Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-S3-WROOM-1 |
| Display Type | 1.85-inch Capacitive Touch Circular Screen |
| Resolution | 360 x 360 pixels |
| Connectivity | Wi-Fi 2.4GHz & Bluetooth 5 (LE) |
| Flash Memory | 16MB Quad SPI |
| PSRAM | 8MB Octal SPI |
| Audio Interface | I2S with built-in microphone and speaker header |
| Programming Interface | USB Type-C |
| Power Supply | 5V via USB or 3.7V Li-Po Battery |
| Dimensions | 54mm x 54mm x 12mm |
Anonymous
Mar 30, 2026
Rating: 5/5
Smooth Touch and Fast Boot
The capacitive touch is surprisingly accurate for a round screen. Boot times are quick, and the Bluetooth connectivity is stable. Highly recommend for anyone getting into edge AI applications.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for AI Voice Projects
This board is exactly what I needed for my Xiaozhi AI assistant project. The circular screen looks fantastic, and the touch response is very smooth. Setting up the Wi-Fi was straightforward using the Arduino IDE.
Anonymous
Mar 09, 2026
Rating: 4/5
Great hardware, documentation could be better
The ESP32-S3 chip performs well, and the 1.85-inch display is vibrant. However, finding specific pinout diagrams for the audio codec took some digging in the GitHub repo. Once set up, it works flawlessly.
Anonymous
Mar 07, 2026
Rating: 4/5
Good for student projects
We bought ten of these for our university lab. Students love the form factor. The only minor issue is that the speaker header requires a specific impedance match, but the docs clarify this eventually.
Anonymous
Mar 05, 2026
Rating: 5/5
Impressive Audio Quality
I was skeptical about the audio capabilities, but the I2S interface delivers clear sound. Combined with the visual interface, it makes for a great interactive kiosk prototype. Very happy with this purchase.
Anonymous
Mar 05, 2026
Rating: 5/5
Excellent value for money
Considering the inclusion of the high-res circular screen, PSRAM, and flash memory, the price point is unbeatable. I used it to build a smart weather station with voice feedback, and it handled everything easily.
Q: What is the viewing angle of the circular display?
A: The 1.85-inch IPS capacitive touch screen offers a wide viewing angle of approximately 170 degrees, ensuring the display remains clear from various perspectives.
Q: Can I power this directly from a 3.7V Li-Po battery?
A: Absolutely. There is a dedicated JST connector on the board for connecting a single-cell Li-Po battery. The board includes charging circuitry, so you can charge the battery via the USB-C port.
Q: Are example codes available for the Xiaozhi AI integration?
A: Yes, Waveshare provides a comprehensive GitHub repository containing demo code for Xiaozhi AI, including examples for voice recognition, text-to-speech, and UI navigation on the circular screen.
Q: Is the microphone built-in or do I need an external module?
A: The board features a built-in digital microphone connected via I2S. You can start recording audio immediately without needing external components, though headers are provided for external mics if needed.
Q: Does this board support MicroPython out of the box?
A: Yes, the ESP32-S3 chip fully supports MicroPython. You will need to flash the latest firmware image suitable for the specific screen driver configuration, which is available on the Waveshare wiki.
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