Voice Recognition Module V3.1

Voice Recognition Module V3.1

Add voice control to your Arduino and embedded projects with the Voice Recognition Module V3.1. This compact, offline speech recognition module allows users to train and store custom voice commands without requiring an internet connection. It supports up to 80 voice commands and can recognize up to 7 commands simultaneously, making it ideal for home automation, robotics, smart devices, and interactive electronics projects. Compatible with Arduino, ESP32, STM32, and other microcontrollers through UART communication.

Features

• Supports up to 80 user-trained voice commands
• Up to 7 active voice commands can run simultaneously
• Offline voice recognition – no internet required
• UART and GPIO control interfaces
• Compatible with Arduino and other microcontrollers
• User-trainable commands for customized applications
• High recognition accuracy under ideal conditions
• Includes external microphone for clear voice input
• Easy integration with robotics and automation projects

Specifications

• Operating Voltage: 4.5V – 5.5V
• Current Consumption: < 40mA
• Interface: UART (5V TTL) / GPIO
• Voice Command Capacity: 80 commands
• Active Commands: Up to 7 at a time
• Maximum Command Length: 1.5 seconds (1–2 words)
• Microphone Interface: 3.5mm Mono Jack + Mic Pin Interface
• Dimensions: 50mm × 31mm × 8mm
• Recognition Accuracy: Up to 99% in ideal environments

Applications

• Voice-controlled robots
• Smart home automation
• Home appliance control
• Security systems
• Interactive projects
• Assistive technology devices
• IoT and automation systems

Package Includes

• 1 × Voice Recognition Module V3.1
• 1 × Microphone