Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Chipset Options	ESP32-C3, ESP32-S3, ESP32-C6, ESP32-H2
Wireless Connectivity	Wi-Fi 4 (802.11 b/g/n), Bluetooth 5 (LE)
Processor Architecture	RISC-V 32-bit Single-Core or Dual-Core
Flash Memory	4MB or 8MB PSRAM (varies by model)
Operating Voltage	3.3V Logic, 5V Input via USB-C
Interface	USB Type-C for Power and Programming
GPIO Pins	Multiple programmable GPIOs with PWM, I2C, SPI, UART
Dimensions	SuperMini Form Factor (approx. 20mm x 15mm)
Development Environment	Arduino IDE, ESP-IDF, MicroPython, CircuitPython
Onboard Indicators	Power LED, Programmable RGB LED (WS2812 compatible)

6 reviews

Anonymous

Mar 22, 2026

Rating: 4/5

Solid board, needs external battery management

The board itself is fantastic and very fast. Just remember it doesn't have an onboard LiPo charging circuit, so you need to manage your own power source if going portable. Otherwise, it's a powerhouse in a tiny package.

Anonymous

Mar 21, 2026

Rating: 5/5

Best in class for size-to-power ratio

I have tested many ESP32 variants, and these SuperMini versions are now my go-to. The build quality is solid, soldering pads are accessible, and the inclusion of USB-C is a huge plus for modern setups.

Anonymous

Mar 14, 2026

Rating: 5/5

Ideal for learning embedded systems

As a student, this board is perfect. It works seamlessly with the Arduino IDE right out of the box. The dual-core processing on the S3 model allows me to run complex tasks while maintaining a responsive web server interface.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect compact board for IoT projects

The SuperMini form factor is incredible. I used the ESP32-S3 version for a wearable project, and it fits perfectly where larger boards wouldn't. Wi-Fi connection is stable, and the USB-C port makes programming very convenient.

Anonymous

Mar 11, 2026

Rating: 4/5

Great value, minor pin labeling issue

Performance is excellent for the price. The RISC-V architecture handles my sensor data logging without lag. Only giving 4 stars because the silk screen pin labels are a bit small to read without a magnifier, but the documentation online is clear.

Anonymous

Mar 01, 2026

Rating: 5/5

Reliable Bluetooth LE performance

I bought the C3 version specifically for Bluetooth Low Energy beacons. The range is surprisingly good for such a small antenna, and power consumption is low. Highly recommended for home automation sensors.

5 FAQ

Q: Is the ESP32-H2 suitable for Zigbee projects?

A: Yes, the ESP32-H2 supports IEEE 802.15.4 protocols, which includes Zigbee and Thread. It is designed specifically for low-power mesh networking applications, unlike the Wi-Fi focused C3 or S3.

Q: Does this board support MicroPython out of the box?

A: Yes, all models (C3, S3, C6, H2) are fully compatible with MicroPython. You will need to flash the appropriate firmware image first, which can be easily done using tools like esptool.py or the Web Installer.

Q: What is the difference between the C3 and S3 models?

A: The ESP32-S3 features a dual-core processor and additional AI vector instructions, making it better for audio or image processing. The ESP32-C3 is a single-core RISC-V chip that is more cost-effective and sufficient for standard IoT connectivity tasks.

Q: Can I power this directly from a 5V USB charger?

A: Absolutely. The board includes a USB-C port that accepts 5V input and regulates it down to 3.3V for the chip. You can also power it via the 5V and GND pins if not using USB.

Q: Are there any drivers needed for Windows 10/11?

A: Most modern Windows installations will automatically recognize the USB-to-UART bridge. If not, you may need to install the CH343 or CP210x driver depending on the specific batch of the board, links to which are provided in our documentation wiki.

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