Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 RISC-V 32-bit |
| Wireless Connectivity | Wi-Fi 4 (802.11 b/g/n) & Bluetooth 5 LE |
| Flash Memory | 4 MB SPI Flash |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB-C |
| GPIO Pins | 22 Programmable GPIOs |
| Interface | USB Type-C for Power and Programming |
| Dimensions | 26mm x 13mm x 3mm (SuperMini form factor) |
| Supported IDEs | Arduino IDE, ESP-IDF, MicroPython |
| Onboard Components | RGB LED, Reset Button, Boot Button |
Anonymous
Mar 30, 2026
Rating: 5/5
Perfect compact board for IoT projects
The SuperMini form factor is incredible. It fits easily into small enclosures where standard dev boards won't go. Wi-Fi connection was stable right out of the box using the Arduino IDE.
Anonymous
Mar 27, 2026
Rating: 5/5
Beginner friendly
As someone new to embedded systems, this board was easy to set up. Plenty of tutorials available online specifically for the C3 chip. Bluetooth pairing worked flawlessly with my phone.
Anonymous
Mar 23, 2026
Rating: 4/5
Great value, minor pin labeling issue
Excellent performance for the price. The RISC-V architecture handles my sensor data logging well. Only downside is the pinout diagram on the back is a bit small to read without magnification.
Anonymous
Mar 17, 2026
Rating: 4/5
Solid performance, runs cool
Been running this continuously for a week monitoring temperature. It stays cool even with Wi-Fi active. The only reason for 4 stars is I wish it had an external antenna connector for longer range.
Anonymous
Mar 07, 2026
Rating: 5/5
Best C3 board I've used
The build quality is surprisingly good for the size. Soldering headers was easy. MicroPython support is excellent, making prototyping very quick. Highly recommended for hobbyists.
Anonymous
Mar 06, 2026
Rating: 5/5
USB-C is a game changer
Finally, a cheap ESP board with a proper USB-C port. No more fiddling with micro-USB cables that don't fit. Programming speed is fast and the onboard RGB LED is a nice touch for debugging.
Q: Can I power this directly from a 3.7V LiPo battery?
A: While the chip operates at 3.3V, this specific board is designed to be powered via the 5V USB-C input which regulates down to 3.3V. For direct LiPo connection, ensure your battery voltage stays within the safe input range of the onboard LDO regulator, typically up to 5.5V, but a dedicated battery management module is recommended for safety.
Q: How many ADC pins are available for analog sensors?
A: The ESP32-C3 has multiple ADC channels, but on this SuperMini breakout, accessibility depends on the specific pinout. Generally, GPIOs 0, 1, 2, 3, and 4 can be used for ADC functions. Please refer to the pinout diagram in the documentation for the exact mapping on this board layout.
Q: Is the USB-C port data capable or charge only?
A: The USB-C port is fully data capable. It uses a built-in USB-to-UART bridge to allow you to flash code and communicate with the serial monitor directly from your computer.
Q: Does it come with headers pre-soldered?
A: No, to keep the profile ultra-low and versatile, this board is shipped without headers. You will need to solder your own male or female headers depending on your project requirements.
Q: Does this board support 5GHz Wi-Fi networks?
A: No, the ESP32-C3 chip only supports 2.4GHz Wi-Fi bands (802.11 b/g/n). It does not support 5GHz networks.
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