Voice recognition module LD3320 Integration with Microcontrollers

Voice recognition module LD3320 Integration with Microcontrollers

1. Overview

LC LD3320 module is voice recognition module, MCU use STC11L08XE, its programming way the same as  51、52 series microcontroller. LD3320  module provide 16 I/O port. It can be used to Smart home、smart car DIY、Voice control embedded products etc.

2. The function and characteristics

 - Working voltage: 5V
  - Communication mode: TTL
  - MCU reserved IO number: 16

3. Introduced the hardware and instructions

 - The board size: 64.8*37.2mm      
  - The board function description:
5V: Working voltage
GND: Ground
RXD、TXD: TTL
MICP: The microphone input anode side
MICN: The microphone input negative side
MONO: Single word input
LINL: Stereo left
LINR: Stereo right
SPON: The speaker output negative side
SPOP: The speaker output anode side