm when transmitting Wi-Fi data continuously at max power. For intermittent sensor readings, it stays cool. Great little device overall.

Anonymous

Mar 21, 2026

Rating: 5/5

Compact powerhouse

Used this to control a small rover. The number of GPIOs available on such a small board is impressive. Battery life is good thanks to the deep sleep modes of the C3 chip. Will definitely buy more.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect size for wearable projects

The SuperMini form factor is exactly what I needed for my smart watch project. It's tiny but packs all the power of the standard ESP32-C3. Wi-Fi connection is stable and the USB-C port makes programming a breeze.

Anonymous

Mar 09, 2026

Rating: 4/5

Great board, minor pin labeling issue

Excellent performance and the RISC-V architecture runs very efficiently. My only complaint is that the pinout silkscreen is a bit small to read without a magnifier. Otherwise, it works flawlessly with Arduino IDE and ESP-IDF.

Anonymous

Mar 02, 2026

Rating: 5/5

Best value for money

I bought five of these for a home automation sensor network. They are incredibly cheap compared to other boards with similar specs. Bluetooth LE pairing is fast and reliable. Highly recommended for beginners and pros alike.

Anonymous

Mar 01, 2026

Rating: 5/5

Easy to get started

As someone new to embedded systems, this board was very forgiving. The community support is huge, so finding example code for the C3 chip was easy. It connects to my laptop instantly via USB-C.

5 FAQ

Q: Does it come with headers soldered?

A: No, to maintain the compact SuperMini profile, this board is shipped without pre-soldered headers. You will need to solder your own pin headers or socket strips if you plan to use it on a breadboard.

Q: Is this board compatible with the Arduino IDE?

A: Yes, this ESP32-C3 board is fully compatible with the Arduino IDE. You simply need to install the ESP32 board package by Espressif in your board manager and select 'Xiao ESP32C3' or the specific generic ESP32-C3 option.

Q: Does it support external antennas?

A: This specific SuperMini model uses an onboard PCB antenna for both Wi-Fi and Bluetooth. It does not have a connector for an external antenna, but the onboard signal strength is sufficient for most indoor applications.

Q: Can I power this board with a LiPo battery directly?

A: No, you should not connect a LiPo battery directly to the 5V or 3.3V pins. This board lacks an onboard LiPo charging circuit. You must use a separate LiPo charger module or a battery with a regulated 5V output connected to the 5V pin.

Q: What is the maximum current this board can supply to peripherals?

A: The 3.3V pin can typically supply up to 500mA depending on the USB source, but it is recommended to keep the draw under 300mA for stability. Individual GPIO pins should not exceed 12mA each.

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