About this item

The DFRobot Fermion: I2S MEMS Microphone Breakout is a compact and high-performance digital microphone module designed for precise audio capture in embedded and IoT applications. Utilizing a MEMS (Micro-Electro-Mechanical Systems) sensor, this microphone offers excellent sensitivity and low noise, making it ideal for voice recognition, environmental noise monitoring, and other sound-based projects. Unlike traditional analog microphones, the Fermion outputs audio data digitally via the I2S (Inter-IC Sound) interface, which allows direct connection to microcontrollers and processors without needing an external analog-to-digital converter. This digital transmission reduces signal interference and ensures high audio fidelity. Operating at 3.3V, the breakout board is compatible with popular platforms such as Arduino, ESP32, and Raspberry Pi. It provides a simple pinout including power, ground, and the I2S signals: serial clock (SCK), word select (WS), and serial data (SD). This makes integration straightforward and development fast. With a wide frequency response from 60 Hz to 15 kHz and a signal-to-noise ratio of 61 dB or higher, the Fermion can accurately capture a broad range of sound frequencies, from human speech to ambient noise. Its small size and robust design make it suitable for wearables, smart assistants, robots, and environmental sensing devices. Overall, the Fermion I2S MEMS microphone offers an easy, reliable, and high-quality solution for digital audio input in a wide variety of applications.