Tags

I2S

Everything tagged “I2S” across notes, resources, and Mochi logs.

Macro photo of a MEMS microphone package showing its acoustic port and package marking

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NotesHardwareAugust 10, 2026

What Is a MEMS Microphone? From a Silicon Diaphragm to ESP32 Audio

Learn how MEMS microphones work, how analog, PDM, and I2S outputs differ, and how to avoid PCB, power, and acoustic-port mistakes.

Hardware Firmware ESP32-S3 MEMS Microphone I2S Embedded Audio Mochi

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Original open robot prototype showing its controller, speaker, battery and display hardware

NotesFirmwareAugust 5, 2026

Two-Way I2S Audio on ESP32-S3: I2S Microphone and I2S Speaker

A practical explanation of BCLK, WS, DIN, DOUT, full-duplex audio, sample rate, and buffers when building two-way I2S audio on ESP32-S3.

Firmware Hardware ESP32-S3 Audio I2S

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