Waveshare LD3320 Voice Recognition Module Non-specific Vocal Sound Control Development Board

Waveshare LD3320 Voice Recognition Module Non-specific Vocal Sound Control Development Board Description

Overview: Support non-specific voice recognition module with SPI interface and parallel interface, onboard microphone and active crystal oscillator, which is convenient to realize voice recognition, voice control and human-machine dialogue function in electronic products. Characteristic: High accuracy and practical voice recognition effect. Non-specific person speech recognition technology: does not require users to perform recording training. Dynamically editable list of recognized keywords: only need to transfer the recognized keywords to the chip in the form of character strings, which can take effect immediately in the next recognition. For example, in the programming of 51 and other MCUs, users simply set the register of the chip, and dynamically import the content of identifying keywords such as 'Hello' into the chip, and the chip can recognize such set keywords. . Support users to freely edit 50 keywords: at the same time, they can be identified in 50 keywords, and end users can edit and update the content of these 50 keywords at any time according to the needs of the scene. Parameter: Working voltage: 3.3V (must use 3.3V level single chip microcomputer to drive) Built-in mono mono 16-bit A/D analog-to-digital conversion Built-in two-channel stereo 16-bit D/A digital-to-analog conversion Built-in 20mW dual channel headphone amplifier output Built-in 550mW mono speaker amplifier output Support parallel interface or SPI interface Built-in phase-locked circuit PLL, input master control clock frequency is 2MHz-34MHz Working voltage: (VDD: for internal core) 3.3V 48pin QFN 7*7 standard package Power consumption in power saving mode: 1uA Applications: Induction cooker/microwave oven/smart appliance operation, navigator, vending machine, MP3/MP4, digital photo frame, smart toy/dialog toy, PMP/game machine, set-top box/color TV remote control, subway vending machine, tour guide machine, building TV Advertising on demand, voice control of public lighting system/sanitary system/smart home Note: Except for the different pin headers, the following two models have the same properties as PCB circuits. LD3320 Board: curved pin header LD3320 Board (B): straight pin Package includes: 1 x Voice Recognition Module