Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3FH4 |
| Flash Memory | 4MB SPI Flash |
| Wireless Connectivity | 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) |
| CPU Architecture | 32-bit RISC-V Single-core |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB-C or VIN pin |
| GPIO Pins | 22 Programmable GPIOs |
| Interface | USB-to-UART built-in (CH343) |
| Dimensions | 53mm x 23mm x 12mm |
| Compatibility | Arduino IDE, ESP-IDF, MicroPython |
Anonymous
Mar 29, 2026
Rating: 4/5
Great value, minor documentation gaps
The hardware quality is solid and the RISC-V core performs well. I deducted one star because the pinout diagram on the box was slightly faded, but the online docs compensated for it.
Anonymous
Mar 17, 2026
Rating: 4/5
Reliable for prototyping
We used five of these for a quick proof-of-concept at work. They remained stable over 48 hours of continuous testing. The only downside is the lack of a battery connector header, requiring soldering.
Anonymous
Mar 15, 2026
Rating: 5/5
Best starter board for ESP32-C3
As someone new to embedded systems, I found the community support for this specific chip excellent. It uploaded my first blink sketch in seconds without any driver issues on Windows 11.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for IoT projects
This board is incredibly easy to set up. The USB-C connection works flawlessly with my laptop, and the Wi-Fi range is surprisingly good for such a small form factor. Highly recommended for beginners.
Anonymous
Mar 06, 2026
Rating: 5/5
Compact and powerful
Don't let the size fool you; this thing packs a punch. The 4MB flash is sufficient for most OTA update scenarios, and the signal strength rivals boards twice its size.
Anonymous
Mar 04, 2026
Rating: 5/5
Bluetooth LE works out of the box
I needed a board specifically for Bluetooth Low Energy sensors, and this delivered immediately. Pairing was instant, and the battery consumption is very low during sleep modes.
Q: What is the maximum current draw 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 CH343 driver automatically installed on macOS?
A: Most modern macOS versions recognize it automatically. If not, you may need to install the latest WCH USB-to-UART drivers from their official website.
Q: Does this board support 5GHz Wi-Fi networks?
A: No, the ESP32-C3 chip only supports 2.4GHz Wi-Fi bands. It does not have 5GHz capability.
Q: Does this come with pre-soldered headers?
A: This specific model usually ships without headers soldered to allow for flexible mounting options. You will need to solder them yourself if you plan to use it on a breadboard.
Q: Can I power this board directly with a 3.7V LiPo battery?
A: Yes, you can connect a LiPo battery to the BAT pins if you solder a header there, or use the 5V VIN pin which has a regulator. Please ensure voltage does not exceed specifications.
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