Atomic Audio 3.5 Base

Description

Atomic Audio-3.5 Base is a voice recognition and audio playback base designed for the Atom series controllers (not compatible with Atom Voice). It integrates an ES8311 mono audio codec, a MEMS microphone, and an NS4150B power amplifier, equipped with a standard 3.5mm audio jack and a 4-segment TRRS connector (CTIA standard) to support both audio output and microphone input. The ES8311 supports 24-bit audio resolution with a sampling rate range of 16kHz ~ 64kHz and communicates via the I2S interface, enabling high-fidelity audio processing. The onboard MEMS microphone offers a high signal-to-noise ratio and digital output capability, optimized for automatic speech recognition scenarios, while the integrated speaker delivers efficient audio output. This base supports full-duplex communication for simultaneous audio transmission and reception, making it suitable for applications such as voice assistants, voice control terminals, smart home voice gateways, and voice interaction devices.

Features

• 3.5mm audio jack supporting audio output + microphone input
• Integrated ES8311 high-fidelity audio codec with 24-bit high-resolution audio processing
• Full-duplex voice communication with simultaneous audio send and receive
• Auto-switching functionality
  • Onboard audio source ↔ external microphone (auto-switch during playback)
  • Speaker ↔ external microphone (auto-switch during recording)

Includes

• 1 x Atomic Audio-3.5 Base
• 1 x Hex Key L-Shape 1.5mm (For M2 Screw)
• 1 x M2 * 8mm cap head machine screw

Applications

• Atom expansion base
• DIY node controller
• Peripheral interface expansion

Specifications