Description M5Stack Speaker 2 Hat is a compact I2S audio output module designed for the M5StickC Plus platform. Built around the MAX98357 digital audio amplifier and a 1W speaker, this MAX98357 speaker hat provides clean digital sound output for compact embedded projects that need reliable audio playback. It is a practical choice for portable sound output, notification playback, and embedded voice prompt designs. Features M5Stack Speaker 2 Hat uses the MAX98357 digital audio amplifier for stable sound playback. This I2S audio output module supports 16-bit audio input and sample rates from 32kHz to 192kHz. The MAX98357 speaker hat supports multiple output modes including mono and stereo audio handling. Built-in short-circuit and over-temperature protection improve operating safety. It works well for portable sound output, alert playback, and embedded voice prompt functions. Specifications Product HAT-SPK2 Amplifier IC MAX98357 Speaker 1W speaker Power Output Maximum 20W Signal-to-Noise Ratio 103dB Distortion Rate 0.1% Supply Voltage 4.5V - 5.5V Operating Temperature Range 0 - 40°C Input Audio Format I2S, left-aligned, right-aligned Sample Rate 32kHz to 192kHz Control Interface I2C, SPI, GPIO Product Size 24mm × 18.6mm × 13.7mm Package Size 136mm × 92mm × 13mm Product Weight 4.6g Package Weight 8.1g Applications This audio add-on is well suited for wearable UI feedback, alarm output, compact media effects, educational builds, and small controller projects that need portable sound output. Because this I2S audio output module adds amplified speaker playback without a large external circuit, it is also a strong fit for embedded voice prompt systems and status-notification devices. Product List 1 × HAT-SPK2 Other Content Resources M5Stack Speaker 2 Hat Official Docs HAT-SPK2 Schematics PDF MAX98357 Datasheet M5StickC Plus Speaker 2 Hat Example FAQ What is Speaker 2 Hat used for?It is an I2S audio output module for playback, alarms, and embedded voice prompt output on compact M5StickC projects. Why choose this module?M5Stack Speaker 2 Hat gives a ready-to-use MAX98357 speaker hat solution with speaker hardware, amplifier integration, and reliable portable sound output in a small footprint.
