Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Processor	Dual-core 32-bit LX7
Flash Memory	16 MB
PSRAM	8 MB Octal
Wi-Fi Protocol	802.11b/g/n
Bluetooth Version	5.0 LE
Audio Codec	ES8311
Microphone Count	2 Digital Mics
USB Interface	USB Type-C OTG
Operating Voltage	3.3V / 5V Input
Board Size	65 x 55 mm

5 reviews

Anonymous

Mar 09, 2026

Rating: 5/5

Clear Sound

The audio codec delivers excellent sound quality for the price point.

Anonymous

Mar 06, 2026

Rating: 5/5

Great for AI Voice

This board works perfectly for my voice assistant project. The mic quality is clear.

Anonymous

Mar 02, 2026

Rating: 5/5

Stable Connection

Wi-Fi and BLE connectivity are very stable. No dropouts during testing.

Anonymous

Feb 19, 2026

Rating: 4/5

Good Hardware

Solid build quality. Documentation could be slightly better for beginners.

Anonymous

Feb 18, 2026

Rating: 5/5

Easy to Flash

Flashing firmware was straightforward using the USB-C port.

5 FAQ

Q: What is the recommended input voltage?

A: We recommend 5V via USB Type-C. The VIN pin accepts 3.3V to 5V.

Q: Does this come with a protective case?

A: No, this package includes the bare development board only. Cases are sold separately.

Q: Can I connect a camera module?

A: Yes, it supports DVP camera interfaces via available GPIO pins.

Q: Are the microphones analog or digital?

A: The board features 2 digital microphones using the I2S interface.

Q: Is this compatible with Arduino IDE?

A: Yes, this board is fully compatible with Arduino IDE and ESP-IDF.

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