Attributes

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

5 reviews

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.

5 FAQ

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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