MAX98357 I2S Amplifier Module — Compact digital audio amplifier for portable speakers and home automation projects Key benefits — why you need this module Easy integration: Direct I2S digital input lets you connect audio data from microcontrollers or digital audio sources without an external DAC. Small, lowpower solution: Designed for spacelimited setups and low power consumption, ideal where size and energy efficiency matter. Clear, usable output: Up to 3.2 W output delivers clear sound for small speakers and embedded audio applications. Developerfriendly: Plugandplay compatibility simplifies prototyping and development for electronics enthusiasts and professionals working on Studio Sound Electronics and Digital Sound Projects. What it does and how it stands out Function: Acts as a digitaltoamplifier bridge, accepting I2S audio and producing amplified speaker output on a compact PCB module. Compatibility: Works with common microcontrollers and digital audio sources that support I2S audio format, enabling straightforward integration into existing systems. Performance: Provides up to 3.2 W of audio power with low overall power draw, suitable for portable and embedded devices where battery life and thermal management matter. Practical design: Small form factor fits spacelimited installations and development boards used in hobbyist and professional projects. Important attributes Model: MAX98357 I2S Amplifier Module (uses the MAX98357 amplifier IC) Input: I2S digital audio interface Output: Up to 3.2 W clear sound output Power and efficiency: Low power consumption, suitable for battery or lowvoltage systems Form factor: Compact PCB module designed for integration into portable speakers, automation panels, or prototype boards Typical use scenarios Portable speaker prototype: Add clear, amplified audio to a batterypowered Bluetooth or microcontrollerbased speaker without a separate DAC. Home automation audio: Drive chimes, voice prompts, or alert tones in smart home panels or automation hubs where compact size and low power matter. Embedded sound for electronics projects: Integrate into custom designs (development boards, wearable devices, kiosks) that require direct I2S audio input and reliable smallsignal amplification. Why choose this module Reduces component count by combining digital audio input and amplification in one module. Speeds development with a plugandplay approach for microcontrollerbased audio projects. Delivers a balance of size, power efficiency, and clear audio output suitable for a wide range of Studio Sound Electronics and Digital Sound Projects.