The ASR Module is an A1 intelligent offline voice module based on the CI1302 chip. It features a microphone for clear audio capture and a built-in speaker for high-quality audio feedback. It also supports mid-voice interruption, allowing for flexible interruption and quick response to new commands during voice recognition. Built-in (Audio Cancellation) effectively removes and noise interference, improving voice recognition accuracy. The product comes pre-set with 53 English wake words and feedback words, supporting device wake-up via UART commands or voice keywords. It supports user-defined recognition words in Chinese, English, Japanese, and Korean. Users can modify the wake-up word by regenerating the firmware. The device supports up to 300 words and uses a UART communication interface for data transmission, with the option to switch between different serial port pins via a DIP switch. This product is suitable for applications such as AI assistants, smart homes, security monitoring, automotive systems, robotics and smart hardware, and healthcare, making it an ideal choice for achieving intelligent voice interaction. Features Intelligent offline voice module noise reduction processing Supports up to 300 words 53 built-in English commands (presumably incomplete) UART communication interface Supports user-defined wake words Firmware can be programmed via the reserved USB Type-C interface Equipped with microphone and built-in speaker Development platform: UiFlow2, Parameters: AI Voice Chip: C11302 Words: Supports up to 300 words, 53 pre-set commands Wake-up Method: Voice keyword or UART serial communication Microphone: Analog microphone, model GMI4527P-2C-32db Speaker: Cavity speaker 8Q@0.8W (for output device wake-up feedback) Communication Method: UART serial communication, default baud rate: 115200@8N1 Noise Reduction: cancellation noise reduction Wake-up Distance: Up to 6.4 meters at 40dB ambient noise; up to 1.8 meters at 54dB ambient noise Power Consumption: Standby: DC 5V@52.14mA Operating: Low Volume: DC 5V@43.38mA Medium Volume: DC 5V@85.26mA Color: As Shown Material: plastic Package Contents: 1 * ASR Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.