M5Stack ASR Unit with Offline Voice Module CI-03T

The M5Stack ASR Unit with the intelligent offline speech module CI-03T takes your projects to the next level of voice control – all without an internet connection. You can recognize up to 300 voice commands locally without relying on cloud services. The module is equipped with a microphone and a built-in speaker, enabling both voice input and acoustic feedback. With support for AEC noise cancellation, echoes and background noise are effectively removed for reliable recognition. 42 commands are already pre-installed, and you can define your own wake words via UART. The interrupt function is particularly practical, allowing you to interrupt ongoing voice commands to quickly respond to new inputs. Integration is straightforward – compatible with UIFlow and Arduino. Whether for smart home applications, robotics, automotive, or healthcare – this small, powerful module is your solution for intelligent voice interactions.

Features:

Offline voice recognition: The module can recognize up to 300 commands locally – without an internet connection.
Integrated microphone and speaker: For clear voice capture and real-time acoustic feedback.
Pre-installed voice commands: Start right away with 42 commands ready to use.
Custom wake words: Define and customize your own keywords for activation.
AEC noise cancellation: Thanks to acoustic echo cancellation, disruptive background noises are reduced.
Voice interruption: Allow commands to be interrupted during a conversation – for flexible operation.
Serial communication (UART): The module operates with a standardized baud rate of 115200 @ 8N1.
Compact design: Ideal for integration into existing systems with limited space.
Multilingual support: Supports multiple languages through custom wake words.