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Home / Development Boards & Control Boards / XiaoZhi AI Expansion Board 44-Pin 42-Pin Base Board ESP32-S3 Breadboard Replacement ML307 R4G Module
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Compatibility ESP32-S3, XiaoZhi Series
Pin Configuration 44-Pin / 42-Pin Baseboard
Communication Module ML307R4G LTE Cat.1
Input Voltage 5V DC via USB-C
Logic Level 3.3V
PCB Dimensions 65mm x 30mm
Weight 15g
Interface USB Type-C, GPIO Headers
Operating Temperature -20°C to 85°C
Material FR-4 Fiberglass

5 reviews

A

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for IoT projects

Works seamlessly with ESP32-S3. The ML307 module integration saves so much time.

A

Anonymous

Mar 11, 2026

Rating: 3/5

Steep learning curve

Great hardware but documentation for the AI features is sparse.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Replaces breadboard nicely

No more messy wires. Stable connection for LTE testing.

A

Anonymous

Feb 17, 2026

Rating: 4/5

Good board minor issues

Solid construction. Pin labeling could be clearer on the silkscreen.

A

Anonymous

Jan 20, 2026

Rating: 5/5

Highly recommended

Robust power management and easy to flash firmware.

5 FAQ

Q: Does it support MicroPython?

A: Yes MicroPython and CircuitPython are both supported.

Q: Does this support Arduino IDE?

A: Yes it is fully compatible with the ESP32-S3 Arduino core.

Q: Can I use a 5V sensor directly?

A: No the GPIO logic is 3.3V. Use a level shifter for 5V sensors.

Q: What is the max current output?

A: The 3.3V pin can supply up to 500mA safely.

Q: Is the LTE antenna included?

A: The board has a connector but the external antenna is sold separately.

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