Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | ESP32-S3 Dual-Core Xtensa LX7 |
| Cellular Network | 4G LTE Cat-1 Global Bands |
| Wireless Connectivity | Wi-Fi 4 (802.11 b/g/n) & Bluetooth 5 LE |
| Audio Input | Digital Microphone Array with Noise Cancellation |
| Audio Output | 1W Speaker Driver Interface |
| Display | 0.96 inch OLED 128x64 Pixels |
| Flash Memory | 16MB Quad SPI |
| PSRAM | 8MB Octal SPI |
| Programming Interface | USB Type-C |
| Software Compatibility | Arduino IDE, MicroPython, ESP-IDF |
Anonymous
Apr 12, 2026
Rating: 4/5
Good Value
Voice recognition works well once calibrated. The OLED screen is bright. Would prefer more GPIO pins exposed.
Anonymous
Apr 06, 2026
Rating: 5/5
Perfect for Projects
Used it for a security alert system. The LTE module connects quickly and the ESP32-S3 handles the logic without lag.
Anonymous
Mar 26, 2026
Rating: 5/5
Highly Recommended
Great documentation overall. The MicroPython examples helped me get started with voice commands immediately.
Anonymous
Mar 22, 2026
Rating: 5/5
Amazing IoT Board
The 4G connectivity is stable and the voice recognition works surprisingly well out of the box. Great for remote monitoring projects.
Anonymous
Feb 08, 2026
Rating: 3/5
Setup Took Time
Hardware is good but drivers for the 4G module took some troubleshooting on Windows. Works fine now.
Q: What is the recommended power supply voltage?
A: We recommend a stable 5V 2A power supply via the USB Type-C port for optimal performance.
Q: Is this board waterproof for outdoor use?
A: No, this board is not waterproof. Please use an enclosure if deploying outdoors.
Q: Can I access the GPIO pins for external sensors?
A: Yes, there are 20+ programmable GPIO pins available on the header for connecting external sensors.
Q: Does it support custom voice models?
A: Yes, you can deploy custom voice models using ESP-IDF and the available AI frameworks.
Q: Is the 4G module locked to a specific carrier?
A: No, the 4G LTE module is unlocked and supports most global carriers with a Nano SIM.
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