Description Atomic SPK Base is an audio player base designed for ATOM series controllers. It integrates the NS4168 power amplifier chip with an I2S digital audio input interface, supporting automatic sampling rate detection and adaptive playback to help reduce audio signal distortion. The base includes a microSD card slot for storing and reading audio files, plus a 3.5mm headphone jack and a 1.25mm-2P speaker interface, making it suitable for compact audio playback, wireless speaker, and Wi-Fi speaker projects. Features NS4168 power amplifier chip I2S serial digital audio input interface Supports wide-range sampling rate: 8kHz ~ 96kHz Automatic sampling rate detection and adaptive function microSD card slot for audio file storage 3.5mm headphone jack 1.25mm-2P external speaker interface Specifications Specification Parameter Amplifier Chip NS4168 Amplifier Output 1W (VDD=3.3V) Audio Input Interface I2S serial digital audio input Supported Sampling Rate 8kHz ~ 96kHz Headphone Jack 3.5mm Speaker Interface 1.25mm-2P Speaker Power 1W@8Ω Storage microSD card slot Product Size 24 x 48 x 18mm Package Size 136 x 92 x 8mm Product Weight 10.6g Gross Weight 29g Communication Uses I2S serial digital audio input for audio playback Supports audio file playback from a microSD card Provides headphone and external speaker output options Applications Audio player Wireless speaker Wi-Fi speaker ATOM series audio playback projects Product List 1 x Atomic SPK Base 1 x 1W@8Ω Speaker Other Content Atomic SPK Base is suitable for compact projects that need local audio playback or external audio output. With the microSD card slot, I2S audio input, headphone jack, and speaker interface, it provides a practical audio expansion option for ATOM series controllers. Resources Official Documentation NS4168 Datasheet Play RawPCM Example Play MP3 From microSD Card Example Arduino Quick Start UiFlow1 Documentation UiFlow2 Documentation Atomic SPK Base EasyLoader Official Product Video FAQ What controller series is Atomic SPK Base designed for? It is designed for M5Stack ATOM series controllers. What amplifier chip does it use? It uses the NS4168 power amplifier chip. What audio interface does it use? It uses an I2S serial digital audio input interface. Does it support microSD card playback? Yes. It includes a microSD card slot for storing and reading audio files. Does the package include a speaker? Yes. The package includes 1 x Atomic SPK Base and 1 x 1W@8Ω speaker.
