M5Stack A149 Atomic Echo Base

M5Stack A149 Atomic Echo Base is a voice recognition base designed specifically for the M5 Atom series. The M5Stack A149 Atomic Echo Base uses an integrated solution with the ES8311 mono audio decoder, a MEMS microphone, and an NS4150B power amplifier. The ES8311 offers 24-bit audio resolution and a sample rate of 16KHz to 64KHz, supporting I²S communication and high-fidelity audio processing. The MEMS microphone with a high signal-to-noise ratio (SNR) is suitable for automatic speech recognition, while the built-in speaker ensures efficient audio output. The A149 device supports full-duplex communication, enabling simultaneous voice transmission and reception. The device offers enhancing interactive features such as speech recognition, wake-up, and audio playback. The A149 Atomic Echo Base is ideal for applications in smart homes and education.