SPECIFICATIONS

Brand Name: NullLab

Choice: yes

Condition: New

High-concerned chemical: none

Origin: Mainland China

Package: SMD

Supply Voltage: 6-16V

Type: Logic ICs

is_customized: Yes

semi_Choice: yes

DOCS：https://github.com/nulllaborg/i2s_mems_digital_microphone_module

I2S MEMS Microphone Module (ZTS6631)

This is a high-performance, low-power MEMS microphone module with a standard I2S digital audio interface, designed for easy integration with microcontrollers and development boards such as Arduino, Raspberry Pi, and ESP32.

Key Features

• Built-in high sensitivity MEMS acoustic sensor (ZTS6631)

• Standard I2S digital audio output interface

• PH2.0 5-pin connector for easy and stable wiring

• Wide operating voltage range: compatible with 3.3V and 5V systems

• Compact size with mounting holes for easy installation

• Low power consumption, suitable for battery-powered applications

• High signal-to-noise ratio (SNR) for clear audio capture

Pin Definition

Pin Label Function Description

G                Ground (GND)

V                Power Supply (3.3V~5V)

DATA        I2S Serial Data Output (SD)

LRC        I2S Left/Right Clock (WS / LRCLK)

BCK        I2S Bit Clock (SCK / BCLK)

Typical Applications

• Voice recognition and voice control projects

• Audio recording and monitoring systems

• Smart home devices and IoT voice interaction

• DIY electronics and educational projects

• Portable audio devices and wearables

Compatibility

Fully compatible with popular development platforms:

• Arduino (Uno, Nano, ESP32, etc.)

• Raspberry Pi (Zero, 3B+, 4B, etc.)

• ESP32 / ESP8266 series

• Other microcontrollers supporting I2S interface