MAX98357 I2S 3W Class D Audio Amplifier Module for ESP32 Arduino Raspberry Pi

Modules

MAX98357 I2S 3W Class D Audio Decoder Amplifier Module

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৳270.00

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The MAX98357 I2S 3W Class D Audio Decoder Module is a compact digital audio amplifier board designed for projects that require high-quality audio output from an I2S digital audio source. Based on the MAX98357 audio amplifier IC, this module combines I2S digital audio decoding and Class D amplification in a small, easy-to-integrate PCB, making it a practical choice for Arduino, ESP32, Raspberry Pi, microcontroller, embedded audio, and DIY electronics projects.

The module accepts digital audio through the I2S interface, eliminating the need for a separate analog audio input and helping reduce noise associated with long analog signal paths. Its Class D amplifier architecture provides efficient audio amplification while keeping power consumption and heat generation relatively low compared with traditional linear amplifier designs.

With an output capability of up to 3W, the MAX98357 module can drive a suitable speaker directly, making it useful for compact speakers, smart devices, IoT projects, voice assistants, portable audio systems, digital instruments, alarms, and educational electronics projects. The board is particularly popular among students, engineers, makers, and embedded developers working with ESP32 and other I2S-compatible microcontrollers.

The MAX98357 I2S amplifier module is also suitable for projects where space is limited. Its compact PCB design and simple digital interface make it convenient for prototyping and integration into custom electronic devices. Because the audio signal remains digital until amplification, it can be a useful solution for applications where clean digital audio transmission is preferred.

For Bangladeshi electronics students, hobbyists, Arduino and ESP32 developers, this module provides an affordable way to experiment with I2S digital audio, Class D amplification, and embedded sound systems. It can be used for voice playback, music projects, Bluetooth or Wi-Fi audio devices, smart home products, robotics, multimedia systems, and other DIY electronics applications.

Key Specifications

Specification	Details
IC / Chip	MAX98357
Module Type	I2S Digital Audio Class D Amplifier
Audio Interface	I2S
Amplifier Type	Class D
Output Power	Up to 3W
Audio Input	Digital I2S
Speaker Output	Direct speaker connection
Application	Arduino, ESP32, Raspberry Pi, MCU, DIY Audio
PCB Type	Compact Module
Suitable For	Embedded & Portable Audio Projects

Features:

MAX98357 based digital audio amplifier module
I2S digital audio interface
Class D audio amplifier technology
Up to 3W audio output
Direct speaker driving capability
Compact PCB suitable for embedded projects
Ideal for ESP32 and Arduino-based audio projects
Suitable for Raspberry Pi and other I2S-compatible systems
Useful for IoT, robotics and smart-device applications
Good choice for DIY digital audio projects

Frequently Asked Questions

The MAX98357 module is an I2S digital audio Class D amplifier board designed to amplify digital audio and drive a speaker.

It uses the I2S digital audio interface for receiving audio data from compatible microcontrollers and processors.

This module is commonly marketed as a 3W Class D audio amplifier, with actual output depending on supply voltage, speaker impedance, audio signal and operating conditions.

Yes. The amplifier is designed to provide amplified speaker output without requiring a separate external power amplifier stage.

It can be used in ESP32 audio projects, Raspberry Pi systems, IoT devices, smart speakers, robotics, voice playback systems, portable electronics and DIY audio projects.