Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 (RISC-V 32-bit) |
| Display Type | 0.42-inch OLED Screen |
| Connectivity | Wi-Fi 2.4 GHz and Bluetooth 5 (LE) |
| Antenna Type | Integrated Ceramic Antenna |
| Flash Memory | 4 MB SPI Flash |
| Operating Voltage | 3.3V Logic Level |
| Input Voltage | 5V via USB-C Port |
| GPIO Pins | 22 Programmable GPIOs |
| Programming Interface | USB-to-UART Bridge included |
| Dimensions | 55mm x 25mm x 12mm |
Anonymous
Mar 28, 2026
Rating: 5/5
Compact and powerful
Replaced my old ESP8266 projects with this. The extra RAM and the display make it superior for standalone applications where a phone isn't nearby.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for compact IoT projects
The built-in OLED screen is a game changer for debugging without needing a serial monitor. The ceramic antenna provides stable Wi-Fi connectivity in my smart home setup.
Anonymous
Mar 21, 2026
Rating: 4/5
Great value, minor pin labeling issue
Excellent board for the price. The RISC-V architecture is fast. Only downside is the silk screen for some GPIO pins is a bit small to read without a magnifier.
Anonymous
Mar 19, 2026
Rating: 5/5
Easy to get started with Arduino IDE
I was able to upload my first sketch within minutes. The USB-C connection is very convenient compared to older micro-USB boards.
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable Bluetooth performance
Using this for a BLE sensor node. The connection range is impressive for such a small form factor, and the low power consumption is exactly what I needed.
Anonymous
Mar 10, 2026
Rating: 4/5
Good documentation support
Found plenty of examples online for the ESP32-C3. The screen library took a little tweaking to get right, but once configured, it works smoothly.
Q: Can I power this board with a 3.7V LiPo battery directly?
A: No, you should not connect a LiPo battery directly to the 5V or 3.3V pins. This board lacks a dedicated LiPo charging circuit. Use a regulated 5V source or a separate battery management module.
Q: What is the resolution of the 0.42-inch OLED screen?
A: The integrated OLED display has a resolution of 72x40 pixels, which is ideal for displaying status icons, small text, or simple graphs.
Q: Which drivers are needed for the USB-C port on Windows?
A: Most modern Windows 10/11 systems will automatically recognize the CH343 or CP210x bridge used on this board. If not, please download the specific driver from the link in our user manual.
Q: Is the antenna detachable?
A: No, the ceramic antenna is integrated directly onto the PCB to save space and improve durability. It cannot be removed or replaced with an external connector.
Q: Does this board support MicroPython?
A: Yes, the ESP32-C3 chip fully supports MicroPython. You can flash the firmware using esptool.py just like standard ESP32 boards.
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